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windows-server-mingw-ltsc2025-5.4_opam-2.5

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2026-04-03 11:36.03: New job: test hyper-systems/ocaml-mqtt https://github.com/hyper-systems/ocaml-mqtt.git#refs/heads/master (ee6f43c284b35e7d5f83012fd97daffa99302581) (windows-x86_64:windows-server-mingw-ltsc2025-5.4_opam-2.5)
Base: ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/hyper-systems/ocaml-mqtt.git" -b "master" && cd "ocaml-mqtt" && git reset --hard ee6f43c2
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1
# windows-server-mingw-ltsc2025-5.4_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
RUN ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
RUN cd ~/opam-repository && (git cat-file -e d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 mqtt.opam /cygwin64/home/opam/src/./
RUN opam pin add -yn mqtt.dev '/cygwin64/home/opam/src/./'
RUN echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'
ENV DEPS="alcotest.1.9.1 alcotest-lwt.1.9.1 angstrom.0.16.1 arch-x86_64.1 asn1-combinators.0.3.2 astring.0.8.5 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0 bos.0.2.1 ca-certs.1.0.1 cmdliner.2.1.0 cohttp.6.2.1 cohttp-lwt.6.2.1 cohttp-lwt-unix.6.2.1 conduit.8.0.0 conduit-lwt.8.0.0 conduit-lwt-unix.8.0.0 conf-gmp.5 conf-gmp-powm-sec.4 conf-mingw-w64-gcc-x86_64.1 conf-mingw-w64-gmp-x86_64.1 conf-pkg-config.4 cppo.1.8.0 csexp.1.5.2 digestif.1.3.0 domain-name.0.5.0 dune.3.22.1 dune-configurator.3.22.1 duration.0.2.1 eqaf.0.10 flexdll.0.44 fmt.0.11.0 fpath.0.7.3 gmap.0.3.0 host-arch-x86_64.1 host-system-mingw.1 http.6.2.1 ipaddr.5.6.2 ipaddr-sexp.5.6.2 kdf.1.0.0 logs.0.10.0 lwt.6.1.1 lwt_ppx.6.1.0 macaddr.5.6.2 magic-mime.1.3.1 mingw-w64-shims.0.2.0 mirage-crypto.2.1.0 mirage-crypto-ec.2.1.0 mirage-crypto-pk.2.1.0 mirage-crypto-rng.2.1.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ohex.0.2.0 ppx_derivers.1.2.1 ppx_sexp_conv.v0.17.1 ppxlib.0.38.0 ppxlib_jane.v0.17.4 ptime.1.2.0 re.1.14.0 rresult.0.7.0 sexplib0.v0.17.0 stdlib-shims.0.3.0 stringext.1.6.0 system-mingw.1 tls.2.0.4 tls-lwt.2.0.4 topkg.1.1.1 uri.4.4.0 uri-sexp.4.4.0 uutf.1.0.4 x509.1.0.6 zarith.1.14"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y mqtt.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /cygwin64/home/opam/src
RUN cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2026-04-03 11:36.03: Using cache hint "hyper-systems/ocaml-mqtt-ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1-windows-server-mingw-ltsc2025-5.4_opam-2.5-2a25f5b5443817d1c8dd6fe43e5ca935"
2026-04-03 11:36.03: Using OBuilder spec:
((from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1)
(comment windows-server-mingw-ltsc2025-5.4_opam-2.5)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam"))
(run (shell "opam init --reinit -ni"))
(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src mqtt.opam) (dst /cygwin64/home/opam/src/./))
(run (network host)
(shell "opam pin add -yn mqtt.dev '/cygwin64/home/opam/src/./'"))
(run (shell "echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'"))
(env DEPS "alcotest.1.9.1 alcotest-lwt.1.9.1 angstrom.0.16.1 arch-x86_64.1 asn1-combinators.0.3.2 astring.0.8.5 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0 bos.0.2.1 ca-certs.1.0.1 cmdliner.2.1.0 cohttp.6.2.1 cohttp-lwt.6.2.1 cohttp-lwt-unix.6.2.1 conduit.8.0.0 conduit-lwt.8.0.0 conduit-lwt-unix.8.0.0 conf-gmp.5 conf-gmp-powm-sec.4 conf-mingw-w64-gcc-x86_64.1 conf-mingw-w64-gmp-x86_64.1 conf-pkg-config.4 cppo.1.8.0 csexp.1.5.2 digestif.1.3.0 domain-name.0.5.0 dune.3.22.1 dune-configurator.3.22.1 duration.0.2.1 eqaf.0.10 flexdll.0.44 fmt.0.11.0 fpath.0.7.3 gmap.0.3.0 host-arch-x86_64.1 host-system-mingw.1 http.6.2.1 ipaddr.5.6.2 ipaddr-sexp.5.6.2 kdf.1.0.0 logs.0.10.0 lwt.6.1.1 lwt_ppx.6.1.0 macaddr.5.6.2 magic-mime.1.3.1 mingw-w64-shims.0.2.0 mirage-crypto.2.1.0 mirage-crypto-ec.2.1.0 mirage-crypto-pk.2.1.0 mirage-crypto-rng.2.1.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ohex.0.2.0 ppx_derivers.1.2.1 ppx_sexp_conv.v0.17.1 ppxlib.0.38.0 ppxlib_jane.v0.17.4 ptime.1.2.0 re.1.14.0 rresult.0.7.0 sexplib0.v0.17.0 stdlib-shims.0.3.0 stringext.1.6.0 system-mingw.1 tls.2.0.4 tls-lwt.2.0.4 topkg.1.1.1 uri.4.4.0 uri-sexp.4.4.0 uutf.1.0.4 x509.1.0.6 zarith.1.14")
(env CI true)
(env OCAMLCI true)
(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y mqtt.dev $DEPS"))
(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /cygwin64/home/opam/src))
(run (shell "cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _build"))
)


2026-04-03 11:36.03: Waiting for resource in pool OCluster
2026-04-03 11:36.04: Waiting for worker…
2026-04-03 19:58.49: Got resource from pool OCluster
Building on ltsc2025-2
All commits already cached
HEAD is now at ee6f43c Merge pull request #20 from hyper-systems/rizo-opam-install


(from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1)
2026-04-03 19:59.01 ---> using "e6e8a2cf62a928430568e9b050d6cc986ddb11ca371f3b24e6b6f1ad80860153" from cache


C:/: (comment windows-server-mingw-ltsc2025-5.4_opam-2.5)


C:/: (user (uid 1000) (gid 1000))


C:/: (env CLICOLOR_FORCE 1)


C:/: (env OPAMCOLOR always)


C:/: (run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam"))
2026-04-03 19:59.01 ---> using "8371c7bbeda21231937607a48921d4490a1c9c23810f1d7416ef9e1aa874f8e3" from cache


C:/: (run (shell "opam init --reinit -ni"))
No configuration file found, using built-in defaults.


<><> Unix support infrastructure ><><><><><><><><><><><><><><><><><><><><><><><>


opam and the OCaml ecosystem in general require various Unix tools in order to operate correctly. At present, this requires the installation of Cygwin to provide these tools.


How should opam obtain Unix tools?
> 1. Use tools found in PATH (Cygwin installation at C:\cygwin64)
2. Automatically create an internal Cygwin installation that will be managed by opam (recommended)
3. Use Cygwin installation found in C:\cygwin64
4. Use another existing Cygwin/MSYS2 installation
5. Abort initialisation


[1/2/3/4/5] 1
Checking for available remotes: rsync and local, git.
- you won't be able to use mercurial repositories unless you install the hg command on your system.
- you won't be able to use darcs repositories unless you install the darcs command on your system.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-04-03 19:59.01 ---> using "8bf506c77ce4ea2b6efe0b049434ba77c8ea5f4c0beccb9cedbfead0127ea0b7" from cache


C:/: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
CYGWIN_NT-10.0-26100 3.6.7-1.x86_64
The OCaml toplevel, version 5.4.1
2.5.0
2026-04-03 19:59.01 ---> using "017acac92f6c222a89f675ad77684e3ed5874f73aa36dd7947a6dd1cf4a5b5c7" from cache


C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
65664dc5b2..d06cfb1853  master     -> origin/master
d06cfb1853 Merge pull request #29632 from shonfeder/release-dune-3.22.1


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file://C:/cygwin64/home/opam/opam-repository


Everything as up-to-date as possible
However, you may "opam upgrade" these packages explicitly at these versions (e.g. "opam upgrade ocaml.5.5.0"), which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2026-04-03 19:59.01 ---> using "336eb34db5e647012f2aaae2737f84ba9d7c97d66e4a73adcd8264b7c65b55f1" from cache


C:/: (copy (src mqtt.opam) (dst /cygwin64/home/opam/src/./))
2026-04-03 19:59.37 ---> saved as "464d4faadf6ba57b4cab29db3b646341934c032de98d59ccf6e199b3b92bd6ae"


C:/: (run (network host)
(shell "opam pin add -yn mqtt.dev '/cygwin64/home/opam/src/./'"))
[mqtt.dev] synchronised (file://C:/cygwin64/home/opam/src)
mqtt is now pinned to file://C:/cygwin64/home/opam/src (version dev)
2026-04-03 20:00.43 ---> saved as "a018cf40d976eaf397868fb3b4c009e602df04713188293e4e20c3aaaef280f7"


C:/: (run (shell "echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'"))
2026-04-03 20:01.23 ---> saved as "4f2698e38266451da7a7296319fc16133851152977b78f7aaef1e0559104095b"


C:/: (env DEPS "alcotest.1.9.1 alcotest-lwt.1.9.1 angstrom.0.16.1 arch-x86_64.1 asn1-combinators.0.3.2 astring.0.8.5 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0 bos.0.2.1 ca-certs.1.0.1 cmdliner.2.1.0 cohttp.6.2.1 cohttp-lwt.6.2.1 cohttp-lwt-unix.6.2.1 conduit.8.0.0 conduit-lwt.8.0.0 conduit-lwt-unix.8.0.0 conf-gmp.5 conf-gmp-powm-sec.4 conf-mingw-w64-gcc-x86_64.1 conf-mingw-w64-gmp-x86_64.1 conf-pkg-config.4 cppo.1.8.0 csexp.1.5.2 digestif.1.3.0 domain-name.0.5.0 dune.3.22.1 dune-configurator.3.22.1 duration.0.2.1 eqaf.0.10 flexdll.0.44 fmt.0.11.0 fpath.0.7.3 gmap.0.3.0 host-arch-x86_64.1 host-system-mingw.1 http.6.2.1 ipaddr.5.6.2 ipaddr-sexp.5.6.2 kdf.1.0.0 logs.0.10.0 lwt.6.1.1 lwt_ppx.6.1.0 macaddr.5.6.2 magic-mime.1.3.1 mingw-w64-shims.0.2.0 mirage-crypto.2.1.0 mirage-crypto-ec.2.1.0 mirage-crypto-pk.2.1.0 mirage-crypto-rng.2.1.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ohex.0.2.0 ppx_derivers.1.2.1 ppx_sexp_conv.v0.17.1 ppxlib.0.38.0 ppxlib_jane.v0.17.4 ptime.1.2.0 re.1.14.0 rresult.0.7.0 sexplib0.v0.17.0 stdlib-shims.0.3.0 stringext.1.6.0 system-mingw.1 tls.2.0.4 tls-lwt.2.0.4 topkg.1.1.1 uri.4.4.0 uri-sexp.4.4.0 uutf.1.0.4 x509.1.0.6 zarith.1.14")


C:/: (env CI true)


C:/: (env OCAMLCI true)


C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y mqtt.dev $DEPS"))


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[mqtt.dev] synchronised (file://C:/cygwin64/home/opam/src)


[NOTE] Package system-mingw is already installed (current version is 1).
[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-env-mingw64 is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml is already installed (current version is 5.4.1).
[NOTE] Package mingw-w64-shims is already installed (current version is 0.2.0).
[NOTE] Package host-system-mingw is already installed (current version is 1).
[NOTE] Package host-arch-x86_64 is already installed (current version is 1).
[NOTE] Package flexdll is already installed (current version is 0.44).
[NOTE] Package conf-mingw-w64-gcc-x86_64 is already installed (current version is 1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
[NOTE] Package arch-x86_64 is already installed (current version is 1).


The following system packages will first need to be installed:
mingw64-x86_64-gmp pkgconf


<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>


+ C:\opam\.opam\.cygwin\setup-x86_64.exe "--root" "C:\\cygwin64" "--quiet-mode" "unattended" "--no-shortcuts" "--no-startmenu" "--no-desktop" "--no-admin" "--no-version-check" "--no-write-registry" "--packages" "mingw64-x86_64-gmp,pkgconf"
- Starting cygwin install, version 2.937
- User has backup/restore rights
- User has symlink creation right
- Current Directory: C:\TEMP\cache
- root: C:\cygwin64 system
- Changing gid to Administrators
- Selected local directory: C:\TEMP\cache
- net: Preconfig
- site: https://mirrors.kernel.org/sourceware/cygwin/
- solving: 2 tasks, update: no, use test packages: no
- solving: 5 tasks, update: no, use test packages: no
- Augmented Transaction List:
-    0 install libpkgconf7            2.5.1-1
-    1 install mingw64-x86_64-gcc-g++ 13.4.0-1
-    2 install pkgconf                2.5.1-1
-    3 install pkg-config             2.5.1-1
-    4 install mingw64-x86_64-gmp     6.3.0-1
- Downloaded C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/pkgconf/libpkgconf7/libpkgconf7-2.5.1-1-x86_64.tar.zst
- Downloaded C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/mingw64-x86_64-gcc/mingw64-x86_64-gcc-g++/mingw64-x86_64-gcc-g++-13.4.0-1-x86_64.tar.zst
- Downloaded C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/pkgconf/pkgconf-2.5.1-1-x86_64.tar.zst
- Downloaded C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/pkgconf/pkg-config/pkg-config-2.5.1-1-x86_64.tar.zst
- Downloaded C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/noarch/release/mingw64-x86_64-gmp/mingw64-x86_64-gmp-6.3.0-1.tar.zst
- Extracting from file://C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/pkgconf/libpkgconf7/libpkgconf7-2.5.1-1-x86_64.tar.zst
- Extracting from file://C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/mingw64-x86_64-gcc/mingw64-x86_64-gcc-g++/mingw64-x86_64-gcc-g++-13.4.0-1-x86_64.tar.zst
- Extracting from file://C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/pkgconf/pkgconf-2.5.1-1-x86_64.tar.zst
- Extracting from file://C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/x86_64/release/pkgconf/pkg-config/pkg-config-2.5.1-1-x86_64.tar.zst
- Extracting from file://C:\TEMP\cache/https%3a%2f%2fmirrors.kernel.org%2fsourceware%2fcygwin%2f/noarch/release/mingw64-x86_64-gmp/mingw64-x86_64-gmp-6.3.0-1.tar.zst
- running: C:\cygwin64\bin\dash.exe "/etc/postinstall/0p_000_autorebase.dash"
- running: C:\cygwin64\bin\dash.exe "/etc/postinstall/0p_update-info-dir.dash"
- running: C:\cygwin64\bin\dash.exe "/etc/postinstall/zp_man-db-update-index.dash"
- running: C:\cygwin64\bin\bash.exe --norc --noprofile "/etc/postinstall/zp_zcygsympathy.sh"
- Ending cygwin install
# To update the current shell environment, run: eval $(opam env)
2026-04-03 20:20.25 ---> saved as "c7329b3338f174db22f6860ec6b84cad2b58e6c696363ee675dbe13971fa0d43"


C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam install $DEPS"))
[NOTE] Package system-mingw is already installed (current version is 1).
[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-env-mingw64 is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml is already installed (current version is 5.4.1).
[NOTE] Package mingw-w64-shims is already installed (current version is 0.2.0).
[NOTE] Package host-system-mingw is already installed (current version is 1).
[NOTE] Package host-arch-x86_64 is already installed (current version is 1).
[NOTE] Package flexdll is already installed (current version is 0.44).
[NOTE] Package conf-mingw-w64-gcc-x86_64 is already installed (current version is 1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
[NOTE] Package arch-x86_64 is already installed (current version is 1).
The following actions will be performed:
=== recompile 1 package
- recompile mingw-w64-shims           0.2.0
=== install 71 packages
- install   alcotest                  1.9.1
- install   alcotest-lwt              1.9.1
- install   angstrom                  0.16.1
- install   asn1-combinators          0.3.2
- install   astring                   0.8.5
- install   base                      v0.17.3
- install   base-bytes                base
- install   base64                    3.5.2
- install   bigstringaf               0.10.0
- install   bos                       0.2.1
- install   ca-certs                  1.0.1
- install   cmdliner                  2.1.0
- install   cohttp                    6.2.1
- install   cohttp-lwt                6.2.1
- install   cohttp-lwt-unix           6.2.1
- install   conduit                   8.0.0
- install   conduit-lwt               8.0.0
- install   conduit-lwt-unix          8.0.0
- install   conf-gmp                  5
- install   conf-gmp-powm-sec         4
- install   conf-mingw-w64-gmp-x86_64 1
- install   conf-pkg-config           4
- install   cppo                      1.8.0
- install   csexp                     1.5.2
- install   digestif                  1.3.0
- install   domain-name               0.5.0
- install   dune                      3.22.1
- install   dune-configurator         3.22.1
- install   duration                  0.2.1
- install   eqaf                      0.10
- install   fmt                       0.11.0
- install   fpath                     0.7.3
- install   gmap                      0.3.0
- install   http                      6.2.1
- install   ipaddr                    5.6.2
- install   ipaddr-sexp               5.6.2
- install   kdf                       1.0.0
- install   logs                      0.10.0
- install   lwt                       6.1.1
- install   lwt_ppx                   6.1.0
- install   macaddr                   5.6.2
- install   magic-mime                1.3.1
- install   mirage-crypto             2.1.0
- install   mirage-crypto-ec          2.1.0
- install   mirage-crypto-pk          2.1.0
- install   mirage-crypto-rng         2.1.0
- install   ocaml-compiler-libs       v0.17.0
- install   ocaml-syntax-shims        1.0.0
- install   ocaml_intrinsics_kernel   v0.17.1
- install   ocamlbuild                0.16.1
- install   ocamlfind                 1.9.8
- install   ocplib-endian             1.2
- install   ohex                      0.2.0
- install   ppx_derivers              1.2.1
- install   ppx_sexp_conv             v0.17.1
- install   ppxlib                    0.38.0
- install   ppxlib_jane               v0.17.4
- install   ptime                     1.2.0
- install   re                        1.14.0
- install   rresult                   0.7.0
- install   sexplib0                  v0.17.0
- install   stdlib-shims              0.3.0
- install   stringext                 1.6.0
- install   tls                       2.0.4
- install   tls-lwt                   2.0.4
- install   topkg                     1.1.1
- install   uri                       4.4.0
- install   uri-sexp                  4.4.0
- install   uutf                      1.0.4
- install   x509                      1.0.6
- install   zarith                    1.14


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved alcotest.1.9.1, alcotest-lwt.1.9.1  (cached)
-> retrieved angstrom.0.16.1  (cached)
-> retrieved asn1-combinators.0.3.2  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved base64.3.5.2  (cached)
-> retrieved base.v0.17.3  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved bos.0.2.1  (cached)
-> retrieved ca-certs.1.0.1  (cached)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved conf-gmp.5  (cached)
-> retrieved conf-gmp-powm-sec.4  (cached)
-> retrieved cohttp.6.2.1, cohttp-lwt.6.2.1, cohttp-lwt-unix.6.2.1, http.6.2.1  (cached)
-> retrieved conduit.8.0.0, conduit-lwt.8.0.0, conduit-lwt-unix.8.0.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved digestif.1.3.0  (cached)
-> retrieved domain-name.0.5.0  (cached)
-> retrieved duration.0.2.1  (cached)
-> retrieved eqaf.0.10  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved fpath.0.7.3  (cached)
-> retrieved gmap.0.3.0  (cached)
-> retrieved ipaddr.5.6.2, ipaddr-sexp.5.6.2, macaddr.5.6.2  (cached)
-> retrieved kdf.1.0.0  (cached)
-> retrieved logs.0.10.0  (cached)
-> installed conf-pkg-config.4
-> installed conf-mingw-w64-gmp-x86_64.1
-> retrieved lwt.6.1.1  (cached)
-> retrieved lwt_ppx.6.1.0  (cached)
-> retrieved magic-mime.1.3.1  (cached)
-> retrieved mingw-w64-shims.0.2.0  (cached)
-> removed   mingw-w64-shims.0.2.0
-> installed conf-gmp.5
-> retrieved mirage-crypto.2.1.0, mirage-crypto-ec.2.1.0, mirage-crypto-pk.2.1.0, mirage-crypto-rng.2.1.0  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved ocaml_intrinsics_kernel.v0.17.1  (cached)
-> installed conf-gmp-powm-sec.4
-> installed mingw-w64-shims.0.2.0
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved dune.3.22.1, dune-configurator.3.22.1  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> retrieved ohex.0.2.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_sexp_conv.v0.17.1  (cached)
-> retrieved ppxlib_jane.v0.17.4  (cached)
-> retrieved ppxlib.0.38.0  (cached)
-> retrieved ptime.1.2.0  (cached)
-> retrieved re.1.14.0  (cached)
-> retrieved rresult.0.7.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved stringext.1.6.0  (cached)
-> retrieved tls.2.0.4, tls-lwt.2.0.4  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uri.4.4.0, uri-sexp.4.4.0  (cached)
-> retrieved uutf.1.0.4  (cached)
-> retrieved x509.1.0.6  (cached)
-> retrieved zarith.1.14  (cached)
-> installed cmdliner.2.1.0
[WARNING] .install file is missing .exe extension for src/findlib/ocamlfind
[WARNING] .install file is missing .exe extension for src/findlib/ocamlfind_opt
[WARNING] Automatically adding .exe to C:\opam\.opam\5.4\.opam-switch\build\ocamlfind.1.9.8\src\findlib\ocamlfind.exe
[WARNING] Automatically adding .exe to C:\opam\.opam\5.4\.opam-switch\build\ocamlfind.1.9.8\src\findlib\ocamlfind_opt.exe
[WARNING] C:\opam\.opam\5.4\bin\safe_camlp4 is a script; the command won't be available
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed ocamlbuild.0.16.1
-> installed zarith.1.14
-> installed topkg.1.1.1
-> installed dune.3.22.1
-> installed rresult.0.7.0
-> installed uutf.1.0.4
-> installed base64.3.5.2
-> installed csexp.1.5.2
-> installed domain-name.0.5.0
-> installed astring.0.8.5
-> installed cppo.1.8.0
-> installed duration.0.2.1
-> installed eqaf.0.10
-> installed fmt.0.11.0
-> installed gmap.0.3.0
-> installed http.6.2.1
-> installed macaddr.5.6.2
-> installed magic-mime.1.3.1
-> installed ocaml-compiler-libs.v0.17.0
-> installed ocaml-syntax-shims.1.0.0
-> installed fpath.0.7.3
-> installed ocaml_intrinsics_kernel.v0.17.1
-> installed ocplib-endian.1.2
-> installed digestif.1.3.0
-> installed ipaddr.5.6.2
-> installed dune-configurator.3.22.1
-> installed ohex.0.2.0
-> installed ppx_derivers.1.2.1
-> installed ptime.1.2.0
-> installed re.1.14.0
-> installed sexplib0.v0.17.0
-> installed stdlib-shims.0.3.0
-> installed asn1-combinators.0.3.2
-> installed bigstringaf.0.10.0
-> installed stringext.1.6.0
-> installed mirage-crypto.2.1.0
-> installed angstrom.0.16.1
-> installed alcotest.1.9.1
-> installed kdf.1.0.0
-> installed uri.4.4.0
-> installed base.v0.17.3
-> installed lwt.6.1.1
-> installed ppxlib.0.38.0
-> installed logs.0.10.0
-> installed ppxlib_jane.v0.17.4
-> installed lwt_ppx.6.1.0
-> installed alcotest-lwt.1.9.1
-> installed mirage-crypto-rng.2.1.0
-> installed mirage-crypto-pk.2.1.0
-> installed ppx_sexp_conv.v0.17.1
-> installed mirage-crypto-ec.2.1.0
-> installed ipaddr-sexp.5.6.2
-> installed uri-sexp.4.4.0
-> installed bos.0.2.1
-> installed x509.1.0.6
-> installed conduit.8.0.0
-> installed tls.2.0.4
-> installed ca-certs.1.0.1
-> installed cohttp.6.2.1
-> installed tls-lwt.2.0.4
-> installed conduit-lwt.8.0.0
-> installed conduit-lwt-unix.8.0.0
-> installed cohttp-lwt.6.2.1
-> installed cohttp-lwt-unix.6.2.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-03 20:43.39 ---> saved as "ff2afb1de115be34eec899c8a20b5da7e779cc88d1e9a787fce5503b782d6e46"


C:/: (copy (src .) (dst /cygwin64/home/opam/src))
2026-04-03 20:55.42 ---> saved as "388016f21a7f3ab25a37615dddcdfc6a22f6917c80b8f8e2ab5c10c800d3a3b9"


C:/: (run (shell "cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _build"))
(cd _build/default && C:\opam\.opam\5.4\bin\ocamlopt.opt.exe -w @1..3@5..28@31..39@43@46..47@49..57@61..62@67@69-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -I lib/mqtt_client/.mqtt_client.objs/byte -I lib/mqtt_client/.mqtt_client.objs/native -I C:/opam/.opam/5.4/lib/ocaml\threads -I C:/opam/.opam/5.4/lib/ocaml\unix -I C:\opam\.opam\5.4\lib\asn1-combinators -I C:\opam\.opam\5.4\lib\base64 -I C:\opam\.opam\5.4\lib\bytes -I C:\opam\.opam\5.4\lib\digestif -I C:\opam\.opam\5.4\lib\domain-name -I C:\opam\.opam\5.4\lib\eqaf -I C:\opam\.opam\5.4\lib\fmt -I C:\opam\.opam\5.4\lib\gmap -I C:\opam\.opam\5.4\lib\ipaddr -I C:\opam\.opam\5.4\lib\kdf\hkdf -I C:\opam\.opam\5.4\lib\kdf\pbkdf -I C:\opam\.opam\5.4\lib\logs -I C:\opam\.opam\5.4\lib\logs/lwt -I C:\opam\.opam\5.4\lib\lwt -I C:\opam\.opam\5.4\lib\lwt\unix -I C:\opam\.opam\5.4\lib\macaddr -I C:\opam\.opam\5.4\lib\mirage-crypto -I C:\opam\.opam\5.4\lib\mirage-crypto-ec -I C:\opam\.opam\5.4\lib\mirage-crypto-pk -I C:\opam\.opam\5.4\lib\mirage-crypto-rng -I C:\opam\.opam\5.4\lib\mirage-crypto-rng\unix -I C:\opam\.opam\5.4\lib\ocplib-endian -I C:\opam\.opam\5.4\lib\ocplib-endian\bigstring -I C:\opam\.opam\5.4\lib\ohex -I C:\opam\.opam\5.4\lib\ptime -I C:\opam\.opam\5.4\lib\ptime/clock -I C:\opam\.opam\5.4\lib\tls -I C:\opam\.opam\5.4\lib\tls-lwt -I C:\opam\.opam\5.4\lib\x509 -I C:\opam\.opam\5.4\lib\zarith -cmi-file lib/mqtt_client/.mqtt_client.objs/byte/mqtt_client.cmi -no-alias-deps -opaque -open Mqtt_client__ -o lib/mqtt_client/.mqtt_client.objs/native/mqtt_client.cmx -c -impl lib/mqtt_client/Mqtt_client.pp.ml)
File "lib/mqtt_client/Mqtt_client.ml", line 200, characters 18-58:
200 |         | None -> open_tcp_connection ~client_id host port
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: This expression has type
(Lwt_io.input_channel * Lwt_io.output_channel) Lwt.t
but an expression was expected of type
(Lwt_io.input_channel * Lwt_io.output_channel, [> `Msg of string ])
         result Lwt.t
Type Lwt_io.input_channel * Lwt_io.output_channel
is not compatible with type
(Lwt_io.input_channel * Lwt_io.output_channel, [> `Msg of string ])
         result
(cd _build/default && C:\opam\.opam\5.4\bin\ocamlc.opt.exe -w @1..3@5..28@31..39@43@46..47@49..57@61..62@67@69-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -bin-annot -bin-annot-occurrences -I lib/mqtt_client/.mqtt_client.objs/byte -I C:/opam/.opam/5.4/lib/ocaml\threads -I C:/opam/.opam/5.4/lib/ocaml\unix -I C:\opam\.opam\5.4\lib\asn1-combinators -I C:\opam\.opam\5.4\lib\base64 -I C:\opam\.opam\5.4\lib\bytes -I C:\opam\.opam\5.4\lib\digestif -I C:\opam\.opam\5.4\lib\domain-name -I C:\opam\.opam\5.4\lib\eqaf -I C:\opam\.opam\5.4\lib\fmt -I C:\opam\.opam\5.4\lib\gmap -I C:\opam\.opam\5.4\lib\ipaddr -I C:\opam\.opam\5.4\lib\kdf\hkdf -I C:\opam\.opam\5.4\lib\kdf\pbkdf -I C:\opam\.opam\5.4\lib\logs -I C:\opam\.opam\5.4\lib\logs/lwt -I C:\opam\.opam\5.4\lib\lwt -I C:\opam\.opam\5.4\lib\lwt\unix -I C:\opam\.opam\5.4\lib\macaddr -I C:\opam\.opam\5.4\lib\mirage-crypto -I C:\opam\.opam\5.4\lib\mirage-crypto-ec -I C:\opam\.opam\5.4\lib\mirage-crypto-pk -I C:\opam\.opam\5.4\lib\mirage-crypto-rng -I C:\opam\.opam\5.4\lib\mirage-crypto-rng\unix -I C:\opam\.opam\5.4\lib\ocplib-endian -I C:\opam\.opam\5.4\lib\ocplib-endian\bigstring -I C:\opam\.opam\5.4\lib\ohex -I C:\opam\.opam\5.4\lib\ptime -I C:\opam\.opam\5.4\lib\ptime/clock -I C:\opam\.opam\5.4\lib\tls -I C:\opam\.opam\5.4\lib\tls-lwt -I C:\opam\.opam\5.4\lib\x509 -I C:\opam\.opam\5.4\lib\zarith -cmi-file lib/mqtt_client/.mqtt_client.objs/byte/mqtt_client.cmi -no-alias-deps -opaque -open Mqtt_client__ -o lib/mqtt_client/.mqtt_client.objs/byte/mqtt_client.cmo -c -impl lib/mqtt_client/Mqtt_client.pp.ml)
File "lib/mqtt_client/Mqtt_client.ml", line 200, characters 18-58:
200 |         | None -> open_tcp_connection ~client_id host port
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: This expression has type
(Lwt_io.input_channel * Lwt_io.output_channel) Lwt.t
but an expression was expected of type
(Lwt_io.input_channel * Lwt_io.output_channel, [> `Msg of string ])
         result Lwt.t
Type Lwt_io.input_channel * Lwt_io.output_channel
is not compatible with type
(Lwt_io.input_channel * Lwt_io.output_channel, [> `Msg of string ])
         result
"C:\cygwin64\bin\bash.exe" "-lc" "cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2026-04-03 20:57.45: Job failed: Failed: Build failed