(for PR #29348)

2026-02-06 22:47.59: New job: build js_of_ocaml-ppx_deriving_json.6.3.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29348/head (0e395cdb6b7b8c4427b82124387c6a5b953d1ac5)
                              on debian-unstable-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29348/head" && git reset --hard 0e395cdb
git fetch origin master
git merge --no-edit 340ee6fd1ff10d0fce25e21ba1caca9ed1cfec68
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-unstable-ocaml-5.4@sha256:a054bb49759d0a15992de4aa713c810ad1264146dab8e0f9ed4110c98d0cf14d
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn js_of_ocaml-ppx_deriving_json.6.3.0 6.3.0
RUN opam reinstall js_of_ocaml-ppx_deriving_json.6.3.0; \
    res=$?; \
    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 "$pkg" != 'js_of_ocaml-ppx_deriving_json.6.3.0' && partial_fails="$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 .

2026-02-06 22:47.59: Using cache hint "ocaml/opam:debian-unstable-ocaml-5.4@sha256:a054bb49759d0a15992de4aa713c810ad1264146dab8e0f9ed4110c98d0cf14d-js_of_ocaml-ppx_deriving_json.6.3.0-0e395cdb6b7b8c4427b82124387c6a5b953d1ac5"
2026-02-06 22:47.59: Using OBuilder spec:
((from ocaml/opam:debian-unstable-ocaml-5.4@sha256:a054bb49759d0a15992de4aa713c810ad1264146dab8e0f9ed4110c98d0cf14d)
 (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 js_of_ocaml-ppx_deriving_json.6.3.0 6.3.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall js_of_ocaml-ppx_deriving_json.6.3.0;\
             \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 \"$pkg\" != 'js_of_ocaml-ppx_deriving_json.6.3.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-02-06 22:47.59: Waiting for resource in pool OCluster
2026-02-06 22:48.04: Waiting for worker…
2026-02-06 22:51.48: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 340ee6fd1f Merge pull request #29341 from Halbaroth/release-alt-ergo-free-2.4.3
Updating 340ee6fd1f..0e395cdb6b
Fast-forward
 .../js_of_ocaml-compiler.6.3.0/opam                | 57 +++++++++++++++++++++
 .../js_of_ocaml-lwt/js_of_ocaml-lwt.6.3.0/opam     | 47 ++++++++++++++++++
 .../js_of_ocaml-ppx/js_of_ocaml-ppx.6.3.0/opam     | 45 +++++++++++++++++
 .../js_of_ocaml-ppx_deriving_json.6.3.0/opam       | 45 +++++++++++++++++
 .../js_of_ocaml-toplevel.6.3.0/opam                | 47 ++++++++++++++++++
 .../js_of_ocaml-tyxml/js_of_ocaml-tyxml.6.3.0/opam | 48 ++++++++++++++++++
 packages/js_of_ocaml/js_of_ocaml.6.3.0/opam        | 45 +++++++++++++++++
 .../wasm_of_ocaml-compiler.6.3.0/opam              | 58 ++++++++++++++++++++++
 8 files changed, 392 insertions(+)
 create mode 100644 packages/js_of_ocaml-compiler/js_of_ocaml-compiler.6.3.0/opam
 create mode 100644 packages/js_of_ocaml-lwt/js_of_ocaml-lwt.6.3.0/opam
 create mode 100644 packages/js_of_ocaml-ppx/js_of_ocaml-ppx.6.3.0/opam
 create mode 100644 packages/js_of_ocaml-ppx_deriving_json/js_of_ocaml-ppx_deriving_json.6.3.0/opam
 create mode 100644 packages/js_of_ocaml-toplevel/js_of_ocaml-toplevel.6.3.0/opam
 create mode 100644 packages/js_of_ocaml-tyxml/js_of_ocaml-tyxml.6.3.0/opam
 create mode 100644 packages/js_of_ocaml/js_of_ocaml.6.3.0/opam
 create mode 100644 packages/wasm_of_ocaml-compiler/wasm_of_ocaml-compiler.6.3.0/opam

(from ocaml/opam:debian-unstable-ocaml-5.4@sha256:a054bb49759d0a15992de4aa713c810ad1264146dab8e0f9ed4110c98d0cf14d)
2026-02-06 22:52.17 ---> using "790b77bc05849535ca33c2857dbe0bd41e30b44b97b3b49c4a407c00a7289d5c" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-02-06 22:52.17 ---> using "13ab3de6f863aaa479b567e0f2d05564a98208ade134c30b8c4e7a002a617684" 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
2026-02-06 22:52.17 ---> using "37ef3a8be886da5d54674b2777cb13f3bbc79214d61aa3f70d1b8a1da7c7e118" 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=unknown
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 255
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# invariant            ["ocaml-base-compiler" {>= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2026-02-06 22:52.17 ---> using "25f445326f7acb6a9aa73819f5048f78093af92329391579a2900cbd3620289d" 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/"))
2026-02-06 22:52.17 ---> using "06a63412b7158541a556dc29a166c7e086b25983c8b8621091a4b46a4e56d096" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-06 22:52.26 ---> saved as "a5aa09b27880198d251b555ede62dd70efb26268173b88b84c9aaaec39f7315f"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-06 22:52.50 ---> saved as "fe62433f47895864f0c9e694a377b3d74226e31e220b615125cd6b78cd14a246"

/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-2026-02-06-2003.43-F-2026-01-30-2002.22.pdiff [492 kB]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2026-02-06-2003.43-F-2026-01-30-2002.22.pdiff [492 kB]
- Fetched 742 kB in 2s (495 kB/s)
- Reading package lists...
- 
2026-02-06 22:52.53 ---> saved as "ed11bc4b3efc8a2d2c3241f9fe31415bfb5fece2b5af933ab93042343695bc07"

/home/opam: (run (shell "opam pin add -k version -yn js_of_ocaml-ppx_deriving_json.6.3.0 6.3.0"))
js_of_ocaml-ppx_deriving_json is now pinned to version 6.3.0
2026-02-06 22:52.54 ---> saved as "6de9847f209c72b42fe50b1e8d70d8d521e4b405582a4b22d2c07000e067c6de"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall js_of_ocaml-ppx_deriving_json.6.3.0;\
                        \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 \"$pkg\" != 'js_of_ocaml-ppx_deriving_json.6.3.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
js_of_ocaml-ppx_deriving_json.6.3.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 19 packages
  - install cmdliner                      2.1.0          [required by js_of_ocaml-compiler]
  - install dune                          3.21.0         [required by js_of_ocaml-ppx_deriving_json]
  - install gen                           1.1            [required by sedlex]
  - install js_of_ocaml                   6.3.0          [required by js_of_ocaml-ppx_deriving_json]
  - install js_of_ocaml-compiler          6.3.0          [required by js_of_ocaml]
  - install js_of_ocaml-ppx_deriving_json 6.3.0 (pinned)
  - install menhir                        20260203       [required by js_of_ocaml-compiler]
  - install menhirCST                     20260203       [required by menhir]
  - install menhirGLR                     20260203       [required by menhir]
  - install menhirLib                     20260203       [required by js_of_ocaml-compiler]
  - install menhirSdk                     20260203       [required by js_of_ocaml-compiler]
  - install ocaml-compiler-libs           v0.17.0        [required by js_of_ocaml-compiler]
  - install ppx_derivers                  1.2.1          [required by ppxlib]
  - install ppxlib                        0.37.0         [required by js_of_ocaml-ppx_deriving_json]
  - install sedlex                        3.7            [required by js_of_ocaml-compiler]
  - install seq                           base           [required by gen]
  - install sexplib0                      v0.17.0        [required by ppxlib]
  - install stdlib-shims                  0.3.0          [required by ppxlib]
  - install yojson                        3.0.0          [required by js_of_ocaml-compiler]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved dune.3.21.0  (cached)
-> retrieved gen.1.1  (cached)
-> installed cmdliner.2.1.0
-> retrieved js_of_ocaml.6.3.0, js_of_ocaml-compiler.6.3.0, js_of_ocaml-ppx_deriving_json.6.3.0  (cached)
-> retrieved menhir.20260203, menhirCST.20260203, menhirGLR.20260203, menhirLib.20260203, menhirSdk.20260203  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppxlib.0.37.0  (cached)
-> retrieved sedlex.3.7  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved yojson.3.0.0  (cached)
-> installed dune.3.21.0
-> installed menhirCST.20260203
-> installed ppx_derivers.1.2.1
-> installed menhirGLR.20260203
-> installed gen.1.1
-> installed stdlib-shims.0.3.0
-> installed menhirLib.20260203
-> installed menhirSdk.20260203
-> installed sexplib0.v0.17.0
-> installed ocaml-compiler-libs.v0.17.0
-> installed yojson.3.0.0
-> installed menhir.20260203
-> installed ppxlib.0.37.0
-> installed sedlex.3.7
-> installed js_of_ocaml-compiler.6.3.0
-> installed js_of_ocaml.6.3.0
-> installed js_of_ocaml-ppx_deriving_json.6.3.0
Done.
# To update the current shell environment, run: eval $(opam env)
2026-02-06 22:54.19 ---> saved as "9c27e9db88b01d7d5c888e4ea54ec6e57b9385124bfcf9a1a41965eed9cc5769"
Job succeeded
2026-02-06 22:54.28: Job succeeded