(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-13-ocaml-4.08/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29248/head" && git reset --hard 9d61e8a4
git fetch origin master
git merge --no-edit 39960ffbaf3e5b50a1e354d4c99bfecc01e358ca
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.08@sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ambient-context.0.1.1 0.1.1
RUN opam reinstall ambient-context.0.1.1; \
    res=$?; \
    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: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test ambient-context.0.1.1) || true
RUN opam reinstall --with-test --verbose ambient-context.0.1.1; \
    res=$?; \
    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-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 18:14.36: Using cache hint "ocaml/opam:debian-13-ocaml-4.08@sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84-ambient-context.0.1.1-9d61e8a449aa2436cbd9b390c4afa6b47e8ed0ba"
2026-01-19 18:14.36: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.08@sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84)
 (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: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test ambient-context.0.1.1) || true"))
 (run (shell  "opam reinstall --with-test --verbose ambient-context.0.1.1;\
             \n        res=$?;\
             \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-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 18:14.36: Waiting for resource in pool OCluster
2026-01-19 18:14.37: Waiting for worker…
2026-01-19 18:14.37: Got resource from pool OCluster
Building on eumache
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-13-ocaml-4.08@sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.08@sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84' locally
docker.io/ocaml/opam@sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84: Pulling from ocaml/opam
2ca1bfae7ba8: Already exists
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Digest: sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84
Status: Downloaded newer image for ocaml/opam@sha256:78d717fcca7c0865b5f7f500d51b5a746fcfc798c6869a4b6bf22e87791aef84
2026-01-19 18:14.47 ---> using "353beaf5a3c9b032ecb62c926e7ce7890656c3345a46e1ff971d316d3c6ff58e" 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 18:14.47 ---> using "63532de8ef4927ccdad7ca3391b68b0daa45eab7ed0d0f804cf18b9d1df3e325" 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
2026-01-19 18:14.47 ---> using "93d3c206eebbfe7da278de7c7345a2674dc22e61b59a22a8c14a7d7b67a23ccc" 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=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.08
# invariant            ["ocaml-base-compiler" {= "4.08.1"}]
# compiler-packages    ocaml-base-compiler.4.08.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.08/lib/ocaml/stublibs:/home/opam/.opam/4.08/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.08.1
2026-01-19 18:14.47 ---> using "ac144c659552a0f0aaf9a89540e179d0ee44c1a5b67302ceed4a2d842a614077" 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 18:14.47 ---> using "0204137ae72a4d432fbb9fde22067f2fb33263a75d4997585db1426430fa3725" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-19 18:14.51 ---> saved as "e8571b5b682fc1fe1399e618997bdda42041ed169895d82a738745e185b4801e"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-19 18:15.11 ---> saved as "d219c813c2fb48ee2efada2e215602338b96b1124f739225a087ec777dd3e99f"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- 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-security trixie-security/main amd64 Packages [96.1 kB]
- Fetched 187 kB in 0s (1925 kB/s)
- Reading package lists...
2026-01-19 18:15.12 ---> saved as "5e9cf080e9b4b3482a8d29c5199ff6fcbe816085b32438437522220cad3a1276"

/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 18:15.14 ---> saved as "0263859146e510ab72ee537bcc0dd39a7c1a4c63137e935c698ded5cd5517b8f"

/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  (https://github.com/ocaml-tracing/ambient-context/releases/download/v0.1.1/ambient-context-0.1.1.tbz)
-> 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 18:15.45 ---> saved as "5c6bb7daf871f4c86c9650ce064761847bad53bd435ba4b9191e1546b6f41396"

/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 17 packages
  - install   alcotest                1.9.1              [required by ambient-context]
  - install   astring                 0.8.5              [required by alcotest]
  - install   bisect_ppx              1.4.2              [required by ambient-context]
  - install   cmdliner                2.1.0              [required by alcotest]
  - install   fmt                     0.11.0             [required by alcotest]
  - install   ocaml-migrate-parsetree 1.8.0 (deprecated) [required by bisect_ppx]
  - 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 ocaml-migrate-parsetree]
  - install   ppx_tools_versioned     5.4.0              [required by bisect_ppx]
  - install   re                      1.11.0             [required by alcotest]
  - install   result                  1.5                [required by ocaml-migrate-parsetree]
  - install   seq                     base               [required by re]
  - 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.1.4.2  (https://opam.ocaml.org/cache)
-> retrieved cmdliner.2.1.0  (https://opam.ocaml.org/cache)
-> retrieved fmt.0.11.0  (https://opam.ocaml.org/cache)
-> retrieved ocaml-migrate-parsetree.1.8.0  (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)
-> retrieved ppx_tools_versioned.5.4.0  (https://opam.ocaml.org/cache)
-> installed ppx_derivers.1.2.1
-> retrieved re.1.11.0  (https://opam.ocaml.org/cache)
-> retrieved result.1.5  (https://opam.ocaml.org/cache)
-> installed ocaml-syntax-shims.1.0.0
-> retrieved seq.base  (2 extra sources)
-> retrieved seq.base  (2 extra sources)
-> installed seq.base
-> retrieved stdlib-shims.0.3.0  (https://opam.ocaml.org/cache)
-> installed result.1.5
-> 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 re.1.11.0
-> installed ocamlfind.1.9.8
-> installed cmdliner.2.1.0
-> removed   ambient-context.0.1.1
-> installed ocamlbuild.0.16.1
-> installed ocaml-migrate-parsetree.1.8.0
-> installed ppx_tools_versioned.5.4.0
-> installed topkg.1.1.1
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed bisect_ppx.1.4.2
-> installed alcotest.1.9.1
-> installed ambient-context.0.1.1
Done.

<><> ocaml-migrate-parsetree.1.8.0 installed successfully <><><><><><><><><><><>
=> Note: This package is deprecated.
# To update the current shell environment, run: eval $(opam env)
2026-01-19 18:16.08 ---> saved as "87e869673ef7154fa75aab06daf90608d36a0f62aa7e2a56f98c2d3b743a206a"

/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-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"))
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" "71" "@install" "@runtest" (CWD=/home/opam/.opam/4.08/.opam-switch/build/ambient-context.0.1.1)
- (cd _build/default/test/unix && ./test_unix.exe)
- Testing `Unix'.
- This run has ID `891VRYX7'.
- 
-   [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/4.08/.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 18:16.14 ---> saved as "67ad65c2bc8fc03ce6297cf6e9fa4a167d93d6212070c3e21d89b329373ac9c9"
Job succeeded
2026-01-19 18:16.18: Job succeeded