(lower-bound)

2026-03-14 10:13.10: New job: test ocaml-ppx/ppx_deriving_yojson https://github.com/ocaml-ppx/ppx_deriving_yojson.git#refs/heads/master (1a4b06d2045ed91f30d72cdd8cce7d002c3c2503) (linux-x86_64:(lower-bound))
Base: ocaml/opam:debian-13-ocaml-4.08@sha256:048f41796adc21a1c591ba8a7027365f75adbd0cc47a89cb4ad5d856f4815f47
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-ppx/ppx_deriving_yojson.git" -b "master" && cd "ppx_deriving_yojson" && git reset --hard 1a4b06d2
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.08@sha256:048f41796adc21a1c591ba8a7027365f75adbd0cc47a89cb4ad5d856f4815f47
# debian-13-4.08_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN cd ~/opam-repository && (git cat-file -e 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 ppx_deriving_yojson.opam ./
RUN opam pin add -yn ppx_deriving_yojson.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="base-bigarray.base base-bytes.base base-threads.base base-unix.base biniou.1.2.0 conf-m4.1 conf-which.1 cppo.1.6.1 dune.3.10.0 easy-format.1.0.1 jbuilder.1.0+beta20.1 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocamlfind.1.8.0 ounit2.2.2.0 ppx_derivers.1.0 ppx_deriving.6.1.0 ppxlib.0.37.0 sexplib0.v0.12.0 stdlib-shims.0.1.0 yojson.1.6.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y ppx_deriving_yojson.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /src
RUN opam exec -- dune build @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2026-03-14 10:13.10: Using cache hint "ocaml-ppx/ppx_deriving_yojson-ocaml/opam:debian-13-ocaml-4.08@sha256:048f41796adc21a1c591ba8a7027365f75adbd0cc47a89cb4ad5d856f4815f47-debian-13-4.08_opam-2.5-46958f5eef757cce50f2dbf4f76b0684"
2026-03-14 10:13.10: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.08@sha256:048f41796adc21a1c591ba8a7027365f75adbd0cc47a89cb4ad5d856f4815f47)
(comment debian-13-4.08_opam-2.5)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
(run (shell "opam init --reinit -ni"))
(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
(workdir /src)
(run (shell "sudo chown opam /src"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src ppx_deriving_yojson.opam) (dst ./))
(run (network host)
(shell "opam pin add -yn ppx_deriving_yojson.dev './'"))
(run (shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "base-bigarray.base base-bytes.base base-threads.base base-unix.base biniou.1.2.0 conf-m4.1 conf-which.1 cppo.1.6.1 dune.3.10.0 easy-format.1.0.1 jbuilder.1.0+beta20.1 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocamlfind.1.8.0 ounit2.2.2.0 ppx_derivers.1.0 ppx_deriving.6.1.0 ppxlib.0.37.0 sexplib0.v0.12.0 stdlib-shims.0.1.0 yojson.1.6.0")
(env CI true)
(env OCAMLCI true)
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y ppx_deriving_yojson.dev $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /src))
(run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
)


2026-03-14 10:13.10: Waiting for resource in pool OCluster
2026-03-14 10:17.55: Waiting for worker…
2026-03-14 10:19.26: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 1a4b06d Remove the disclaimer to not use ppx_deriving_yojson from the README


(from ocaml/opam:debian-13-ocaml-4.08@sha256:048f41796adc21a1c591ba8a7027365f75adbd0cc47a89cb4ad5d856f4815f47)
2026-03-14 10:19.30 ---> using "867303d7f04cee0d3e23016229d2a45a69516628a14dbff52754cd3cb283f66f" from cache


/: (comment debian-13-4.08_opam-2.5)


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


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
2026-03-14 10:19.30 ---> using "c7be1a1bf56a9af41378ced74906e3276ce5576096fe479f7bc8725acfbd5123" from cache


/src: (run (shell "opam init --reinit -ni"))
Configuring from /home/opam/.opamrc and then 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
[NOTE] The 'jobs' option was reset, its value was 71 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
opam option jobs=71 --global
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-03-14 10:19.30 ---> using "ccdab575862d9a949d4903bc8aad034b89b0a05240bdda721b9ce0cce4230d75" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-101-generic
The OCaml toplevel, version 4.08.1
2.5.0
2026-03-14 10:19.31 ---> using "f19adf73b8544d8f3f9b81cecf006440779a1d47bca42b32961acb7a712c1b5f" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-03-14 10:19.32 ---> using "edbc028d6daadd2aebe00894d268f0d76ea78071faf901b745bf45b52fda2d76" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
ffb54b9bdd..f2e7a221a1  master     -> origin/master
31462e7d24 Merge pull request #29451 from dra27/relocatable-package


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file:///home/opam/opam-repository


Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).
However, you may "opam upgrade" these packages explicitly at these versions (e.g. "opam upgrade ocaml.5.5.0"), which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2026-03-14 10:19.33 ---> using "b3e02a1ba3f82e7ec96f8d839a408a2515d3bc782ff8f9b3a0a2c3cefea54e28" from cache


/src: (copy (src ppx_deriving_yojson.opam) (dst ./))
2026-03-14 10:19.36 ---> saved as "fb064d89c95531a002b0c96e2e0ea89440fda090ca9f99ca9d6e2260c8204be8"


/src: (run (network host)
(shell "opam pin add -yn ppx_deriving_yojson.dev './'"))
[ppx_deriving_yojson.dev] synchronised (file:///src)
ppx_deriving_yojson is now pinned to file:///src (version dev)
2026-03-14 10:19.42 ---> saved as "dffcc2548b6873642abbcb978de2059fd9f545e1ee38a5fcabd9b053458f3ab9"


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-03-14 10:19.45 ---> saved as "ad96c749f7835facb2aa4fff8e9d9659b42c9f31ea431b4a6fda8ab71a46d629"


/src: (env DEPS "base-bigarray.base base-bytes.base base-threads.base base-unix.base biniou.1.2.0 conf-m4.1 conf-which.1 cppo.1.6.1 dune.3.10.0 easy-format.1.0.1 jbuilder.1.0+beta20.1 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocamlfind.1.8.0 ounit2.2.2.0 ppx_derivers.1.0 ppx_deriving.6.1.0 ppxlib.0.37.0 sexplib0.v0.12.0 stdlib-shims.0.1.0 yojson.1.6.0")


/src: (env CI true)


/src: (env OCAMLCI true)


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y ppx_deriving_yojson.dev $DEPS"))
+ /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 [111 kB]
- Fetched 202 kB in 0s (1825 kB/s)
- Reading package lists...


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[ppx_deriving_yojson.dev] synchronised (file:///src)


[NOTE] Package ocaml-config is already installed (current version is 1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 4.08.1).
[NOTE] Package ocaml is already installed (current version is 4.08.1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).


The following system packages will first need to be installed:
m4


<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>


+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "m4"
- Selecting previously unselected package m4.
- (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20623 files and directories currently installed.)
- Preparing to unpack .../archives/m4_1.4.19-8_amd64.deb ...
- Unpacking m4 (1.4.19-8) ...
- Setting up m4 (1.4.19-8) ...
# To update the current shell environment, run: eval $(opam env)
2026-03-14 10:20.04 ---> saved as "ba3357243de93f6db166800fe92825c0cadff1a805f865b02b37bc070ef72a51"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
[NOTE] Package ocaml-config is already installed (current version is 1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 4.08.1).
[NOTE] Package ocaml is already installed (current version is 4.08.1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 17 packages
- install base-bytes          base
- install biniou              1.2.0
- install conf-m4             1
- install conf-which          1
- install cppo                1.6.1
- install dune                3.10.0
- install easy-format         1.0.1
- install jbuilder            1.0+beta20.1 (deprecated)
- install ocaml-compiler-libs v0.11.0
- install ocamlfind           1.8.0
- install ounit2              2.2.0
- install ppx_derivers        1.0
- install ppx_deriving        6.1.0
- install ppxlib              0.37.0
- install sexplib0            v0.12.0
- install stdlib-shims        0.1.0
- install yojson              1.6.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved biniou.1.2.0  (cached)
-> retrieved cppo.1.6.1  (cached)
-> retrieved dune.3.10.0  (cached)
-> installed conf-m4.1
-> installed conf-which.1
-> retrieved easy-format.1.0.1  (cached)
-> retrieved jbuilder.1.0+beta20.1  (cached)
-> retrieved ocaml-compiler-libs.v0.11.0  (cached)
-> retrieved ocamlfind.1.8.0  (cached)
-> retrieved ounit2.2.2.0  (cached)
-> retrieved ppx_derivers.1.0  (cached)
-> retrieved sexplib0.v0.12.0  (cached)
-> retrieved stdlib-shims.0.1.0  (cached)
-> retrieved yojson.1.6.0  (cached)
-> retrieved ppx_deriving.6.1.0  (https://opam.ocaml.org/cache)
-> retrieved ppxlib.0.37.0  (cached)
-> installed ocamlfind.1.8.0
-> installed base-bytes.base
-> installed easy-format.1.0.1
-> installed jbuilder.1.0+beta20.1
-> installed ppx_derivers.1.0
-> installed biniou.1.2.0
-> installed cppo.1.6.1
-> installed ocaml-compiler-libs.v0.11.0
-> installed dune.3.10.0
-> installed stdlib-shims.0.1.0
-> installed sexplib0.v0.12.0
-> installed ounit2.2.2.0
-> installed yojson.1.6.0
-> installed ppxlib.0.37.0
-> installed ppx_deriving.6.1.0
Done.


<><> jbuilder.1.0+beta20.1 installed successfully <><><><><><><><><><><><><><><>
=> Note: This package is deprecated.
# To update the current shell environment, run: eval $(opam env)
2026-03-14 10:20.50 ---> saved as "ec447d2e5924ee1a786bbf3d1f95795cf4acf26478b363760a817baa4798add9"


/src: (copy (src .) (dst /src))
2026-03-14 10:20.57 ---> saved as "183b0b6f0b945fb408898a34ba0f10e128b3fad17f55ece20d526a64e5876790"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
File "/home/opam/.opam/4.08/lib/ocaml-compiler-libs/bytecomp/ocaml-compiler-libs.bytecomp.dune", line 1, characters 0-0:
Warning: .dune files are ignored since 2.0. Reinstall the library with dune
>= 2.0 to get rid of this warning and enable support for the subsystem this
library provides.
File "/home/opam/.opam/4.08/lib/ocaml-compiler-libs/common/ocaml-compiler-libs.common.dune", line 1, characters 0-0:
Warning: .dune files are ignored since 2.0. Reinstall the library with dune
>= 2.0 to get rid of this warning and enable support for the subsystem this
library provides.
File "/home/opam/.opam/4.08/lib/ocaml-compiler-libs/shadow/ocaml-compiler-libs.shadow.dune", line 1, characters 0-0:
Warning: .dune files are ignored since 2.0. Reinstall the library with dune
>= 2.0 to get rid of this warning and enable support for the subsystem this
library provides.
File "/home/opam/.opam/4.08/lib/ocaml-compiler-libs/toplevel/ocaml-compiler-libs.toplevel.dune", line 1, characters 0-0:
Warning: .dune files are ignored since 2.0. Reinstall the library with dune
>= 2.0 to get rid of this warning and enable support for the subsystem this
library provides.
File "/home/opam/.opam/4.08/lib/ppx_derivers/ppx_derivers.dune", line 1, characters 0-0:
Warning: .dune files are ignored since 2.0. Reinstall the library with dune
>= 2.0 to get rid of this warning and enable support for the subsystem this
library provides.
File "/home/opam/.opam/4.08/lib/biniou/biniou.dune", line 1, characters 0-0:
Warning: .dune files are ignored since 2.0. Reinstall the library with dune
>= 2.0 to get rid of this warning and enable support for the subsystem this
library provides.
(cd _build/default/src_test && ./test_ppx_yojson.exe)
....................................
Ran: 36 tests in: 2.21 seconds.
OK
2026-03-14 10:21.07 ---> saved as "d566b4ccca548c12f85e7641d5ce34ccdd1f0909b52afc77dd61f480d3fb68a8"
Job succeeded
2026-03-14 10:21.14: Job succeeded