2026-06-06 07:05.35: New job: Build using linux-arm64 in
                                []
2026-06-06 07:05.35: Will push staging image to ocurrent/opam-staging:debian-12-ocaml-5.5-beta1-arm64

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:4c0fb9ad2ff8a28756c417c3f6aa3bc2b3876b8824301f2b0f45395965ae2f47
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 5.5~beta1 --packages=ocaml-base-compiler.5.5.0~beta1
RUN opam pin add -k version ocaml-base-compiler 5.5.0~beta1
RUN opam install -y opam-depext
ENTRYPOINT [ "opam", "exec", "--" ]
CMD bash
COPY --link [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-06-06 07:05.35: Using cache hint "5.5.0~beta1-arm64-ocurrent/opam-staging@sha256:4c0fb9ad2ff8a28756c417c3f6aa3bc2b3876b8824301f2b0f45395965ae2f47"
2026-06-06 11:30.22: Waiting for worker…
2026-06-06 11:30.22: Got resource from pool OCluster
Building on molpadia.caelum.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: 769B done
#1 DONE 0.0s

#2 resolve image config for docker-image://docker.io/docker/dockerfile:1
#2 DONE 0.5s

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

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:4c0fb9ad2ff8a28756c417c3f6aa3bc2b3876b8824301f2b0f45395965ae2f47
#4 DONE 0.0s

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

#6 [1/9] FROM docker.io/ocurrent/opam-staging@sha256:4c0fb9ad2ff8a28756c417c3f6aa3bc2b3876b8824301f2b0f45395965ae2f47
#6 CACHED

#7 [internal] load build context
#7 transferring context: 769B done
#7 DONE 0.0s

#8 [2/9] RUN opam repo add beta git+https://github.com/ocaml/ocaml-beta-repository --set-default
#8 0.953 [beta] Initialised
#8 DONE 1.3s

#9 [3/9] RUN apt-get -y update
#9 0.326 Hit:1 http://deb.debian.org/debian bookworm InRelease
#9 0.326 Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
#9 0.342 Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
#9 0.669 Get:4 http://deb.debian.org/debian-security bookworm-security/main arm64 Packages [303 kB]
#9 0.737 Fetched 406 kB in 0s (895 kB/s)
#9 0.737 Reading package lists...
#9 DONE 1.3s

#10 [4/9] RUN DEBIAN_FRONTEND=noninteractive apt-get -y upgrade
#10 0.241 Reading package lists...
#10 0.789 Building dependency tree...
#10 0.951 Reading state information...
#10 0.988 Calculating upgrade...
#10 1.228 The following packages will be upgraded:
#10 1.229   linux-libc-dev
#10 1.303 1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
#10 1.303 Need to get 2248 kB of archives.
#10 1.303 After this operation, 1024 B of additional disk space will be used.
#10 1.303 Get:1 http://deb.debian.org/debian-security bookworm-security/main arm64 linux-libc-dev arm64 6.1.174-1 [2248 kB]
#10 1.567 debconf: delaying package configuration, since apt-utils is not installed
#10 1.609 Fetched 2248 kB in 0s (13.4 MB/s)
#10 1.632 (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 ... 18778 files and directories currently installed.)
#10 1.672 Preparing to unpack .../linux-libc-dev_6.1.174-1_arm64.deb ...
#10 1.674 Unpacking linux-libc-dev:arm64 (6.1.174-1) over (6.1.172-1) ...
#10 2.464 Setting up linux-libc-dev:arm64 (6.1.174-1) ...
#10 DONE 2.5s

#11 [5/9] RUN DEBIAN_FRONTEND=noninteractive apt-get -y install libzstd-dev
#11 0.218 Reading package lists...
#11 0.752 Building dependency tree...
#11 0.906 Reading state information...
#11 1.135 The following NEW packages will be installed:
#11 1.136   libzstd-dev
#11 1.175 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
#11 1.175 Need to get 317 kB of archives.
#11 1.175 After this operation, 1139 kB of additional disk space will be used.
#11 1.175 Get:1 http://deb.debian.org/debian bookworm/main arm64 libzstd-dev arm64 1.5.4+dfsg2-5 [317 kB]
#11 1.326 debconf: delaying package configuration, since apt-utils is not installed
#11 1.367 Fetched 317 kB in 0s (7585 kB/s)
#11 1.388 Selecting previously unselected package libzstd-dev:arm64.
#11 1.388 (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 ... 18778 files and directories currently installed.)
#11 1.403 Preparing to unpack .../libzstd-dev_1.5.4+dfsg2-5_arm64.deb ...
#11 1.404 Unpacking libzstd-dev:arm64 (1.5.4+dfsg2-5) ...
#11 1.455 Setting up libzstd-dev:arm64 (1.5.4+dfsg2-5) ...
#11 DONE 1.5s

#12 [6/9] RUN opam switch create 5.5~beta1 --packages=ocaml-base-compiler.5.5.0~beta1
#12 0.683 
#12 0.683 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#12 0.683 Switch invariant: ["ocaml-base-compiler" {= "5.5.0~beta1"}]
#12 6.495 
#12 6.495 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#12 9.189 -> installed base-bigarray.base
#12 9.190 -> installed base-threads.base
#12 9.192 -> installed base-unix.base
#12 9.205 -> installed compiler-cloning.enabled
#12 9.206 -> installed ocaml-options-vanilla.1
#12 9.225 -> retrieved ocaml.5.5.0  (https://opam.ocaml.org/cache)
#12 9.856 -> retrieved ocaml-compiler.5.5.0~beta1  (https://opam.ocaml.org/cache)
#12 125.4 -> installed ocaml-compiler.5.5.0~beta1
#12 125.4 -> installed ocaml-base-compiler.5.5.0~beta1
#12 125.5 -> installed ocaml.5.5.0
#12 125.5 -> installed base-domains.base
#12 125.6 -> installed base-effects.base
#12 125.6 -> installed base-nnp.base
#12 125.9 Done.
#12 125.9 
#12 125.9 <><> ocaml-compiler.5.5.0~beta1 installed successfully ><><><><><><><><><><><><>
#12 125.9 => This switch had to be compiled from sources, but future switches with the 🐌
#12 125.9    same compiler version and configuration should assemble instantly.
#12 125.9 # Run eval $(opam env --switch=5.5~beta1) to update the current shell environment
#12 DONE 127.8s

#13 [7/9] RUN opam pin add -k version ocaml-base-compiler 5.5.0~beta1
#13 0.607 ocaml-base-compiler is now pinned to version 5.5.0~beta1
#13 0.607 
#13 6.359 Already up-to-date.
#13 6.359 Nothing to do.
#13 6.359 # Run eval $(opam env) to update the current shell environment
#13 DONE 6.4s

#14 [8/9] RUN opam install -y opam-depext
#14 6.580 The following actions will be performed:
#14 6.580   - install opam-depext 1.2.3
#14 6.581 
#14 6.581 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#14 6.740 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#14 10.37 -> installed opam-depext.1.2.3
#14 10.38 Done.
#14 10.38 
#14 10.38 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#14 10.38 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#14 10.38 # Run eval $(opam env) to update the current shell environment
#14 DONE 11.8s

#15 [9/9] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#15 DONE 0.0s

#16 exporting to image
#16 exporting layers
#16 exporting layers 1.8s done
#16 writing image sha256:467376f458bbe7e95cd83235d3d2a0b8fa5bfc8b0cc66f76d24fd0a5c270a55a done
#16 DONE 1.8s

 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 "sha256:467376f458bbe7e95cd83235d3d2a0b8fa5bfc8b0cc66f76d24fd0a5c270a55a" to "ocurrent/opam-staging:debian-12-ocaml-5.5-beta1-arm64" as user "ocurrentbuilder"
Login Succeeded
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debian-12-ocaml-5.5-beta1-arm64: digest: sha256:7941df9b7c340796996ec9c7ee2683083056cb47c858bf28ee9f73e17527a099 size: 10341
Job succeeded
2026-06-06 11:34.35: Job succeeded