(for PR #29248)

2026-01-19 18:14.36: 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 fedora-43-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29248/head" && git reset --hard 9d61e8a4
git fetch origin master
git merge --no-edit 39960ffbaf3e5b50a1e354d4c99bfecc01e358ca
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ambient-context.0.1.1 0.1.1
RUN opam reinstall ambient-context.0.1.1; \
    res=$?; \
    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 "\"fedora-43\""; 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 18:14.36: Using cache hint "ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c-ambient-context.0.1.1-9d61e8a449aa2436cbd9b390c4afa6b47e8ed0ba"
2026-01-19 18:14.36: Using OBuilder spec:
((from ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c)
 (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 \"\\\"fedora-43\\\"\"; 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 18:14.36: Waiting for resource in pool OCluster
2026-01-19 18:14.37: Waiting for worker…
2026-01-19 18:16.35: Got resource from pool OCluster
Building on odawa.caelum.ci.dev
All commits already cached
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:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c)
Unable to find image 'ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c' locally
docker.io/ocaml/opam@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c: Pulling from ocaml/opam
1216d224fefc: Already exists
4450b286db51: Already exists
f213d9630a58: Already exists
1ac91c863c9f: Already exists
ac7b6a59d354: Already exists
a03d1fec0c66: Already exists
414a632f94f5: Already exists
540f8b551429: Already exists
361086872251: Already exists
2989232f16a8: Already exists
f88fa47cb23c: Already exists
af81cf998b8f: Already exists
28be2fb954ce: Already exists
13f4118261b3: Already exists
e78605d71ed6: Already exists
3a1cb5320a48: Already exists
3a1cb5320a48: Already exists
3f95bc4266d5: Already exists
0b35382c4b95: Already exists
12585c66f435: Already exists
2d3c3473a4a6: Already exists
4f4fb700ef54: Already exists
1fbe30a19755: Already exists
1698c4cd8226: Already exists
80b290b946a7: Already exists
8b5844f332b6: Already exists
7c01a2763d75: Already exists
91166a944545: Already exists
e000500a44ce: Already exists
0f4245cfdbe4: Already exists
5261d8b1bc2a: Already exists
5590dfe80454: Already exists
5366cceadfa5: Already exists
c066a2eba5de: Already exists
31bbf36f42e6: Already exists
bc06542236b0: Already exists
1ebbc845c9c9: Already exists
cb497f5f5e6d: Already exists
71e586ec76e7: Already exists
d676cdc0c9b3: Already exists
4ef8e759a91d: Pulling fs layer
44b8c5e14f26: Pulling fs layer
f452dceffd91: Pulling fs layer
fd9d4969926a: Pulling fs layer
40f03219d50f: Pulling fs layer
fd9d4969926a: Waiting
40f03219d50f: Waiting
f452dceffd91: Download complete
fd9d4969926a: Verifying Checksum
fd9d4969926a: Download complete
40f03219d50f: Download complete
4ef8e759a91d: Verifying Checksum
4ef8e759a91d: Download complete
44b8c5e14f26: Verifying Checksum
44b8c5e14f26: Download complete
4ef8e759a91d: Pull complete
44b8c5e14f26: Pull complete
f452dceffd91: Pull complete
fd9d4969926a: Pull complete
40f03219d50f: Pull complete
Digest: sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c
Status: Downloaded newer image for ocaml/opam@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c
2026-01-19 18:17.21 ---> using "5292c797405748bf076c52d923e8095c7a877970c7b7d48dc45166e5bb126aac" from cache

/: (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 18:17.21 ---> using "18d2fa594130badfe1c79075d453a295259e254a7d44f09c83534c74f3b4f043" 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.

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.

Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
[ocaml-patches-overlay] synchronised from git+https://github.com/ocurrent/opam-repository#patches
2026-01-19 18:17.21 ---> using "80dd19713060494ff869ac53a5af00a6de1b5d868be003311c87e6943349ab0c" 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=x86_64 os=linux os-distribution=fedora os-version=43
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 255
# repositories         2 (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 18:17.21 ---> using "ad22e3639a4900b02442a98dc10024465f3457e3a5c36bdf8d87d33efe321910" 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 18:17.21 ---> using "3458b8a729e7a4b21cbecb3b27b02f6ef66cf91869d5396bc163edfc279aaa76" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-19 18:17.22 ---> saved as "5515f49f19748205e21cb3542627ffd5a86adef143252491539b9da07898255f"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-19 18:17.41 ---> saved as "975032d01f09911f9b028f2cae56d8d32b0602202165e4bc4bc0f0b66b014b93"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/sbin/sudo "yum" "makecache"
- Updating and loading repositories:
-  Fedora 43 - x86_64 - Updates           100% | 140.4 KiB/s |  20.1 KiB |  00m00s
- Repositories loaded.
- Metadata cache created.
2026-01-19 18:17.43 ---> saved as "c492c62ff60f1dd311c887e9c4feda7874bb54d51138018ec5ea8d01d23e4be6"

/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 18:17.45 ---> saved as "ee08d7f295f772d5870315149f2dabe89b93b7b27c490f7912f83306b8524bda"

/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 \"\\\"fedora-43\\\"\"; 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 18:18.08 ---> saved as "121a6c26f0b2e6c301a6a2020117efb8678f02e75364f640ac0a4544c72f4515"
Job succeeded
2026-01-19 18:18.19: Job succeeded