Dear maintainer:

During a rebuild of all packages in unstable, 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/202606/

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:coq-simple-io, 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 coq,ocaml
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dune clean
Warning: Cache directories could not be created: Permission denied; disabling
cache
Hint: Make sure the directory /sbuild-nonexistent/.cache/dune/db/temp can be
created
rm -f plugin/META.coq-simple-io test/TestOcamlbuild.glob
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   dh_ocamlclean
   dh_clean
 debian/rules binary
dh binary --with coq,ocaml
   dh_update_autotools_config
   dh_autoreconf
   dh_ocamlinit
   dh_auto_configure
   debian/rules override_dh_auto_build
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dune build -p coq-simple-io
Warning: Cache directories could not be created: Permission denied; disabling
cache
Hint: Make sure the directory /sbuild-nonexistent/.cache/dune/db/temp can be
created
(cd _build/default/src && /usr/bin/coqdep -I /usr/lib/x86_64 [too-long-redacted] /default/src/.SimpleIO.theory.d
Warning: in file SimpleIO_Plugin.v, declared ML module coqsimpleio_plugin has not been found!
         [declared-module-not-found,filesystem,default]
(cd _build/default && /usr/bin/coqc -q -w -deprecated-native [too-long-redacted] SimpleIO src/SimpleIO_Plugin.v)
File "./src/SimpleIO_Plugin.v", line 3, characters 0-60:
Error: Can't find file coqsimpleio_plugin.cmxs on loadpath.

make[1]: *** [debian/rules:12: override_dh_auto_build] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:6: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
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