(lower-bound)

2026-03-14 10:13.09: New job: test janestreet/spawn https://github.com/janestreet/spawn.git#refs/heads/master (fe3419b0db20819d7a31383544971e48a6dff20a) (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/janestreet/spawn.git" -b "master" && cd "spawn" && git reset --hard fe3419b0
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 spawn.opam ./
RUN opam pin add -yn spawn.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="base.v0.12.2 base-bigarray.base base-threads.base base-unix.base dune.2.9.3 dune-configurator.2.5.1 dune-private-libs.2.5.1 fieldslib.v0.12.0 jbuilder.1.0+beta20.1 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.1.3.1 ppx_assert.v0.12.0 ppx_compare.v0.12.0 ppx_custom_printf.v0.12.1 ppx_derivers.1.0 ppx_expect.v0.12.0 ppx_fields_conv.v0.12.0 ppx_here.v0.12.0 ppx_inline_test.v0.12.0 ppx_sexp_conv.v0.12.0 ppx_variants_conv.v0.12.0 ppxlib.0.8.1 re.1.8.0 result.1.5 seq.0.3 sexplib0.v0.12.0 stdio.v0.12.0 variantslib.v0.12.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y spawn.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 10:13.09: Using cache hint "janestreet/spawn-ocaml/opam:debian-13-ocaml-4.08@sha256:048f41796adc21a1c591ba8a7027365f75adbd0cc47a89cb4ad5d856f4815f47-debian-13-4.08_opam-2.5-298a478db898cf89aad995b4a7eb5962"
2026-03-14 10:13.09: 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 spawn.opam) (dst ./))
(run (network host)
(shell "opam pin add -yn spawn.dev './'"))
(run (shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "base.v0.12.2 base-bigarray.base base-threads.base base-unix.base dune.2.9.3 dune-configurator.2.5.1 dune-private-libs.2.5.1 fieldslib.v0.12.0 jbuilder.1.0+beta20.1 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.1.3.1 ppx_assert.v0.12.0 ppx_compare.v0.12.0 ppx_custom_printf.v0.12.1 ppx_derivers.1.0 ppx_expect.v0.12.0 ppx_fields_conv.v0.12.0 ppx_here.v0.12.0 ppx_inline_test.v0.12.0 ppx_sexp_conv.v0.12.0 ppx_variants_conv.v0.12.0 ppxlib.0.8.1 re.1.8.0 result.1.5 seq.0.3 sexplib0.v0.12.0 stdio.v0.12.0 variantslib.v0.12.0")
(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 spawn.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 10:13.09: Waiting for resource in pool OCluster
2026-03-14 10:17.33: Waiting for worker…
2026-03-14 10:18.59: Got resource from pool OCluster
Building on odawa.caelum.ci.dev
All commits already cached
HEAD is now at fe3419b Do not require C99 mode for older GCC (#62)


(from ocaml/opam:debian-13-ocaml-4.08@sha256:048f41796adc21a1c591ba8a7027365f75adbd0cc47a89cb4ad5d856f4815f47)
2026-03-14 10:18.59 ---> 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 10:18.59 ---> 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 10:18.59 ---> using "ccdab575862d9a949d4903bc8aad034b89b0a05240bdda721b9ce0cce4230d75" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-87-generic
The OCaml toplevel, version 4.08.1
2.5.0
2026-03-14 10:18.59 ---> using "f19adf73b8544d8f3f9b81cecf006440779a1d47bca42b32961acb7a712c1b5f" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-03-14 10:18.59 ---> 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 10:18.59 ---> using "b3e02a1ba3f82e7ec96f8d839a408a2515d3bc782ff8f9b3a0a2c3cefea54e28" from cache


/src: (copy (src spawn.opam) (dst ./))
2026-03-14 10:18.59 ---> using "1ab721f92e04dc8b495b73a77c5f854b92c9a1d5f258e04e4bf62c3016a97539" from cache


/src: (run (network host)
(shell "opam pin add -yn spawn.dev './'"))
[spawn.dev] synchronised (file:///src)
spawn is now pinned to file:///src (version dev)
2026-03-14 10:19.01 ---> saved as "5883615b6c48d36816f9cbcfee3f3996d904e62fdd5f432fb518c2744bffe24a"


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-03-14 10:19.01 ---> saved as "3add8eb22162fe9d30ab9e6d5738fdd5709a8e17fffa97afd336547f0c36519f"


/src: (env DEPS "base.v0.12.2 base-bigarray.base base-threads.base base-unix.base dune.2.9.3 dune-configurator.2.5.1 dune-private-libs.2.5.1 fieldslib.v0.12.0 jbuilder.1.0+beta20.1 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.1.3.1 ppx_assert.v0.12.0 ppx_compare.v0.12.0 ppx_custom_printf.v0.12.1 ppx_derivers.1.0 ppx_expect.v0.12.0 ppx_fields_conv.v0.12.0 ppx_here.v0.12.0 ppx_inline_test.v0.12.0 ppx_sexp_conv.v0.12.0 ppx_variants_conv.v0.12.0 ppxlib.0.8.1 re.1.8.0 result.1.5 seq.0.3 sexplib0.v0.12.0 stdio.v0.12.0 variantslib.v0.12.0")


/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 spawn.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 (2400 kB/s)
- Reading package lists...


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[spawn.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).
# To update the current shell environment, run: eval $(opam env)
2026-03-14 10:19.10 ---> saved as "e898dcfc304bb2f3d0b40a12ddb11e831e549b35490a8f8c35f1ca9ef06b2054"


/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 25 packages
- install base                    v0.12.2
- install dune                    2.9.3
- install dune-configurator       2.5.1
- install dune-private-libs       2.5.1
- install fieldslib               v0.12.0
- install jbuilder                1.0+beta20.1 (deprecated)
- install ocaml-compiler-libs     v0.11.0
- install ocaml-migrate-parsetree 1.3.1 (deprecated)
- install ppx_assert              v0.12.0
- install ppx_compare             v0.12.0
- install ppx_custom_printf       v0.12.1
- install ppx_derivers            1.0
- install ppx_expect              v0.12.0
- install ppx_fields_conv         v0.12.0
- install ppx_here                v0.12.0
- install ppx_inline_test         v0.12.0
- install ppx_sexp_conv           v0.12.0
- install ppx_variants_conv       v0.12.0
- install ppxlib                  0.8.1
- install re                      1.8.0
- install result                  1.5
- install seq                     0.3
- install sexplib0                v0.12.0
- install stdio                   v0.12.0
- install variantslib             v0.12.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved base.v0.12.2  (cached)
-> retrieved dune.2.9.3  (cached)
-> retrieved dune-configurator.2.5.1, dune-private-libs.2.5.1  (cached)
-> retrieved fieldslib.v0.12.0  (cached)
-> retrieved jbuilder.1.0+beta20.1  (cached)
-> retrieved ocaml-compiler-libs.v0.11.0  (cached)
-> retrieved ocaml-migrate-parsetree.1.3.1  (cached)
-> retrieved ppx_assert.v0.12.0  (cached)
-> retrieved ppx_compare.v0.12.0  (cached)
-> retrieved ppx_custom_printf.v0.12.1  (cached)
-> retrieved ppx_derivers.1.0  (cached)
-> retrieved ppx_fields_conv.v0.12.0  (cached)
-> retrieved ppx_expect.v0.12.0  (cached)
-> retrieved ppx_here.v0.12.0  (cached)
-> retrieved ppx_inline_test.v0.12.0  (cached)
-> retrieved ppx_sexp_conv.v0.12.0  (cached)
-> retrieved ppx_variants_conv.v0.12.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved seq.0.3  (cached)
-> retrieved re.1.8.0  (cached)
-> retrieved ppxlib.0.8.1  (cached)
-> retrieved sexplib0.v0.12.0  (cached)
-> retrieved stdio.v0.12.0  (cached)
-> retrieved variantslib.v0.12.0  (cached)
-> installed jbuilder.1.0+beta20.1
-> installed ppx_derivers.1.0
-> installed dune.2.9.3
-> installed ocaml-compiler-libs.v0.11.0
-> installed seq.0.3
-> installed result.1.5
-> installed sexplib0.v0.12.0
-> installed re.1.8.0
-> installed dune-private-libs.2.5.1
-> installed ocaml-migrate-parsetree.1.3.1
-> installed dune-configurator.2.5.1
-> installed base.v0.12.2
-> installed variantslib.v0.12.0
-> installed fieldslib.v0.12.0
-> installed stdio.v0.12.0
-> installed ppxlib.0.8.1
-> installed ppx_here.v0.12.0
-> installed ppx_variants_conv.v0.12.0
-> installed ppx_fields_conv.v0.12.0
-> installed ppx_compare.v0.12.0
-> installed ppx_sexp_conv.v0.12.0
-> installed ppx_inline_test.v0.12.0
-> installed ppx_assert.v0.12.0
-> installed ppx_custom_printf.v0.12.1
-> installed ppx_expect.v0.12.0
Done.


<><> ocaml-migrate-parsetree.1.3.1 installed successfully <><><><><><><><><><><>
=> Note: This package is deprecated.


<><> 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 10:19.56 ---> saved as "175f03621540bb088c72440fe37dfdc3a83ffaa122b89ef40d5dce019cd1ee0c"


/src: (copy (src .) (dst /src))
2026-03-14 10:19.56 ---> saved as "887f4ba2b02788c684571dfd9fba0e13eb8edc396fb25fc8e842da0027c7a66e"


/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/re/re.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/re/emacs/re.emacs.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/re/glob/re.glob.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/re/pcre/re.pcre.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/re/perl/re.perl.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/re/posix/re.posix.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/re/str/re.str.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 "bench/dune", line 5, characters 7-16:
5 |   (pps ppx_bench)))
^^^^^^^^^
Error: Library "ppx_bench" not found.
Hint: try:
dune external-lib-deps --missing @install @check @runtest
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2026-03-14 10:19.58: Job failed: Failed: Build failed