All CI builds fail on `master` (.gitlab/ci.sh: line 572: CI_MERGE_REQUEST_SOURCE_BRANCH_NAME: unbound variable)
Every CI job on master
currently fails due to this error. Here is a recent example from hadrian-ghc-in-ghci
(although it affects other jobs as well, such as lint-base
):
.gitlab/ci.sh: line 572: CI_MERGE_REQUEST_SOURCE_BRANCH_NAME: unbound variable
My guess is that this is an environment variable which is only defined in the context of a GitLab merge request, which is why the issue only surfaces on master
on not on MR jobs.
This started to occur after !5500 (closed). cc'ing @mpickering.