diff --git a/Cargo.lock b/Cargo.lock
index 6b8dff8..400fc56 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,7 +10,7 @@ dependencies = [
 
 [[package]]
 name = "aho-corasick"
-version = "0.6.9"
+version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -96,6 +96,14 @@ dependencies = [
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ansi_term"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "antidote"
 version = "1.0.0"
@@ -384,15 +392,6 @@ dependencies = [
  "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "env_logger"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "error-chain"
 version = "0.10.0"
@@ -693,6 +692,14 @@ name = "maplit"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "matchers"
+version = "0.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "regex-automata 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "matches"
 version = "0.1.8"
@@ -903,13 +910,11 @@ dependencies = [
  "async-std 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fs2 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "hubcaps 0.3.16 (git+https://github.com/grahamc/hubcaps.git)",
  "hyper 0.10.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper-native-tls 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "lapin 1.0.0-beta3 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "md5 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "nom 4.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -919,6 +924,8 @@ dependencies = [
  "serde_json 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
  "sys-info 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-subscriber 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "uuid 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1180,14 +1187,22 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "0.2.11"
+version = "1.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1197,11 +1212,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "regex-syntax"
-version = "0.5.6"
+version = "0.6.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "remove_dir_all"
@@ -1325,6 +1337,14 @@ dependencies = [
  "opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "sharded-slab"
+version = "0.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.2"
@@ -1433,7 +1453,7 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "0.3.6"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1449,6 +1469,71 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tracing"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-attributes 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "tracing-attributes"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "tracing-log"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "tracing-serde"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "tracing-subscriber"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "matchers 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sharded-slab 0.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-log 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing-serde 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "traitobject"
 version = "0.1.0"
@@ -1469,11 +1554,6 @@ name = "ucd-trie"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "ucd-util"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "unicase"
 version = "1.4.2"
@@ -1525,11 +1605,6 @@ name = "utf8-ranges"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "utf8-ranges"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "uuid"
 version = "0.4.0"
@@ -1598,7 +1673,7 @@ dependencies = [
 
 [metadata]
 "checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
-"checksum aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1e9a933f4e58658d7b12defcf96dc5c720f20832deebe3e0a19efd3b6aaeeb9e"
+"checksum aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)" = "8716408b8bc624ed7f65d223ddb9ac2d044c0547b6fa4b0d554f3a9540496ada"
 "checksum amq-proto 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "66d79639b71f74c7006c12683cc2ff221615a51a741688fa7798ccd080dc54d3"
 "checksum amq-protocol 6.0.0-rc2 (registry+https://github.com/rust-lang/crates.io-index)" = "92fc4b6b679c4078c6eb031bcc588852708c59d61baba14c4267963a9a8ccd4c"
 "checksum amq-protocol-codegen 6.0.0-rc2 (registry+https://github.com/rust-lang/crates.io-index)" = "a3967869d2b1c655d82ffcdbc8f7f122075cc72bb2f3c468eada5514b2d9a2e2"
@@ -1606,6 +1681,7 @@ dependencies = [
 "checksum amq-protocol-types 6.0.0-rc2 (registry+https://github.com/rust-lang/crates.io-index)" = "111f266debc7afc9962e783d8aee36a4cdefebf6ae34f9e02954af2f611cccb8"
 "checksum amq-protocol-uri 6.0.0-rc2 (registry+https://github.com/rust-lang/crates.io-index)" = "a39076cb5440bc5f2b222f3d60fa08cee39f63f9e020180e28fa251da6d57e00"
 "checksum amqp 0.1.0 (git+https://github.com/grahamc/rust-amqp.git)" = "<none>"
+"checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
 "checksum antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "34fde25430d87a9388dadbe6e34d7f72a462c8b43ac8d309b42b0a8505d7e2a5"
 "checksum arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
 "checksum async-std 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "538ecb01eb64eecd772087e5b6f7540cbc917f047727339a472dafed2185b267"
@@ -1643,7 +1719,6 @@ dependencies = [
 "checksum either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3be565ca5c557d7f59e7cfcf1844f9e3033650c929c6566f511e8005f205c1d0"
 "checksum enum_primitive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "be4551092f4d519593039259a9ed8daedf0da12e5109c5280338073eaeb81180"
 "checksum env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "15abd780e45b3ea4f76b4e9a26ff4843258dd8a3eed2775a0e7368c2e7936c2f"
-"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
 "checksum error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d9435d864e017c3c6afeac1654189b06cdb491cf2ff73dbf0d73b0f292f42ff8"
 "checksum fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
 "checksum foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
@@ -1681,6 +1756,7 @@ dependencies = [
 "checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
 "checksum lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4d06ff7ff06f729ce5f4e227876cb88d10bc59cd4ae1e09fbb2bde15c850dc21"
 "checksum maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
+"checksum matchers 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f099785f7595cc4b4553a174ce30dd7589ef93391ff414dbb67f62392b9e0ce1"
 "checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 "checksum maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
 "checksum md5 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "79c56d6a0b07f9e19282511c83fc5b086364cbae4ba8c7d5f190c3d9b0425a48"
@@ -1733,9 +1809,10 @@ dependencies = [
 "checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 "checksum redox_syscall 0.1.50 (registry+https://github.com/rust-lang/crates.io-index)" = "52ee9a534dc1301776eff45b4fa92d2c39b1d8c3d3357e6eb593e0d795506fc2"
 "checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
-"checksum regex 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9329abc99e39129fcceabd24cf5d85b4671ef7c29c50e972bc5afe32438ec384"
+"checksum regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a6020f034922e3194c711b82a627453881bc4682166cabb07134a10c26ba7692"
+"checksum regex-automata 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "ae1ded71d66a4a97f5e961fd0cb25a5f366a42a41570d16a763a69c092c26ae4"
 "checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
-"checksum regex-syntax 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7d707a4fa2637f2dca2ef9fd02225ec7661fe01a53623c1e6515b6916511f7a7"
+"checksum regex-syntax 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)" = "7fe5bd57d1d7414c6b5ed48563a2c855d995ff777729dcd91c369ec7fea395ae"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
 "checksum rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "adacaae16d02b6ec37fdc7acfcddf365978de76d1983d3ee22afc260e1ca9619"
 "checksum ryu 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ed3d612bc64430efeb3f7ee6ef26d590dce0c43249217bddc62112540c7941e1"
@@ -1751,6 +1828,7 @@ dependencies = [
 "checksum serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)" = "9e549e3abf4fb8621bd1609f11dfc9f5e50320802273b12f3811a67e6716ea6c"
 "checksum serde_json 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)" = "a7894c8ed05b7a3a279aeb79025fdec1d3158080b75b98a08faf2806bb799edd"
 "checksum sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f7d94d0bede923b3cea61f3f1ff57ff8cdfd77b400fb8f9998949e0cf04163df"
+"checksum sharded-slab 0.0.9 (registry+https://github.com/rust-lang/crates.io-index)" = "06d5a3f5166fb5b42a5439f2eee8b9de149e235961e3eb21c5808fc3ea17ff3e"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
 "checksum socket2 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)" = "03088793f677dce356f3ccc2edb1b314ad191ab702a5de3faf49304f7e104918"
@@ -1763,13 +1841,18 @@ dependencies = [
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
 "checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
-"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
+"checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
 "checksum time 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "847da467bf0db05882a9e2375934a8a55cffdc9db0d128af1518200260ba1f6c"
+"checksum tracing 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1721cc8cf7d770cc4257872507180f35a4797272f5962f24c806af9e7faf52ab"
+"checksum tracing-attributes 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "7fbad39da2f9af1cae3016339ad7f2c7a9e870f12e8fd04c4fd7ef35b30c0d2b"
+"checksum tracing-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "0aa83a9a47081cd522c09c81b31aec2c9273424976f922ad61c053b58350b715"
+"checksum tracing-log 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5e0f8c7178e13481ff6765bd169b33e8d554c5d2bbede5e32c356194be02b9b9"
+"checksum tracing-serde 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b6ccba2f8f16e0ed268fc765d9b7ff22e965e7185d32f8f1ec8294fe17d86e79"
+"checksum tracing-subscriber 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1d53c40489aa69c9aed21ff483f26886ca8403df33bdc2d2f87c60c1617826d2"
 "checksum traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
 "checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
 "checksum typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
 "checksum ucd-trie 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c"
-"checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86"
 "checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
 "checksum unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "6a0180bc61fc5a987082bfa111f4cc95c4caff7f9799f3e46df09163a937aa25"
@@ -1777,7 +1860,6 @@ dependencies = [
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
 "checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
-"checksum utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "796f7e48bef87609f7ade7e06495a87d5cd06c7866e6a5cbfceffc558a243737"
 "checksum uuid 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7cfec50b0842181ba6e713151b72f4ec84a6a7e2c9c8a8a3ffc37bb1cd16b231"
 "checksum vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3fc439f2794e98976c88a2a2dafce96b930fe8010b0a256b3c2199a773933168"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
diff --git a/Cargo.nix b/Cargo.nix
index ecbed9d..9f40397 100644
--- a/Cargo.nix
+++ b/Cargo.nix
@@ -120,13 +120,11 @@ rec {
         (cratesIO.crates."async_std"."${deps."ofborg"."0.1.9"."async_std"}" deps)
         (cratesIO.crates."chrono"."${deps."ofborg"."0.1.9"."chrono"}" deps)
         (cratesIO.crates."either"."${deps."ofborg"."0.1.9"."either"}" deps)
-        (cratesIO.crates."env_logger"."${deps."ofborg"."0.1.9"."env_logger"}" deps)
         (cratesIO.crates."fs2"."${deps."ofborg"."0.1.9"."fs2"}" deps)
         (crates."hubcaps"."${deps."ofborg"."0.1.9"."hubcaps"}" deps)
         (cratesIO.crates."hyper"."${deps."ofborg"."0.1.9"."hyper"}" deps)
         (cratesIO.crates."hyper_native_tls"."${deps."ofborg"."0.1.9"."hyper_native_tls"}" deps)
         (cratesIO.crates."lapin"."${deps."ofborg"."0.1.9"."lapin"}" deps)
-        (cratesIO.crates."log"."${deps."ofborg"."0.1.9"."log"}" deps)
         (cratesIO.crates."lru_cache"."${deps."ofborg"."0.1.9"."lru_cache"}" deps)
         (cratesIO.crates."md5"."${deps."ofborg"."0.1.9"."md5"}" deps)
         (cratesIO.crates."nom"."${deps."ofborg"."0.1.9"."nom"}" deps)
@@ -136,6 +134,8 @@ rec {
         (cratesIO.crates."serde_json"."${deps."ofborg"."0.1.9"."serde_json"}" deps)
         (cratesIO.crates."sys_info"."${deps."ofborg"."0.1.9"."sys_info"}" deps)
         (cratesIO.crates."tempfile"."${deps."ofborg"."0.1.9"."tempfile"}" deps)
+        (cratesIO.crates."tracing"."${deps."ofborg"."0.1.9"."tracing"}" deps)
+        (cratesIO.crates."tracing_subscriber"."${deps."ofborg"."0.1.9"."tracing_subscriber"}" deps)
         (cratesIO.crates."uuid"."${deps."ofborg"."0.1.9"."uuid"}" deps)
       ]);
     };
@@ -144,13 +144,11 @@ rec {
       async_std."${deps.ofborg."0.1.9".async_std}".default = true;
       chrono."${deps.ofborg."0.1.9".chrono}".default = true;
       either."${deps.ofborg."0.1.9".either}".default = true;
-      env_logger."${deps.ofborg."0.1.9".env_logger}".default = true;
       fs2."${deps.ofborg."0.1.9".fs2}".default = true;
       hubcaps."${deps.ofborg."0.1.9".hubcaps}".default = true;
       hyper."${deps.ofborg."0.1.9".hyper}".default = true;
       hyper_native_tls."${deps.ofborg."0.1.9".hyper_native_tls}".default = true;
       lapin."${deps.ofborg."0.1.9".lapin}".default = true;
-      log."${deps.ofborg."0.1.9".log}".default = true;
       lru_cache."${deps.ofborg."0.1.9".lru_cache}".default = true;
       md5."${deps.ofborg."0.1.9".md5}".default = true;
       nom."${deps.ofborg."0.1.9".nom}".default = true;
@@ -161,6 +159,11 @@ rec {
       serde_json."${deps.ofborg."0.1.9".serde_json}".default = true;
       sys_info."${deps.ofborg."0.1.9".sys_info}".default = true;
       tempfile."${deps.ofborg."0.1.9".tempfile}".default = true;
+      tracing."${deps.ofborg."0.1.9".tracing}".default = true;
+      tracing_subscriber = fold recursiveUpdate {} [
+        { "${deps.ofborg."0.1.9".tracing_subscriber}"."json" = true; }
+        { "${deps.ofborg."0.1.9".tracing_subscriber}".default = true; }
+      ];
       uuid = fold recursiveUpdate {} [
         { "${deps.ofborg."0.1.9".uuid}"."v4" = true; }
         { "${deps.ofborg."0.1.9".uuid}".default = true; }
@@ -170,13 +173,11 @@ rec {
       (cratesIO.features_.async_std."${deps."ofborg"."0.1.9"."async_std"}" deps)
       (cratesIO.features_.chrono."${deps."ofborg"."0.1.9"."chrono"}" deps)
       (cratesIO.features_.either."${deps."ofborg"."0.1.9"."either"}" deps)
-      (cratesIO.features_.env_logger."${deps."ofborg"."0.1.9"."env_logger"}" deps)
       (cratesIO.features_.fs2."${deps."ofborg"."0.1.9"."fs2"}" deps)
       (features_.hubcaps."${deps."ofborg"."0.1.9"."hubcaps"}" deps)
       (cratesIO.features_.hyper."${deps."ofborg"."0.1.9"."hyper"}" deps)
       (cratesIO.features_.hyper_native_tls."${deps."ofborg"."0.1.9"."hyper_native_tls"}" deps)
       (cratesIO.features_.lapin."${deps."ofborg"."0.1.9"."lapin"}" deps)
-      (cratesIO.features_.log."${deps."ofborg"."0.1.9"."log"}" deps)
       (cratesIO.features_.lru_cache."${deps."ofborg"."0.1.9"."lru_cache"}" deps)
       (cratesIO.features_.md5."${deps."ofborg"."0.1.9"."md5"}" deps)
       (cratesIO.features_.nom."${deps."ofborg"."0.1.9"."nom"}" deps)
@@ -186,6 +187,8 @@ rec {
       (cratesIO.features_.serde_json."${deps."ofborg"."0.1.9"."serde_json"}" deps)
       (cratesIO.features_.sys_info."${deps."ofborg"."0.1.9"."sys_info"}" deps)
       (cratesIO.features_.tempfile."${deps."ofborg"."0.1.9"."tempfile"}" deps)
+      (cratesIO.features_.tracing."${deps."ofborg"."0.1.9"."tracing"}" deps)
+      (cratesIO.features_.tracing_subscriber."${deps."ofborg"."0.1.9"."tracing_subscriber"}" deps)
       (cratesIO.features_.uuid."${deps."ofborg"."0.1.9"."uuid"}" deps)
     ];
 
@@ -225,7 +228,7 @@ rec {
   deps.aho_corasick."0.5.3" = {
     memchr = "0.1.11";
   };
-  deps.aho_corasick."0.6.9" = {
+  deps.aho_corasick."0.7.10" = {
     memchr = "2.3.3";
   };
   deps.amq_proto."0.1.0" = {
@@ -273,6 +276,9 @@ rec {
     time = "0.1.41";
     url = "1.7.2";
   };
+  deps.ansi_term."0.11.0" = {
+    winapi = "0.3.8";
+  };
   deps.antidote."1.0.0" = {};
   deps.arrayvec."0.5.1" = {};
   deps.async_std."1.5.0" = {
@@ -393,10 +399,6 @@ rec {
     log = "0.3.8";
     regex = "0.1.80";
   };
-  deps.env_logger."0.4.3" = {
-    log = "0.3.8";
-    regex = "0.2.11";
-  };
   deps.error_chain."0.10.0" = {
     backtrace = "0.3.13";
   };
@@ -527,6 +529,9 @@ rec {
     linked_hash_map = "0.4.2";
   };
   deps.maplit."1.0.2" = {};
+  deps.matchers."0.0.1" = {
+    regex_automata = "0.1.9";
+  };
   deps.matches."0.1.8" = {};
   deps.maybe_uninit."2.0.0" = {};
   deps.md5."0.3.8" = {};
@@ -629,13 +634,11 @@ rec {
     async_std = "1.5.0";
     chrono = "0.4.6";
     either = "1.5.0";
-    env_logger = "0.4.3";
     fs2 = "0.4.3";
     hubcaps = "0.3.16";
     hyper = "0.10.15";
     hyper_native_tls = "0.2.4";
     lapin = "1.0.0-beta3";
-    log = "0.3.8";
     lru_cache = "0.1.1";
     md5 = "0.3.8";
     nom = "4.1.1";
@@ -645,6 +648,8 @@ rec {
     serde_json = "1.0.52";
     sys_info = "0.5.6";
     tempfile = "2.2.0";
+    tracing = "0.1.13";
+    tracing_subscriber = "0.2.5";
     uuid = "0.4.0";
   };
   deps.ofborg_simple_build."0.1.0" = {
@@ -758,17 +763,18 @@ rec {
     thread_local = "0.2.7";
     utf8_ranges = "0.1.3";
   };
-  deps.regex."0.2.11" = {
-    aho_corasick = "0.6.9";
+  deps.regex."1.3.7" = {
+    aho_corasick = "0.7.10";
     memchr = "2.3.3";
-    regex_syntax = "0.5.6";
-    thread_local = "0.3.6";
-    utf8_ranges = "1.0.2";
+    regex_syntax = "0.6.17";
+    thread_local = "1.0.1";
+  };
+  deps.regex_automata."0.1.9" = {
+    byteorder = "1.2.7";
+    regex_syntax = "0.6.17";
   };
   deps.regex_syntax."0.3.9" = {};
-  deps.regex_syntax."0.5.6" = {
-    ucd_util = "0.1.3";
-  };
+  deps.regex_syntax."0.6.17" = {};
   deps.remove_dir_all."0.5.1" = {
     winapi = "0.3.8";
   };
@@ -821,6 +827,9 @@ rec {
     fake_simd = "0.1.2";
     opaque_debug = "0.2.3";
   };
+  deps.sharded_slab."0.0.9" = {
+    lazy_static = "1.4.0";
+  };
   deps.slab."0.4.2" = {};
   deps.smallvec."1.4.0" = {};
   deps.socket2."0.3.12" = {
@@ -870,7 +879,7 @@ rec {
   deps.thread_local."0.2.7" = {
     thread_id = "2.0.0";
   };
-  deps.thread_local."0.3.6" = {
+  deps.thread_local."1.0.1" = {
     lazy_static = "1.4.0";
   };
   deps.time."0.1.41" = {
@@ -878,11 +887,45 @@ rec {
     redox_syscall = "0.1.50";
     winapi = "0.3.8";
   };
+  deps.tracing."0.1.13" = {
+    cfg_if = "0.1.10";
+    tracing_attributes = "0.1.7";
+    tracing_core = "0.1.10";
+  };
+  deps.tracing_attributes."0.1.7" = {
+    quote = "1.0.3";
+    syn = "1.0.18";
+  };
+  deps.tracing_core."0.1.10" = {
+    lazy_static = "1.4.0";
+  };
+  deps.tracing_log."0.1.1" = {
+    lazy_static = "1.4.0";
+    log = "0.4.8";
+    tracing_core = "0.1.10";
+  };
+  deps.tracing_serde."0.1.1" = {
+    serde = "1.0.106";
+    tracing_core = "0.1.10";
+  };
+  deps.tracing_subscriber."0.2.5" = {
+    ansi_term = "0.11.0";
+    chrono = "0.4.6";
+    lazy_static = "1.4.0";
+    matchers = "0.0.1";
+    regex = "1.3.7";
+    serde = "1.0.106";
+    serde_json = "1.0.52";
+    sharded_slab = "0.0.9";
+    smallvec = "1.4.0";
+    tracing_core = "0.1.10";
+    tracing_log = "0.1.1";
+    tracing_serde = "0.1.1";
+  };
   deps.traitobject."0.1.0" = {};
   deps.typeable."0.1.2" = {};
   deps.typenum."1.12.0" = {};
   deps.ucd_trie."0.1.3" = {};
-  deps.ucd_util."0.1.3" = {};
   deps.unicase."1.4.2" = {
     version_check = "0.1.5";
   };
@@ -902,7 +945,6 @@ rec {
     percent_encoding = "2.1.0";
   };
   deps.utf8_ranges."0.1.3" = {};
-  deps.utf8_ranges."1.0.2" = {};
   deps.uuid."0.4.0" = {
     rand = "0.3.22";
   };
diff --git a/crates-io.list b/crates-io.list
index b0ed606..b41e341 100644
--- a/crates-io.list
+++ b/crates-io.list
@@ -1,11 +1,12 @@
 aho-corasick-0.5.3
-aho-corasick-0.6.9
+aho-corasick-0.7.10
 amq-proto-0.1.0
 amq-protocol-6.0.0-rc2
 amq-protocol-codegen-6.0.0-rc2
 amq-protocol-tcp-6.0.0-rc2
 amq-protocol-types-6.0.0-rc2
 amq-protocol-uri-6.0.0-rc2
+ansi_term-0.11.0
 antidote-1.0.0
 arrayvec-0.5.1
 async-std-1.5.0
@@ -43,7 +44,6 @@ doc-comment-0.3.3
 either-1.5.0
 enum_primitive-0.1.1
 env_logger-0.3.5
-env_logger-0.4.3
 error-chain-0.10.0
 fake-simd-0.1.2
 foreign-types-0.3.2
@@ -80,6 +80,7 @@ log-0.3.8
 log-0.4.8
 lru-cache-0.1.1
 maplit-1.0.2
+matchers-0.0.1
 matches-0.1.8
 maybe-uninit-2.0.0
 md5-0.3.8
@@ -132,9 +133,10 @@ rand_core-0.5.1
 rand_hc-0.2.0
 redox_syscall-0.1.50
 regex-0.1.80
-regex-0.2.11
+regex-1.3.7
+regex-automata-0.1.9
 regex-syntax-0.3.9
-regex-syntax-0.5.6
+regex-syntax-0.6.17
 remove_dir_all-0.5.1
 rustc-demangle-0.1.13
 ryu-1.0.4
@@ -150,6 +152,7 @@ serde-1.0.106
 serde_derive-1.0.106
 serde_json-1.0.52
 sha-1-0.8.2
+sharded-slab-0.0.9
 slab-0.4.2
 smallvec-1.4.0
 socket2-0.3.12
@@ -162,13 +165,18 @@ tempfile-2.2.0
 tempfile-3.1.0
 thread-id-2.0.0
 thread_local-0.2.7
-thread_local-0.3.6
+thread_local-1.0.1
 time-0.1.41
+tracing-0.1.13
+tracing-attributes-0.1.7
+tracing-core-0.1.10
+tracing-log-0.1.1
+tracing-serde-0.1.1
+tracing-subscriber-0.2.5
 traitobject-0.1.0
 typeable-0.1.2
 typenum-1.12.0
 ucd-trie-0.1.3
-ucd-util-0.1.3
 unicase-1.4.2
 unicode-bidi-0.3.4
 unicode-normalization-0.1.7
@@ -176,7 +184,6 @@ unicode-xid-0.2.0
 url-1.7.2
 url-2.1.1
 utf8-ranges-0.1.3
-utf8-ranges-1.0.2
 uuid-0.4.0
 vcpkg-0.2.8
 version_check-0.1.5
diff --git a/crates-io.nix b/crates-io.nix
index de820e0..aef52a8 100644
--- a/crates-io.nix
+++ b/crates-io.nix
@@ -29,26 +29,37 @@ rec {
 
 
 # end
-# aho-corasick-0.6.9
+# aho-corasick-0.7.10
 
-  crates.aho_corasick."0.6.9" = deps: { features?(features_.aho_corasick."0.6.9" deps {}) }: buildRustCrate {
+  crates.aho_corasick."0.7.10" = deps: { features?(features_.aho_corasick."0.7.10" deps {}) }: buildRustCrate {
     crateName = "aho-corasick";
-    version = "0.6.9";
-    description = "Fast multiple substring searching with finite state machines.";
+    version = "0.7.10";
+    description = "Fast multiple substring searching.";
     authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "1lj20py6bvw3y7m9n2nqh0mkshfl1kjfp72lfika9gpkrp2r204l";
+    sha256 = "0mmhg2dsz8b2iphdhdx24kzgr2ga9p879w30y1529kcsqv26mfwv";
     libName = "aho_corasick";
-    crateBin =
-      [{  name = "aho-corasick-dot";  path = "src/main.rs"; }];
     dependencies = mapFeatures features ([
-      (crates."memchr"."${deps."aho_corasick"."0.6.9"."memchr"}" deps)
+      (crates."memchr"."${deps."aho_corasick"."0.7.10"."memchr"}" deps)
     ]);
+    features = mkFeatures (features."aho_corasick"."0.7.10" or {});
   };
-  features_.aho_corasick."0.6.9" = deps: f: updateFeatures f (rec {
-    aho_corasick."0.6.9".default = (f.aho_corasick."0.6.9".default or true);
-    memchr."${deps.aho_corasick."0.6.9".memchr}".default = true;
+  features_.aho_corasick."0.7.10" = deps: f: updateFeatures f (rec {
+    aho_corasick = fold recursiveUpdate {} [
+      { "0.7.10"."std" =
+        (f.aho_corasick."0.7.10"."std" or false) ||
+        (f.aho_corasick."0.7.10".default or false) ||
+        (aho_corasick."0.7.10"."default" or false); }
+      { "0.7.10".default = (f.aho_corasick."0.7.10".default or true); }
+    ];
+    memchr = fold recursiveUpdate {} [
+      { "${deps.aho_corasick."0.7.10".memchr}"."use_std" =
+        (f.memchr."${deps.aho_corasick."0.7.10".memchr}"."use_std" or false) ||
+        (aho_corasick."0.7.10"."std" or false) ||
+        (f."aho_corasick"."0.7.10"."std" or false); }
+      { "${deps.aho_corasick."0.7.10".memchr}".default = (f.memchr."${deps.aho_corasick."0.7.10".memchr}".default or false); }
+    ];
   }) [
-    (features_.memchr."${deps."aho_corasick"."0.6.9"."memchr"}" deps)
+    (features_.memchr."${deps."aho_corasick"."0.7.10"."memchr"}" deps)
   ];
 
 
@@ -350,6 +361,32 @@ rec {
   ];
 
 
+# end
+# ansi_term-0.11.0
+
+  crates.ansi_term."0.11.0" = deps: { features?(features_.ansi_term."0.11.0" deps {}) }: buildRustCrate {
+    crateName = "ansi_term";
+    version = "0.11.0";
+    description = "Library for ANSI terminal colours and styles (bold, underline)";
+    authors = [ "ogham@bsago.me" "Ryan Scheel (Havvy) <ryan.havvy@gmail.com>" "Josh Triplett <josh@joshtriplett.org>" ];
+    sha256 = "08fk0p2xvkqpmz3zlrwnf6l8sj2vngw464rvzspzp31sbgxbwm4v";
+    dependencies = (if kernel == "windows" then mapFeatures features ([
+      (crates."winapi"."${deps."ansi_term"."0.11.0"."winapi"}" deps)
+    ]) else []);
+  };
+  features_.ansi_term."0.11.0" = deps: f: updateFeatures f (rec {
+    ansi_term."0.11.0".default = (f.ansi_term."0.11.0".default or true);
+    winapi = fold recursiveUpdate {} [
+      { "${deps.ansi_term."0.11.0".winapi}"."consoleapi" = true; }
+      { "${deps.ansi_term."0.11.0".winapi}"."errhandlingapi" = true; }
+      { "${deps.ansi_term."0.11.0".winapi}"."processenv" = true; }
+      { "${deps.ansi_term."0.11.0".winapi}".default = true; }
+    ];
+  }) [
+    (features_.winapi."${deps."ansi_term"."0.11.0"."winapi"}" deps)
+  ];
+
+
 # end
 # antidote-1.0.0
 
@@ -1533,37 +1570,6 @@ rec {
   ];
 
 
-# end
-# env_logger-0.4.3
-
-  crates.env_logger."0.4.3" = deps: { features?(features_.env_logger."0.4.3" deps {}) }: buildRustCrate {
-    crateName = "env_logger";
-    version = "0.4.3";
-    description = "A logging implementation for `log` which is configured via an environment\nvariable.\n";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0nrx04p4xa86d5kc7aq4fwvipbqji9cmgy449h47nc9f1chafhgg";
-    dependencies = mapFeatures features ([
-      (crates."log"."${deps."env_logger"."0.4.3"."log"}" deps)
-    ]
-      ++ (if features.env_logger."0.4.3".regex or false then [ (crates.regex."${deps."env_logger"."0.4.3".regex}" deps) ] else []));
-    features = mkFeatures (features."env_logger"."0.4.3" or {});
-  };
-  features_.env_logger."0.4.3" = deps: f: updateFeatures f (rec {
-    env_logger = fold recursiveUpdate {} [
-      { "0.4.3"."regex" =
-        (f.env_logger."0.4.3"."regex" or false) ||
-        (f.env_logger."0.4.3".default or false) ||
-        (env_logger."0.4.3"."default" or false); }
-      { "0.4.3".default = (f.env_logger."0.4.3".default or true); }
-    ];
-    log."${deps.env_logger."0.4.3".log}".default = true;
-    regex."${deps.env_logger."0.4.3".regex}".default = true;
-  }) [
-    (features_.log."${deps."env_logger"."0.4.3"."log"}" deps)
-    (features_.regex."${deps."env_logger"."0.4.3"."regex"}" deps)
-  ];
-
-
 # end
 # error-chain-0.10.0
 
@@ -2654,6 +2660,28 @@ rec {
   }) [];
 
 
+# end
+# matchers-0.0.1
+
+  crates.matchers."0.0.1" = deps: { features?(features_.matchers."0.0.1" deps {}) }: buildRustCrate {
+    crateName = "matchers";
+    version = "0.0.1";
+    description = "Regex matching on character and byte streams.\n";
+    authors = [ "Eliza Weisman <eliza@buoyant.io>" ];
+    edition = "2018";
+    sha256 = "1m734m00rv8fgfhvvdqidaz30ihyhnrd8xz115vvk8wx6b0ll9vf";
+    dependencies = mapFeatures features ([
+      (crates."regex_automata"."${deps."matchers"."0.0.1"."regex_automata"}" deps)
+    ]);
+  };
+  features_.matchers."0.0.1" = deps: f: updateFeatures f (rec {
+    matchers."0.0.1".default = (f.matchers."0.0.1".default or true);
+    regex_automata."${deps.matchers."0.0.1".regex_automata}".default = true;
+  }) [
+    (features_.regex_automata."${deps."matchers"."0.0.1"."regex_automata"}" deps)
+  ];
+
+
 # end
 # matches-0.1.8
 
@@ -4382,42 +4410,188 @@ rec {
 
 
 # end
-# regex-0.2.11
+# regex-1.3.7
 
-  crates.regex."0.2.11" = deps: { features?(features_.regex."0.2.11" deps {}) }: buildRustCrate {
+  crates.regex."1.3.7" = deps: { features?(features_.regex."1.3.7" deps {}) }: buildRustCrate {
     crateName = "regex";
-    version = "0.2.11";
+    version = "1.3.7";
     description = "An implementation of regular expressions for Rust. This implementation uses\nfinite automata and guarantees linear time matching on all inputs.\n";
     authors = [ "The Rust Project Developers" ];
-    sha256 = "0r50cymxdqp0fv1dxd22mjr6y32q450nwacd279p9s7lh0cafijj";
+    sha256 = "0j3r3g0g1idd5blgjnwf1ysrpslmg4xbli2nvxydkwwcmghap7si";
     dependencies = mapFeatures features ([
-      (crates."aho_corasick"."${deps."regex"."0.2.11"."aho_corasick"}" deps)
-      (crates."memchr"."${deps."regex"."0.2.11"."memchr"}" deps)
-      (crates."regex_syntax"."${deps."regex"."0.2.11"."regex_syntax"}" deps)
-      (crates."thread_local"."${deps."regex"."0.2.11"."thread_local"}" deps)
-      (crates."utf8_ranges"."${deps."regex"."0.2.11"."utf8_ranges"}" deps)
-    ]);
-    features = mkFeatures (features."regex"."0.2.11" or {});
+      (crates."regex_syntax"."${deps."regex"."1.3.7"."regex_syntax"}" deps)
+    ]
+      ++ (if features.regex."1.3.7".aho-corasick or false then [ (crates.aho_corasick."${deps."regex"."1.3.7".aho_corasick}" deps) ] else [])
+      ++ (if features.regex."1.3.7".memchr or false then [ (crates.memchr."${deps."regex"."1.3.7".memchr}" deps) ] else [])
+      ++ (if features.regex."1.3.7".thread_local or false then [ (crates.thread_local."${deps."regex"."1.3.7".thread_local}" deps) ] else []));
+    features = mkFeatures (features."regex"."1.3.7" or {});
   };
-  features_.regex."0.2.11" = deps: f: updateFeatures f (rec {
-    aho_corasick."${deps.regex."0.2.11".aho_corasick}".default = true;
-    memchr."${deps.regex."0.2.11".memchr}".default = true;
+  features_.regex."1.3.7" = deps: f: updateFeatures f (rec {
+    aho_corasick."${deps.regex."1.3.7".aho_corasick}".default = true;
+    memchr."${deps.regex."1.3.7".memchr}".default = true;
     regex = fold recursiveUpdate {} [
-      { "0.2.11"."pattern" =
-        (f.regex."0.2.11"."pattern" or false) ||
-        (f.regex."0.2.11".unstable or false) ||
-        (regex."0.2.11"."unstable" or false); }
-      { "0.2.11".default = (f.regex."0.2.11".default or true); }
+      { "1.3.7"."aho-corasick" =
+        (f.regex."1.3.7"."aho-corasick" or false) ||
+        (f.regex."1.3.7".perf-literal or false) ||
+        (regex."1.3.7"."perf-literal" or false); }
+      { "1.3.7"."memchr" =
+        (f.regex."1.3.7"."memchr" or false) ||
+        (f.regex."1.3.7".perf-literal or false) ||
+        (regex."1.3.7"."perf-literal" or false); }
+      { "1.3.7"."pattern" =
+        (f.regex."1.3.7"."pattern" or false) ||
+        (f.regex."1.3.7".unstable or false) ||
+        (regex."1.3.7"."unstable" or false); }
+      { "1.3.7"."perf" =
+        (f.regex."1.3.7"."perf" or false) ||
+        (f.regex."1.3.7".default or false) ||
+        (regex."1.3.7"."default" or false); }
+      { "1.3.7"."perf-cache" =
+        (f.regex."1.3.7"."perf-cache" or false) ||
+        (f.regex."1.3.7".perf or false) ||
+        (regex."1.3.7"."perf" or false); }
+      { "1.3.7"."perf-dfa" =
+        (f.regex."1.3.7"."perf-dfa" or false) ||
+        (f.regex."1.3.7".perf or false) ||
+        (regex."1.3.7"."perf" or false); }
+      { "1.3.7"."perf-inline" =
+        (f.regex."1.3.7"."perf-inline" or false) ||
+        (f.regex."1.3.7".perf or false) ||
+        (regex."1.3.7"."perf" or false); }
+      { "1.3.7"."perf-literal" =
+        (f.regex."1.3.7"."perf-literal" or false) ||
+        (f.regex."1.3.7".perf or false) ||
+        (regex."1.3.7"."perf" or false); }
+      { "1.3.7"."std" =
+        (f.regex."1.3.7"."std" or false) ||
+        (f.regex."1.3.7".default or false) ||
+        (regex."1.3.7"."default" or false) ||
+        (f.regex."1.3.7".use_std or false) ||
+        (regex."1.3.7"."use_std" or false); }
+      { "1.3.7"."thread_local" =
+        (f.regex."1.3.7"."thread_local" or false) ||
+        (f.regex."1.3.7".perf-cache or false) ||
+        (regex."1.3.7"."perf-cache" or false); }
+      { "1.3.7"."unicode" =
+        (f.regex."1.3.7"."unicode" or false) ||
+        (f.regex."1.3.7".default or false) ||
+        (regex."1.3.7"."default" or false); }
+      { "1.3.7"."unicode-age" =
+        (f.regex."1.3.7"."unicode-age" or false) ||
+        (f.regex."1.3.7".unicode or false) ||
+        (regex."1.3.7"."unicode" or false); }
+      { "1.3.7"."unicode-bool" =
+        (f.regex."1.3.7"."unicode-bool" or false) ||
+        (f.regex."1.3.7".unicode or false) ||
+        (regex."1.3.7"."unicode" or false); }
+      { "1.3.7"."unicode-case" =
+        (f.regex."1.3.7"."unicode-case" or false) ||
+        (f.regex."1.3.7".unicode or false) ||
+        (regex."1.3.7"."unicode" or false); }
+      { "1.3.7"."unicode-gencat" =
+        (f.regex."1.3.7"."unicode-gencat" or false) ||
+        (f.regex."1.3.7".unicode or false) ||
+        (regex."1.3.7"."unicode" or false); }
+      { "1.3.7"."unicode-perl" =
+        (f.regex."1.3.7"."unicode-perl" or false) ||
+        (f.regex."1.3.7".unicode or false) ||
+        (regex."1.3.7"."unicode" or false); }
+      { "1.3.7"."unicode-script" =
+        (f.regex."1.3.7"."unicode-script" or false) ||
+        (f.regex."1.3.7".unicode or false) ||
+        (regex."1.3.7"."unicode" or false); }
+      { "1.3.7"."unicode-segment" =
+        (f.regex."1.3.7"."unicode-segment" or false) ||
+        (f.regex."1.3.7".unicode or false) ||
+        (regex."1.3.7"."unicode" or false); }
+      { "1.3.7".default = (f.regex."1.3.7".default or true); }
     ];
-    regex_syntax."${deps.regex."0.2.11".regex_syntax}".default = true;
-    thread_local."${deps.regex."0.2.11".thread_local}".default = true;
-    utf8_ranges."${deps.regex."0.2.11".utf8_ranges}".default = true;
+    regex_syntax = fold recursiveUpdate {} [
+      { "${deps.regex."1.3.7".regex_syntax}"."default" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."default" or false) ||
+        (regex."1.3.7"."default" or false) ||
+        (f."regex"."1.3.7"."default" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode" or false) ||
+        (regex."1.3.7"."unicode" or false) ||
+        (f."regex"."1.3.7"."unicode" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode-age" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode-age" or false) ||
+        (regex."1.3.7"."unicode-age" or false) ||
+        (f."regex"."1.3.7"."unicode-age" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode-bool" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode-bool" or false) ||
+        (regex."1.3.7"."unicode-bool" or false) ||
+        (f."regex"."1.3.7"."unicode-bool" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode-case" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode-case" or false) ||
+        (regex."1.3.7"."unicode-case" or false) ||
+        (f."regex"."1.3.7"."unicode-case" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode-gencat" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode-gencat" or false) ||
+        (regex."1.3.7"."unicode-gencat" or false) ||
+        (f."regex"."1.3.7"."unicode-gencat" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode-perl" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode-perl" or false) ||
+        (regex."1.3.7"."unicode-perl" or false) ||
+        (f."regex"."1.3.7"."unicode-perl" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode-script" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode-script" or false) ||
+        (regex."1.3.7"."unicode-script" or false) ||
+        (f."regex"."1.3.7"."unicode-script" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}"."unicode-segment" =
+        (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}"."unicode-segment" or false) ||
+        (regex."1.3.7"."unicode-segment" or false) ||
+        (f."regex"."1.3.7"."unicode-segment" or false); }
+      { "${deps.regex."1.3.7".regex_syntax}".default = (f.regex_syntax."${deps.regex."1.3.7".regex_syntax}".default or false); }
+    ];
+    thread_local."${deps.regex."1.3.7".thread_local}".default = true;
   }) [
-    (features_.aho_corasick."${deps."regex"."0.2.11"."aho_corasick"}" deps)
-    (features_.memchr."${deps."regex"."0.2.11"."memchr"}" deps)
-    (features_.regex_syntax."${deps."regex"."0.2.11"."regex_syntax"}" deps)
-    (features_.thread_local."${deps."regex"."0.2.11"."thread_local"}" deps)
-    (features_.utf8_ranges."${deps."regex"."0.2.11"."utf8_ranges"}" deps)
+    (features_.aho_corasick."${deps."regex"."1.3.7"."aho_corasick"}" deps)
+    (features_.memchr."${deps."regex"."1.3.7"."memchr"}" deps)
+    (features_.regex_syntax."${deps."regex"."1.3.7"."regex_syntax"}" deps)
+    (features_.thread_local."${deps."regex"."1.3.7"."thread_local"}" deps)
+  ];
+
+
+# end
+# regex-automata-0.1.9
+
+  crates.regex_automata."0.1.9" = deps: { features?(features_.regex_automata."0.1.9" deps {}) }: buildRustCrate {
+    crateName = "regex-automata";
+    version = "0.1.9";
+    description = "Automata construction and matching using regular expressions.";
+    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
+    sha256 = "12rllq44ynv1051kj655qi0jmcdlc47qd5mcxkg8ir0w13gx0m2g";
+    dependencies = mapFeatures features ([
+      (crates."byteorder"."${deps."regex_automata"."0.1.9"."byteorder"}" deps)
+    ]
+      ++ (if features.regex_automata."0.1.9".regex-syntax or false then [ (crates.regex_syntax."${deps."regex_automata"."0.1.9".regex_syntax}" deps) ] else []));
+    features = mkFeatures (features."regex_automata"."0.1.9" or {});
+  };
+  features_.regex_automata."0.1.9" = deps: f: updateFeatures f (rec {
+    byteorder."${deps.regex_automata."0.1.9".byteorder}".default = (f.byteorder."${deps.regex_automata."0.1.9".byteorder}".default or false);
+    regex_automata = fold recursiveUpdate {} [
+      { "0.1.9"."fst" =
+        (f.regex_automata."0.1.9"."fst" or false) ||
+        (f.regex_automata."0.1.9".transducer or false) ||
+        (regex_automata."0.1.9"."transducer" or false); }
+      { "0.1.9"."regex-syntax" =
+        (f.regex_automata."0.1.9"."regex-syntax" or false) ||
+        (f.regex_automata."0.1.9".std or false) ||
+        (regex_automata."0.1.9"."std" or false); }
+      { "0.1.9"."std" =
+        (f.regex_automata."0.1.9"."std" or false) ||
+        (f.regex_automata."0.1.9".default or false) ||
+        (regex_automata."0.1.9"."default" or false) ||
+        (f.regex_automata."0.1.9".transducer or false) ||
+        (regex_automata."0.1.9"."transducer" or false); }
+      { "0.1.9".default = (f.regex_automata."0.1.9".default or true); }
+    ];
+    regex_syntax."${deps.regex_automata."0.1.9".regex_syntax}".default = true;
+  }) [
+    (features_.byteorder."${deps."regex_automata"."0.1.9"."byteorder"}" deps)
+    (features_.regex_syntax."${deps."regex_automata"."0.1.9"."regex_syntax"}" deps)
   ];
 
 
@@ -4437,24 +4611,53 @@ rec {
 
 
 # end
-# regex-syntax-0.5.6
+# regex-syntax-0.6.17
 
-  crates.regex_syntax."0.5.6" = deps: { features?(features_.regex_syntax."0.5.6" deps {}) }: buildRustCrate {
+  crates.regex_syntax."0.6.17" = deps: { features?(features_.regex_syntax."0.6.17" deps {}) }: buildRustCrate {
     crateName = "regex-syntax";
-    version = "0.5.6";
+    version = "0.6.17";
     description = "A regular expression parser.";
     authors = [ "The Rust Project Developers" ];
-    sha256 = "10vf3r34bgjnbrnqd5aszn35bjvm8insw498l1vjy8zx5yms3427";
-    dependencies = mapFeatures features ([
-      (crates."ucd_util"."${deps."regex_syntax"."0.5.6"."ucd_util"}" deps)
-    ]);
+    sha256 = "0jvwz9bfycw52mf0djnmvwzx6v3jcvcwaz0zf9ikajrl00ahfx3a";
+    features = mkFeatures (features."regex_syntax"."0.6.17" or {});
   };
-  features_.regex_syntax."0.5.6" = deps: f: updateFeatures f (rec {
-    regex_syntax."0.5.6".default = (f.regex_syntax."0.5.6".default or true);
-    ucd_util."${deps.regex_syntax."0.5.6".ucd_util}".default = true;
-  }) [
-    (features_.ucd_util."${deps."regex_syntax"."0.5.6"."ucd_util"}" deps)
-  ];
+  features_.regex_syntax."0.6.17" = deps: f: updateFeatures f (rec {
+    regex_syntax = fold recursiveUpdate {} [
+      { "0.6.17"."unicode" =
+        (f.regex_syntax."0.6.17"."unicode" or false) ||
+        (f.regex_syntax."0.6.17".default or false) ||
+        (regex_syntax."0.6.17"."default" or false); }
+      { "0.6.17"."unicode-age" =
+        (f.regex_syntax."0.6.17"."unicode-age" or false) ||
+        (f.regex_syntax."0.6.17".unicode or false) ||
+        (regex_syntax."0.6.17"."unicode" or false); }
+      { "0.6.17"."unicode-bool" =
+        (f.regex_syntax."0.6.17"."unicode-bool" or false) ||
+        (f.regex_syntax."0.6.17".unicode or false) ||
+        (regex_syntax."0.6.17"."unicode" or false); }
+      { "0.6.17"."unicode-case" =
+        (f.regex_syntax."0.6.17"."unicode-case" or false) ||
+        (f.regex_syntax."0.6.17".unicode or false) ||
+        (regex_syntax."0.6.17"."unicode" or false); }
+      { "0.6.17"."unicode-gencat" =
+        (f.regex_syntax."0.6.17"."unicode-gencat" or false) ||
+        (f.regex_syntax."0.6.17".unicode or false) ||
+        (regex_syntax."0.6.17"."unicode" or false); }
+      { "0.6.17"."unicode-perl" =
+        (f.regex_syntax."0.6.17"."unicode-perl" or false) ||
+        (f.regex_syntax."0.6.17".unicode or false) ||
+        (regex_syntax."0.6.17"."unicode" or false); }
+      { "0.6.17"."unicode-script" =
+        (f.regex_syntax."0.6.17"."unicode-script" or false) ||
+        (f.regex_syntax."0.6.17".unicode or false) ||
+        (regex_syntax."0.6.17"."unicode" or false); }
+      { "0.6.17"."unicode-segment" =
+        (f.regex_syntax."0.6.17"."unicode-segment" or false) ||
+        (f.regex_syntax."0.6.17".unicode or false) ||
+        (regex_syntax."0.6.17"."unicode" or false); }
+      { "0.6.17".default = (f.regex_syntax."0.6.17".default or true); }
+    ];
+  }) [];
 
 
 # end
@@ -5023,6 +5226,28 @@ rec {
   ];
 
 
+# end
+# sharded-slab-0.0.9
+
+  crates.sharded_slab."0.0.9" = deps: { features?(features_.sharded_slab."0.0.9" deps {}) }: buildRustCrate {
+    crateName = "sharded-slab";
+    version = "0.0.9";
+    description = "A lock-free concurrent slab.\n";
+    authors = [ "Eliza Weisman <eliza@buoyant.io>" ];
+    edition = "2018";
+    sha256 = "1xcbb732gv1k0djh1sjf84qw52xnawi2605pnpnfrd8vy4r8inwf";
+    dependencies = mapFeatures features ([
+      (crates."lazy_static"."${deps."sharded_slab"."0.0.9"."lazy_static"}" deps)
+    ]);
+  };
+  features_.sharded_slab."0.0.9" = deps: f: updateFeatures f (rec {
+    lazy_static."${deps.sharded_slab."0.0.9".lazy_static}".default = true;
+    sharded_slab."0.0.9".default = (f.sharded_slab."0.0.9".default or true);
+  }) [
+    (features_.lazy_static."${deps."sharded_slab"."0.0.9"."lazy_static"}" deps)
+  ];
+
+
 # end
 # slab-0.4.2
 
@@ -5421,23 +5646,23 @@ rec {
 
 
 # end
-# thread_local-0.3.6
+# thread_local-1.0.1
 
-  crates.thread_local."0.3.6" = deps: { features?(features_.thread_local."0.3.6" deps {}) }: buildRustCrate {
+  crates.thread_local."1.0.1" = deps: { features?(features_.thread_local."1.0.1" deps {}) }: buildRustCrate {
     crateName = "thread_local";
-    version = "0.3.6";
+    version = "1.0.1";
     description = "Per-object thread-local storage";
     authors = [ "Amanieu d'Antras <amanieu@gmail.com>" ];
-    sha256 = "02rksdwjmz2pw9bmgbb4c0bgkbq5z6nvg510sq1s6y2j1gam0c7i";
+    sha256 = "0vs440x0nwpsw30ks6b8f70178y0gl7zhrqydhjykrhn56bj57h7";
     dependencies = mapFeatures features ([
-      (crates."lazy_static"."${deps."thread_local"."0.3.6"."lazy_static"}" deps)
+      (crates."lazy_static"."${deps."thread_local"."1.0.1"."lazy_static"}" deps)
     ]);
   };
-  features_.thread_local."0.3.6" = deps: f: updateFeatures f (rec {
-    lazy_static."${deps.thread_local."0.3.6".lazy_static}".default = true;
-    thread_local."0.3.6".default = (f.thread_local."0.3.6".default or true);
+  features_.thread_local."1.0.1" = deps: f: updateFeatures f (rec {
+    lazy_static."${deps.thread_local."1.0.1".lazy_static}".default = true;
+    thread_local."1.0.1".default = (f.thread_local."1.0.1".default or true);
   }) [
-    (features_.lazy_static."${deps."thread_local"."0.3.6"."lazy_static"}" deps)
+    (features_.lazy_static."${deps."thread_local"."1.0.1"."lazy_static"}" deps)
   ];
 
 
@@ -5481,6 +5706,325 @@ rec {
   ];
 
 
+# end
+# tracing-0.1.13
+
+  crates.tracing."0.1.13" = deps: { features?(features_.tracing."0.1.13" deps {}) }: buildRustCrate {
+    crateName = "tracing";
+    version = "0.1.13";
+    description = "Application-level tracing for Rust.\n";
+    authors = [ "Eliza Weisman <eliza@buoyant.io>" "Tokio Contributors <team@tokio.rs>" ];
+    edition = "2018";
+    sha256 = "0rb6mvfp9pkzrrjxc5mgxac4hgn255fk5i3pq6915xsf1qpl7n6j";
+    dependencies = mapFeatures features ([
+      (crates."cfg_if"."${deps."tracing"."0.1.13"."cfg_if"}" deps)
+      (crates."tracing_core"."${deps."tracing"."0.1.13"."tracing_core"}" deps)
+    ]
+      ++ (if features.tracing."0.1.13".tracing-attributes or false then [ (crates.tracing_attributes."${deps."tracing"."0.1.13".tracing_attributes}" deps) ] else []));
+    features = mkFeatures (features."tracing"."0.1.13" or {});
+  };
+  features_.tracing."0.1.13" = deps: f: updateFeatures f (rec {
+    cfg_if."${deps.tracing."0.1.13".cfg_if}".default = true;
+    tracing = fold recursiveUpdate {} [
+      { "0.1.13"."attributes" =
+        (f.tracing."0.1.13"."attributes" or false) ||
+        (f.tracing."0.1.13".default or false) ||
+        (tracing."0.1.13"."default" or false); }
+      { "0.1.13"."log" =
+        (f.tracing."0.1.13"."log" or false) ||
+        (f.tracing."0.1.13".log-always or false) ||
+        (tracing."0.1.13"."log-always" or false); }
+      { "0.1.13"."std" =
+        (f.tracing."0.1.13"."std" or false) ||
+        (f.tracing."0.1.13".default or false) ||
+        (tracing."0.1.13"."default" or false); }
+      { "0.1.13"."tracing-attributes" =
+        (f.tracing."0.1.13"."tracing-attributes" or false) ||
+        (f.tracing."0.1.13".attributes or false) ||
+        (tracing."0.1.13"."attributes" or false); }
+      { "0.1.13".default = (f.tracing."0.1.13".default or true); }
+    ];
+    tracing_attributes."${deps.tracing."0.1.13".tracing_attributes}".default = true;
+    tracing_core = fold recursiveUpdate {} [
+      { "${deps.tracing."0.1.13".tracing_core}"."std" =
+        (f.tracing_core."${deps.tracing."0.1.13".tracing_core}"."std" or false) ||
+        (tracing."0.1.13"."std" or false) ||
+        (f."tracing"."0.1.13"."std" or false); }
+      { "${deps.tracing."0.1.13".tracing_core}".default = (f.tracing_core."${deps.tracing."0.1.13".tracing_core}".default or false); }
+    ];
+  }) [
+    (features_.cfg_if."${deps."tracing"."0.1.13"."cfg_if"}" deps)
+    (features_.tracing_attributes."${deps."tracing"."0.1.13"."tracing_attributes"}" deps)
+    (features_.tracing_core."${deps."tracing"."0.1.13"."tracing_core"}" deps)
+  ];
+
+
+# end
+# tracing-attributes-0.1.7
+
+  crates.tracing_attributes."0.1.7" = deps: { features?(features_.tracing_attributes."0.1.7" deps {}) }: buildRustCrate {
+    crateName = "tracing-attributes";
+    version = "0.1.7";
+    description = "Procedural macro attributes for automatically instrumenting functions.\n";
+    authors = [ "Tokio Contributors <team@tokio.rs>" "Eliza Weisman <eliza@buoyant.io>" "David Barsky <dbarsky@amazon.com>" ];
+    edition = "2018";
+    sha256 = "1lfsmzhq5sqkxzkp0jxvwfmiyl33vqg3338dx7l4wqsz8qjfbnia";
+    procMacro = true;
+    dependencies = mapFeatures features ([
+      (crates."quote"."${deps."tracing_attributes"."0.1.7"."quote"}" deps)
+      (crates."syn"."${deps."tracing_attributes"."0.1.7"."syn"}" deps)
+    ]);
+    features = mkFeatures (features."tracing_attributes"."0.1.7" or {});
+  };
+  features_.tracing_attributes."0.1.7" = deps: f: updateFeatures f (rec {
+    quote."${deps.tracing_attributes."0.1.7".quote}".default = true;
+    syn = fold recursiveUpdate {} [
+      { "${deps.tracing_attributes."0.1.7".syn}"."extra-traits" = true; }
+      { "${deps.tracing_attributes."0.1.7".syn}"."full" = true; }
+      { "${deps.tracing_attributes."0.1.7".syn}".default = true; }
+    ];
+    tracing_attributes."0.1.7".default = (f.tracing_attributes."0.1.7".default or true);
+  }) [
+    (features_.quote."${deps."tracing_attributes"."0.1.7"."quote"}" deps)
+    (features_.syn."${deps."tracing_attributes"."0.1.7"."syn"}" deps)
+  ];
+
+
+# end
+# tracing-core-0.1.10
+
+  crates.tracing_core."0.1.10" = deps: { features?(features_.tracing_core."0.1.10" deps {}) }: buildRustCrate {
+    crateName = "tracing-core";
+    version = "0.1.10";
+    description = "Core primitives for application-level tracing.\n";
+    authors = [ "Tokio Contributors <team@tokio.rs>" ];
+    edition = "2018";
+    sha256 = "0ilmnlfirylknnrwxfi38hs2000d8c60ax5zgd7ydc0bxkb8hisn";
+    dependencies = mapFeatures features ([
+    ]
+      ++ (if features.tracing_core."0.1.10".lazy_static or false then [ (crates.lazy_static."${deps."tracing_core"."0.1.10".lazy_static}" deps) ] else []));
+    features = mkFeatures (features."tracing_core"."0.1.10" or {});
+  };
+  features_.tracing_core."0.1.10" = deps: f: updateFeatures f (rec {
+    lazy_static."${deps.tracing_core."0.1.10".lazy_static}".default = true;
+    tracing_core = fold recursiveUpdate {} [
+      { "0.1.10"."lazy_static" =
+        (f.tracing_core."0.1.10"."lazy_static" or false) ||
+        (f.tracing_core."0.1.10".std or false) ||
+        (tracing_core."0.1.10"."std" or false); }
+      { "0.1.10"."std" =
+        (f.tracing_core."0.1.10"."std" or false) ||
+        (f.tracing_core."0.1.10".default or false) ||
+        (tracing_core."0.1.10"."default" or false); }
+      { "0.1.10".default = (f.tracing_core."0.1.10".default or true); }
+    ];
+  }) [
+    (features_.lazy_static."${deps."tracing_core"."0.1.10"."lazy_static"}" deps)
+  ];
+
+
+# end
+# tracing-log-0.1.1
+
+  crates.tracing_log."0.1.1" = deps: { features?(features_.tracing_log."0.1.1" deps {}) }: buildRustCrate {
+    crateName = "tracing-log";
+    version = "0.1.1";
+    description = "Provides compatibility between `tracing` and the `log` crate.\n";
+    authors = [ "Tokio Contributors <team@tokio.rs>" ];
+    edition = "2018";
+    sha256 = "1l63jav4zdxakk4gq4lmflrwvjf97074cnrcj23avjym635ngs98";
+    dependencies = mapFeatures features ([
+      (crates."lazy_static"."${deps."tracing_log"."0.1.1"."lazy_static"}" deps)
+      (crates."log"."${deps."tracing_log"."0.1.1"."log"}" deps)
+      (crates."tracing_core"."${deps."tracing_log"."0.1.1"."tracing_core"}" deps)
+    ]);
+    features = mkFeatures (features."tracing_log"."0.1.1" or {});
+  };
+  features_.tracing_log."0.1.1" = deps: f: updateFeatures f (rec {
+    lazy_static."${deps.tracing_log."0.1.1".lazy_static}".default = true;
+    log = fold recursiveUpdate {} [
+      { "${deps.tracing_log."0.1.1".log}"."std" =
+        (f.log."${deps.tracing_log."0.1.1".log}"."std" or false) ||
+        (tracing_log."0.1.1"."std" or false) ||
+        (f."tracing_log"."0.1.1"."std" or false); }
+      { "${deps.tracing_log."0.1.1".log}".default = true; }
+    ];
+    tracing_core."${deps.tracing_log."0.1.1".tracing_core}".default = true;
+    tracing_log = fold recursiveUpdate {} [
+      { "0.1.1"."log-tracer" =
+        (f.tracing_log."0.1.1"."log-tracer" or false) ||
+        (f.tracing_log."0.1.1".default or false) ||
+        (tracing_log."0.1.1"."default" or false); }
+      { "0.1.1"."std" =
+        (f.tracing_log."0.1.1"."std" or false) ||
+        (f.tracing_log."0.1.1".default or false) ||
+        (tracing_log."0.1.1"."default" or false); }
+      { "0.1.1"."trace-logger" =
+        (f.tracing_log."0.1.1"."trace-logger" or false) ||
+        (f.tracing_log."0.1.1".default or false) ||
+        (tracing_log."0.1.1"."default" or false); }
+      { "0.1.1".default = (f.tracing_log."0.1.1".default or true); }
+    ];
+  }) [
+    (features_.lazy_static."${deps."tracing_log"."0.1.1"."lazy_static"}" deps)
+    (features_.log."${deps."tracing_log"."0.1.1"."log"}" deps)
+    (features_.tracing_core."${deps."tracing_log"."0.1.1"."tracing_core"}" deps)
+  ];
+
+
+# end
+# tracing-serde-0.1.1
+
+  crates.tracing_serde."0.1.1" = deps: { features?(features_.tracing_serde."0.1.1" deps {}) }: buildRustCrate {
+    crateName = "tracing-serde";
+    version = "0.1.1";
+    description = "A compatibility layer for serializing trace data with `serde`\n";
+    authors = [ "Tokio Contributors <team@tokio.rs>" ];
+    edition = "2018";
+    sha256 = "0sqhdbv20mla7z2m2sirmxgyg8jhy3dmm8rz961w5pianjlzb012";
+    dependencies = mapFeatures features ([
+      (crates."serde"."${deps."tracing_serde"."0.1.1"."serde"}" deps)
+      (crates."tracing_core"."${deps."tracing_serde"."0.1.1"."tracing_core"}" deps)
+    ]);
+  };
+  features_.tracing_serde."0.1.1" = deps: f: updateFeatures f (rec {
+    serde."${deps.tracing_serde."0.1.1".serde}".default = true;
+    tracing_core."${deps.tracing_serde."0.1.1".tracing_core}".default = true;
+    tracing_serde."0.1.1".default = (f.tracing_serde."0.1.1".default or true);
+  }) [
+    (features_.serde."${deps."tracing_serde"."0.1.1"."serde"}" deps)
+    (features_.tracing_core."${deps."tracing_serde"."0.1.1"."tracing_core"}" deps)
+  ];
+
+
+# end
+# tracing-subscriber-0.2.5
+
+  crates.tracing_subscriber."0.2.5" = deps: { features?(features_.tracing_subscriber."0.2.5" deps {}) }: buildRustCrate {
+    crateName = "tracing-subscriber";
+    version = "0.2.5";
+    description = "Utilities for implementing and composing `tracing` subscribers.\n";
+    authors = [ "Eliza Weisman <eliza@buoyant.io>" "David Barsky <me@davidbarsky.com>" "Tokio Contributors <team@tokio.rs>" ];
+    edition = "2018";
+    sha256 = "1glxasxnvnmg2ggvn8w9f4pk2pdlpdvjq610v412ni2nx83sjcps";
+    dependencies = mapFeatures features ([
+      (crates."tracing_core"."${deps."tracing_subscriber"."0.2.5"."tracing_core"}" deps)
+    ]
+      ++ (if features.tracing_subscriber."0.2.5".ansi_term or false then [ (crates.ansi_term."${deps."tracing_subscriber"."0.2.5".ansi_term}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".chrono or false then [ (crates.chrono."${deps."tracing_subscriber"."0.2.5".chrono}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".lazy_static or false then [ (crates.lazy_static."${deps."tracing_subscriber"."0.2.5".lazy_static}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".matchers or false then [ (crates.matchers."${deps."tracing_subscriber"."0.2.5".matchers}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".regex or false then [ (crates.regex."${deps."tracing_subscriber"."0.2.5".regex}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".serde or false then [ (crates.serde."${deps."tracing_subscriber"."0.2.5".serde}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".serde_json or false then [ (crates.serde_json."${deps."tracing_subscriber"."0.2.5".serde_json}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".sharded-slab or false then [ (crates.sharded_slab."${deps."tracing_subscriber"."0.2.5".sharded_slab}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".smallvec or false then [ (crates.smallvec."${deps."tracing_subscriber"."0.2.5".smallvec}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".tracing-log or false then [ (crates.tracing_log."${deps."tracing_subscriber"."0.2.5".tracing_log}" deps) ] else [])
+      ++ (if features.tracing_subscriber."0.2.5".tracing-serde or false then [ (crates.tracing_serde."${deps."tracing_subscriber"."0.2.5".tracing_serde}" deps) ] else []));
+    features = mkFeatures (features."tracing_subscriber"."0.2.5" or {});
+  };
+  features_.tracing_subscriber."0.2.5" = deps: f: updateFeatures f (rec {
+    ansi_term."${deps.tracing_subscriber."0.2.5".ansi_term}".default = true;
+    chrono."${deps.tracing_subscriber."0.2.5".chrono}".default = true;
+    lazy_static."${deps.tracing_subscriber."0.2.5".lazy_static}".default = true;
+    matchers."${deps.tracing_subscriber."0.2.5".matchers}".default = true;
+    regex."${deps.tracing_subscriber."0.2.5".regex}".default = true;
+    serde."${deps.tracing_subscriber."0.2.5".serde}".default = true;
+    serde_json."${deps.tracing_subscriber."0.2.5".serde_json}".default = true;
+    sharded_slab."${deps.tracing_subscriber."0.2.5".sharded_slab}".default = true;
+    smallvec."${deps.tracing_subscriber."0.2.5".smallvec}".default = true;
+    tracing_core."${deps.tracing_subscriber."0.2.5".tracing_core}".default = true;
+    tracing_log = fold recursiveUpdate {} [
+      { "${deps.tracing_subscriber."0.2.5".tracing_log}"."log-tracer" = true; }
+      { "${deps.tracing_subscriber."0.2.5".tracing_log}"."std" = true; }
+      { "${deps.tracing_subscriber."0.2.5".tracing_log}".default = (f.tracing_log."${deps.tracing_subscriber."0.2.5".tracing_log}".default or false); }
+    ];
+    tracing_serde."${deps.tracing_subscriber."0.2.5".tracing_serde}".default = true;
+    tracing_subscriber = fold recursiveUpdate {} [
+      { "0.2.5"."ansi" =
+        (f.tracing_subscriber."0.2.5"."ansi" or false) ||
+        (f.tracing_subscriber."0.2.5".default or false) ||
+        (tracing_subscriber."0.2.5"."default" or false); }
+      { "0.2.5"."ansi_term" =
+        (f.tracing_subscriber."0.2.5"."ansi_term" or false) ||
+        (f.tracing_subscriber."0.2.5".ansi or false) ||
+        (tracing_subscriber."0.2.5"."ansi" or false); }
+      { "0.2.5"."chrono" =
+        (f.tracing_subscriber."0.2.5"."chrono" or false) ||
+        (f.tracing_subscriber."0.2.5".default or false) ||
+        (tracing_subscriber."0.2.5"."default" or false); }
+      { "0.2.5"."env-filter" =
+        (f.tracing_subscriber."0.2.5"."env-filter" or false) ||
+        (f.tracing_subscriber."0.2.5".default or false) ||
+        (tracing_subscriber."0.2.5"."default" or false); }
+      { "0.2.5"."fmt" =
+        (f.tracing_subscriber."0.2.5"."fmt" or false) ||
+        (f.tracing_subscriber."0.2.5".ansi or false) ||
+        (tracing_subscriber."0.2.5"."ansi" or false) ||
+        (f.tracing_subscriber."0.2.5".default or false) ||
+        (tracing_subscriber."0.2.5"."default" or false); }
+      { "0.2.5"."json" =
+        (f.tracing_subscriber."0.2.5"."json" or false) ||
+        (f.tracing_subscriber."0.2.5".default or false) ||
+        (tracing_subscriber."0.2.5"."default" or false); }
+      { "0.2.5"."lazy_static" =
+        (f.tracing_subscriber."0.2.5"."lazy_static" or false) ||
+        (f.tracing_subscriber."0.2.5".env-filter or false) ||
+        (tracing_subscriber."0.2.5"."env-filter" or false); }
+      { "0.2.5"."matchers" =
+        (f.tracing_subscriber."0.2.5"."matchers" or false) ||
+        (f.tracing_subscriber."0.2.5".env-filter or false) ||
+        (tracing_subscriber."0.2.5"."env-filter" or false); }
+      { "0.2.5"."regex" =
+        (f.tracing_subscriber."0.2.5"."regex" or false) ||
+        (f.tracing_subscriber."0.2.5".env-filter or false) ||
+        (tracing_subscriber."0.2.5"."env-filter" or false); }
+      { "0.2.5"."registry" =
+        (f.tracing_subscriber."0.2.5"."registry" or false) ||
+        (f.tracing_subscriber."0.2.5".fmt or false) ||
+        (tracing_subscriber."0.2.5"."fmt" or false); }
+      { "0.2.5"."serde" =
+        (f.tracing_subscriber."0.2.5"."serde" or false) ||
+        (f.tracing_subscriber."0.2.5".json or false) ||
+        (tracing_subscriber."0.2.5"."json" or false); }
+      { "0.2.5"."serde_json" =
+        (f.tracing_subscriber."0.2.5"."serde_json" or false) ||
+        (f.tracing_subscriber."0.2.5".json or false) ||
+        (tracing_subscriber."0.2.5"."json" or false); }
+      { "0.2.5"."sharded-slab" =
+        (f.tracing_subscriber."0.2.5"."sharded-slab" or false) ||
+        (f.tracing_subscriber."0.2.5".registry or false) ||
+        (tracing_subscriber."0.2.5"."registry" or false); }
+      { "0.2.5"."smallvec" =
+        (f.tracing_subscriber."0.2.5"."smallvec" or false) ||
+        (f.tracing_subscriber."0.2.5".default or false) ||
+        (tracing_subscriber."0.2.5"."default" or false); }
+      { "0.2.5"."tracing-log" =
+        (f.tracing_subscriber."0.2.5"."tracing-log" or false) ||
+        (f.tracing_subscriber."0.2.5".default or false) ||
+        (tracing_subscriber."0.2.5"."default" or false); }
+      { "0.2.5"."tracing-serde" =
+        (f.tracing_subscriber."0.2.5"."tracing-serde" or false) ||
+        (f.tracing_subscriber."0.2.5".json or false) ||
+        (tracing_subscriber."0.2.5"."json" or false); }
+      { "0.2.5".default = (f.tracing_subscriber."0.2.5".default or true); }
+    ];
+  }) [
+    (features_.ansi_term."${deps."tracing_subscriber"."0.2.5"."ansi_term"}" deps)
+    (features_.chrono."${deps."tracing_subscriber"."0.2.5"."chrono"}" deps)
+    (features_.lazy_static."${deps."tracing_subscriber"."0.2.5"."lazy_static"}" deps)
+    (features_.matchers."${deps."tracing_subscriber"."0.2.5"."matchers"}" deps)
+    (features_.regex."${deps."tracing_subscriber"."0.2.5"."regex"}" deps)
+    (features_.serde."${deps."tracing_subscriber"."0.2.5"."serde"}" deps)
+    (features_.serde_json."${deps."tracing_subscriber"."0.2.5"."serde_json"}" deps)
+    (features_.sharded_slab."${deps."tracing_subscriber"."0.2.5"."sharded_slab"}" deps)
+    (features_.smallvec."${deps."tracing_subscriber"."0.2.5"."smallvec"}" deps)
+    (features_.tracing_core."${deps."tracing_subscriber"."0.2.5"."tracing_core"}" deps)
+    (features_.tracing_log."${deps."tracing_subscriber"."0.2.5"."tracing_log"}" deps)
+    (features_.tracing_serde."${deps."tracing_subscriber"."0.2.5"."tracing_serde"}" deps)
+  ];
+
+
 # end
 # traitobject-0.1.0
 
@@ -5551,21 +6095,6 @@ rec {
   }) [];
 
 
-# end
-# ucd-util-0.1.3
-
-  crates.ucd_util."0.1.3" = deps: { features?(features_.ucd_util."0.1.3" deps {}) }: buildRustCrate {
-    crateName = "ucd-util";
-    version = "0.1.3";
-    description = "A small utility library for working with the Unicode character database.\n";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "1n1qi3jywq5syq90z9qd8qzbn58pcjgv1sx4sdmipm4jf9zanz15";
-  };
-  features_.ucd_util."0.1.3" = deps: f: updateFeatures f (rec {
-    ucd_util."0.1.3".default = (f.ucd_util."0.1.3".default or true);
-  }) [];
-
-
 # end
 # unicase-1.4.2
 
@@ -5750,21 +6279,6 @@ rec {
   }) [];
 
 
-# end
-# utf8-ranges-1.0.2
-
-  crates.utf8_ranges."1.0.2" = deps: { features?(features_.utf8_ranges."1.0.2" deps {}) }: buildRustCrate {
-    crateName = "utf8-ranges";
-    version = "1.0.2";
-    description = "Convert ranges of Unicode codepoints to UTF-8 byte ranges.";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "1my02laqsgnd8ib4dvjgd4rilprqjad6pb9jj9vi67csi5qs2281";
-  };
-  features_.utf8_ranges."1.0.2" = deps: f: updateFeatures f (rec {
-    utf8_ranges."1.0.2".default = (f.utf8_ranges."1.0.2".default or true);
-  }) [];
-
-
 # end
 # uuid-0.4.0
 
diff --git a/ofborg/Cargo.toml b/ofborg/Cargo.toml
index aaac11d..097978e 100644
--- a/ofborg/Cargo.toml
+++ b/ofborg/Cargo.toml
@@ -8,8 +8,6 @@ edition = "2018"
 
 [dependencies]
 either = "1.4.0"
-log = "= 0.3.8"
-env_logger = "= 0.4.3"
 # amqp = { path = "./rust-amqp/" } # for testing patches
 amqp = { git = "https://github.com/grahamc/rust-amqp.git" }
 md5 = "0.3.5"
@@ -19,6 +17,8 @@ serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
 tempfile = "2.2.0"
+tracing = "0.1.13"
+tracing-subscriber = { version = "0.2.5", features = ["json"] }
 hubcaps = { git = "https://github.com/grahamc/hubcaps.git" }
 #hubcaps = { path = "../../../grahamc/hubcaps/" } # for testing patches
 hyper = "0.10.*"
diff --git a/ofborg/src/asynccmd.rs b/ofborg/src/asynccmd.rs
index ec72565..8184ac6 100644
--- a/ofborg/src/asynccmd.rs
+++ b/ofborg/src/asynccmd.rs
@@ -4,6 +4,8 @@ use std::process::{Child, Command, ExitStatus, Stdio};
 use std::sync::mpsc::{self, sync_channel, Receiver, SyncSender};
 use std::thread::{self, JoinHandle};
 
+use tracing::{debug, error, info};
+
 // Specifically set to fall under 1/2 of the AMQP library's
 // SyncSender limitation.
 const OUT_CHANNEL_BUFFER_SIZE: usize = 30;
@@ -120,48 +122,7 @@ impl AsyncCmd {
             child_wait(WaitTarget::Child, monitor_tx, child),
         );
 
-        let head_waiter = thread::spawn(move || {
-            let mut return_status: Option<Result<ExitStatus, io::Error>> = None;
-
-            for (id, interior_result) in monitor_rx.iter() {
-                match waiters.remove(&id) {
-                    Some(handle) => {
-                        info!("Received notice that {:?} finished", id);
-                        let waiter_result = handle.join();
-
-                        info!("waiter status: {:?}", waiter_result);
-                        info!("interior status: {:?}", interior_result);
-
-                        match interior_result {
-                            WaitResult::Thread(t) => {
-                                debug!("thread result: {:?}", t);
-                            }
-                            WaitResult::Process(t) => {
-                                return_status = Some(t);
-                            }
-                        }
-                    }
-                    None => {
-                        error!(
-                            "Received notice that {:?} finished, but it isn't being waited on?",
-                            id
-                        );
-                    }
-                }
-
-                if waiters.is_empty() {
-                    debug!("Closing up the waiter receiver thread, no more waiters.");
-                    break;
-                }
-            }
-
-            info!(
-                "Out of the child waiter recv, with {:?} remaining waits",
-                waiters.len()
-            );
-
-            return_status
-        });
+        let head_waiter = thread::spawn(move || block_on_waiters(monitor_rx, waiters));
 
         SpawnedAsyncCmd {
             waiter: head_waiter,
@@ -188,6 +149,54 @@ impl SpawnedAsyncCmd {
     }
 }
 
+// FIXME: remove with rust/cargo update
+#[allow(clippy::cognitive_complexity)]
+fn block_on_waiters(
+    monitor_rx: mpsc::Receiver<(WaitTarget, WaitResult<()>)>,
+    mut waiters: HashMap<WaitTarget, thread::JoinHandle<()>>,
+) -> Option<Result<ExitStatus, io::Error>> {
+    let mut status = None;
+
+    for (id, interior_result) in monitor_rx.iter() {
+        match waiters.remove(&id) {
+            Some(handle) => {
+                info!("Received notice that {:?} finished", id);
+                let waiter_result = handle.join();
+
+                info!("waiter status: {:?}", waiter_result);
+                info!("interior status: {:?}", interior_result);
+
+                match interior_result {
+                    WaitResult::Thread(t) => {
+                        debug!("thread result: {:?}", t);
+                    }
+                    WaitResult::Process(t) => {
+                        status = Some(t);
+                    }
+                }
+            }
+            None => {
+                error!(
+                    "Received notice that {:?} finished, but it isn't being waited on?",
+                    id
+                );
+            }
+        }
+
+        if waiters.is_empty() {
+            debug!("Closing up the waiter receiver thread, no more waiters.");
+            break;
+        }
+    }
+
+    info!(
+        "Out of the child waiter recv, with {:?} remaining waits",
+        waiters.len()
+    );
+
+    status
+}
+
 #[cfg(test)]
 mod tests {
     use super::AsyncCmd;
diff --git a/ofborg/src/bin/build-faker.rs b/ofborg/src/bin/build-faker.rs
index ad51c40..778e336 100644
--- a/ofborg/src/bin/build-faker.rs
+++ b/ofborg/src/bin/build-faker.rs
@@ -1,4 +1,3 @@
-use log::{info, log};
 use ofborg::commentparser;
 use ofborg::config;
 use ofborg::easyamqp;
@@ -8,6 +7,8 @@ use ofborg::worker;
 
 use std::env;
 
+use tracing::info;
+
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
     ofborg::setup_log();
diff --git a/ofborg/src/bin/builder.rs b/ofborg/src/bin/builder.rs
index d5529e1..2a22c79 100644
--- a/ofborg/src/bin/builder.rs
+++ b/ofborg/src/bin/builder.rs
@@ -3,12 +3,14 @@ use std::error::Error;
 use std::path::Path;
 
 use async_std::task;
-use log::{info, log, warn};
+use tracing::{info, warn};
 
 use ofborg::easyamqp::{self, ChannelExt, ConsumerExt};
 use ofborg::easylapin;
 use ofborg::{checkout, config, tasks};
 
+// FIXME: remove with rust/cargo update
+#[allow(clippy::cognitive_complexity)]
 fn main() -> Result<(), Box<dyn Error>> {
     ofborg::setup_log();
 
diff --git a/ofborg/src/bin/evaluation-filter.rs b/ofborg/src/bin/evaluation-filter.rs
index 96e65ce..91d519f 100644
--- a/ofborg/src/bin/evaluation-filter.rs
+++ b/ofborg/src/bin/evaluation-filter.rs
@@ -1,5 +1,4 @@
 use amqp::Basic;
-use log::{info, log};
 use ofborg::config;
 use ofborg::easyamqp::{self, ChannelExt, ConsumerExt};
 use ofborg::tasks;
@@ -7,6 +6,8 @@ use ofborg::worker;
 
 use std::env;
 
+use tracing::info;
+
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
     ofborg::setup_log();
diff --git a/ofborg/src/bin/github-comment-filter.rs b/ofborg/src/bin/github-comment-filter.rs
index c872756..af18796 100644
--- a/ofborg/src/bin/github-comment-filter.rs
+++ b/ofborg/src/bin/github-comment-filter.rs
@@ -1,5 +1,3 @@
-use amqp::Basic;
-use log::{info, log};
 use ofborg::config;
 use ofborg::easyamqp::{self, ChannelExt, ConsumerExt};
 use ofborg::tasks;
@@ -7,6 +5,9 @@ use ofborg::worker;
 
 use std::env;
 
+use amqp::Basic;
+use tracing::info;
+
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
     ofborg::setup_log();
diff --git a/ofborg/src/bin/github-comment-poster.rs b/ofborg/src/bin/github-comment-poster.rs
index cca3925..25d0c66 100644
--- a/ofborg/src/bin/github-comment-poster.rs
+++ b/ofborg/src/bin/github-comment-poster.rs
@@ -1,5 +1,3 @@
-use amqp::Basic;
-use log::{info, log};
 use ofborg::config;
 use ofborg::easyamqp::{self, ChannelExt, ConsumerExt};
 use ofborg::tasks;
@@ -7,6 +5,9 @@ use ofborg::worker;
 
 use std::env;
 
+use amqp::Basic;
+use tracing::info;
+
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
     ofborg::setup_log();
diff --git a/ofborg/src/bin/log-message-collector.rs b/ofborg/src/bin/log-message-collector.rs
index b49a809..a9e5cef 100644
--- a/ofborg/src/bin/log-message-collector.rs
+++ b/ofborg/src/bin/log-message-collector.rs
@@ -1,4 +1,3 @@
-use log::{info, log};
 use ofborg::config;
 use ofborg::easyamqp::{self, ChannelExt, ConsumerExt};
 use ofborg::tasks;
@@ -7,6 +6,8 @@ use ofborg::worker;
 use std::env;
 use std::path::PathBuf;
 
+use tracing::info;
+
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
     ofborg::setup_log();
diff --git a/ofborg/src/bin/log-message-generator.rs b/ofborg/src/bin/log-message-generator.rs
index 467d791..6ab7915 100644
--- a/ofborg/src/bin/log-message-generator.rs
+++ b/ofborg/src/bin/log-message-generator.rs
@@ -1,4 +1,3 @@
-use log::{info, log};
 use ofborg::config;
 use ofborg::easyamqp;
 use ofborg::message::{buildjob, Pr, Repo};
@@ -9,6 +8,8 @@ use std::env;
 use std::thread;
 use std::time::Duration;
 
+use tracing::info;
+
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
     ofborg::setup_log();
diff --git a/ofborg/src/bin/mass-rebuilder.rs b/ofborg/src/bin/mass-rebuilder.rs
index 353afe6..8db5be9 100644
--- a/ofborg/src/bin/mass-rebuilder.rs
+++ b/ofborg/src/bin/mass-rebuilder.rs
@@ -1,5 +1,3 @@
-use amqp::Basic;
-use log::{error, info, log};
 use ofborg::checkout;
 use ofborg::config;
 use ofborg::easyamqp::{self, ChannelExt, ConsumerExt};
@@ -11,6 +9,11 @@ use std::env;
 use std::path::Path;
 use std::process;
 
+use amqp::Basic;
+use tracing::{error, info};
+
+// FIXME: remove with rust/cargo update
+#[allow(clippy::cognitive_complexity)]
 fn main() {
     let memory_info = sys_info::mem_info().expect("Unable to get memory information from OS");
 
diff --git a/ofborg/src/bin/stats.rs b/ofborg/src/bin/stats.rs
index a835cbf..06a4ffc 100644
--- a/ofborg/src/bin/stats.rs
+++ b/ofborg/src/bin/stats.rs
@@ -1,12 +1,13 @@
-use amqp::Basic;
-use hyper::server::{Request, Response, Server};
-use log::{info, log};
 use ofborg::easyamqp::{ChannelExt, ConsumerExt};
 use ofborg::{config, easyamqp, stats, tasks, worker};
 
 use std::env;
 use std::thread;
 
+use amqp::Basic;
+use hyper::server::{Request, Response, Server};
+use tracing::info;
+
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
     ofborg::setup_log();
diff --git a/ofborg/src/checkout.rs b/ofborg/src/checkout.rs
index 10cd7de..8e4109b 100644
--- a/ofborg/src/checkout.rs
+++ b/ofborg/src/checkout.rs
@@ -6,6 +6,8 @@ use std::io::{Error, ErrorKind};
 use std::path::{Path, PathBuf};
 use std::process::{Command, Stdio};
 
+use tracing::info;
+
 pub struct CachedCloner {
     root: PathBuf,
 }
diff --git a/ofborg/src/clone.rs b/ofborg/src/clone.rs
index cba44b6..4b177ae 100644
--- a/ofborg/src/clone.rs
+++ b/ofborg/src/clone.rs
@@ -6,6 +6,8 @@ use std::io::{Error, ErrorKind};
 use std::path::PathBuf;
 use std::process::{Command, Stdio};
 
+use tracing::{debug, info, warn};
+
 pub struct Lock {
     lock: Option<fs::File>,
 }
diff --git a/ofborg/src/commentparser.rs b/ofborg/src/commentparser.rs
index 16eaa52..8488894 100644
--- a/ofborg/src/commentparser.rs
+++ b/ofborg/src/commentparser.rs
@@ -1,4 +1,5 @@
 use nom::types::CompleteStr;
+use tracing::warn;
 
 pub fn parse(text: &str) -> Option<Vec<Instruction>> {
     let instructions: Vec<Instruction> = text
diff --git a/ofborg/src/commitstatus.rs b/ofborg/src/commitstatus.rs
index 3ad3d1b..8ee6dd6 100644
--- a/ofborg/src/commitstatus.rs
+++ b/ofborg/src/commitstatus.rs
@@ -1,3 +1,5 @@
+use tracing::warn;
+
 pub struct CommitStatus<'a> {
     api: hubcaps::statuses::Statuses<'a>,
     sha: String,
diff --git a/ofborg/src/config.rs b/ofborg/src/config.rs
index 8df12b0..1f3fc81 100644
--- a/ofborg/src/config.rs
+++ b/ofborg/src/config.rs
@@ -1,16 +1,17 @@
 use crate::acl;
 use crate::nix::Nix;
 
-use hubcaps::{Credentials, Github, InstallationTokenGenerator, JWTCredentials};
-use hyper::net::HttpsConnector;
-use hyper::Client;
-use hyper_native_tls::NativeTlsClient;
-
 use std::collections::HashMap;
 use std::fs::File;
 use std::io::Read;
 use std::path::{Path, PathBuf};
 
+use hubcaps::{Credentials, Github, InstallationTokenGenerator, JWTCredentials};
+use hyper::net::HttpsConnector;
+use hyper::Client;
+use hyper_native_tls::NativeTlsClient;
+use tracing::{debug, error, info, warn};
+
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Config {
     pub runner: RunnerConfig,
@@ -125,11 +126,7 @@ impl Config {
 
     pub fn nix(&self) -> Nix {
         if self.nix.build_timeout_seconds < 1200 {
-            error!(
-                "Note: {} is way too low for build_timeout_seconds!",
-                self.nix.build_timeout_seconds
-            );
-            error!("Please set build_timeout_seconds to at least 1200");
+            error!(?self.nix.build_timeout_seconds, "Please set build_timeout_seconds to at least 1200");
             panic!();
         }
 
diff --git a/ofborg/src/easyamqp.rs b/ofborg/src/easyamqp.rs
index a253fa3..d2b4b13 100644
--- a/ofborg/src/easyamqp.rs
+++ b/ofborg/src/easyamqp.rs
@@ -2,6 +2,7 @@ use crate::config::RabbitMQConfig;
 use crate::ofborg;
 
 use amqp::Basic;
+use tracing::info;
 
 pub struct ConsumeConfig {
     /// Specifies the name of the queue to consume from.
diff --git a/ofborg/src/easylapin.rs b/ofborg/src/easylapin.rs
index 1aeee73..d6fa113 100644
--- a/ofborg/src/easylapin.rs
+++ b/ofborg/src/easylapin.rs
@@ -21,6 +21,7 @@ use lapin::types::{AMQPValue, FieldTable};
 use lapin::{
     BasicProperties, Channel, CloseOnDrop, Connection, ConnectionProperties, ExchangeKind,
 };
+use tracing::{debug, trace};
 
 pub fn from_config(cfg: &RabbitMQConfig) -> Result<CloseOnDrop<Connection>, lapin::Error> {
     let mut props = FieldTable::default();
@@ -95,6 +96,7 @@ impl<'a, W: SimpleWorker + 'a> ConsumerExt<'a, W> for CloseOnDrop<Channel> {
         ))?;
         Ok(Box::pin(async move {
             while let Some(Ok(deliver)) = consumer.next().await {
+                debug!(?deliver.delivery_tag, "consumed delivery");
                 let content_type = deliver.properties.content_type();
                 let job = worker
                     .msg_to_job(
@@ -109,6 +111,7 @@ impl<'a, W: SimpleWorker + 'a> ConsumerExt<'a, W> for CloseOnDrop<Channel> {
                         .await
                         .expect("action deliver failure");
                 }
+                debug!(?deliver.delivery_tag, "done");
             }
         }))
     }
@@ -146,7 +149,7 @@ impl<'a, W: SimpleNotifyWorker + 'a> ConsumerExt<'a, W> for NotifyChannel {
         let mut chan = self.0;
         Ok(Box::pin(async move {
             while let Some(Ok(deliver)) = consumer.next().await {
-                log::debug!("delivery {}", deliver.delivery_tag);
+                debug!(?deliver.delivery_tag, "consumed delivery");
                 let mut receiver = ChannelNotificationReceiver {
                     channel: &mut chan,
                     deliver: &deliver,
@@ -162,6 +165,7 @@ impl<'a, W: SimpleNotifyWorker + 'a> ConsumerExt<'a, W> for NotifyChannel {
                     .expect("worker unexpected message consumed");
 
                 worker.consumer(&job, &mut receiver);
+                debug!(?deliver.delivery_tag, "done");
             }
         }))
     }
@@ -174,25 +178,25 @@ async fn action_deliver(
 ) -> Result<(), lapin::Error> {
     match action {
         Action::Ack => {
-            log::debug!("action ack");
+            debug!(?deliver.delivery_tag, "action ack");
             chan.basic_ack(deliver.delivery_tag, BasicAckOptions::default())
                 .await
         }
         Action::NackRequeue => {
-            log::debug!("action nack requeue");
+            debug!(?deliver.delivery_tag, "action nack requeue");
             let mut opts = BasicNackOptions::default();
             opts.requeue = true;
             chan.basic_nack(deliver.delivery_tag, opts).await
         }
         Action::NackDump => {
-            log::debug!("action nack dump");
+            debug!(?deliver.delivery_tag, "action nack dump");
             chan.basic_nack(deliver.delivery_tag, BasicNackOptions::default())
                 .await
         }
         Action::Publish(mut msg) => {
             let exch = msg.exchange.take().unwrap_or_else(|| "".to_owned());
             let key = msg.routing_key.take().unwrap_or_else(|| "".to_owned());
-            log::debug!("action publish {}", exch);
+            trace!(?exch, ?key, "action publish");
 
             let mut props = BasicProperties::default().with_delivery_mode(2); // persistent.
 
diff --git a/ofborg/src/lib.rs b/ofborg/src/lib.rs
index f5bc48a..35928c3 100644
--- a/ofborg/src/lib.rs
+++ b/ofborg/src/lib.rs
@@ -8,14 +8,14 @@
 #[macro_use]
 extern crate serde_derive;
 
-#[macro_use]
-extern crate log;
-
 #[macro_use]
 extern crate nom;
 
 use std::env;
 
+use tracing_subscriber::prelude::*;
+use tracing_subscriber::EnvFilter;
+
 pub mod acl;
 pub mod asynccmd;
 pub mod checkout;
@@ -90,11 +90,25 @@ pub mod ofborg {
 }
 
 pub fn setup_log() {
-    if env::var("RUST_LOG").is_err() {
-        env::set_var("RUST_LOG", "info");
-        env_logger::init().unwrap();
-        info!("Defaulting RUST_LOG environment variable to info");
+    let filter_layer = EnvFilter::try_from_default_env()
+        .or_else(|_| EnvFilter::try_new("info"))
+        .unwrap();
+
+    let log_json = env::var("RUST_LOG_JSON").map_or(false, |s| s == "1");
+
+    if log_json {
+        let fmt_layer = tracing_subscriber::fmt::layer().json();
+        tracing_subscriber::registry()
+            .with(filter_layer)
+            .with(fmt_layer)
+            .init();
     } else {
-        env_logger::init().unwrap();
+        let fmt_layer = tracing_subscriber::fmt::layer();
+        tracing_subscriber::registry()
+            .with(filter_layer)
+            .with(fmt_layer)
+            .init();
     }
+
+    tracing::info!("Logging configured");
 }
diff --git a/ofborg/src/nix.rs b/ofborg/src/nix.rs
index e0bb21a..df0bada 100644
--- a/ofborg/src/nix.rs
+++ b/ofborg/src/nix.rs
@@ -1,8 +1,7 @@
 use crate::asynccmd::{AsyncCmd, SpawnedAsyncCmd};
+use crate::message::buildresult::BuildStatus;
 use crate::ofborg::partition_result;
 
-use tempfile::tempfile;
-
 use std::collections::HashMap;
 use std::env;
 use std::ffi::OsStr;
@@ -12,6 +11,8 @@ use std::io::{BufRead, BufReader, Seek, SeekFrom};
 use std::path::Path;
 use std::process::{Command, Stdio};
 
+use tempfile::tempfile;
+
 #[derive(Clone, Copy, Debug, PartialEq)]
 pub enum File {
     DefaultNixpkgs,
@@ -358,6 +359,25 @@ pub fn is_user_setting_warning(line: &str) -> bool {
         && line.ends_with("because it is a restricted setting and you are not a trusted user")
 }
 
+pub fn wait_for_build_status(spawned: SpawnedAsyncCmd) -> BuildStatus {
+    match spawned.wait() {
+        Ok(s) => match s.code() {
+            Some(0) => BuildStatus::Success,
+            Some(100) => BuildStatus::Failure, // nix permanent failure
+            Some(101) => BuildStatus::TimedOut, // nix build timedout
+            Some(i) => BuildStatus::UnexpectedError {
+                err: format!("command failed with exit code {}", i),
+            },
+            None => BuildStatus::UnexpectedError {
+                err: "unexpected build failure".into(),
+            },
+        },
+        e => BuildStatus::UnexpectedError {
+            err: format!("failed on interior command {:?}", e),
+        },
+    }
+}
+
 #[cfg(test)]
 mod tests {
     fn nix() -> Nix {
diff --git a/ofborg/src/nixenv.rs b/ofborg/src/nixenv.rs
index 6915ec7..000661a 100644
--- a/ofborg/src/nixenv.rs
+++ b/ofborg/src/nixenv.rs
@@ -8,6 +8,8 @@ use std::fs::{self, File};
 use std::io::{self, BufRead, BufReader, Read, Seek, SeekFrom, Write};
 use std::path::PathBuf;
 
+use tracing::warn;
+
 pub struct HydraNixEnv {
     path: PathBuf,
     nix: nix::Nix,
diff --git a/ofborg/src/outpathdiff.rs b/ofborg/src/outpathdiff.rs
index 86de6ea..e482b5d 100644
--- a/ofborg/src/outpathdiff.rs
+++ b/ofborg/src/outpathdiff.rs
@@ -6,6 +6,8 @@ use std::collections::{HashMap, HashSet};
 use std::io::BufRead;
 use std::path::PathBuf;
 
+use tracing::{debug, info, trace};
+
 pub struct OutPathDiff {
     calculator: HydraNixEnv,
     pub original: Option<(PackageOutPaths, EvaluationStats)>,
diff --git a/ofborg/src/tagger.rs b/ofborg/src/tagger.rs
index 19939ce..8ecdc7a 100644
--- a/ofborg/src/tagger.rs
+++ b/ofborg/src/tagger.rs
@@ -4,6 +4,8 @@ use crate::tasks;
 
 use std::collections::HashMap;
 
+use tracing::info;
+
 pub struct StdenvTagger {
     possible: Vec<String>,
     selected: Vec<String>,
diff --git a/ofborg/src/tasks/build.rs b/ofborg/src/tasks/build.rs
index 0d8c42f..4ab29c1 100644
--- a/ofborg/src/tasks/build.rs
+++ b/ofborg/src/tasks/build.rs
@@ -6,10 +6,11 @@ use crate::nix;
 use crate::notifyworker;
 use crate::worker;
 
-use uuid::Uuid;
-
 use std::collections::VecDeque;
 
+use tracing::{debug, debug_span, error, info};
+use uuid::Uuid;
+
 pub struct BuildWorker {
     cloner: checkout::CachedCloner,
     nix: nix::Nix,
@@ -270,19 +271,28 @@ impl notifyworker::SimpleNotifyWorker for BuildWorker {
         }
     }
 
+    // FIXME: remove with rust/cargo update
+    #[allow(clippy::cognitive_complexity)]
     fn consumer(
         &self,
         job: &buildjob::BuildJob,
         notifier: &mut dyn notifyworker::NotificationReceiver,
     ) {
+        let span = debug_span!("job", pr = ?job.pr.number);
+        let _enter = span.enter();
+
         let mut actions = self.actions(&job, notifier);
 
         if job.attrs.is_empty() {
+            debug!("No attrs to build");
             actions.nothing_to_do();
             return;
         }
 
-        info!("Working on {}", job.pr.number);
+        info!(
+            "Working on https://github.com/{}/pull/{}",
+            job.repo.full_name, job.pr.number
+        );
         let project = self
             .cloner
             .project(&job.repo.full_name, job.repo.clone_url.clone());
@@ -353,23 +363,7 @@ impl notifyworker::SimpleNotifyWorker for BuildWorker {
             actions.log_line(&line);
         }
 
-        // TODO: this belongs in the nix module.
-        let status = match spawned.wait() {
-            Ok(s) => match s.code() {
-                Some(0) => BuildStatus::Success,
-                Some(100) => BuildStatus::Failure, // nix permanent failure
-                Some(101) => BuildStatus::TimedOut, // nix build timedout
-                Some(i) => BuildStatus::UnexpectedError {
-                    err: format!("command failed with exit code {}", i),
-                },
-                None => BuildStatus::UnexpectedError {
-                    err: "unexpected build failure".into(),
-                },
-            },
-            e => BuildStatus::UnexpectedError {
-                err: format!("failed on interior command {:?}", e),
-            },
-        };
+        let status = nix::wait_for_build_status(spawned);
 
         info!("ok built ({:?}), building", status);
         info!("Lines:");
diff --git a/ofborg/src/tasks/eval/nixpkgs.rs b/ofborg/src/tasks/eval/nixpkgs.rs
index d8b73dd..9374d16 100644
--- a/ofborg/src/tasks/eval/nixpkgs.rs
+++ b/ofborg/src/tasks/eval/nixpkgs.rs
@@ -16,16 +16,17 @@ use crate::tasks::eval::{
 };
 use crate::tasks::evaluate::{make_gist, update_labels};
 
+use std::collections::HashMap;
+use std::path::Path;
+
 use chrono::Utc;
 use hubcaps::checks::{CheckRunOptions, CheckRunState, Conclusion, Output};
 use hubcaps::gists::Gists;
 use hubcaps::issues::{Issue, IssueRef};
 use hubcaps::repositories::Repository;
+use tracing::warn;
 use uuid::Uuid;
 
-use std::collections::HashMap;
-use std::path::Path;
-
 pub struct NixpkgsStrategy<'a> {
     job: &'a EvaluationJob,
     pull: &'a hubcaps::pulls::PullRequest<'a>,
diff --git a/ofborg/src/tasks/eval/stdenvs.rs b/ofborg/src/tasks/eval/stdenvs.rs
index fcaeb34..673f462 100644
--- a/ofborg/src/tasks/eval/stdenvs.rs
+++ b/ofborg/src/tasks/eval/stdenvs.rs
@@ -3,6 +3,8 @@ use crate::nix;
 
 use std::path::PathBuf;
 
+use tracing::{info, warn};
+
 enum StdenvFrom {
     Before,
     After,
diff --git a/ofborg/src/tasks/evaluate.rs b/ofborg/src/tasks/evaluate.rs
index 751e48c..2ee5bfa 100644
--- a/ofborg/src/tasks/evaluate.rs
+++ b/ofborg/src/tasks/evaluate.rs
@@ -11,15 +11,16 @@ use crate::systems;
 use crate::tasks::eval;
 use crate::worker;
 
-use hubcaps::checks::CheckRunOptions;
-use hubcaps::gists::Gists;
-use hubcaps::issues::Issue;
-
 use std::collections::HashMap;
 use std::path::Path;
 use std::sync::RwLock;
 use std::time::Instant;
 
+use hubcaps::checks::CheckRunOptions;
+use hubcaps::gists::Gists;
+use hubcaps::issues::Issue;
+use tracing::{debug_span, error, info, warn};
+
 pub struct EvaluationWorker<E> {
     cloner: checkout::CachedCloner,
     nix: nix::Nix,
@@ -245,7 +246,12 @@ impl<'a, E: stats::SysEvents + 'static> OneEval<'a, E> {
         }
     }
 
+    // FIXME: remove with rust/cargo update
+    #[allow(clippy::cognitive_complexity)]
     fn evaluate_job(&mut self) -> Result<worker::Actions, EvalWorkerError> {
+        let span = debug_span!("job", pr = ?self.job.pr.number);
+        let _enter = span.enter();
+
         let job = self.job;
         let repo = self
             .client_app
diff --git a/ofborg/src/tasks/evaluationfilter.rs b/ofborg/src/tasks/evaluationfilter.rs
index c8184b6..5a2f10f 100644
--- a/ofborg/src/tasks/evaluationfilter.rs
+++ b/ofborg/src/tasks/evaluationfilter.rs
@@ -3,6 +3,8 @@ use crate::ghevent;
 use crate::message::{evaluationjob, Pr, Repo};
 use crate::worker;
 
+use tracing::info;
+
 pub struct EvaluationFilterWorker {
     acl: acl::ACL,
 }
diff --git a/ofborg/src/tasks/githubcommentfilter.rs b/ofborg/src/tasks/githubcommentfilter.rs
index 239fca7..03a1c0d 100644
--- a/ofborg/src/tasks/githubcommentfilter.rs
+++ b/ofborg/src/tasks/githubcommentfilter.rs
@@ -4,6 +4,7 @@ use crate::ghevent;
 use crate::message::{buildjob, evaluationjob, Pr, Repo};
 use crate::worker;
 
+use tracing::{error, info};
 use uuid::Uuid;
 
 pub struct GitHubCommentWorker {
diff --git a/ofborg/src/tasks/githubcommentposter.rs b/ofborg/src/tasks/githubcommentposter.rs
index 82fea77..188b73a 100644
--- a/ofborg/src/tasks/githubcommentposter.rs
+++ b/ofborg/src/tasks/githubcommentposter.rs
@@ -6,6 +6,7 @@ use crate::worker;
 
 use chrono::{DateTime, Utc};
 use hubcaps::checks::{CheckRunOptions, CheckRunState, Conclusion, Output};
+use tracing::info;
 
 pub struct GitHubCommentPoster {
     github_vend: GithubAppVendingMachine,
diff --git a/ofborg/src/tasks/log_message_collector.rs b/ofborg/src/tasks/log_message_collector.rs
index 38a0bd1..3240531 100644
--- a/ofborg/src/tasks/log_message_collector.rs
+++ b/ofborg/src/tasks/log_message_collector.rs
@@ -3,12 +3,13 @@ use crate::message::buildresult::BuildResult;
 use crate::worker;
 use crate::writetoline::LineWriter;
 
-use lru_cache::LruCache;
-
 use std::fs::{self, File, OpenOptions};
 use std::io::Write;
 use std::path::{Component, PathBuf};
 
+use lru_cache::LruCache;
+use tracing::warn;
+
 #[derive(Eq, PartialEq, Hash, Debug, Clone)]
 pub struct LogFrom {
     routing_key: String,
diff --git a/ofborg/src/tasks/statscollector.rs b/ofborg/src/tasks/statscollector.rs
index 84e733e..c28707b 100644
--- a/ofborg/src/tasks/statscollector.rs
+++ b/ofborg/src/tasks/statscollector.rs
@@ -1,6 +1,8 @@
 use crate::stats;
 use crate::worker;
 
+use tracing::error;
+
 pub struct StatCollectorWorker<E> {
     events: E,
     collector: stats::MetricCollector,
diff --git a/ofborg/src/test_scratch.rs b/ofborg/src/test_scratch.rs
index e8e1884..ae20f5d 100644
--- a/ofborg/src/test_scratch.rs
+++ b/ofborg/src/test_scratch.rs
@@ -2,6 +2,8 @@ use std::fs;
 use std::path::{Path, PathBuf};
 use std::process::Command;
 
+use tracing::debug;
+
 pub struct TestScratch {
     root: PathBuf,
 }
diff --git a/ofborg/src/worker.rs b/ofborg/src/worker.rs
index 51a72ba..960917a 100644
--- a/ofborg/src/worker.rs
+++ b/ofborg/src/worker.rs
@@ -1,8 +1,9 @@
+use std::marker::Send;
+
 use amqp::protocol::basic::{BasicProperties, Deliver};
 use amqp::Basic;
 use serde::Serialize;
-
-use std::marker::Send;
+use tracing::error;
 
 pub struct Worker<T: SimpleWorker> {
     internal: T,