2026-07-25 19:02.30: New job: Build using linux-s390x in
                                []
2026-07-25 19:02.30: Will push staging image to ocurrent/opam-staging:ubuntu-25.04-ocaml-5.4-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:25f517776b333e6c0beabb7f2391b32b0b32e2788fb35b5b08d1ef62fa0c3a8f
ENV OPAMYES="1" OPAMCONFIRMLEVEL="unsafe-yes" OPAMERRLOGLEN="0" OPAMPRECISETRACKING="1"
USER root
RUN apt-get -y update
RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
USER opam
RUN opam switch create 5.4 --packages=ocaml-base-compiler.5.4.1
RUN opam pin add -k version ocaml-base-compiler 5.4.1
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-07-25 19:02.30: Using cache hint "5.4.1-s390x-ocurrent/opam-staging@sha256:25f517776b333e6c0beabb7f2391b32b0b32e2788fb35b5b08d1ef62fa0c3a8f"
2026-07-25 19:02.30: Waiting for resource in pool OCluster
2026-07-27 08:17.12: Waiting for worker…
2026-07-27 10:57.05: 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: 663B 0.0s done
#1 DONE 0.6s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.7s

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

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:25f517776b333e6c0beabb7f2391b32b0b32e2788fb35b5b08d1ef62fa0c3a8f
#4 DONE 1.2s

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

#6 [1/8] FROM docker.io/ocurrent/opam-staging@sha256:25f517776b333e6c0beabb7f2391b32b0b32e2788fb35b5b08d1ef62fa0c3a8f
#6 DONE 0.0s

#7 [2/8] RUN apt-get -y update
#7 CACHED

#8 [3/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
#8 CACHED

#9 [4/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
#9 CACHED

#10 [internal] load build context
#10 transferring context: 663B done
#10 DONE 0.2s

#11 [5/8] RUN opam switch create 5.4 --packages=ocaml-base-compiler.5.4.1
#11 2.005 
#11 2.005 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#11 2.005 Switch invariant: ["ocaml-base-compiler" {= "5.4.1"}]
#11 8.138 
#11 8.138 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#11 10.82 -> installed base-bigarray.base
#11 10.82 -> installed base-threads.base
#11 10.83 -> installed base-unix.base
#11 10.83 -> installed ocaml-options-vanilla.1
#11 11.24 -> retrieved ocaml-config.3  (2 extra sources)
#11 11.59 -> retrieved ocaml-compiler.5.4.1  (https://opam.ocaml.org/cache)
#11 211.2 -> installed ocaml-compiler.5.4.1
#11 211.2 -> installed ocaml-base-compiler.5.4.1
#11 211.2 -> installed ocaml-config.3
#11 211.4 -> installed ocaml.5.4.1
#11 211.4 -> installed base-domains.base
#11 211.4 -> installed base-effects.base
#11 211.4 -> installed base-nnp.base
#11 211.5 Done.
#11 211.5 # Run eval $(opam env --switch=5.4) to update the current shell environment
#11 DONE 218.3s

#12 [6/8] RUN opam pin add -k version ocaml-base-compiler 5.4.1
#12 0.888 ocaml-base-compiler is now pinned to version 5.4.1
#12 0.888 
#12 7.168 No package build needed.
#12 7.168 Nothing to do.
#12 7.168 # Run eval $(opam env) to update the current shell environment
#12 DONE 7.8s

#13 [7/8] RUN opam install -y opam-depext
#13 6.681 The following actions will be performed:
#13 6.681   - install opam-depext 1.2.3
#13 6.682 
#13 6.682 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#13 7.456 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#13 9.970 -> installed opam-depext.1.2.3
#13 9.972 Done.
#13 9.972 
#13 9.972 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#13 9.972 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#13 9.972 # Run eval $(opam env) to update the current shell environment
#13 DONE 11.1s

#14 [8/8] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#14 DONE 0.2s

#15 exporting to image
#15 exporting layers
#15 exporting layers 6.9s done
#15 writing image sha256:b2e78eb74ca4f097093acf8d4a389eeaf4ba31fb85c0d9fcc298724eb8018824 done
#15 DONE 7.0s

 1 warning found (use docker --debug to expand):
 - JSONArgsRecommended: JSON arguments recommended for CMD to prevent unintended behavior related to OS signals (line 14)
Pushing "sha256:b2e78eb74ca4f097093acf8d4a389eeaf4ba31fb85c0d9fcc298724eb8018824" to "ocurrent/opam-staging:ubuntu-25.04-ocaml-5.4-s390x" as user "ocurrentbuilder"
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Job succeeded
2026-07-27 11:01.48: Job succeeded