(for PR #29248)

2026-01-19 18:14.37: New job: build ambient-context-eio.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-nnpchecker/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29248/head" && git reset --hard 9d61e8a4
git fetch origin master
git merge --no-edit 39960ffbaf3e5b50a1e354d4c99bfecc01e358ca
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14-nnpchecker@sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ambient-context-eio.0.1.1 0.1.1
RUN opam reinstall ambient-context-eio.0.1.1; \
    res=$?; \
    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 "$pkg" != 'ambient-context-eio.0.1.1' && partial_fails="$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-nnpchecker@sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b-ambient-context-eio.0.1.1-9d61e8a449aa2436cbd9b390c4afa6b47e8ed0ba"
2026-01-19 18:14.37: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14-nnpchecker@sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b)
 (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-eio.0.1.1 0.1.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall ambient-context-eio.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 \"$pkg\" != 'ambient-context-eio.0.1.1' && partial_fails=\"$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 18:16.17: Waiting for worker…
2026-01-19 18:19.28: Got resource from pool OCluster
Building on toxis.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-13-ocaml-4.14-nnpchecker@sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14-nnpchecker@sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b' locally
docker.io/ocaml/opam@sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b: Pulling from ocaml/opam
2ca1bfae7ba8: Already exists
3baeae2ed4cf: Already exists
b254ca288623: Already exists
745976a04e35: Already exists
a516242b2337: Already exists
9bb526cd9631: Already exists
3737e8f76884: Already exists
6a8811ebcb2c: Already exists
386dffb80382: Already exists
e04d691eea35: Already exists
bb72c0d1c3f0: Already exists
3a56fcb872cd: Already exists
5abffa2313de: Already exists
7ed80bc2b055: Already exists
87c92835260d: Already exists
5624e0ee5ca5: Already exists
96e54dc9b357: Already exists
96e54dc9b357: Already exists
7c484d393436: Already exists
16b8d7610542: Already exists
c5ac47ffe6ef: Already exists
00cfb259c8ac: Already exists
4f4fb700ef54: Already exists
4658a16b5264: Already exists
7c82a6a00032: Already exists
b76e2612fc73: Already exists
da0741a07551: Already exists
102a21125d73: Already exists
d244b294335f: Already exists
e47a432b94fb: Already exists
6ee7cce1e23d: Already exists
2475e9cbd3e5: Already exists
4f8aac8ae1e5: Already exists
3e59226f7823: Already exists
6d429b9a6ce7: Already exists
dc8bbbd9edf9: Already exists
66ec5629681d: Already exists
74661ee64965: Already exists
b3088c441ac7: Already exists
11be3e645e01: Already exists
e9a0ff031006: Already exists
a91b821e914f: Pulling fs layer
6f5a532f5be3: Pulling fs layer
fedee7f54cda: Pulling fs layer
027a7b44bafd: Pulling fs layer
027a7b44bafd: Waiting
a91b821e914f: Verifying Checksum
a91b821e914f: Download complete
6f5a532f5be3: Verifying Checksum
6f5a532f5be3: Download complete
fedee7f54cda: Verifying Checksum
fedee7f54cda: Download complete
027a7b44bafd: Download complete
a91b821e914f: Pull complete
6f5a532f5be3: Pull complete
fedee7f54cda: Pull complete
027a7b44bafd: Pull complete
Digest: sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b
Status: Downloaded newer image for ocaml/opam@sha256:736bec2df1442c641d954b5fd87c83792928d325d1bfd555fbf9ad415c84786b
2026-01-19 18:19.39 ---> using "d9c76f8f1abd09098dc7f965d2a2557886df8529161d8084963333462860e386" 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 18:19.39 ---> using "110543b9aef8257839d3a43ab52504f2dbd52801313116ba4d4437bfe9fd98b0" 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 18:19.39 ---> using "35a49a76e4d9835a11dfb2bcdbc6d55062132b145b6a6002d9253f5fe1d559bd" 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       4.14
# invariant            ["ocaml-options-only-nnpchecker"]
# compiler-packages    ocaml-option-nnpchecker.1, ocaml-options-only-nnpchecker.1, ocaml-variants.4.14.2+options
# 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+options
2026-01-19 18:19.39 ---> using "a4a54c9c18d48a1d73a2dd084e6769192a4c6057d5f883c4ab5ff393942b0f24" 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 18:19.39 ---> using "0266f8f9a6652cb612280ff4deffef0bd99be6c8ce1ce18b503eda1602032c8c" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-19 18:19.41 ---> saved as "685fce40ac670ed6d0c54ced39431e727091e4c920c9318c39770b2eb9987286"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-19 18:20.03 ---> saved as "cb96b392a3f1a0d422ffe5ba0dd9356f99d97204e354eac206611aa978622b1d"

/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 (1158 kB/s)
- Reading package lists...
- 
2026-01-19 18:20.05 ---> saved as "74c0c2de9abda91fb1242acc694a0f7e863e54e3f6cda1c2c0970e5d93a92928"

/home/opam: (run (shell "opam pin add -k version -yn ambient-context-eio.0.1.1 0.1.1"))
ambient-context-eio is now pinned to version 0.1.1
2026-01-19 18:20.06 ---> saved as "e001b4c5db98e659d6c020cdef4d649dd6316051ad1b812152fa6378b6eac1a1"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall ambient-context-eio.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 \"$pkg\" != 'ambient-context-eio.0.1.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
ambient-context-eio.0.1.1 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-options-only-nnpchecker -> ocaml-option-nnpchecker -> ocaml-variants >= 4.12.0~
    - ambient-context-eio >= 0.1.1 -> ocaml >= 5.0 -> ocaml-base-compiler < 5.3.2~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - ambient-context-eio >= 0.1.1 -> ocaml >= 5.0 -> dkml-base-compiler >= 5.4.1~ | ocaml-base-compiler >= 5.4.1~ | ocaml-system >= 5.4.1~ | ocaml-variants >= 5.4.1~
    no matching version
    no matching version
    no matching version
    not available because the package is pinned to version 4.14.2+options

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall ambient-context-eio.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 "$pkg" != 'ambient-context-eio.0.1.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-01-19 18:20.30: Job failed: Failed: Build failed
2026-01-19 18:20.30: Log analysis:
2026-01-19 18:20.30: >>> 
No solution found, exiting
 (score = 100)
2026-01-19 18:20.30: [SKIP] Package not available