2023-09-26 14:08.57: New job: Build Dockerfile using linux-x86_64 in
                                [https://github.com/ocurrent/opam-health-check.git#refs/heads/regroup-checks (81401c89f645629e242632610dabb14676185d8b)]
2023-09-26 14:08.57: Using cache hint "https://github.com/ocurrent/opam-health-check.git-Dockerfile"
2023-09-26 14:08.57: Connecting to build cluster…
2023-09-26 14:08.57: Waiting for resource in pool OCluster
2023-09-26 14:08.57: Waiting for worker…
2023-09-26 14:09.14: Got resource from pool OCluster
Building on phoebe.caelum.ci.dev
All commits already cached
HEAD is now at 81401c8 Allow to add extra environment variables
"Dockerfile" does not exist (in Dockerfile)
2023-09-26 14:09.15: Job failed: Failed: Build failed