2026-07-25 12:51.19: New job: Build using linux-s390x in
                                []
2026-07-25 12:51.19: Will push staging image to ocurrent/opam-staging:ubuntu-25.10-ocaml-5.4-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a
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 12:51.19: Using cache hint "5.4.1-s390x-ocurrent/opam-staging@sha256:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a"
2026-07-25 12:51.19: Waiting for resource in pool OCluster
2026-07-26 14:40.46: Waiting for worker…
2026-07-26 19:25.42: 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 0.1s done
#1 DONE 1.2s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 1.1s

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

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a
#4 DONE 0.3s

#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:a4058f4cb5a8e5f48cc74cf283143c11281eac28e6b7485992ee15667062b46a
#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 4.498 
#11 4.498 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#11 4.498 Switch invariant: ["ocaml-base-compiler" {= "5.4.1"}]
#11 14.49 
#11 14.49 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#11 24.09 -> installed base-bigarray.base
#11 24.09 -> installed base-threads.base
#11 24.09 -> installed base-unix.base
#11 24.10 -> installed ocaml-options-vanilla.1
#11 25.55 -> retrieved ocaml-config.3  (2 extra sources)
#11 25.95 -> retrieved ocaml-compiler.5.4.1  (https://opam.ocaml.org/cache)
#11 287.9 -> installed ocaml-compiler.5.4.1
#11 287.9 -> installed ocaml-base-compiler.5.4.1
#11 287.9 -> installed ocaml-config.3
#11 288.0 -> installed ocaml.5.4.1
#11 288.0 -> installed base-domains.base
#11 288.1 -> installed base-effects.base
#11 288.1 -> installed base-nnp.base
#11 288.4 Done.
#11 288.4 # Run eval $(opam env --switch=5.4) to update the current shell environment
#11 DONE 314.8s

#12 [6/8] RUN opam pin add -k version ocaml-base-compiler 5.4.1
#12 4.707 ocaml-base-compiler is now pinned to version 5.4.1
#12 4.707 
#12 14.95 No package build needed.
#12 14.95 Nothing to do.
#12 14.95 # Run eval $(opam env) to update the current shell environment
#12 DONE 15.8s

#13 [7/8] RUN opam install -y opam-depext
#13 11.81 The following actions will be performed:
#13 11.81   - install opam-depext 1.2.3
#13 11.81 
#13 11.81 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#13 12.52 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#13 19.48 -> installed opam-depext.1.2.3
#13 19.50 Done.
#13 19.50 
#13 19.50 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#13 19.50 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#13 19.50 # Run eval $(opam env) to update the current shell environment
#13 DONE 21.8s

#14 [8/8] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#14 DONE 1.6s

#15 exporting to image
#15 exporting layers
#15 exporting layers 10.3s done
#15 writing image sha256:3ab57d6f4b168ec9078d2ddb5b24e53f7519e603d4c3a8dd5367a42f5bb96fe7 0.0s done
#15 DONE 10.5s

 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 "sha256:3ab57d6f4b168ec9078d2ddb5b24e53f7519e603d4c3a8dd5367a42f5bb96fe7" to "ocurrent/opam-staging:ubuntu-25.10-ocaml-5.4-s390x" as user "ocurrentbuilder"
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Job succeeded
2026-07-26 19:32.30: Job succeeded