2026-06-06 07:09.09: New job: Build using linux-s390x in
                                []
2026-06-06 07:09.09: Will push staging image to ocurrent/opam-staging:ubuntu-25.04-ocaml-5.3-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:38a91c7577c939f7cc99186ad5619e7d0358dd47754905cbc31be075f9d4f460
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 5.3 --packages=ocaml-base-compiler.5.3.0
RUN opam pin add -k version ocaml-base-compiler 5.3.0
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-06-06 07:09.09: Using cache hint "5.3.0-s390x-ocurrent/opam-staging@sha256:38a91c7577c939f7cc99186ad5619e7d0358dd47754905cbc31be075f9d4f460"
2026-06-06 13:07.15: Waiting for worker…
2026-06-06 13:07.15: 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: 663B done
#1 DONE 0.1s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.2s

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

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:38a91c7577c939f7cc99186ad5619e7d0358dd47754905cbc31be075f9d4f460
#4 DONE 0.0s

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

#6 [1/8] FROM docker.io/ocurrent/opam-staging@sha256:38a91c7577c939f7cc99186ad5619e7d0358dd47754905cbc31be075f9d4f460
#6 CACHED

#7 [2/8] RUN apt-get -y update
#7 0.589 Hit:1 http://ports.ubuntu.com/ubuntu-ports plucky InRelease
#7 0.689 Hit:2 http://ports.ubuntu.com/ubuntu-ports plucky-updates InRelease
#7 0.802 Hit:3 http://ports.ubuntu.com/ubuntu-ports plucky-backports InRelease
#7 0.914 Hit:4 http://ports.ubuntu.com/ubuntu-ports plucky-security InRelease
#7 0.929 Reading package lists...
#7 DONE 1.8s

#8 [3/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
#8 0.468 Reading package lists...
#8 1.264 Building dependency tree...
#8 1.362 Reading state information...
#8 1.399 Calculating upgrade...
#8 1.578 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
#8 DONE 1.6s

#9 [4/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
#9 0.562 Reading package lists...
#9 1.312 Building dependency tree...
#9 1.406 Reading state information...
#9 1.578 The following NEW packages will be installed:
#9 1.578   libzstd-dev
#9 1.915 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
#9 1.915 Need to get 408 kB of archives.
#9 1.915 After this operation, 1422 kB of additional disk space will be used.
#9 1.915 Get:1 http://ports.ubuntu.com/ubuntu-ports plucky/main s390x libzstd-dev s390x 1.5.6+dfsg-2 [408 kB]
#9 3.643 Fetched 408 kB in 1s (455 kB/s)
#9 3.678 Selecting previously unselected package libzstd-dev:s390x.
#9 3.678 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 16261 files and directories currently installed.)
#9 3.842 Preparing to unpack .../libzstd-dev_1.5.6+dfsg-2_s390x.deb ...
#9 3.858 Unpacking libzstd-dev:s390x (1.5.6+dfsg-2) ...
#9 3.935 Setting up libzstd-dev:s390x (1.5.6+dfsg-2) ...
#9 DONE 4.2s

#10 [internal] load build context
#10 transferring context: 663B done
#10 DONE 0.1s

#11 [5/8] RUN opam switch create 5.3 --packages=ocaml-base-compiler.5.3.0
#11 0.896 
#11 0.896 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#11 0.896 Switch invariant: ["ocaml-base-compiler" {= "5.3.0"}]
#11 6.999 
#11 6.999 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#11 8.094 -> installed base-bigarray.base
#11 8.095 -> installed base-threads.base
#11 8.095 -> installed base-unix.base
#11 8.107 -> installed ocaml-options-vanilla.1
#11 8.577 -> retrieved ocaml-config.3  (2 extra sources)
#11 8.922 -> retrieved ocaml-compiler.5.3.0  (https://opam.ocaml.org/cache)
#11 204.0 -> installed ocaml-compiler.5.3.0
#11 204.0 -> installed ocaml-base-compiler.5.3.0
#11 204.0 -> installed ocaml-config.3
#11 204.1 -> installed ocaml.5.3.0
#11 204.1 -> installed base-domains.base
#11 204.1 -> installed base-effects.base
#11 204.1 -> installed base-nnp.base
#11 204.3 Done.
#11 204.3 # Run eval $(opam env --switch=5.3) to update the current shell environment
#11 DONE 208.2s

#12 [6/8] RUN opam pin add -k version ocaml-base-compiler 5.3.0
#12 0.626 ocaml-base-compiler is now pinned to version 5.3.0
#12 0.626 
#12 6.174 No package build needed.
#12 6.174 Nothing to do.
#12 6.174 # Run eval $(opam env) to update the current shell environment
#12 DONE 6.2s

#13 [7/8] RUN opam install -y opam-depext
#13 6.475 The following actions will be performed:
#13 6.475   - install opam-depext 1.2.3
#13 6.475 
#13 6.475 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#13 7.125 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#13 9.554 -> installed opam-depext.1.2.3
#13 9.560 Done.
#13 9.561 
#13 9.561 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#13 9.561 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#13 9.561 # Run eval $(opam env) to update the current shell environment
#13 DONE 10.5s

#14 [8/8] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#14 DONE 0.1s

#15 exporting to image
#15 exporting layers
#15 exporting layers 1.0s done
#15 writing image sha256:ca3565edab7abe9d5412a60f3be5f7aa7aeb7c6a74ade0e30cdd40a9528a7eda
#15 writing image sha256:ca3565edab7abe9d5412a60f3be5f7aa7aeb7c6a74ade0e30cdd40a9528a7eda done
#15 DONE 1.0s

 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:ca3565edab7abe9d5412a60f3be5f7aa7aeb7c6a74ade0e30cdd40a9528a7eda" to "ocurrent/opam-staging:ubuntu-25.04-ocaml-5.3-s390x" as user "ocurrentbuilder"
Login Succeeded
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Job succeeded
2026-06-06 13:11.32: Job succeeded