Hi Mark,

Mark H Weaver <mhw@netris.org> skribis:

> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Mark H Weaver <mhw@netris.org> skribis:
>>
>>> I did a clean rebuild of guix from git master (make clean; ./bootstrap;
>>> make), and then attempted to upgrade all packages.  After several
>>> successful builds, the daemon printed this:
>>>
>>> guix-daemon: nix/libstore/local-store.cc:526: void
>>> nix::canonicalisePathMetaData_(const Path&, uid_t,
>>> nix::InodesSeen&): Assertion `!((((st.st_mode)) & 0170000) ==
>>> (0040000))' failed.
>>
>> Yes, this is a daemon bug pending a fix:
>> <https://github.com/NixOS/nix/issues/122>.
>>
>> In the meantime, you can hopefully work around it by deleting the
>> already-present output–i.e., by running either:
>>
>>   guix gc --delete /nix/store/wbsypglflcy7fi08h4finffjy9mqzh12-libtool-2.4.2
>
> This command fails because there are still references:

OK.  I believe this (untested) patch fixes the underlying problem: