Building on ltsc2025-3
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-08 02:39.13 ---> using "63e5ddb9687855d0a0c4c5e0088f813758807605401f3a88b07751088826ddff" from cache
C:/: (user (uid 1000) (gid 1000))
C:/: (env OPAMPRECISETRACKING 1)
C:/: (env OPAMUTF8 never)
C:/: (env OPAMEXTERNALSOLVER builtin-0install)
C:/: (env OPAMCRITERIA +removed)
C:/: (env CI true)
C:/: (env OPAM_HEALTH_CHECK_CI true)
C:/: (run (shell "ln -f /usr/local/bin/opam-dev.exe /usr/local/bin/opam.exe"))
2026-03-08 02:39.13 ---> using "eb751f1617949fccf400da87a349c508e73323f3f0e3482f2cce8c46fbcb6c21" from cache
C:/: (run (network host)
(shell "rm -rf ~/opam-repository && git clone -q 'https://github.com/ocaml/opam-repository' ~/opam-repository && git -C ~/opam-repository checkout -q 31db989bcaf14647d9889b8903120d6202ac37a8"))
2026-03-08 02:39.13 ---> using "ef58fca6f6db70f2bdfd85579892df7c50e047d2e179a3be59dcaa5c5a2d773c" from cache
C:/: (run (shell "rm -rf ~/.opam && opam init -ya --bare ~/opam-repository"))
User configuration:
Updating ~\.bashrc.
[NOTE] Make sure that ~/.bashrc is well sourced in your ~\.bash_profile.
Added 9 lines after line 1 in ~\.bashrc.
2026-03-08 02:39.13 ---> using "c700dfaf6f2da6800841bb961abfee8cd8858dee38ab51c0793b149f1795270d" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam switch create --repositories=default 'mingw-5.4' '5.4.0'"))
<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
Switch invariant: ["ocaml-base-compiler" {= "5.4.0"}]
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed arch-x86_64.1
-> installed base-bigarray.base
-> installed base-threads.base
-> installed base-unix.base
-> installed host-arch-x86_64.1
-> installed host-system-mingw.1
-> retrieved mingw-w64-shims.0.2.0 (cached)
-> retrieved flexdll.0.44 (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> installed ocaml-options-vanilla.1
-> installed conf-mingw-w64-gcc-x86_64.1
-> installed ocaml-env-mingw64.1
-> installed system-mingw.1
-> retrieved ocaml-config.3 (2 extra sources)
-> retrieved ocaml-config.3 (2 extra sources)
-> installed mingw-w64-shims.0.2.0
-> retrieved ocaml-compiler.5.4.0 (https://github.com/ocaml/ocaml/releases/download/5.4.0/ocaml-5.4.0.tar.gz)
-> installed ocaml-compiler.5.4.0
-> installed ocaml-base-compiler.5.4.0
-> installed ocaml-config.3
-> installed ocaml.5.4.0
-> installed base-domains.base
-> installed base-effects.base
-> installed base-nnp.base
Done.
# To update the current shell environment, run: eval $(opam env --switch=mingw-5.4)
2026-03-08 02:39.13 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-08 02:39.13 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y jupyter-kernel.0.8\
\nopam install -vy jupyter-kernel.0.8\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: jupyter-kernel.0.8 | grep -q 'ocaml/opam:windows-server-mingw-ltsc2025-opam'; then\
\n echo \"This package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\"\
\n exit 69\
\n fi\
\nfi \
\n\
\n\
\nexit $res"))
[NOTE] jupyter-kernel.0.8 is not installed.
Nothing to do.
The following actions will be performed:
=== recompile 1 package
- recompile mingw-w64-shims 0.2.0 [uses conf-pkg-config]
=== install 37 packages
- install atd 2.16.0 [required by atdgen]
- install atdgen 2.15.0 [required by jupyter-kernel]
- install atdgen-runtime 2.16.0 [required by atdgen]
- install base-bytes base [required by jupyter-kernel]
- install biniou 1.2.2 [required by atdgen]
- install camlp-streams 5.0.1 [required by biniou]
- install cmdliner 2.1.0 [required by uuidm, logs, uutf]
- install conf-pkg-config 4 [required by conf-zmq]
- install conf-zmq 0.1 [required by zmq]
- install cppo 1.8.0 [required by lwt]
- install csexp 1.5.2 [required by dune-configurator]
- install digestif 1.3.0 [required by jupyter-kernel]
- install dune 3.21.1 [required by jupyter-kernel]
- install dune-configurator 3.21.1 [required by zmq]
- install easy-format 1.3.4 [required by atd]
- install eqaf 0.10 [required by digestif]
- install jupyter-kernel 0.8
- install logs 0.10.0 [required by jupyter-kernel]
- install lwt 6.1.1 [required by jupyter-kernel]
- install menhir 20260209 [required by atd]
- install menhirCST 20260209 [required by menhir]
- install menhirGLR 20260209 [required by menhir]
- install menhirLib 20260209 [required by menhir]
- install menhirSdk 20260209 [required by menhir]
- install ocamlbuild 0.16.1 [required by uuidm, logs, ptime, uutf]
- install ocamlfind 1.9.8 [required by uuidm, logs, base-bytes, etc.]
- install ocplib-endian 1.2 [required by lwt]
- install ptime 1.2.0 [required by jupyter-kernel]
- install re 1.14.0 [required by atdgen]
- install result 1.5 [required by jupyter-kernel]
- install seq base [required by yojson]
- install topkg 1.1.1 [required by uuidm, logs, ptime, uutf]
- install uuidm 0.9.10 [required by jupyter-kernel]
- install uutf 1.0.4 [required by jupyter-kernel]
- install yojson 2.2.2 [required by jupyter-kernel]
- install zmq 5.3.0 [required by jupyter-kernel]
- install zmq-lwt 5.3.0 [required by jupyter-kernel]
The following system packages will first need to be installed:
pkgconf
<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>
[NOTE] You can retry with '--assume-depexts' to skip this check, or run 'opam option depext=false' to permanently disable handling of system packages.
Running the system package manager non-interactively requires '--confirm-level=unsafe-yes'.
opam believes some required external dependencies are missing. opam can:
> 1. Run C:\opam\.opam\.cygwin\setup-x86_64.exe to install them (may need root/sudo access)
2. Display the recommended C:\opam\.opam\.cygwin\setup-x86_64.exe command and wait while you run it manually (e.g. in another terminal)
3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
4. Abort the installation
[1/2/3/4] 4
'C:\cygwin64\usr\local\bin\opam.exe install -vy jupyter-kernel.0.8' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y jupyter-kernel.0.8
opam install -vy jupyter-kernel.0.8
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: jupyter-kernel.0.8 | grep -q 'ocaml/opam:windows-server-mingw-ltsc2025-opam'; then
echo "This package failed and has been disabled for CI using the 'x-ci-accept-failures' field."
exit 69
fi
fi
exit $res" failed with exit status 10
Failed: Build failed
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