Hello, I use guix on Arch Linux, version 050be36cbf3a42199f64f2e44c59f1cb1b3afab5.
Several invocations of guix build --keep-failed creates directories in /tmp like this one guix-build-hello-2.10.drv-0 for 1st build and then guix-build-hello-2.10.drv-1 for 2nd and so on (with last digit increasing). But environment variables for all of them are set to point to the very 1st directory. Reproduce: $ guix build --check --keep-failed hello ^C $ guix build --check --keep-failed hello ^C $ cd /tmp/guix-build-hello-2.10.drv-1/ $ grep PWD environment-variables export OLDPWD export PWD="/tmp/guix-build-hello-2.10.drv-0/hello-2.10" Here although we are in directory /tmp/guix-build-hello-2.10.drv-1/, PWD is set to .drv-0 directory. Regards, Dmitry.