bug#47761: Guile Segfaulting on guix build -f

[Nicolò Balzarotti]

Hi guix!

A package definition that used to build fine, recently (don't know
exactly when) started failing, with guile segfaulting.

After removing a few things, it seems that the MWE is this:

echo '(use-modules (guix git-download)) (git-predicate "repo")'>m.scm
mkdir repo
guix build -f m.scm
Segmentation fault

guix describe:

guix 2a62425
   repository URL: https://git.savannah.gnu.org/git/guix.git
   branch: master
   commit: 2a624253bc55e2a94f6581d6e790303575436c96

One of the two computers provides substitute to the other, so maybe my
guile is somehow damaged?  Can any of you reproduce it?

Thanks, Nicolò