(for PR #29348)

2026-02-06 23:05.49: New job: test json-data-encoding-browser.0.8 with js_of_ocaml.6.3.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29348/head (0e395cdb6b7b8c4427b82124387c6a5b953d1ac5)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29348/head" && git reset --hard 0e395cdb
git fetch origin master
git merge --no-edit 340ee6fd1ff10d0fce25e21ba1caca9ed1cfec68
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:7d9e98c625428dd7d1e2d0b79c4d9482fc6055a5b9600ca51f0c1d06a0604c30
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn js_of_ocaml.6.3.0 6.3.0
RUN opam reinstall js_of_ocaml.6.3.0; \
    res=$?; \
    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-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'js_of_ocaml.6.3.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN opam reinstall json-data-encoding-browser.0.8; \
    res=$?; \
    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 "$pkg" != 'json-data-encoding-browser.0.8' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test json-data-encoding-browser.0.8) || true
RUN opam reinstall --with-test --verbose json-data-encoding-browser.0.8; \
    res=$?; \
    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 "$pkg" != 'json-data-encoding-browser.0.8' && partial_fails="$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 23:05.49: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:7d9e98c625428dd7d1e2d0b79c4d9482fc6055a5b9600ca51f0c1d06a0604c30-js_of_ocaml.6.3.0-json-data-encoding-browser.0.8-0e395cdb6b7b8c4427b82124387c6a5b953d1ac5"
2026-02-06 23:05.49: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:7d9e98c625428dd7d1e2d0b79c4d9482fc6055a5b9600ca51f0c1d06a0604c30)
 (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.6.3.0 6.3.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall js_of_ocaml.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-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'js_of_ocaml.6.3.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall json-data-encoding-browser.0.8;\
             \n        res=$?;\
             \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 \"$pkg\" != 'json-data-encoding-browser.0.8' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test json-data-encoding-browser.0.8) || true"))
 (run (shell  "opam reinstall --with-test --verbose json-data-encoding-browser.0.8;\
             \n        res=$?;\
             \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 \"$pkg\" != 'json-data-encoding-browser.0.8' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-02-06 23:05.49: Waiting for resource in pool OCluster
2026-02-06 23:16.16: Waiting for worker…
2026-02-06 23:20.38: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
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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-13-ocaml-5.4@sha256:7d9e98c625428dd7d1e2d0b79c4d9482fc6055a5b9600ca51f0c1d06a0604c30)
2026-02-06 23:20.42 ---> using "d2c0f8ca6b78229a8736a1c58474579f9e8dd739d9f76726c83ac55b93330b8d" 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 23:20.42 ---> using "69810ef06594f572558730216193bfcbf6d78c5dd6cd0123071b1bf3727eef69" 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 23:20.42 ---> using "34638688fbfc2a101caaf841695d6077234ab6e7dc6819616e0b36882b03e972" 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       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 23:20.42 ---> using "b8c647d533a6cd445fb2824b35edcf53d5803abb85b8cd96436b13acc7e1f83c" 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 23:20.42 ---> using "e439e20016b1e5f6d830d3315d5f4c75b40b8430d7ab6b8dd9d289523fbd8158" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-06 23:20.43 ---> using "2c8de0acc324a0708bee15673f74c814a29fb2f1d71019120c1d8fb1bad30e2b" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-06 23:20.43 ---> using "8cbcf2482b5ed4529b0a8c99efa0c0cf808711c52def9259b2abf075683b8678" from cache

/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 [100 kB]
- Fetched 191 kB in 0s (1424 kB/s)
- Reading package lists...
- 
2026-02-06 23:20.43 ---> using "9e056061ff39562386224e1480324d2cb2d76a3f2cdcb631722ff4c948a8808d" from cache

/home/opam: (run (shell "opam pin add -k version -yn js_of_ocaml.6.3.0 6.3.0"))
js_of_ocaml is now pinned to version 6.3.0
2026-02-06 23:20.43 ---> using "782006e86708c6dd5cf2d11596afe233ae8a57848b0ca4ebafa06eba69b8aade" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall js_of_ocaml.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-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'js_of_ocaml.6.3.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
js_of_ocaml.6.3.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 18 packages
  - install cmdliner             2.1.0          [required by js_of_ocaml-compiler]
  - install dune                 3.21.0         [required by js_of_ocaml]
  - install gen                  1.1            [required by sedlex]
  - install js_of_ocaml          6.3.0 (pinned)
  - install js_of_ocaml-compiler 6.3.0          [required by js_of_ocaml]
  - 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]
  - 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)
-> retrieved js_of_ocaml.6.3.0, js_of_ocaml-compiler.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)
-> installed cmdliner.2.1.0
-> 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 menhirLib.20260203
-> installed gen.1.1
-> installed stdlib-shims.0.3.0
-> 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
Done.
# To update the current shell environment, run: eval $(opam env)
2026-02-06 23:20.43 ---> using "e7c5e10aedf353d78f5fb6812058627e4fb0cd20b668abb8ba8e8c243ba6b06f" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall json-data-encoding-browser.0.8;\
                        \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 \"$pkg\" != 'json-data-encoding-browser.0.8' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
json-data-encoding-browser.0.8 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== downgrade 1 package
  - downgrade yojson                     3.0.0 to 2.2.2
=== recompile 2 packages
  - recompile js_of_ocaml                6.3.0 (pinned) [uses js_of_ocaml-compiler]
  - recompile js_of_ocaml-compiler       6.3.0          [uses yojson]
=== install 9 packages
  - install   angstrom                   0.16.1         [required by uri]
  - install   bigstringaf                0.10.0         [required by angstrom]
  - install   csexp                      1.5.2          [required by dune-configurator]
  - install   dune-configurator          3.21.0         [required by bigstringaf]
  - install   json-data-encoding         0.8            [required by json-data-encoding-browser]
  - install   json-data-encoding-browser 0.8
  - install   ocaml-syntax-shims         1.0.0          [required by angstrom]
  - install   stringext                  1.6.0          [required by uri]
  - install   uri                        4.4.0          [required by json-data-encoding]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved angstrom.0.16.1  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> installed csexp.1.5.2
-> retrieved dune-configurator.3.21.0  (cached)
-> retrieved js_of_ocaml.6.3.0, js_of_ocaml-compiler.6.3.0  (cached)
-> retrieved json-data-encoding.0.8, json-data-encoding-browser.0.8  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved stringext.1.6.0  (cached)
-> retrieved uri.4.4.0  (cached)
-> retrieved yojson.2.2.2  (cached)
-> installed stringext.1.6.0
-> installed ocaml-syntax-shims.1.0.0
-> installed dune-configurator.3.21.0
-> removed   js_of_ocaml.6.3.0
-> removed   js_of_ocaml-compiler.6.3.0
-> removed   yojson.3.0.0
-> installed yojson.2.2.2
-> installed bigstringaf.0.10.0
-> installed angstrom.0.16.1
-> installed uri.4.4.0
-> installed json-data-encoding.0.8
-> installed js_of_ocaml-compiler.6.3.0
-> installed js_of_ocaml.6.3.0
-> installed json-data-encoding-browser.0.8
Done.
# To update the current shell environment, run: eval $(opam env)
2026-02-06 23:21.52 ---> saved as "1bd2cb0c0d37418f400ea981d3a7d89838e3b71e51ae1b96fac39285ed03d1d9"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test json-data-encoding-browser.0.8) || true"))
The following actions will be performed:
=== recompile 1 package
  - recompile json-data-encoding-browser 0.8

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved json-data-encoding-browser.0.8  (https://opam.ocaml.org/cache)
-> removed   json-data-encoding-browser.0.8
-> installed json-data-encoding-browser.0.8
Done.
# To update the current shell environment, run: eval $(opam env)
2026-02-06 23:21.58 ---> saved as "f24a7d9dfc80785006af1b62d51b70f268dee4b2a8ac174bea2ca6a66da70eba"

/home/opam: (run (shell  "opam reinstall --with-test --verbose json-data-encoding-browser.0.8;\
                        \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 \"$pkg\" != 'json-data-encoding-browser.0.8' && partial_fails=\"$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 json-data-encoding-browser 0.8

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/4: [json-data-encoding-browser.0.8: extract]
-> retrieved json-data-encoding-browser.0.8  (cached)
Processing  2/4: [json-data-encoding-browser: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-j" "71" "-p" "json-data-encoding-browser" (CWD=/home/opam/.opam/5.4/.opam-switch/build/json-data-encoding-browser.0.8)
- File "dune-project", line 3, characters 11-14:
- 3 | (using fmt 1.2)
-                ^^^
- Warning: Version 1.2 of integration with automatic formatters is not
- supported until version 1.11 of the dune language.
- Supported versions of this extension in version 1.7 of the dune language:
- - 1.0 to 1.1
- (cd _build/default && /home/opam/.opam/5.4/bin/ocamlc.opt -w -40 -w -9 -open Js_of_ocaml -g -bin-annot -bin-annot-occurrences -I src/.json_data_encoding_browser.objs/byte -I /home/opam/.opam/5.4/lib/angstrom -I /home/opam/.opam/5.4/lib/bigstringaf -I /home/opam/.opam/5.4/lib/js_of_ocaml -I /home/opam/.opam/5.4/lib/js_of_ocaml-compiler/runtime -I /home/opam/.opam/5.4/lib/json-data-encoding -I /home/opam/.opam/5.4/lib/stringext -I /home/opam/.opam/5.4/lib/uri -cmi-file src/.json_data_encoding_browser.objs/byte/json_repr_browser.cmi -no-alias-deps -o src/.json_data_encoding_browser.objs/byte/json_repr_browser.cmo -c -impl src/json_repr_browser.ml)
- File "src/json_repr_browser.ml", line 78, characters 5-23:
- 78 |     (Js.Unsafe.variable "JSON")
-           ^^^^^^^^^^^^^^^^^^
- Alert deprecated: Js_of_ocaml.Js.Unsafe.variable
- [since 2.6] use Js.Unsafe.pure_js_expr instead
- 
- File "src/json_repr_browser.ml", line 90, characters 5-23:
- 90 |     (Js.Unsafe.variable "JSON")
-           ^^^^^^^^^^^^^^^^^^
- Alert deprecated: Js_of_ocaml.Js.Unsafe.variable
- [since 2.6] use Js.Unsafe.pure_js_expr instead
- (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w -40 -w -9 -open Js_of_ocaml -g -I src/.json_data_encoding_browser.objs/byte -I src/.json_data_encoding_browser.objs/native -I /home/opam/.opam/5.4/lib/angstrom -I /home/opam/.opam/5.4/lib/bigstringaf -I /home/opam/.opam/5.4/lib/js_of_ocaml -I /home/opam/.opam/5.4/lib/js_of_ocaml-compiler/runtime -I /home/opam/.opam/5.4/lib/json-data-encoding -I /home/opam/.opam/5.4/lib/stringext -I /home/opam/.opam/5.4/lib/uri -cmi-file src/.json_data_encoding_browser.objs/byte/json_repr_browser.cmi -no-alias-deps -o src/.json_data_encoding_browser.objs/native/json_repr_browser.cmx -c -impl src/json_repr_browser.ml)
- File "src/json_repr_browser.ml", line 78, characters 5-23:
- 78 |     (Js.Unsafe.variable "JSON")
-           ^^^^^^^^^^^^^^^^^^
- Alert deprecated: Js_of_ocaml.Js.Unsafe.variable
- [since 2.6] use Js.Unsafe.pure_js_expr instead
- 
- File "src/json_repr_browser.ml", line 90, characters 5-23:
- 90 |     (Js.Unsafe.variable "JSON")
-           ^^^^^^^^^^^^^^^^^^
- Alert deprecated: Js_of_ocaml.Js.Unsafe.variable
- [since 2.6] use Js.Unsafe.pure_js_expr instead
-> compiled  json-data-encoding-browser.0.8
-> removed   json-data-encoding-browser.0.8
-> installed json-data-encoding-browser.0.8
Done.
# To update the current shell environment, run: eval $(opam env)
2026-02-06 23:22.04 ---> saved as "b6d5c220c22d7f234843588bc18e8fa305d3e2bc6eacffd99946116733f5c80a"
Job succeeded
2026-02-06 23:22.12: Job succeeded