Building on ltsc2025-3
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-10 21:24.29 ---> 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"))
2026-03-10 21:24.29 ---> 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"))
2026-03-10 21:24.29 ---> 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.
2026-03-10 21:24.29 ---> 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 $(opam env --switch=mingw-5.4)
2026-03-10 21:24.29 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-10 21:24.29 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y readline.0.2\
\nopam install -vy readline.0.2\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: readline.0.2 | 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] readline.0.2 is not installed.
Nothing to do.
The following actions will be performed:
=== install 3 packages
- install conf-readline 1 [required by readline]
- install dune 3.21.1 [required by readline]
- install readline 0.2
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing 2/9: [dune.3.21.1: extract]
Processing 3/9: [dune.3.21.1: extract] [readline.0.2: http]
Processing 4/9: [dune.3.21.1: extract] [readline.0.2: http]
-> installed conf-readline.1
Processing 5/9: [dune.3.21.1: extract] [readline.0.2: http]
Processing 5/9: [dune.3.21.1: extract] [readline.0.2: extract]
-> retrieved readline.0.2 (https://gitlab.inria.fr/ACG/dev/readline-ocaml/-/package_files/157177/download)
Processing 5/9: [dune.3.21.1: extract]
-> retrieved dune.3.21.1 (cached)
Processing 6/9: [dune: ocaml 15]
+ C:\opam\.opam\mingw-5.4\bin\ocaml.exe "boot/bootstrap.ml" "-j" "15" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\dune.3.21.1)
- ocamlc -output-complete-exe -intf-suffix .dummy -g -o .duneboot.exe -I boot -I +unix unix.cma boot/types.ml boot/libs.ml boot/duneboot.ml
- .\.duneboot.exe -j 15
Processing 6/9: [dune: ./_boot/dune.exe build]
+ C:\opam\.opam\mingw-5.4\.opam-switch\build\dune.3.21.1\./_boot/dune.exe "build" "dune.install" "--release" "--profile" "dune-bootstrap" "-j" "15" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\dune.3.21.1)
-> compiled dune.3.21.1
-> installed dune.3.21.1
Processing 8/9: [readline: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "readline" "-j" "15" "@install" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\readline.0.2)
- Error: CreateProcess(): Exec format error
- -> required by _build/default/src/lflags.sexp
- -> required by (:include _build/default/src/lflags.sexp) at src/dune:20
- -> required by _build/default/src/dllreadline_stubs.dll
- -> required by _build/install/default/lib/stublibs/dllreadline_stubs.dll
- -> required by _build/default/readline.install
- -> required by alias install
[ERROR] The compilation of readline.0.2 failed at "dune build -p readline -j 15 @install".
#=== ERROR while compiling readline.0.2 =======================================#
# context 2.5.0 | win32/x86_64 | ocaml-base-compiler.5.4.0 | git+file://C:/cygwin64/home/opam/opam-repository
# path C:\opam\.opam\mingw-5.4\.opam-switch\build\readline.0.2
# command C:\opam\.opam\mingw-5.4\bin\dune.exe build -p readline -j 15 @install
# exit-code 1
# env-file C:\opam\.opam\log\readline-8252-4ce2ff.env
# output-file C:\opam\.opam\log\readline-8252-4ce2ff.out
### output ###
# Error: CreateProcess(): Exec format error
# -> required by _build/default/src/lflags.sexp
# -> required by (:include _build/default/src/lflags.sexp) at src/dune:20
# -> required by _build/default/src/dllreadline_stubs.dll
# -> required by _build/install/default/lib/stublibs/dllreadline_stubs.dll
# -> required by _build/default/readline.install
# -> required by alias install
<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build readline 0.2
+-
+- The following changes have been performed
| - install conf-readline 1
| - install dune 3.21.1
+-
# To update the current shell environment, run: eval $(opam env)
The former state can be restored with:
C:\cygwin64\usr\local\bin\opam.exe switch import "C:\\opam\\.opam\\mingw-5.4\\.opam-switch\\backup\\state-20260310212505.export"
'C:\cygwin64\usr\local\bin\opam.exe install -vy readline.0.2' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y readline.0.2
opam install -vy readline.0.2
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: readline.0.2 | 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 31
Failed: Build failed
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