Hi,

I’ve seen this multiple times now, most recently with commit
8ef38cd1bf7ec17b8d1bc1c0bcb42ac30ac30406 on a foreign system: Some
operation, here a `guix pack` tries to build ca-certificate-bundle and
it fails the first time, but rerunning the same operation succeeds:

---snip---
-builder for `/gnu/store/iqm2zwq8jrr9gaw5jp4vs42j887aglmk-ca-certificate-bundle.drv' failed with exit code 1
Erstellung von /gnu/store/iqm2zwq8jrr9gaw5jp4vs42j887aglmk-ca-certificate-bundle.drv fehlgeschlagen
Das Erstellungsprotokoll kann unter „/var/log/guix/drvs/iq/m2zwq8jrr9gaw5jp4vs42j887aglmk-ca-certificate-bundle.drv.bz2“ eingesehen werden.
cannot build derivation `/gnu/store/riw7sfkl8a5rapyvf6vvh07cwv3nrwil-profile.drv': 1 dependencies couldn't be built
cannot build derivation `/gnu/store/l8zdf69zk0pg599gifcyxbd80h676yp1-python-jupyterlab-bash-coreutils-docker-pack.tar.zst.drv': 1 dependencies couldn't be built
guix pack: Fehler: build of `/gnu/store/l8zdf69zk0pg599gifcyxbd80h676yp1-python-jupyterlab-bash-coreutils-docker-pack.tar.zst.drv' failed
---snap---

The backtrace looks like this:

---snip---
Backtrace:
           2 (primitive-load "/gnu/store/74i539y9b0bvslk3bk0kc27q76p?")
In ice-9/eval.scm:
    619:8  1 (_ #f)
In unknown file:
           0 (setlocale 6 "en_US.utf8")

ERROR: In procedure setlocale:
In procedure setlocale: Invalid argument
---snap---

Curiously the output path mentioned in the .drv
(/gnu/store/zjbpik3bfhmcamqzixzm1892mqbknnj9-ca-certificate-bundle) does
not exist, even after successfully running the command. Manually
building the driver with `guix build
/gnu/store/iqm2zwq8jrr9gaw5jp4vs42j887aglmk-ca-certificate-bundle.drv`
yields the same error as above, so I’m assuming the profile hook is
simply broken, while `guix pack` does not actually depend on it.

Cheers,
Lars