shared-public-infra/modules/lix-bug-details-pls/0001-wip-complain-about-failing-goals-at-warn-level.patch

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From 96937c58232ad6eaa11d1370220101c3ce2d00c3 Mon Sep 17 00:00:00 2001
From: Jade Lovelace <lix@jade.fyi>
Date: Thu, 29 Aug 2024 23:04:39 -0700
Subject: [PATCH] wip: complain about failing goals at warn level
I want to fix the bug that appears here:
error: build of '/nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-nixos-test-driver-nix-copy-closure.drv' on 'ssh-ng://nix@epyc.infra.newtype.fr' failed: error: some dependencies of '/nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-nixos-test-driver-nix-copy-closure.drv' are missing
error: builder for '/nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-nixos-test-driver-nix-copy-closure.drv' failed with exit code 1
error: 1 dependencies of derivation '/nix/store/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb-vm-test-run-nix-copy-closure.drv' failed to build
However, this is conditional on nrFailed, and I cannot for the life of
me figure out *who* is failing and *why*.
Hopefully with these data I can narrow down why this bug is happening
Change-Id: I7dca71b1c8ac92e7cc40c47ab37c952a7673cf42
---
src/libstore/build/worker.cc | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/libstore/build/worker.cc b/src/libstore/build/worker.cc
index 1b4633e64..a93be28a6 100644
--- a/src/libstore/build/worker.cc
+++ b/src/libstore/build/worker.cc
@@ -160,7 +160,10 @@ void Worker::goalFinished(GoalPtr goal, Goal::Finished & f)
waiting->trace(fmt("waitee '%s' done; %d left", goal->name, waiting->waitees.size()));
- if (f.result != Goal::ecSuccess) ++waiting->nrFailed;
+ if (f.result != Goal::ecSuccess) {
+ ++waiting->nrFailed;
+ warn("Waiter %s experienced non-success of waitee %s with result %d", waiting->getName(), goal->getName(), f.result);
+ }
if (f.result == Goal::ecNoSubstituters) ++waiting->nrNoSubstituters;
if (f.result == Goal::ecIncompleteClosure) ++waiting->nrIncompleteClosure;
--
2.44.1