Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC

Commits:

• 604eb43c
  by Simon Jakobi at 2026-09-07T19:44:15-04:00

  Hadrian: don't capture the testsuite driver's output (#27780)
  
  a6061455d54 switched the Testsuite RunTest case from Shake's cmd to the
  cmd' wrapper. cmd' always captures stdout and stderr, and since the
  caller asks for Exit, it returns without dumping what it captured. As a
  result the testsuite output no longer appears in CI job logs: failures,
  performance metrics and the summary were lost with the job.
  
  Use cmdExe, the uncaptured cmd, as the other plain-cmd sites in that
  commit do.
  
  Fixes #27780.
  
  Assisted-by: Claude Fable 5.1
  

1 changed file:

• hadrian/src/Builder.hs

Changes:

                 -- RunTest produces a very large amount of (colorised) output;

                 -- Don't attempt to capture it.

                 Testsuite RunTest -> do

-                  Exit code <- cmd' prog buildArgs buildOptions

+                  Exit code <- cmdExe prog buildArgs buildOptions

                   when (code /= ExitSuccess) $ do

                     fail "tests failed"