2026-06-27 23:13.52: New job: Build using linux-s390x in
                                []
2026-06-27 23:13.52: Will push staging image to ocurrent/opam-staging:debian-13-ocaml-5.5-no-flat-float-array-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:fe5bda8b21f5d07ddd78330eae0244dba9353767bcd2b30b4fcdfe380e1e5ce8
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-variants.5.5.0+options,ocaml-options-only-no-flat-float-array
RUN opam pin add -k version ocaml-variants 5.5.0+options
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-06-27 23:13.52: Using cache hint "5.5.0+no-flat-float-array-s390x-ocurrent/opam-staging@sha256:fe5bda8b21f5d07ddd78330eae0244dba9353767bcd2b30b4fcdfe380e1e5ce8"
2026-06-27 23:13.52: Waiting for resource in pool OCluster
2026-06-28 02:05.55: Waiting for worker…
2026-06-28 02:11.35: 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: 708B done
#1 DONE 0.3s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.4s

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

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:fe5bda8b21f5d07ddd78330eae0244dba9353767bcd2b30b4fcdfe380e1e5ce8
#4 DONE 0.0s

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

#6 [1/8] FROM docker.io/ocurrent/opam-staging@sha256:fe5bda8b21f5d07ddd78330eae0244dba9353767bcd2b30b4fcdfe380e1e5ce8
#6 resolve docker.io/ocurrent/opam-staging@sha256:fe5bda8b21f5d07ddd78330eae0244dba9353767bcd2b30b4fcdfe380e1e5ce8 0.9s done
#6 DONE 0.9s

#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: 708B done
#10 DONE 0.4s

#11 [5/8] RUN opam switch create 5.5 --packages=ocaml-variants.5.5.0+options,ocaml-options-only-no-flat-float-array
#11 2.492 
#11 2.492 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#11 2.492 Switch invariant: [
#11 2.492   "ocaml-variants" {= "5.5.0+options"}
#11 2.492   "ocaml-options-only-no-flat-float-array"
#11 2.492 ]
#11 10.16 
#11 10.16 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#11 12.77 -> installed base-bigarray.base
#11 12.77 -> installed base-threads.base
#11 12.78 -> installed base-unix.base
#11 12.79 -> installed compiler-cloning.enabled
#11 12.79 -> installed ocaml-option-bytecode-only.1
#11 12.79 -> installed ocaml-option-no-flat-float-array.1
#11 12.79 -> installed ocaml-options-only-no-flat-float-array.1+bytecode-only
#11 12.85 -> retrieved ocaml.5.5.0  (https://opam.ocaml.org/cache)
#11 13.14 -> retrieved ocaml-compiler.5.5.0  (https://opam.ocaml.org/cache)
#11 222.1 -> installed ocaml-compiler.5.5.0
#11 222.1 -> installed ocaml-variants.5.5.0+options
#11 222.2 -> installed ocaml.5.5.0
#11 222.2 -> installed base-domains.base
#11 222.3 -> installed base-effects.base
#11 222.3 -> installed base-nnp.base
#11 222.7 Done.
#11 222.7 
#11 222.7 <><> ocaml-compiler.5.5.0 installed successfully ><><><><><><><><><><><><><><><>
#11 222.7 => This switch had to be compiled from sources, but future switches with the 🐌
#11 222.7    same compiler version and configuration should assemble instantly.
#11 222.7 # Run eval $(opam env --switch=5.5) to update the current shell environment
#11 DONE 238.4s

#12 [6/8] RUN opam pin add -k version ocaml-variants 5.5.0+options
#12 2.125 ocaml-variants is now pinned to version 5.5.0+options
#12 2.125 
#12 10.06 No package build needed.
#12 10.06 Nothing to do.
#12 10.06 # Run eval $(opam env) to update the current shell environment
#12 DONE 23.8s

#13 [7/8] RUN opam install -y opam-depext
#13 11.39 The following actions will be performed:
#13 11.39   - install opam-depext 1.2.3
#13 11.39 
#13 11.39 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#13 12.17 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#13 31.26 -> installed opam-depext.1.2.3
#13 31.29 Done.
#13 31.29 
#13 31.29 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#13 31.29 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#13 31.29 # Run eval $(opam env) to update the current shell environment
#13 DONE 44.1s

#14 [8/8] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#14 DONE 1.0s

#15 exporting to image
#15 exporting layers
#15 exporting layers 7.3s done
#15 writing image sha256:b6901916574038f07e70f774e9b70663a346b344c260f639aa4d953e2a7ec119 0.0s done
#15 DONE 7.4s

 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:b6901916574038f07e70f774e9b70663a346b344c260f639aa4d953e2a7ec119" to "ocurrent/opam-staging:debian-13-ocaml-5.5-no-flat-float-array-s390x" as user "ocurrentbuilder"
Login Succeeded
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debian-13-ocaml-5.5-no-flat-float-array-s390x: digest: sha256:20fd8a74e8de53a0bd73466fe2b6f4b9242933aedfa403ff66decbe91296ca58 size: 10120
Job succeeded
2026-06-28 02:17.48: Job succeeded