2026-07-25 21:35.24: New job: Build using linux-s390x in
                                []
2026-07-25 21:35.24: Will push staging image to ocurrent/opam-staging:debian-12-ocaml-5.6-s390x

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
RUN opam repo add beta git+https://github.com/ocaml/ocaml-beta-repository --set-default
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 5.6 --packages=ocaml-variants.5.6.0+trunk
RUN opam pin add -k version ocaml-variants 5.6.0+trunk
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-07-25 21:35.24: Using cache hint "5.6.0-s390x-ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e"
2026-07-25 21:35.24: Waiting for resource in pool OCluster
2026-07-27 18:22.49: Waiting for worker…
2026-07-27 18:26.52: 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: 753B done
#1 DONE 0.1s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.1s

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

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
#4 DONE 0.0s

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

#6 [1/5] FROM docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e
#6 resolve docker.io/ocurrent/opam-staging@sha256:d27f91b7a453549d0f64181e0a24018b024edf0dc852074a8991abbcff33793e 0.4s done
#6 DONE 1.9s

#7 [internal] load build context
#7 transferring context: 753B done
#7 DONE 0.1s

#8 [2/9] RUN opam repo add beta git+https://github.com/ocaml/ocaml-beta-repository --set-default
#8 1.192 [beta] Initialised
#8 DONE 1.7s

#9 [3/9] RUN apt-get -y update
#9 0.386 Hit:1 http://deb.debian.org/debian bookworm InRelease
#9 0.393 Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
#9 0.423 Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [34.8 kB]
#9 0.582 Fetched 90.2 kB in 0s (337 kB/s)
#9 0.582 Reading package lists...
#9 DONE 1.1s

#10 [4/9] RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
#10 0.379 Reading package lists...
#10 0.803 Building dependency tree...
#10 0.864 Reading state information...
#10 0.881 Calculating upgrade...
#10 0.980 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
#10 DONE 1.0s

#11 [5/9] RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
#11 0.392 Reading package lists...
#11 0.829 Building dependency tree...
#11 0.890 Reading state information...
#11 1.005 The following NEW packages will be installed:
#11 1.005   libzstd-dev
#11 1.072 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
#11 1.072 Need to get 315 kB of archives.
#11 1.072 After this operation, 1299 kB of additional disk space will be used.
#11 1.072 Get:1 http://deb.debian.org/debian bookworm/main s390x libzstd-dev s390x 1.5.4+dfsg2-5 [315 kB]
#11 1.241 debconf: delaying package configuration, since apt-utils is not installed
#11 1.269 Fetched 315 kB in 0s (2956 kB/s)
#11 1.294 Selecting previously unselected package libzstd-dev:s390x.
#11 1.294 (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 ... 18528 files and directories currently installed.)
#11 1.347 Preparing to unpack .../libzstd-dev_1.5.4+dfsg2-5_s390x.deb ...
#11 1.370 Unpacking libzstd-dev:s390x (1.5.4+dfsg2-5) ...
#11 1.440 Setting up libzstd-dev:s390x (1.5.4+dfsg2-5) ...
#11 DONE 1.6s

#12 [6/9] RUN opam switch create 5.6 --packages=ocaml-variants.5.6.0+trunk
#12 0.645 
#12 0.645 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#12 0.645 Switch invariant: ["ocaml-variants" {= "5.6.0+trunk"}]
#12 5.655 
#12 5.655 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#12 8.162 -> installed base-bigarray.base
#12 8.171 -> installed base-threads.base
#12 8.172 -> installed base-unix.base
#12 8.172 -> installed host-arch-s390x.1
#12 8.173 -> installed host-system-other.1
#12 8.183 -> retrieved ocaml.5.6.0  (https://opam.ocaml.org/cache)
#12 8.421 -> retrieved ocaml-compiler.5.6  (https://github.com/ocaml/ocaml/archive/trunk.tar.gz)
#12 198.3 -> installed ocaml-compiler.5.6
#12 198.3 -> installed ocaml-variants.5.6.0+trunk
#12 198.5 -> installed ocaml.5.6.0
#12 198.5 -> installed base-domains.base
#12 198.5 -> installed base-effects.base
#12 198.5 -> installed base-nnp.base
#12 198.6 Done.
#12 198.6 # Run eval $(opam env --switch=5.6) to update the current shell environment
#12 DONE 203.0s

#13 [7/9] RUN opam pin add -k version ocaml-variants 5.6.0+trunk
#13 0.770 ocaml-variants is now pinned to version 5.6.0+trunk
#13 0.770 
#13 5.995 Already up-to-date.
#13 5.995 Nothing to do.
#13 5.995 # Run eval $(opam env) to update the current shell environment
#13 DONE 6.1s

#14 [8/9] RUN opam install -y opam-depext
#14 6.054 The following actions will be performed:
#14 6.055   - install opam-depext 1.2.3
#14 6.055 
#14 6.055 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#14 6.552 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#14 9.375 -> installed opam-depext.1.2.3
#14 9.396 Done.
#14 9.396 
#14 9.396 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#14 9.396 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#14 9.396 # Run eval $(opam env) to update the current shell environment
#14 DONE 10.5s

#15 [9/9] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#15 DONE 0.2s

#16 exporting to image
#16 exporting layers
#16 exporting layers 1.1s done
#16 writing image sha256:b7890cdf3235aca39f604a8cf1c323172341e627ccb94c9d7d2aa2d234455684 done
#16 DONE 1.1s

 1 warning found (use docker --debug to expand):
 - JSONArgsRecommended: JSON arguments recommended for CMD to prevent unintended behavior related to OS signals (line 15)
Pushing "sha256:b7890cdf3235aca39f604a8cf1c323172341e627ccb94c9d7d2aa2d234455684" to "ocurrent/opam-staging:debian-12-ocaml-5.6-s390x" as user "ocurrentbuilder"
Login Succeeded
The push refers to repository [docker.io/ocurrent/opam-staging]
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debian-12-ocaml-5.6-s390x: digest: sha256:dc47eb3dbcac141d1466fff443d99046d69c762ca9d9b516443824d657a381c6 size: 10332
Job succeeded
2026-07-27 18:31.08: Job succeeded