Building on ltsc2025-1
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-08 04:33.41 ---> 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 04:33.41 ---> 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 04:33.41 ---> 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 04:33.41 ---> 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)
-> installed conf-mingw-w64-gcc-x86_64.1
-> retrieved flexdll.0.44 (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> installed ocaml-env-mingw64.1
-> installed ocaml-options-vanilla.1
-> installed system-mingw.1
-> installed mingw-w64-shims.0.2.0
-> retrieved ocaml-config.3 (2 extra sources)
-> retrieved ocaml-config.3 (2 extra sources)
-> 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 $(opam env --switch=mingw-5.4)
2026-03-08 04:33.41 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-08 04:33.41 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y lo.0.2.0\
\nopam install -vy lo.0.2.0\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: lo.0.2.0 | 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] lo.0.2.0 is not installed.
Nothing to do.
The following actions will be performed:
=== install 5 packages
- install conf-liblo 1 [required by lo]
- install csexp 1.5.2 [required by dune-configurator]
- install dune 3.21.1 [required by lo]
- install dune-configurator 3.21.1 [required by lo]
- install lo 0.2.0
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing 2/14: [csexp.1.5.2: extract]
Processing 3/14: [csexp.1.5.2: extract] [dune.3.21.1, dune-configurator.3.21.1: extract]
Processing 4/14: [csexp.1.5.2: extract] [dune.3.21.1, dune-configurator.3.21.1: extract] [lo.0.2.0: http]
Processing 5/14: [csexp.1.5.2: extract] [dune.3.21.1, dune-configurator.3.21.1: extract] [lo.0.2.0: http]
-> installed conf-liblo.1
Processing 6/14: [csexp.1.5.2: extract] [dune.3.21.1, dune-configurator.3.21.1: extract] [lo.0.2.0: http]
-> retrieved csexp.1.5.2 (cached)
Processing 6/14: [dune.3.21.1, dune-configurator.3.21.1: extract] [lo.0.2.0: http]
Processing 6/14: [dune.3.21.1, dune-configurator.3.21.1: extract] [lo.0.2.0: extract]
-> retrieved lo.0.2.0 (https://github.com/savonet/ocaml-lo/archive/v0.2.0.tar.gz)
Processing 6/14: [dune.3.21.1, dune-configurator.3.21.1: extract]
-> retrieved dune.3.21.1, dune-configurator.3.21.1 (cached)
Processing 7/14: [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 7/14: [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 9/14: [csexp: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "csexp" "-j" "15" "@install" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\csexp.1.5.2)
- (cd _build/default && C:\opam\.opam\mingw-5.4\bin\ocamlc.opt.exe -w -40 -g -bin-annot -bin-annot-occurrences -I src/.csexp.objs/byte -cmi-file src/.csexp.objs/byte/csexp.cmi -no-alias-deps -o src/.csexp.objs/byte/csexp.cmo -c -impl src/csexp.ml)
- File "src/csexp.ml", line 236, characters 7-14:
- 236 | [@@inlined always]
- ^^^^^^^
- Warning 53 [misplaced-attribute]: the inlined attribute cannot appear in this context
- (cd _build/default && C:\opam\.opam\mingw-5.4\bin\ocamlopt.opt.exe -w -40 -g -I src/.csexp.objs/byte -I src/.csexp.objs/native -cmi-file src/.csexp.objs/byte/csexp.cmi -no-alias-deps -o src/.csexp.objs/native/csexp.cmx -c -impl src/csexp.ml)
- File "src/csexp.ml", line 236, characters 7-14:
- 236 | [@@inlined always]
- ^^^^^^^
- Warning 53 [misplaced-attribute]: the inlined attribute cannot appear in this context
-> compiled csexp.1.5.2
-> installed csexp.1.5.2
Processing 11/14: [dune-configurator: rm]
+ C:\cygwin64\bin\rm.exe "-rf" "vendor/csexp" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\dune-configurator.3.21.1)
+ C:\cygwin64\bin\rm.exe "-rf" "vendor/pp" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\dune-configurator.3.21.1)
Processing 11/14: [dune-configurator: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "dune-configurator" "-j" "15" "@install" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\dune-configurator.3.21.1)
-> compiled dune-configurator.3.21.1
-> installed dune-configurator.3.21.1
Processing 13/14: [lo: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "lo" "-j" "15" "@install" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\lo.0.2.0)
[ERROR] The compilation of lo.0.2.0 failed at "dune build -p lo -j 15 @install".
#=== ERROR while compiling lo.0.2.0 ===========================================#
# 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\lo.0.2.0
# command C:\opam\.opam\mingw-5.4\bin\dune.exe build -p lo -j 15 @install
# exit-code 1
# env-file C:\opam\.opam\log\lo-22644-91d200.env
# output-file C:\opam\.opam\log\lo-22644-91d200.out
### output ###
# compiling c program:
# [...]
# | return 0;
# | }
# run: x86_64-w64-mingw32-gcc -O2 -fno-strict-aliasing -fwrapv -mms-bitfields -I C:/opam/.opam/mingw-5.4/lib/ocaml -o C:\cygwin64\tmp\ocaml-configuratorc33743\c-test-0\test.exe C:\cygwin64\tmp\ocaml-configuratorc33743\c-test-0\test.c -lws2_32 -lole32 -luuid -lversion -lshlwapi -lsynchronization -l:libpthread.a -lgcc_eh -llo
# -> process exited with code 1
# -> stdout:
# -> stderr:
# | C:\cygwin64\tmp\ocaml-configuratorc33743\c-test-0\test.c:3:10: fatal error: lo/lo.h: No such file or directory
# | 3 | #include <lo/lo.h>
# | | ^~~~~~~~~
# | compilation terminated.
# Fatal error: exception File "src/config/discover.ml", line 19, characters 6-12: Assertion failed
- File "src/dune", lines 15-18, characters 0-91:
- 15 | (rule
- 16 | (targets c_flags.sexp c_library_flags.sexp)
- 17 | (action
- 18 | (run ./config/discover.exe)))
- (cd _build/default/src && config\discover.exe)
- compiling c program:
- |
- | #include <stdio.h>
- | #include <lo/lo.h>
- |
- | int main()
- | {
- | lo_address_new_with_proto(0, NULL, NULL);
- | return 0;
- | }
- run: x86_64-w64-mingw32-gcc -O2 -fno-strict-aliasing -fwrapv -mms-bitfields -I C:/opam/.opam/mingw-5.4/lib/ocaml -o C:\cygwin64\tmp\ocaml-configuratorc33743\c-test-0\test.exe C:\cygwin64\tmp\ocaml-configuratorc33743\c-test-0\test.c -lws2_32 -lole32 -luuid -lversion -lshlwapi -lsynchronization -l:libpthread.a -lgcc_eh -llo
- -> process exited with code 1
- -> stdout:
- -> stderr:
- | C:\cygwin64\tmp\ocaml-configuratorc33743\c-test-0\test.c:3:10: fatal error: lo/lo.h: No such file or directory
- | 3 | #include <lo/lo.h>
- | | ^~~~~~~~~
- | compilation terminated.
- Fatal error: exception File "src/config/discover.ml", line 19, characters 6-12: Assertion failed
<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lo 0.2.0
+-
+- The following changes have been performed
| - install conf-liblo 1
| - install csexp 1.5.2
| - install dune 3.21.1
| - install dune-configurator 3.21.1
+-
# To update the current shell environment, run: eval $(opam env)
The former state can be restored with:
C:\cygwin64\usr\local\bin\opam.exe switch import "C:\\opam\\.opam\\mingw-5.4\\.opam-switch\\backup\\state-20260308043407.export"
'C:\cygwin64\usr\local\bin\opam.exe install -vy lo.0.2.0' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y lo.0.2.0
opam install -vy lo.0.2.0
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: lo.0.2.0 | 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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