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-5.5-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 5.5 --packages=ocaml-base-compiler.5.5.0
RUN opam pin add -k version ocaml-base-compiler 5.5.0
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 "5.5.0-s390x-ocurrent/opam-staging@sha256:25f517776b333e6c0beabb7f2391b32b0b32e2788fb35b5b08d1ef62fa0c3a8f"
2026-07-25 19:02.30: Waiting for resource in pool OCluster
2026-07-27 09:19.57: Waiting for worker…
2026-07-27 10:57.07: 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 done
#1 DONE 1.0s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 2.1s

#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 0.1s

#5 [internal] load .dockerignore
#5 transferring context:
#5 transferring context: 2B done
#5 DONE 0.2s

#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 5.5 --packages=ocaml-base-compiler.5.5.0
#11 1.872 
#11 1.872 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#11 1.872 Switch invariant: ["ocaml-base-compiler" {= "5.5.0"}]
#11 8.057 
#11 8.057 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#11 10.69 -> installed base-bigarray.base
#11 10.69 -> installed base-threads.base
#11 10.70 -> installed base-unix.base
#11 10.70 -> installed compiler-cloning.enabled
#11 10.71 -> installed ocaml-options-vanilla.1
#11 10.74 -> retrieved ocaml.5.5.0  (https://opam.ocaml.org/cache)
#11 10.91 -> retrieved ocaml-compiler.5.5.0  (https://opam.ocaml.org/cache)
#11 221.2 -> installed ocaml-compiler.5.5.0
#11 221.3 -> installed ocaml-base-compiler.5.5.0
#11 221.4 -> installed ocaml.5.5.0
#11 221.4 -> installed base-domains.base
#11 221.4 -> installed base-effects.base
#11 221.4 -> installed base-nnp.base
#11 221.5 Done.
#11 221.5 
#11 221.5 <><> ocaml-compiler.5.5.0 installed successfully ><><><><><><><><><><><><><><><>
#11 221.5 => This switch had to be compiled from sources, but future switches with the 🐌
#11 221.5    same compiler version and configuration should assemble instantly.
#11 221.5 # Run eval $(opam env --switch=5.5) to update the current shell environment
#11 DONE 226.1s

#12 [6/8] RUN opam pin add -k version ocaml-base-compiler 5.5.0
#12 0.878 ocaml-base-compiler is now pinned to version 5.5.0
#12 0.878 
#12 6.601 Already up-to-date.
#12 6.601 Nothing to do.
#12 6.601 # Run eval $(opam env) to update the current shell environment
#12 DONE 6.7s

#13 [7/8] RUN opam install -y opam-depext
#13 6.661 The following actions will be performed:
#13 6.661   - install opam-depext 1.2.3
#13 6.661 
#13 6.661 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#13 7.272 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#13 8.708 -> installed opam-depext.1.2.3
#13 8.714 Done.
#13 8.714 
#13 8.714 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#13 8.714 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#13 8.714 # Run eval $(opam env) to update the current shell environment
#13 DONE 9.8s

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

#15 exporting to image
#15 exporting layers
#15 exporting layers 2.1s done
#15 writing image sha256:37df03bfed57480e0faa455a18f0c86207262ee112296d2fc47f9d0a28e199cb done
#15 DONE 2.1s

 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 "sha256:37df03bfed57480e0faa455a18f0c86207262ee112296d2fc47f9d0a28e199cb" to "ocurrent/opam-staging:ubuntu-25.04-ocaml-5.5-s390x" as user "ocurrentbuilder"
Login Succeeded
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ubuntu-25.04-ocaml-5.5-s390x: digest: sha256:836a8d0c56e828be873a5c435d7c305a1bf85771c2e53cc9402be28b2935c9c5 size: 10128
Job succeeded
2026-07-27 11:02.09: Job succeeded