Building on ltsc2025-1
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-08 03:30.51 ---> 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 03:30.51 ---> 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 03:30.51 ---> 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 03:30.51 ---> 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 $(opam env --switch=mingw-5.4)
2026-03-08 03:30.51 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-08 03:30.51 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y letters.0.4.0\
\nopam install -vy letters.0.4.0\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: letters.0.4.0 | 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] letters.0.4.0 is not installed.
Nothing to do.
The following actions will be performed:
=== recompile 1 package
- recompile mingw-w64-shims 0.2.0 [uses conf-mingw-w64-gcc-i686]
=== install 66 packages
- install angstrom 0.16.1 [required by colombe, mrmime]
- install asn1-combinators 0.3.2 [required by x509]
- install astring 0.8.5 [required by bos]
- install base-bytes base [required by ocplib-endian]
- install base64 3.5.2 [required by mrmime, sendmail]
- install bigstringaf 0.10.0 [required by sendmail]
- install bos 0.2.1 [required by ca-certs]
- install bstr 0.0.4 [required by mrmime]
- install ca-certs 1.0.1 [required by letters]
- install cmdliner 2.1.0 [required by tls-lwt]
- install coin 0.1.5 [required by rosetta]
- install colombe 0.12.1 [required by letters]
- install conf-gmp 5 [required by conf-gmp-powm-sec, zarith]
- install conf-gmp-powm-sec 4 [required by mirage-crypto-pk]
- install conf-mingw-w64-gcc-i686 1 [required by conf-mingw-w64-gmp-i686]
- install conf-mingw-w64-gmp-i686 1 [required by conf-gmp]
- install conf-mingw-w64-gmp-x86_64 1 [required by conf-gmp]
- install conf-pkg-config 4 [required by zarith]
- install containers 3.18 [required by letters]
- install cppo 1.8.0 [required by lwt]
- install csexp 1.5.2 [required by dune-configurator]
- install cstruct 6.2.0 [required by sendmail]
- install digestif 1.3.0 [required by ca-certs]
- install domain-name 0.5.0 [required by x509, tls]
- install dune 3.21.1 [required by letters]
- install dune-configurator 3.21.1 [required by containers]
- install duration 0.2.1 [required by mirage-crypto-rng]
- install either 1.0.0 [required by containers]
- install emile 1.1 [required by colombe, mrmime]
- install eqaf 0.10 [required by digestif, mirage-crypto]
- install fmt 0.11.0 [required by letters]
- install fpath 0.7.3 [required by letters]
- install gmap 0.3.0 [required by x509]
- install hxd 0.4.0 [required by sendmail]
- install ipaddr 5.6.2 [required by colombe, mrmime]
- install kdf 1.0.0 [required by x509, tls]
- install ke 0.6 [required by mrmime, sendmail]
- install letters 0.4.0
- install logs 0.10.0 [required by ca-certs, sendmail]
- install lwt 6.1.1 [required by letters]
- install macaddr 5.6.2 [required by ipaddr]
- install mirage-crypto 2.0.3 [required by ca-certs]
- install mirage-crypto-ec 2.0.3 [required by x509, tls]
- install mirage-crypto-pk 2.0.3 [required by x509, tls]
- install mirage-crypto-rng 2.0.3 [required by tls-lwt]
- install mrmime 0.7.1 [required by letters]
- install ocaml-syntax-shims 1.0.0 [required by colombe]
- install ocamlbuild 0.16.1 [required by bos, ptime]
- install ocamlfind 1.9.8 [required by bos, ptime]
- install ocplib-endian 1.2 [required by lwt]
- install ohex 0.2.0 [required by ca-certs]
- install pecu 0.7 [required by mrmime]
- install prettym 0.0.4 [required by mrmime]
- install ptime 1.2.0 [required by letters]
- install rosetta 0.4.0 [required by mrmime]
[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'.
- install rresult 0.7.0 [required by sendmail]
- install sendmail 0.12.1 [required by letters]
- install tls 2.0.3 [required by letters]
- install tls-lwt 2.0.3 [required by letters]
- install topkg 1.1.1 [required by bos, ptime]
- install unstrctrd 0.4 [required by mrmime]
- install uutf 1.0.4 [required by mrmime]
- install uuuu 0.4.0 [required by rosetta]
- install x509 1.0.6 [required by letters]
- install yuscii 0.3.0 [required by rosetta]
- install zarith 1.14 [required by mirage-crypto-pk]
The following system packages will first need to be installed:
mingw64-i686-gcc-core mingw64-i686-gmp mingw64-x86_64-gmp pkgconf
<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>
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 letters.0.4.0' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y letters.0.4.0
opam install -vy letters.0.4.0
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: letters.0.4.0 | 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 10
Failed: Build failed
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