2026-08-17 07:51.21: New job: Build using linux-x86_64 in
                                []
2026-08-17 07:51.21: Will push staging image to ocurrent/opam-staging:alpine-3.24-ocaml-5.5-flambda-amd64

Dockerfile:

# syntax=docker/dockerfile:1

FROM ocurrent/opam-staging@sha256:0ab8fc5cc3301cab642878cfd787feb721a6b51d11b02cbb809c397f57ecc2d4
ENV OPAMYES="1" OPAMCONFIRMLEVEL="unsafe-yes" OPAMERRLOGLEN="0" OPAMPRECISETRACKING="1"
USER root
RUN apk update && apk upgrade
RUN apk add zstd-dev
USER opam
RUN opam switch create 5.5 --packages=ocaml-variants.5.5.0+options,ocaml-options-only-flambda
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" ]


2026-08-17 07:51.21: Using cache hint "5.5.0+flambda-amd64-ocurrent/opam-staging@sha256:0ab8fc5cc3301cab642878cfd787feb721a6b51d11b02cbb809c397f57ecc2d4"
2026-08-17 07:51.21: Waiting for resource in pool OCluster
2026-08-17 07:51.21: Waiting for worker…
2026-08-17 07:51.21: Got resource from pool OCluster
Building on phoebe.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: 605B done
#1 DONE 0.0s

#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:ecfaec9ed6d810b56388c508f4121597bfbba70d41a6dfeee4d8cad5f295fc32
#3 CACHED

#4 [internal] load metadata for docker.io/ocurrent/opam-staging@sha256:0ab8fc5cc3301cab642878cfd787feb721a6b51d11b02cbb809c397f57ecc2d4
#4 DONE 0.0s

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

#6 [internal] load build context
#6 transferring context: 605B done
#6 DONE 0.0s

#7 [1/6] FROM docker.io/ocurrent/opam-staging@sha256:0ab8fc5cc3301cab642878cfd787feb721a6b51d11b02cbb809c397f57ecc2d4
#7 resolve docker.io/ocurrent/opam-staging@sha256:0ab8fc5cc3301cab642878cfd787feb721a6b51d11b02cbb809c397f57ecc2d4
#7 resolve docker.io/ocurrent/opam-staging@sha256:0ab8fc5cc3301cab642878cfd787feb721a6b51d11b02cbb809c397f57ecc2d4 0.8s done
#7 DONE 1.1s

#8 [2/7] RUN apk update && apk upgrade
#8 4.058 v3.24.1-389-gabd41c49b2d [https://dl-cdn.alpinelinux.org/alpine/v3.24/main]
#8 4.058 v3.24.1-388-gea4f7841a6f [https://dl-cdn.alpinelinux.org/alpine/v3.24/community]
#8 4.058 v20260805-771-g68d135dfb59 [https://dl-cdn.alpinelinux.org/alpine/edge/main]
#8 4.058 v20260805-773-g6507fb88b2a [https://dl-cdn.alpinelinux.org/alpine/edge/community]
#8 4.058 v20260805-770-gc445a45afe4 [https://dl-cdn.alpinelinux.org/alpine/edge/testing]
#8 4.058 OK: 62177 distinct packages available
#8 4.877 OK: 339.2 MiB in 103 packages
#8 DONE 4.9s

#9 [3/7] RUN apk add zstd-dev
#9 1.011 (1/2) Installing zstd (1.5.7-r2)
#9 1.169 (2/2) Installing zstd-dev (1.5.7-r2)
#9 1.207 Executing busybox-1.37.0-r31.trigger
#9 1.232 OK: 339.7 MiB in 105 packages
#9 DONE 1.3s

#10 [4/7] RUN opam switch create 5.5 --packages=ocaml-variants.5.5.0+options,ocaml-options-only-flambda
#10 0.642 
#10 0.642 <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
#10 0.642 Switch invariant: ["ocaml-variants" {= "5.5.0+options"} "ocaml-options-only-flambda"]
#10 6.656 
#10 6.656 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#10 11.10 -> installed base-bigarray.base
#10 11.10 -> installed base-threads.base
#10 11.10 -> installed base-unix.base
#10 11.10 -> installed compiler-cloning.enabled
#10 11.10 -> installed ocaml-option-flambda.1
#10 11.10 -> installed ocaml-options-only-flambda.1
#10 11.11 -> retrieved ocaml.5.5.0  (https://opam.ocaml.org/cache)
#10 11.67 -> retrieved ocaml-compiler.5.5.0  (https://opam.ocaml.org/cache)
#10 200.0 -> installed ocaml-compiler.5.5.0
#10 200.0 -> installed ocaml-variants.5.5.0+options
#10 200.2 -> installed ocaml.5.5.0
#10 200.2 -> installed base-domains.base
#10 200.2 -> installed base-effects.base
#10 200.2 -> installed base-nnp.base
#10 200.4 Done.
#10 200.4 
#10 200.4 <><> ocaml-compiler.5.5.0 installed successfully ><><><><><><><><><><><><><><><>
#10 200.4 => This switch had to be compiled from sources, but future switches with the 🐌
#10 200.4    same compiler version and configuration should assemble instantly.
#10 200.4 # Run eval $(opam env --switch=5.5) to update the current shell environment
#10 DONE 202.6s

#11 [5/7] RUN opam pin add -k version ocaml-variants 5.5.0+options
#11 0.626 ocaml-variants is now pinned to version 5.5.0+options
#11 0.626 
#11 6.912 No package build needed.
#11 6.912 Nothing to do.
#11 6.918 # Run eval $(opam env) to update the current shell environment
#11 DONE 7.0s

#12 [6/7] RUN opam install -y opam-depext
#12 6.815 The following actions will be performed:
#12 6.815   - install opam-depext 1.2.3
#12 6.815 
#12 6.815 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
#12 7.113 -> retrieved opam-depext.1.2.3  (https://opam.ocaml.org/cache)
#12 12.13 -> installed opam-depext.1.2.3
#12 12.14 Done.
#12 12.14 
#12 12.14 <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
#12 12.14 => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
#12 12.14 # Run eval $(opam env) to update the current shell environment
#12 DONE 13.4s

#13 [7/7] COPY --link [ Dockerfile, /Dockerfile.ocaml ]
#13 DONE 0.0s

#14 exporting to image
#14 exporting layers
#14 exporting layers 5.2s done
#14 writing image sha256:bc2b19bd8f025e398d36499f30f2677846fa2f1f039734a327f033c4838c2993 done
#14 DONE 5.2s

 1 warning found (use docker --debug to expand):
 - JSONArgsRecommended: JSON arguments recommended for CMD to prevent unintended behavior related to OS signals (line 13)
Pushing "sha256:bc2b19bd8f025e398d36499f30f2677846fa2f1f039734a327f033c4838c2993" to "ocurrent/opam-staging:alpine-3.24-ocaml-5.5-flambda-amd64" as user "ocurrentbuilder"
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Job succeeded
2026-08-17 07:58.24: Job succeeded