2026-06-27 23:12.13: New job: Build using linux-s390x in
                                []
2026-06-27 23:12.13: Will push staging image to ocurrent/opam-staging:ubuntu-22.04-ocaml-5.5-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:a0f10d123c8b193e8016cd63038615b32e99ad4efd170695cb956c37af75cfdd
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" ]


2026-06-27 23:12.13: Using cache hint "5.5.0-s390x-ocurrent/opam-staging@sha256:a0f10d123c8b193e8016cd63038615b32e99ad4efd170695cb956c37af75cfdd"
2026-06-27 23:12.13: Waiting for resource in pool OCluster
2026-06-28 01:15.39: Waiting for worker…
2026-06-28 01:23.10: 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 1.1s

#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:a0f10d123c8b193e8016cd63038615b32e99ad4efd170695cb956c37af75cfdd
#4 DONE 0.0s

#5 [internal] load .dockerignore
#5 transferring context:
#5 transferring context: 2B 0.0s done
#5 DONE 0.2s

#6 [1/5] FROM docker.io/ocurrent/opam-staging@sha256:a0f10d123c8b193e8016cd63038615b32e99ad4efd170695cb956c37af75cfdd
#6 resolve docker.io/ocurrent/opam-staging@sha256:a0f10d123c8b193e8016cd63038615b32e99ad4efd170695cb956c37af75cfdd 0.4s done
#6 DONE 7.3s

#7 [2/8] RUN apt-get -y update
#7 1.055 Hit:1 http://ports.ubuntu.com/ubuntu-ports jammy InRelease
#7 1.132 Hit:2 http://ports.ubuntu.com/ubuntu-ports jammy-updates InRelease
#7 1.260 Hit:3 http://ports.ubuntu.com/ubuntu-ports jammy-backports InRelease
#7 1.372 Hit:4 http://ports.ubuntu.com/ubuntu-ports jammy-security InRelease
#7 2.337 Reading package lists...
#7 DONE 25.7s

#8 [3/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
#8 2.413 Reading package lists...
#8 3.580 Building dependency tree...
#8 3.684 Reading state information...
#8 3.684 Calculating upgrade...
#8 3.783 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
#8 DONE 4.2s

#9 [4/8] RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
#9 2.108 Reading package lists...
#9 2.850 Building dependency tree...
#9 2.914 Reading state information...
#9 3.059 The following NEW packages will be installed:
#9 3.059   libzstd-dev
#9 3.260 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
#9 3.260 Need to get 406 kB of archives.
#9 3.260 After this operation, 1521 kB of additional disk space will be used.
#9 3.260 Get:1 http://ports.ubuntu.com/ubuntu-ports jammy/main s390x libzstd-dev s390x 1.4.8+dfsg-3build1 [406 kB]
#9 4.545 debconf: delaying package configuration, since apt-utils is not installed
#9 4.774 Fetched 406 kB in 0s (907 kB/s)
#9 4.958 Selecting previously unselected package libzstd-dev:s390x.
#9 4.958 (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 ... 15397 files and directories currently installed.)
#9 5.409 Preparing to unpack .../libzstd-dev_1.4.8+dfsg-3build1_s390x.deb ...
#9 5.446 Unpacking libzstd-dev:s390x (1.4.8+dfsg-3build1) ...
#9 6.054 Setting up libzstd-dev:s390x (1.4.8+dfsg-3build1) ...
#9 DONE 6.6s

#10 [internal] load build context
#10 transferring context: 663B done
#10 DONE 0.5s

#11 [5/8] RUN opam switch create 5.5 --packages=ocaml-base-compiler.5.5.0
#11 1.416 
#11 1.416 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#11 1.416 Switch invariant: ["ocaml-base-compiler" {= "5.5.0"}]
#11 8.007 
#11 8.007 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#11 9.261 -> installed base-bigarray.base
#11 9.261 -> installed base-threads.base
#11 9.369 -> installed base-unix.base
#11 9.499 -> installed compiler-cloning.enabled
#11 9.524 -> installed ocaml-options-vanilla.1
#11 9.539 -> retrieved ocaml.5.5.0  (https://opam.ocaml.org/cache)
#11 10.19 -> retrieved ocaml-compiler.5.5.0  (https://opam.ocaml.org/cache)
#11 299.4 -> installed ocaml-compiler.5.5.0
#11 299.4 -> installed ocaml-base-compiler.5.5.0
#11 299.6 -> installed ocaml.5.5.0
#11 299.7 -> installed base-domains.base
#11 299.7 -> installed base-effects.base
#11 299.7 -> installed base-nnp.base
#11 299.9 Done.
#11 299.9 
#11 299.9 <><> ocaml-compiler.5.5.0 installed successfully ><><><><><><><><><><><><><><><>
#11 299.9 => This switch had to be compiled from sources, but future switches with the 🐌
#11 299.9    same compiler version and configuration should assemble instantly.
#11 299.9 # Run eval $(opam env --switch=5.5) to update the current shell environment
#11 DONE 316.9s

#12 [6/8] RUN opam pin add -k version ocaml-base-compiler 5.5.0
#12 1.037 ocaml-base-compiler is now pinned to version 5.5.0
#12 1.037 
#12 7.254 Already up-to-date.
#12 7.254 Nothing to do.
#12 7.256 # Run eval $(opam env) to update the current shell environment
#12 DONE 8.7s

#13 [7/8] RUN opam install -y opam-depext
#13 7.526 The following actions will be performed:
#13 7.526   - install opam-depext 1.2.3
#13 7.526 
#13 7.526 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#13 8.404 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#13 12.96 -> installed opam-depext.1.2.3
#13 12.96 Done.
#13 12.96 
#13 12.96 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#13 12.96 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#13 12.96 # Run eval $(opam env) to update the current shell environment
#13 DONE 15.1s

#14 [8/8] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#14 DONE 0.3s

#15 exporting to image
#15 exporting layers
#15 exporting layers 1.6s done
#15 writing image sha256:16fb9f529dab06a6d0acd1bcde3acf22a46368f8f3e19ff14b76bc2ec215eaa7
#15 writing image sha256:16fb9f529dab06a6d0acd1bcde3acf22a46368f8f3e19ff14b76bc2ec215eaa7 done
#15 DONE 1.6s

 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 "sha256:16fb9f529dab06a6d0acd1bcde3acf22a46368f8f3e19ff14b76bc2ec215eaa7" to "ocurrent/opam-staging:ubuntu-22.04-ocaml-5.5-s390x" as user "ocurrentbuilder"
Login Succeeded
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Job succeeded
2026-06-28 01:29.34: Job succeeded