(for PR #29248)

2026-01-19 18:14.36: New job: test ambient-context.0.1.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29248/head (9d61e8a449aa2436cbd9b390c4afa6b47e8ed0ba)
                              on debian-unstable-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29248/head" && git reset --hard 9d61e8a4
git fetch origin master
git merge --no-edit 39960ffbaf3e5b50a1e354d4c99bfecc01e358ca
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-unstable-ocaml-4.14@sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ambient-context.0.1.1 0.1.1
RUN opam reinstall ambient-context.0.1.1; \
    res=$?; \
    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-unstable\""; 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: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test ambient-context.0.1.1) || true
RUN opam reinstall --with-test --verbose ambient-context.0.1.1; \
    res=$?; \
    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-unstable\""; 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:debian-unstable-ocaml-4.14@sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234-ambient-context.0.1.1-9d61e8a449aa2436cbd9b390c4afa6b47e8ed0ba"
2026-01-19 18:14.36: Using OBuilder spec:
((from ocaml/opam:debian-unstable-ocaml-4.14@sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234)
 (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-unstable\\\"\"; 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: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test ambient-context.0.1.1) || true"))
 (run (shell  "opam reinstall --with-test --verbose ambient-context.0.1.1;\
             \n        res=$?;\
             \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-unstable\\\"\"; 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 18:14.38: Waiting for worker…
2026-01-19 18:16.51: 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:debian-unstable-ocaml-4.14@sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234)
Unable to find image 'ocaml/opam:debian-unstable-ocaml-4.14@sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234' locally
docker.io/ocaml/opam@sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234: Pulling from ocaml/opam
Digest: sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234
Status: Downloaded newer image for ocaml/opam@sha256:877f401ba4bf492d9b9b852542d7ba21baebf850b4d7bfed2a458934758d9234
2026-01-19 18:18.20 ---> saved as "b462075ce39918979f5d46f895062d08f07edac802eb7daefb45e42c925c98e1"

/: (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 18:18.20 ---> saved as "581c964e68c07fbeb1f65d54c65a2fefdf27a535243971df4ba8254b219fcf7b"

/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 ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[ocaml-patches-overlay] synchronised from git+https://github.com/ocurrent/opam-repository#patches
[default] Initialised
2026-01-19 18:19.19 ---> saved as "77050ad4c9fedcd0e4b840e14b66917d7fd59a01e5f2df0c5664cff5ff69a076"

/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=debian os-version=unknown
# 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 18:19.20 ---> saved as "95b194353f2b76e23e866c97fa41c13f8a7e60efd815b1ffe956cfbdb2b002ed"

/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 18:19.35 ---> saved as "655981729f8b0b2c5918f390c11cf134c3350c092adcd061f27cdcc6a70bfe21"

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-19 18:19.52 ---> saved as "84593f0db909ef93c46c05b4248452da0b2013254a388123f645831c2a75bc27"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-19 18:20.09 ---> saved as "f4021883caa4cc958547d3caf64481cf773c5b44b0393578ad518ae7c83ba88b"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian unstable InRelease [187 kB]
- Get:2 http://deb.debian.org/debian unstable/main amd64 Packages.diff/Index [63.6 kB]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2026-01-19-1447.19-F-2026-01-16-2009.15.pdiff [666 kB]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2026-01-19-1447.19-F-2026-01-16-2009.15.pdiff [666 kB]
- Fetched 917 kB in 1s (729 kB/s)
- Reading package lists...
2026-01-19 18:20.11 ---> saved as "23465690966d737e1f4e2f284eed9303c8e92e6e10a5756edf04b9dd9d159e47"

/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 18:20.12 ---> saved as "8ba3f1ed4e4b04513dff9727ef9e30e2ec100abd670fb190f5f9edabf675d0f4"

/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-unstable\\\"\"; 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:
=== recompile 2 packages
  - recompile ocaml           4.14.2         [upstream or system changes]
  - recompile opam-depext     1.2.3          [uses ocaml]
=== 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)
-> retrieved opam-depext.1.2.3  (cached)
-> removed   opam-depext.1.2.3
-> removed   ocaml.4.14.2
-> installed ocaml.4.14.2
-> installed opam-depext.1.2.3
-> installed dune.3.21.0
-> installed ambient-context.0.1.1
Done.

<><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
=> opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
# To update the current shell environment, run: eval $(opam env)
2026-01-19 18:20.35 ---> saved as "60a4b34c913cbc9fcce7e2598b457fd46f58960bc8b4a3a8d050ded2a9bc96e4"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test ambient-context.0.1.1) || true"))
The following actions will be performed:
=== recompile 1 package
  - recompile ambient-context     0.1.1 (pinned)
=== install 16 packages
  - install   alcotest            1.9.1          [required by ambient-context]
  - install   astring             0.8.5          [required by alcotest]
  - install   bisect_ppx          2.8.3          [required by ambient-context]
  - install   cmdliner            1.3.0          [required by alcotest, bisect_ppx]
  - install   fmt                 0.11.0         [required by alcotest]
  - install   ocaml-compiler-libs v0.12.4        [required by ppxlib]
  - install   ocaml-syntax-shims  1.0.0          [required by alcotest]
  - install   ocamlbuild          0.16.1         [required by fmt, astring, uutf]
  - install   ocamlfind           1.9.8          [required by fmt, astring, uutf]
  - install   ppx_derivers        1.2.1          [required by ppxlib]
  - install   ppxlib              0.35.0         [required by bisect_ppx]
  - install   re                  1.14.0         [required by alcotest]
  - install   sexplib0            v0.17.0        [required by ppxlib]
  - install   stdlib-shims        0.3.0          [required by alcotest]
  - install   topkg               1.1.1          [required by fmt, astring, uutf]
  - install   uutf                1.0.4          [required by alcotest]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved alcotest.1.9.1  (https://opam.ocaml.org/cache)
-> retrieved astring.0.8.5  (https://opam.ocaml.org/cache)
-> retrieved bisect_ppx.2.8.3  (https://opam.ocaml.org/cache)
-> retrieved cmdliner.1.3.0  (https://opam.ocaml.org/cache)
-> retrieved fmt.0.11.0  (https://opam.ocaml.org/cache)
-> retrieved ocaml-compiler-libs.v0.12.4  (https://opam.ocaml.org/cache)
-> retrieved ocaml-syntax-shims.1.0.0  (https://opam.ocaml.org/cache)
-> retrieved ocamlbuild.0.16.1  (https://opam.ocaml.org/cache)
-> retrieved ocamlfind.1.9.8  (https://opam.ocaml.org/cache)
-> retrieved ppx_derivers.1.2.1  (https://opam.ocaml.org/cache)
-> installed ppx_derivers.1.2.1
-> retrieved ppxlib.0.35.0  (https://opam.ocaml.org/cache)
-> installed ocaml-syntax-shims.1.0.0
-> installed ocaml-compiler-libs.v0.12.4
-> retrieved re.1.14.0  (https://opam.ocaml.org/cache)
-> retrieved sexplib0.v0.17.0  (https://opam.ocaml.org/cache)
-> retrieved stdlib-shims.0.3.0  (https://opam.ocaml.org/cache)
-> retrieved topkg.1.1.1  (https://opam.ocaml.org/cache)
-> retrieved uutf.1.0.4  (https://opam.ocaml.org/cache)
-> installed stdlib-shims.0.3.0
-> installed sexplib0.v0.17.0
-> installed cmdliner.1.3.0
-> installed ocamlfind.1.9.8
-> installed re.1.14.0
-> removed   ambient-context.0.1.1
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed alcotest.1.9.1
-> installed ppxlib.0.35.0
-> installed bisect_ppx.2.8.3
-> installed ambient-context.0.1.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-01-19 18:20.53 ---> saved as "03911c6b8ab6265f0b5dce5a715df9dd432b16f7c488fc1db136d799cd97a9df"

/home/opam: (run (shell  "opam reinstall --with-test --verbose 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-unstable\\\"\"; 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"))
The following actions will be performed:
=== recompile 1 package
  - recompile ambient-context 0.1.1 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  2/4: [ambient-context: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "ambient-context" "-j" "255" "@install" "@runtest" (CWD=/home/opam/.opam/4.14/.opam-switch/build/ambient-context.0.1.1)
- (cd _build/default/test/unix && ./test_unix.exe)
- Testing `Unix'.
- This run has ID `293LGKSZ'.
- 
-   [OK]          Basics          0   can create keys.
-   [OK]          Basics          1   can set, and get, keys.
-   [OK]          Basics          2   can unset keys.
- 
- Full test results in `~/.opam/4.14/.opam-switch/build/ambient-context.0.1.1/_build/default/test/unix/_build/_tests/Unix'.
- Test Successful in 0.000s. 3 tests run.
-> compiled  ambient-context.0.1.1
-> removed   ambient-context.0.1.1
-> installed ambient-context.0.1.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-01-19 18:20.57 ---> saved as "ef915a74969bf97e87635573948a0c5e74296f1e54e9905186abd4c6361214a6"
Job succeeded
2026-01-19 18:21.04: Job succeeded