2026-04-05 02:26.57: New job: Build using linux-s390x in
                                []
2026-04-05 02:26.57: Will push staging image to ocurrent/opam-staging:debian-12-ocaml-4.12-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:33fe8e4bb7db614ceaf572d5fad1a2bed130c38b11a6fb684f21348acbc33ca6
ENV OPAMYES="1" OPAMCONFIRMLEVEL="unsafe-yes" OPAMERRLOGLEN="0" OPAMPRECISETRACKING="1"
RUN opam switch create 4.12 --packages=ocaml-base-compiler.4.12.1
RUN opam pin add -k version ocaml-base-compiler 4.12.1
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-04-05 02:26.57: Using cache hint "4.12.1-s390x-ocurrent/opam-staging@sha256:33fe8e4bb7db614ceaf572d5fad1a2bed130c38b11a6fb684f21348acbc33ca6"
2026-04-05 02:26.57: Waiting for resource in pool OCluster
2026-04-05 10:49.38: Waiting for worker…
2026-04-05 10:52.59: Got resource from pool OCluster
Building on s390x-worker-01.marist.ci.dev
WARNING: experimental flag squash is removed with BuildKit. You should squash inside build using a multi-stage Dockerfile for efficiency.
#0 building with "default" instance using docker driver

#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 504B done
#1 DONE 0.1s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.1s

#3 docker-image://docker.io/docker/dockerfile:1@sha256:4a43a54dd1fedceb30ba47e76cfcf2b47304f4161c0caeac2db1c61804ea3c91
#3 CACHED

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:33fe8e4bb7db614ceaf572d5fad1a2bed130c38b11a6fb684f21348acbc33ca6
#4 DONE 0.0s

#5 [internal] load .dockerignore
#5 transferring context:
#5 transferring context: 2B done
#5 DONE 0.1s

#6 [1/5] FROM docker.io/ocurrent/opam-staging@sha256:33fe8e4bb7db614ceaf572d5fad1a2bed130c38b11a6fb684f21348acbc33ca6
#6 CACHED

#7 [internal] load build context
#7 transferring context: 504B done
#7 DONE 0.1s

#8 [2/5] RUN opam switch create 4.12 --packages=ocaml-base-compiler.4.12.1
#8 3.589 
#8 3.589 <><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#8 3.936 [ocaml-config.2/gen_ocaml_config.ml.in] downloaded from https://opam.ocaml.org/cache
#8 4.265 [ocaml-config.2/ocaml-config.install] downloaded from https://opam.ocaml.org/cache
#8 4.761 [ocaml-base-compiler.4.12.1] downloaded from cache at https://opam.ocaml.org/cache
#8 5.371 [ocaml-base-compiler.4.12.1/alt-signal-stack.patch] downloaded from https://opam.ocaml.org/cache
#8 5.704 [ocaml-base-compiler.4.12.1/ocaml-base-compiler.install] downloaded from https://opam.ocaml.org/cache
#8 5.704 
#8 5.704 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#8 5.931 -> installed base-bigarray.base
#8 5.932 -> installed base-threads.base
#8 5.934 -> installed base-unix.base
#8 5.950 -> installed ocaml-options-vanilla.1
#8 147.8 -> installed ocaml-base-compiler.4.12.1
#8 147.9 -> installed ocaml-config.2
#8 147.9 -> installed ocaml.4.12.1
#8 148.2 Done.
#8 148.2 # Run eval $(opam env) to update the current shell environment
#8 DONE 153.1s

#9 [3/5] RUN opam pin add -k version ocaml-base-compiler 4.12.1
#9 0.840 ocaml-base-compiler is now pinned to version 4.12.1
#9 0.840 
#9 3.860 No package build needed.
#9 3.860 Nothing to do.
#9 3.860 # Run eval $(opam env) to update the current shell environment
#9 DONE 4.0s

#10 [4/5] RUN opam install -y opam-depext
#10 4.103 The following actions will be performed:
#10 4.103   - install opam-depext 1.2.3
#10 4.103 
#10 4.103 <><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#10 4.627 [opam-depext.1.2.3] downloaded from cache at https://opam.ocaml.org/cache
#10 4.645 
#10 4.645 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#10 6.213 -> installed opam-depext.1.2.3
#10 6.220 Done.
#10 6.220 # Run eval $(opam env) to update the current shell environment
#10 DONE 6.4s

#11 [5/5] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#11 DONE 0.1s

#12 exporting to image
#12 exporting layers
#12 exporting layers 2.4s done
#12 writing image sha256:b1bbb2c471ebe177031b78a16fe19c746a0f721bab9230d284dfaf05d553cc0f done
#12 DONE 2.4s

 1 warning found (use docker --debug to expand):
 - JSONArgsRecommended: JSON arguments recommended for CMD to prevent unintended behavior related to OS signals (line 9)
Pushing "sha256:b1bbb2c471ebe177031b78a16fe19c746a0f721bab9230d284dfaf05d553cc0f" to "ocurrent/opam-staging:debian-12-ocaml-4.12-s390x" as user "ocurrentbuilder"
Login Succeeded
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debian-12-ocaml-4.12-s390x: digest: sha256:d2e5ac9d40d45817563e56c7c23d5346d113f5717766902f9f0c735d41259b7b size: 9706
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Job succeeded
2026-04-05 10:56.23: Job succeeded