Bug#1122303: ocaml-eio: FTBFS with the nocheck build profile

[Santiago Vila <sanvila@debian.org>]

Package: src:ocaml-eio
Version: 1.3-1
Severity: serious
Tags: forky sid ftbfs
User: debian-qa@lists.debian.org
Usertags: ftbfs-nocheck-profile

Dear maintainer:

During a rebuild of all packages in unstable using the nocheck build profile,
this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202512/

A wiki page discussing how to reproduce bugs in this category and
possible solutions is available here:

https://wiki.debian.org/qa.debian.org/FTBFS/nocheck

(It's a wiki, so you are welcome to contribute)

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:ocaml-eio, so that this is still
visible in the BTS web page for this package.

Thanks.

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[...]
 debian/rules clean
dh clean --with ocaml --buildsystem ocaml_dune
   dh_auto_clean -O--buildsystem=ocaml_dune
	dune clean
   dh_autoreconf_clean -O--buildsystem=ocaml_dune
   dh_ocamlclean -O--buildsystem=ocaml_dune
   dh_clean -O--buildsystem=ocaml_dune
 debian/rules binary
dh binary --with ocaml --buildsystem ocaml_dune
   dh_update_autotools_config -O--buildsystem=ocaml_dune
   dh_autoreconf -O--buildsystem=ocaml_dune
   dh_ocamlinit -O--buildsystem=ocaml_dune
   dh_auto_configure -O--buildsystem=ocaml_dune
   dh_auto_build -O--buildsystem=ocaml_dune
	dune build -j 2 -p eio,eio_main,eio_posix
File "lib_eio_posix/include/dune", line 4, characters 12-29:
4 |  (libraries dune-configurator))
                ^^^^^^^^^^^^^^^^^
Error: Library "dune-configurator" not found.
-> required by _build/default/lib_eio_posix/include/discover.exe
-> required by _build/default/lib_eio_posix/config.ml
-> required by _build/install/default/lib/eio_posix/config.ml
-> required by _build/default/eio_posix.install
-> required by alias install
dh_auto_build: error: dune build -j 2 -p eio,eio_main,eio_posix returned exit code 1
make: *** [debian/rules:7: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
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