2026-07-25 21:35.24: New job: Build using linux-s390x in
                                []
2026-07-25 21:35.24: Will push staging image to ocurrent/opam-staging:debian-12-ocaml-4.11-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
ENV OPAMYES="1" OPAMCONFIRMLEVEL="unsafe-yes" OPAMERRLOGLEN="0" OPAMPRECISETRACKING="1"
RUN opam switch create 4.11 --packages=ocaml-base-compiler.4.11.2
RUN opam pin add -k version ocaml-base-compiler 4.11.2
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-07-25 21:35.24: Using cache hint "4.11.2-s390x-ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e"
2026-07-25 21:35.24: Waiting for resource in pool OCluster
2026-07-27 18:14.40: Waiting for worker…
2026-07-27 18:18.18: 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:
#1 transferring dockerfile: 504B done
#1 DONE 0.5s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.3s

#3 docker-image://docker.io/docker/dockerfile:1@sha256:87999aa3d42bdc6bea60565083ee17e86d1f3339802f543c0d03998580f9cb89
#3 CACHED

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
#4 DONE 0.0s

#5 [internal] load .dockerignore
#5 transferring context:
#5 transferring context: 2B done
#5 DONE 0.3s

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

#7 [1/5] FROM docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
#7 resolve docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
#7 resolve docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e 0.4s done
#7 DONE 0.4s

#7 [1/5] FROM docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
#7 DONE 1.9s

#8 [2/5] RUN opam switch create 4.11 --packages=ocaml-base-compiler.4.11.2
#8 1.065 
#8 1.065 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#8 1.065 Switch invariant: ["ocaml-base-compiler" {= "4.11.2"}]
#8 6.488 
#8 6.488 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#8 9.489 -> installed base-bigarray.base
#8 9.490 -> installed base-threads.base
#8 9.502 -> installed base-unix.base
#8 9.901 -> retrieved ocaml-config.1  (2 extra sources)
#8 10.50 -> retrieved ocaml-base-compiler.4.11.2  (https://opam.ocaml.org/cache)
#8 162.2 -> installed ocaml-base-compiler.4.11.2
#8 162.2 -> installed ocaml-config.1
#8 162.2 -> installed ocaml.4.11.2
#8 162.5 Done.
#8 162.5 # Run eval $(opam env --switch=4.11) to update the current shell environment
#8 DONE 169.0s

#9 [3/5] RUN opam pin add -k version ocaml-base-compiler 4.11.2
#9 0.711 ocaml-base-compiler is now pinned to version 4.11.2
#9 0.711 
#9 6.020 No package build needed.
#9 6.020 Nothing to do.
#9 6.032 # Run eval $(opam env) to update the current shell environment
#9 DONE 6.8s

#10 [4/5] RUN opam install -y opam-depext
#10 6.218 The following actions will be performed:
#10 6.218   - install opam-depext 1.2.3
#10 6.218 
#10 6.218 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#10 6.722 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#10 9.548 -> installed opam-depext.1.2.3
#10 9.551 Done.
#10 9.551 
#10 9.551 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#10 9.551 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#10 9.551 # Run eval $(opam env) to update the current shell environment
#10 DONE 11.2s

#11 [5/5] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#11 DONE 0.2s

#12 exporting to image
#12 exporting layers
#12 exporting layers 1.1s done
#12 writing image sha256:7a3613bf622308cce6ee8bd049d8fd3ee684a7c011d52f0e52f149799668581e done
#12 DONE 1.1s

 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 "sha256:7a3613bf622308cce6ee8bd049d8fd3ee684a7c011d52f0e52f149799668581e" to "ocurrent/opam-staging:debian-12-ocaml-4.11-s390x" as user "ocurrentbuilder"
Login Succeeded
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Job succeeded
2026-07-27 18:22.06: Job succeeded