diff --git a/ofborg/.gitignore b/ofborg/.gitignore
index eb5a316..cf52c5b 100644
--- a/ofborg/.gitignore
+++ b/ofborg/.gitignore
@@ -1 +1,2 @@
 target
+rust-amqp
diff --git a/ofborg/Cargo.lock b/ofborg/Cargo.lock
index 734e7fa..5d7537d 100644
--- a/ofborg/Cargo.lock
+++ b/ofborg/Cargo.lock
@@ -4,27 +4,18 @@ version = "0.1.0"
 dependencies = [
  "amqp 0.1.0 (git+https://github.com/grahamc/rust-amqp.git)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "fs2 0.4.2 (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 0.10.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper-native-tls 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "md5 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "advapi32-sys"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "aho-corasick"
 version = "0.5.3"
@@ -35,10 +26,10 @@ dependencies = [
 
 [[package]]
 name = "aho-corasick"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -51,18 +42,19 @@ dependencies = [
  "enum_primitive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "amqp"
 version = "0.1.0"
-source = "git+https://github.com/grahamc/rust-amqp.git#07ff696c26f5fc7725a5183fa6d2180489f59ae1"
+source = "git+https://github.com/grahamc/rust-amqp.git#46c56b3c4d0b30cbac6c0cc83033f2784f99f0ee"
 dependencies = [
  "amq-proto 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl 0.9.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -73,16 +65,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "backtrace"
-version = "0.3.3"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "backtrace-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -90,8 +80,8 @@ name = "backtrace-sys"
 version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -99,7 +89,7 @@ name = "base64"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -110,12 +100,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bitflags"
-version = "0.7.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bitflags"
-version = "0.9.1"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -125,12 +115,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "byteorder"
-version = "1.1.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cc"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -144,7 +134,7 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -152,25 +142,7 @@ name = "core-foundation-sys"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "crypt32-sys"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "dbghelp-sys"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -183,7 +155,7 @@ name = "enum_primitive"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -191,7 +163,7 @@ name = "env_logger"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -200,8 +172,8 @@ 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 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -209,43 +181,48 @@ name = "error-chain"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "foreign-types"
-version = "0.2.0"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "foreign-types-shared 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "fs2"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "fuchsia-zircon"
-version = "0.2.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fuchsia-zircon-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "fuchsia-zircon-sys"
-version = "0.2.0"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "httparse"
-version = "1.2.3"
+version = "1.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -255,10 +232,10 @@ source = "git+https://github.com/grahamc/hubcaps.git#3ddb700e6b51d7ffc2edd3b0019
 dependencies = [
  "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.10.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -268,12 +245,12 @@ version = "0.10.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "httparse 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "httparse 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -287,7 +264,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.10.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "native-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -321,18 +298,34 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "lazy_static"
-version = "0.2.9"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "lazy_static"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.33"
+version = "0.2.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "log"
-version = "0.3.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "log"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "matches"
@@ -349,15 +342,15 @@ name = "memchr"
 version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "memchr"
-version = "1.0.2"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -365,16 +358,18 @@ name = "mime"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "native-tls"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "openssl 0.9.20 (registry+https://github.com/rust-lang/crates.io-index)",
- "schannel 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "schannel 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "security-framework 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "security-framework-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -382,36 +377,36 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.1.40"
+version = "0.1.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "num_cpus"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "openssl"
-version = "0.9.20"
+version = "0.9.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.20"
+version = "0.9.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -433,16 +428,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rand"
-version = "0.3.18"
+version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fuchsia-zircon 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.31"
+version = "0.1.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -459,13 +454,13 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "0.2.2"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -476,7 +471,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "regex-syntax"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -491,25 +486,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "0.1.8"
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- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -519,7 +500,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -529,27 +510,27 @@ version = "0.1.16"
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- "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "1.0.19"
+version = "1.0.27"
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 [[package]]
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- "serde_derive_internals 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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@@ -558,13 +539,13 @@ dependencies = [
 
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 [[package]]
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 dependencies = [
- "rand 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -599,9 +580,9 @@ version = "2.2.0"
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@@ -611,7 +592,7 @@ version = "2.0.0"
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 [[package]]
@@ -624,22 +605,21 @@ dependencies = [
 
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 [[package]]
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 [[package]]
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 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
 "checksum tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"
 "checksum tempfile 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "11ce2fe9db64b842314052e2421ac61a73ce41b898dc8e3750398b219c5fc1e0"
 "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 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "1697c4b57aeeb7a536b647165a2825faddffb1d3bad386d507709bd51a90bb14"
-"checksum time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "d5d788d3aa77bc0ef3e9621256885555368b47bd495c13dd2e7413c89f845520"
+"checksum thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "279ef31c19ededf577bfd12dfae728040a21f635b06a24cd670ff510edd38963"
+"checksum time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "a15375f1df02096fb3317256ce2cee6a1f42fc84ea5ad5fc8c421cfe40c73098"
 "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 unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
@@ -823,4 +821,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum version_check 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6b772017e347561807c1aa192438c5fd74242a670a6cffacc40f2defd1dc069d"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
+"checksum winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "04e3bd221fcbe8a271359c04f21a76db7d0c6028862d1bb5512d85e1e2eb5bb3"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
+"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/ofborg/Cargo.toml b/ofborg/Cargo.toml
index 8763689..50d320f 100644
--- a/ofborg/Cargo.toml
+++ b/ofborg/Cargo.toml
@@ -6,6 +6,7 @@ authors = ["Graham Christensen <graham@grahamc.com>"]
 [dependencies]
 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"
 fs2 = "0.4.2"
diff --git a/ofborg/src/commentparser.rs b/ofborg/src/commentparser.rs
index 383e6c6..b7eecc9 100644
--- a/ofborg/src/commentparser.rs
+++ b/ofborg/src/commentparser.rs
@@ -183,9 +183,9 @@ baz"));
     #[test]
     fn test_comment() {
         assert_eq!(Some(vec![Instruction::Build(Subset::NixOS, vec![
-            String::from("tests.foo"),
-            String::from("tests.bar"),
-            String::from("tests.baz")
+            String::from("tests.foo.x86_64-linux"),
+            String::from("tests.bar.x86_64-linux"),
+            String::from("tests.baz.x86_64-linux")
         ])]),
                    parse("@GrahamCOfBorg test foo bar baz"));
     }
diff --git a/ofborg/src/nix.rs b/ofborg/src/nix.rs
index dbb21c2..5692a28 100644
--- a/ofborg/src/nix.rs
+++ b/ofborg/src/nix.rs
@@ -31,6 +31,12 @@ impl Nix {
     }
 
     pub fn safely_build_attrs(&self, nixpkgs: &Path, file: &str, attrs: Vec<String>) -> Result<File,File> {
+        let cmd = self.safely_build_attrs_cmd(nixpkgs, file, attrs);
+
+        return self.run(cmd, true);
+    }
+
+    pub fn safely_build_attrs_cmd(&self, nixpkgs: &Path, file: &str, attrs: Vec<String>) -> Command {
         let mut attrargs: Vec<String> = Vec::with_capacity(3 + (attrs.len() * 2));
         attrargs.push(file.to_owned());
         attrargs.push(String::from("--no-out-link"));
@@ -40,14 +46,14 @@ impl Nix {
             attrargs.push(attr);
         }
 
-        return self.safely("nix-build", nixpkgs, attrargs, true);
+        return self.safe_command("nix-build", nixpkgs, attrargs);
     }
 
     pub fn safely(&self, cmd: &str, nixpkgs: &Path, args: Vec<String>, keep_stdout: bool) -> Result<File,File> {
-        let mut nixpath = OsString::new();
-        nixpath.push("nixpkgs=");
-        nixpath.push(nixpkgs.as_os_str());
+        return self.run(self.safe_command(cmd, nixpkgs, args), keep_stdout);
+    }
 
+    pub fn run(&self, mut cmd: Command, keep_stdout: bool) -> Result<File,File> {
         let stderr = tempfile().expect("Fetching a stderr tempfile");
         let mut reader = stderr.try_clone().expect("Cloning stderr to the reader");
 
@@ -60,22 +66,11 @@ impl Nix {
             stdout = Stdio::null();
         }
 
-
-        let status = Command::new(cmd)
-            .env_clear()
-            .current_dir(nixpkgs)
+        let status = cmd
             .stdout(Stdio::from(stdout))
             .stderr(Stdio::from(stderr))
-            .env("HOME", "/homeless-shelter")
-            .env("NIX_PATH", nixpath)
-            .env("NIX_REMOTE", &self.remote)
-            .args(&["--show-trace"])
-            .args(&["--option", "restrict-eval", "true"])
-            .args(&["--option", "build-timeout", &format!("{}", self.build_timeout)])
-            .args(&["--argstr", "system", &self.system])
-            .args(args)
             .status()
-            .expect(format!("Running {:?}", cmd).as_ref());
+            .expect(format!("Running a program ...").as_ref());
 
         reader.seek(SeekFrom::Start(0)).expect("Seeking to Start(0)");
 
@@ -85,4 +80,217 @@ impl Nix {
             return Err(reader)
         }
     }
+
+    pub fn safe_command(&self, cmd: &str, nixpkgs: &Path, args: Vec<String>) -> Command {
+        let mut nixpath = OsString::new();
+        nixpath.push("nixpkgs=");
+        nixpath.push(nixpkgs.as_os_str());
+
+        let mut command = Command::new(cmd);
+        command.env_clear();
+        command.current_dir(nixpkgs);
+        command.env("HOME", "/homeless-shelter");
+        command.env("NIX_PATH", nixpath);
+        command.env("NIX_REMOTE", &self.remote);
+        command.args(&["--show-trace"]);
+        command.args(&["--option", "restrict-eval", "true"]);
+        command.args(&["--option", "build-timeout", &format!("{}", self.build_timeout)]);
+        command.args(&["--argstr", "system", &self.system]);
+        command.args(args);
+
+        return command;
+    }
+
+}
+
+#[cfg(test)]
+mod tests {
+    fn nix() -> Nix {
+        Nix::new("x86_64-linux".to_owned(), "daemon".to_owned(), 1800)
+    }
+
+    fn build_path() -> PathBuf {
+        let mut cwd = env::current_dir().unwrap();
+        cwd.push(Path::new("./test-srcs/build"));
+        return cwd;
+    }
+
+    fn passing_eval_path() -> PathBuf {
+        let mut cwd = env::current_dir().unwrap();
+        cwd.push(Path::new("./test-srcs/eval"));
+        return cwd;
+    }
+
+    #[derive(Debug)]
+    enum Expect {
+        Pass,
+        Fail,
+    }
+
+    fn assert_run(res: Result<File,File>, expected: Expect, require: Vec<&str>) {
+        let expectation_held: bool = match expected {
+            Expect::Pass => res.is_ok(),
+            Expect::Fail => res.is_err(),
+        };
+
+        let file: File = match res {
+            Ok(file) => file,
+            Err(file) => file,
+        };
+
+        let lines: Vec<String> = BufReader::new(file)
+            .lines()
+            .into_iter()
+            .filter(|line| line.is_ok())
+            .map(|line| line.unwrap())
+            .collect();
+
+        let buildlog = lines
+            .into_iter()
+            .map(|line| format!("   | {}", line))
+            .collect::<Vec<String>>()
+            .join("\n");
+
+        let total_requirements = require.len();
+        let mut missed_requirements: usize = 0;
+        let requirements_held: Vec<Result<String, String>> =
+            require.into_iter()
+            .map(|line| line.to_owned())
+            .map(|line|
+                 if buildlog.contains(&line) {
+                     Ok(line)
+                 } else {
+                     missed_requirements += 1;
+                     Err(line)
+                 }
+            )
+            .collect();
+
+        let mut prefixes: Vec<String> = vec![
+            "".to_owned(),
+            "".to_owned(),
+        ];
+
+        if !expectation_held {
+            prefixes.push(format!(
+                "The run was expected to {:?}, but did not.",
+                expected
+            ));
+            prefixes.push("".to_owned());
+        } else {
+            prefixes.push(format!(
+                "The run was expected to {:?}, and did.",
+                expected
+            ));
+            prefixes.push("".to_owned());
+        }
+
+        let mut suffixes = vec![
+            "".to_owned(),
+            format!("{} out of {} required lines matched.",
+                    (total_requirements - missed_requirements),
+                    total_requirements
+            ),
+            "".to_owned(),
+        ];
+
+        for expected_line in requirements_held {
+            suffixes.push(format!(" - {:?}", expected_line));
+        }
+        suffixes.push("".to_owned());
+
+        let output_blocks: Vec<Vec<String>> = vec![
+            prefixes,
+            vec![buildlog, "".to_owned()],
+            suffixes,
+        ];
+
+        let output_blocks_strings: Vec<String> =
+            output_blocks
+            .into_iter()
+            .map(|lines| lines.join("\n"))
+            .collect();
+
+        let output: String = output_blocks_strings
+            .join("\n");
+
+        if expectation_held && missed_requirements == 0 {
+        } else {
+            panic!(output);
+        }
+    }
+
+    use super::*;
+    use std::io::BufReader;
+    use std::io::BufRead;
+    use std::path::PathBuf;
+    use std::env;
+
+    #[test]
+    fn safely_build_attrs_success() {
+        let nix = nix();
+
+        let ret: Result<File,File>  = nix.safely_build_attrs(
+            build_path().as_path(),
+            "default.nix",
+            vec![String::from("success")]
+        );
+
+        assert_run(ret, Expect::Pass, vec![
+            "-success.drv",
+            "building path(s)",
+            "hi",
+            "-success"
+        ]);
+    }
+
+    #[test]
+    fn safely_build_attrs_failure() {
+        let nix = nix();
+
+        let ret: Result<File,File>  = nix.safely_build_attrs(
+            build_path().as_path(),
+            "default.nix",
+            vec![String::from("failed")]
+        );
+
+        assert_run(ret, Expect::Fail, vec![
+            "-failed.drv",
+            "building path(s)",
+            "hi",
+            "failed to produce output path"
+        ]);
+    }
+
+    #[test]
+    fn strict_sandboxing() {
+        let ret: Result<File,File>  = nix().safely_build_attrs(
+            build_path().as_path(),
+            "default.nix",
+            vec![String::from("sandbox-violation")]
+        );
+
+        assert_run(ret, Expect::Fail, vec![
+            "error: while evaluating the attribute",
+            "access to path",
+            "is forbidden in restricted mode"
+        ]);
+    }
+
+
+    #[test]
+    fn instantiation() {
+        let ret: Result<File,File>  = nix().safely(
+            "nix-instantiate",
+            passing_eval_path().as_path(),
+            vec![],
+            true
+        );
+
+        assert_run(ret, Expect::Pass, vec![
+            "the result might be removed by the garbage collector",
+            "-failed.drv",
+            "-success.drv"
+        ]);
+    }
 }
diff --git a/ofborg/src/tasks/build.rs b/ofborg/src/tasks/build.rs
index 8d3f376..64dce03 100644
--- a/ofborg/src/tasks/build.rs
+++ b/ofborg/src/tasks/build.rs
@@ -71,6 +71,8 @@ impl worker::SimpleWorker for BuildWorker {
             _ => "./default.nix"
         };
 
+        // Note: Don't change the system limiter until the system isn't
+        // hardcoded to x86_64-linux in the githubcommentfilter
         if buildfile == "./nixos/release.nix" && self.system != "x86_64-linux" {
             // NixOS jobs get routed to all builders, even though darwin
             // cannot build them.
diff --git a/ofborg/test-srcs/build/default.nix b/ofborg/test-srcs/build/default.nix
new file mode 100644
index 0000000..840aa12
--- /dev/null
+++ b/ofborg/test-srcs/build/default.nix
@@ -0,0 +1,27 @@
+let
+  nix = import <nix/config.nix>;
+in {
+  success = derivation {
+    name = "success";
+    system = builtins.currentSystem;
+    builder = nix.shell;
+    args = [
+      "-c"
+      "echo hi; echo ${toString builtins.currentTime} > $out" ];
+  };
+
+  failed = derivation {
+    name = "failed";
+    system = builtins.currentSystem;
+    builder = nix.shell;
+    args = [
+      "-c"
+      "echo hi; echo ${toString builtins.currentTime}" ];
+  };
+
+  sandbox-violation = derivation {
+    name = "sandbox-violation";
+    system = builtins.currentSystem;
+    builder = ./../../src;
+  };
+}
diff --git a/ofborg/test-srcs/build/succeed.sh b/ofborg/test-srcs/build/succeed.sh
new file mode 100644
index 0000000..7ec52d0
--- /dev/null
+++ b/ofborg/test-srcs/build/succeed.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+echo "$@"
+echo hi
diff --git a/ofborg/test-srcs/eval/default.nix b/ofborg/test-srcs/eval/default.nix
new file mode 100644
index 0000000..35981f7
--- /dev/null
+++ b/ofborg/test-srcs/eval/default.nix
@@ -0,0 +1,21 @@
+let
+  nix = import <nix/config.nix>;
+in rec {
+  success = derivation {
+    name = "success";
+    system = builtins.currentSystem;
+    builder = nix.shell;
+    args = [
+      "-c"
+      "echo hi; echo ${toString builtins.currentTime} > $out" ];
+  };
+
+  failed = derivation {
+    name = "failed";
+    system = builtins.currentSystem;
+    builder = nix.shell;
+    args = [
+      "-c"
+      "echo hi; echo ${toString builtins.currentTime}; echo ${success}" ];
+  };
+}