Building on ltsc2025-1
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-27 05:47.14 ---> 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"))
2026-03-27 05:47.14 ---> 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 e589be2bb3f3c3428c9c98a122428f3ad2d44845"))
2026-03-27 05:47.14 ---> using "e45ceda38848c636c52a582b7b0e0300f8265fd055608e2010eb9091af016259" 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.
2026-03-27 05:47.14 ---> using "fca0867f47a2fc38aa8538df0aa1321357eb4edfd9be8bd5b70f35382e16c023" 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 flexdll.0.44 (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> retrieved mingw-w64-shims.0.2.0 (https://github.com/dra27/mingw-w64-shims/archive/refs/tags/0.2.0.tar.gz)
-> 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 $(opam env --switch=mingw-5.4)
2026-03-27 05:47.14 ---> using "50e23bda8cb7e182e2fb806cb3f1c6566c93ab53027ddfe1f4220b08bd2bf8f7" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-27 05:47.14 ---> using "882bc898cf68e632dee31003c12789c688566b3783a36d413db7b6a44325a086" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y tuntap.2.0.1\
\nopam install -vy tuntap.2.0.1\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: tuntap.2.0.1 | 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"))
Nothing to do.
[NOTE] tuntap.2.0.1 is not installed.
The following actions will be performed:
=== install 5 packages
- install domain-name 0.5.0 [required by ipaddr]
- install dune 3.21.1 [required by tuntap]
- install ipaddr 5.6.2 [required by tuntap]
- install macaddr 5.6.2 [required by tuntap]
- install tuntap 2.0.1
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing 1/14: [domain-name.0.5.0: extract]
Processing 2/14: [domain-name.0.5.0: extract] [dune.3.21.1: extract]
Processing 3/14: [domain-name.0.5.0: extract] [dune.3.21.1: extract] [ipaddr.5.6.2, macaddr.5.6.2: extract]
-> retrieved domain-name.0.5.0 (cached)
Processing 3/14: [dune.3.21.1: extract] [ipaddr.5.6.2, macaddr.5.6.2: extract]
Processing 4/14: [dune.3.21.1: extract] [ipaddr.5.6.2, macaddr.5.6.2: extract] [tuntap.2.0.1: http]
-> retrieved ipaddr.5.6.2, macaddr.5.6.2 (cached)
Processing 4/14: [dune.3.21.1: extract] [tuntap.2.0.1: http]
Processing 4/14: [dune.3.21.1: extract] [tuntap.2.0.1: extract]
-> retrieved tuntap.2.0.1 (https://github.com/mirage/ocaml-tuntap/releases/download/v2.0.1/tuntap-2.0.1.tbz)
Processing 4/14: [dune.3.21.1: extract]
-> retrieved dune.3.21.1 (cached)
Processing 5/14: [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 5/14: [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 7/14: [domain-name: dune build]
Processing 8/14: [domain-name: dune build] [macaddr: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "domain-name" "-j" "15" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\domain-name.0.5.0)
-> compiled domain-name.0.5.0
Processing 8/14: [macaddr: dune build]
-> installed domain-name.0.5.0
Processing 9/14: [macaddr: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "macaddr" "-j" "15" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\macaddr.5.6.2)
-> compiled macaddr.5.6.2
-> installed macaddr.5.6.2
Processing 11/14: [ipaddr: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "ipaddr" "-j" "15" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\ipaddr.5.6.2)
-> compiled ipaddr.5.6.2
-> installed ipaddr.5.6.2
Processing 13/14: [tuntap: dune build]
+ C:\opam\.opam\mingw-5.4\bin\dune.exe "build" "-p" "tuntap" "-j" "15" (CWD=C:\opam\.opam\mingw-5.4\.opam-switch\build\tuntap.2.0.1)
[ERROR] The compilation of tuntap.2.0.1 failed at "dune build -p tuntap -j 15".
#=== ERROR while compiling tuntap.2.0.1 =======================================#
# 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\tuntap.2.0.1
# command C:\opam\.opam\mingw-5.4\bin\dune.exe build -p tuntap -j 15
# exit-code 1
# env-file C:\opam\.opam\log\tuntap-23288-e53c7e.env
# output-file C:\opam\.opam\log\tuntap-23288-e53c7e.out
### output ###
# File "lib/dune", line 5, characters 14-26:
# 5 | (c_names tuntap_stubs))
# ^^^^^^^^^^^^
# (cd _build/default/lib && C:\cygwin64\bin\x86_64-w64-mingw32-gcc.exe -O2 -fno-strict-aliasing -fwrapv -mms-bitfields -O2 -fno-strict-aliasing -fwrapv -mms-bitfields -g -I C:/opam/.opam/mingw-5.4/lib/ocaml -I C:/opam/.opam/mingw-5.4/lib/ocaml\unix -I C:\opam\.opam\mingw-5.4\lib\domain-name -I C:\opam\.opam\mingw-5.4\lib\ipaddr -I C:\opam\.opam\mingw-5.4\lib\macaddr -o tuntap_stubs.o -c tuntap_[...]
# tuntap_stubs.c:24:10: fatal error: err.h: No such file or directory
# 24 | #include <err.h>
# | ^~~~~~~
# compilation terminated.
- File "lib/dune", line 5, characters 14-26:
- 5 | (c_names tuntap_stubs))
- ^^^^^^^^^^^^
- (cd _build/default/lib && C:\cygwin64\bin\x86_64-w64-mingw32-gcc.exe -O2 -fno-strict-aliasing -fwrapv -mms-bitfields -O2 -fno-strict-aliasing -fwrapv -mms-bitfields -g -I C:/opam/.opam/mingw-5.4/lib/ocaml -I C:/opam/.opam/mingw-5.4/lib/ocaml\unix -I C:\opam\.opam\mingw-5.4\lib\domain-name -I C:\opam\.opam\mingw-5.4\lib\ipaddr -I C:\opam\.opam\mingw-5.4\lib\macaddr -o tuntap_stubs.o -c tuntap_stubs.c)
- tuntap_stubs.c:24:10: fatal error: err.h: No such file or directory
- 24 | #include <err.h>
- | ^~~~~~~
- compilation terminated.
<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build tuntap 2.0.1
+-
+- The following changes have been performed
| - install domain-name 0.5.0
| - install dune 3.21.1
| - install ipaddr 5.6.2
| - install macaddr 5.6.2
+-
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-20260327054743.export"
'C:\cygwin64\usr\local\bin\opam.exe install -vy tuntap.2.0.1' failed.
# To update the current shell environment, run: eval $(opam env)
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y tuntap.2.0.1
opam install -vy tuntap.2.0.1
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: tuntap.2.0.1 | 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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