2026-08-08 12:02.56: New job: Build using windows-x86_64 in
                                []
2026-08-08 12:02.56: Will push staging image to ocurrent/opam-staging:windows-server-msvc-ltsc2025-ocaml-5.5-amd64

Dockerfile:

# escape=`

FROM ocurrent/opam-staging@sha256:aae67003d70c9e19231bf7136ffdbb4661fa6d35ce04f3f045e1f258dde04a25
ENV OPAMYES="1" OPAMCONFIRMLEVEL="unsafe-yes" OPAMERRLOGLEN="0" OPAMPRECISETRACKING="1"
RUN opam switch create 5.5 --packages=ocaml-base-compiler.5.5.0,system-msvc
RUN opam pin add -k version ocaml-base-compiler 5.5.0
ENTRYPOINT [ "opam", "exec", "--" ]
CMD [ "cmd.exe" ]
COPY [ "Dockerfile", "/Dockerfile.ocaml" ]


2026-08-08 12:02.56: Using cache hint "5.5.0-amd64-ocurrent/opam-staging@sha256:aae67003d70c9e19231bf7136ffdbb4661fa6d35ce04f3f045e1f258dde04a25"
2026-08-08 12:02.56: Waiting for resource in pool OCluster
2026-08-08 12:02.57: Waiting for worker…
2026-08-08 12:25.49: Got resource from pool OCluster
Building on ltsc2025-2
Sending build context to Docker daemon  2.048kB

Step 1/7 : FROM ocurrent/opam-staging@sha256:aae67003d70c9e19231bf7136ffdbb4661fa6d35ce04f3f045e1f258dde04a25
docker.io/ocurrent/opam-staging@sha256:aae67003d70c9e19231bf7136ffdbb4661fa6d35ce04f3f045e1f258dde04a25: Pulling from ocurrent/opam-staging
Digest: sha256:aae67003d70c9e19231bf7136ffdbb4661fa6d35ce04f3f045e1f258dde04a25
Status: Image is up to date for ocurrent/opam-staging@sha256:aae67003d70c9e19231bf7136ffdbb4661fa6d35ce04f3f045e1f258dde04a25
 ---> e71eaa115cc3
Step 2/7 : ENV OPAMYES="1" OPAMCONFIRMLEVEL="unsafe-yes" OPAMERRLOGLEN="0" OPAMPRECISETRACKING="1"
 ---> Using cache
 ---> e98284bd7545
Step 3/7 : RUN opam switch create 5.5 --packages=ocaml-base-compiler.5.5.0,system-msvc
 ---> Running in 657c443ae777

<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
Switch invariant: ["ocaml-base-compiler" {= "5.5.0"} "system-msvc"]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed arch-x86_64.1
-> installed base-bigarray.base
-> installed base-threads.base
-> installed base-unix.base
-> installed compiler-cloning.enabled
-> installed host-arch-x86_64.1
-> installed host-system-msvc.1
-> retrieved ocaml.5.5.0  (https://raw.githubusercontent.com/ocaml/ocaml/5799ec070df18cec96e5d828bc8e10b86cb0ed2c/tools/opam/gen_ocaml_config.ml)
-> retrieved flexdll.0.44  (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> installed ocaml-option-no-compression.1
-> installed ocaml-options-vanilla.1
-> retrieved msvs-detect.0.8.0  (https://github.com/metastack/msvs-tools/archive/refs/tags/0.8.0.tar.gz)
-> installed msvs-detect.0.8.0
-> retrieved ocaml-compiler.5.5.0  (https://github.com/ocaml/ocaml/releases/download/5.5.0/ocaml-5.5.0.tar.gz)
-> installed conf-msvc64.1
-> installed ocaml-env-msvc64.1
-> installed system-msvc.1
-> installed ocaml-compiler.5.5.0
-> installed ocaml-base-compiler.5.5.0
-> installed ocaml.5.5.0
-> installed base-domains.base
-> installed base-effects.base
-> installed base-nnp.base
Done.

<><> ocaml-compiler.5.5.0 installed successfully ><><><><><><><><><><><><><><><>
=> This switch had to be compiled from sources, but future switches with the 🐌
   same compiler version and configuration should assemble instantly.

<><> conf-msvc64.1 installed successfully <><><><><><><><><><><><><><><><><><><>
=> The Microsoft C compiler has been located in the environment which suggests opam
   is running either from a Tools Command Prompt or from another wrapper which is
   updating the environment variables.

   opam has not altered these environment settings, but you will need to ensure
   that future invocations of opam are done from the same environment, or the
   compiler will be unavailable.
# Run for /f "tokens=*" %i in ('opam env --switch=5.5') do @%i to update the current shell environment
 ---> Removed intermediate container 657c443ae777
 ---> 54eec98b4cbf
Step 4/7 : RUN opam pin add -k version ocaml-base-compiler 5.5.0
 ---> Running in 809341e77ae8
ocaml-base-compiler is now pinned to version 5.5.0

Already up-to-date.
Nothing to do.
# Run for /f "tokens=*" %i in ('opam env') do @%i to update the current shell environment
 ---> Removed intermediate container 809341e77ae8
 ---> 37e3b54af37e
Step 5/7 : ENTRYPOINT [ "opam", "exec", "--" ]
 ---> Running in 23142d3c0b24
 ---> Removed intermediate container 23142d3c0b24
 ---> e345dd5c6179
Step 6/7 : CMD [ "cmd.exe" ]
 ---> Running in 6d896773ee72
 ---> Removed intermediate container 6d896773ee72
 ---> 814da51f9210
Step 7/7 : COPY [ "Dockerfile", "/Dockerfile.ocaml" ]
 ---> 09f39a7b0ec8
Successfully built 09f39a7b0ec8
Pushing "sha256:09f39a7b0ec8a4ba1812095bbc47bf203fd48bb071678a8dde4925995a5fcc0e" to "ocurrent/opam-staging:windows-server-msvc-ltsc2025-ocaml-5.5-amd64" as user "ocurrentbuilder"
Login Succeeded
The push refers to repository [docker.io/ocurrent/opam-staging]
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windows-server-msvc-ltsc2025-ocaml-5.5-amd64: digest: sha256:59dcd5026e166bb832fc2325e6e653b61342e95fc34f92a103fe7104d4fc1d54 size: 12315
Job succeeded
2026-08-08 12:52.43: Job succeeded