(for PR #29248)

2026-01-19 18:14.37: New job: build ambient-context.0.1.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29248/head (9d61e8a449aa2436cbd9b390c4afa6b47e8ed0ba)
                              on debian-13-ocaml-4.14/arm32v7

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29248/head" && git reset --hard 9d61e8a4
git fetch origin master
git merge --no-edit 39960ffbaf3e5b50a1e354d4c99bfecc01e358ca
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28
SHELL [ "/usr/bin/linux32", "/bin/sh", "-c" ]
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ambient-context.0.1.1 0.1.1
RUN opam reinstall ambient-context.0.1.1; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'ambient-context.0.1.1' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1

END-OF-DOCKERFILE
docker build -f ../Dockerfile .

2026-01-19 18:14.37: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28-ambient-context.0.1.1-9d61e8a449aa2436cbd9b390c4afa6b47e8ed0ba"
2026-01-19 18:14.37: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28)
 (shell /usr/bin/linux32 /bin/sh -c)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "opam option solver=builtin-0install && opam config report"))
 (env OPAMDOWNLOADJOBS 1)
 (env OPAMERRLOGLEN 0)
 (env OPAMPRECISETRACKING 1)
 (env CI true)
 (env OPAM_REPO_CI true)
 (run (shell "rm -rf opam-repository/"))
 (copy (src .) (dst opam-repository/))
 (run (shell "opam repository set-url --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn ambient-context.0.1.1 0.1.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall ambient-context.0.1.1;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'ambient-context.0.1.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-19 18:14.37: Waiting for resource in pool OCluster
2026-01-19 18:14.37: Waiting for worker…
2026-01-19 18:27.18: Got resource from pool OCluster
Building on ainia.caelum.ci.dev
All commits already cached
Updating files:  68% (13212/19231)
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Updating files: 100% (19231/19231), done.
HEAD is now at 39960ffbaf Merge pull request #29193 from recoules/release-binsec-0.11.0
Updating 39960ffbaf..9d61e8a449
Fast-forward
 .../ambient-context-eio.0.1.1/opam                 | 42 +++++++++++++++++++++
 .../ambient-context-lwt.0.1.1/opam                 | 42 +++++++++++++++++++++
 .../ambient-context/ambient-context.0.1.1/opam     | 43 ++++++++++++++++++++++
 3 files changed, 127 insertions(+)
 create mode 100644 packages/ambient-context-eio/ambient-context-eio.0.1.1/opam
 create mode 100644 packages/ambient-context-lwt/ambient-context-lwt.0.1.1/opam
 create mode 100644 packages/ambient-context/ambient-context.0.1.1/opam

(from ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28' locally
docker.io/ocaml/opam@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28: Pulling from ocaml/opam
11c42a85d7bc: Pulling fs layer
11c42a85d7bc: Verifying Checksum
11c42a85d7bc: Download complete
11c42a85d7bc: Pull complete
Digest: sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28
Status: Downloaded newer image for ocaml/opam@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28
2026-01-19 18:27.20 ---> using "f93190b1bd3420d0691c4747bc4982474ba9fd2940d67a3c601dbb26b29112f1" from cache

/: (shell /usr/bin/linux32 /bin/sh -c)

/: (user (uid 1000) (gid 1000))

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-19 18:27.20 ---> using "291361e95fb5d8c42b3334390f4fafc2b4a12039d6aeb6397587e696a53567cd" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
Configuring from /home/opam/.opamrc-sandbox, then /home/opam/.opamrc, and finally from built-in defaults.
Checking for available remotes: rsync and local, git.
  - you won't be able to use mercurial repositories unless you install the hg command on your system.
  - you won't be able to use darcs repositories unless you install the darcs command on your system.

Continue? [Y/n] y
This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-01-19 18:27.20 ---> using "eca8a9c1cae54ead1743b15a02d588ededa9bd283259ce4bbcbafb93143eb0a9" from cache

/home/opam: (run (shell "opam option solver=builtin-0install && opam config report"))
Set to 'builtin-0install' the field solver in global configuration
# opam config report
# opam-version         2.5.0
# self-upgrade         no
# system               arch=arm32 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 79
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.14/lib/ocaml/stublibs:/home/opam/.opam/4.14/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2026-01-19 18:27.20 ---> using "60e7af4a8956c44788aee08560c1f61ed2a03f10870357f3557fb03eda90f869" from cache

/home/opam: (env OPAMDOWNLOADJOBS 1)

/home/opam: (env OPAMERRLOGLEN 0)

/home/opam: (env OPAMPRECISETRACKING 1)

/home/opam: (env CI true)

/home/opam: (env OPAM_REPO_CI true)

/home/opam: (run (shell "rm -rf opam-repository/"))
2026-01-19 18:27.20 ---> using "ab689220024a8543bbd8248212fa5cf3a2ff19360077009bdc9d861035b4b59f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-19 18:27.21 ---> using "0c38530f65ba27223be63bc8205a98ea96f30fa2461c3ae69e50f391aaf24572" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-19 18:27.21 ---> using "89ced99037b64ac42d9e21e76d704da8b133ed8a81583b1756adf06421960bd2" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian trixie/main armhf Packages [9238 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main armhf Packages [90.3 kB]
- Fetched 9559 kB in 1s (7226 kB/s)
- Reading package lists...
- 
2026-01-19 18:27.21 ---> using "84c0be7ffff52c032536892f4b9b824fe6bc268fc4e55862bde07c6349803f87" from cache

/home/opam: (run (shell "opam pin add -k version -yn ambient-context.0.1.1 0.1.1"))
ambient-context is now pinned to version 0.1.1
2026-01-19 18:27.22 ---> saved as "84cc06cea1cbe922315e2201e9887b49be8705fa0f30b43e1c5d4d1d5ccd45a9"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall ambient-context.0.1.1;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'ambient-context.0.1.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
ambient-context.0.1.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 2 packages
  - install ambient-context 0.1.1 (pinned)
  - install dune            3.21.0         [required by ambient-context]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved ambient-context.0.1.1  (cached)
-> retrieved dune.3.21.0  (cached)
-> installed dune.3.21.0
-> installed ambient-context.0.1.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-01-19 18:28.06 ---> saved as "ee665a466cfea8537f3d0d82a7c24276e9bbe8a57b21be870d06340aca8e4a60"
Job succeeded
2026-01-19 18:28.13: Job succeeded