Hi! The substitute served at https://mirror.hydra.gnu.org/guix/nar/gzip/6lcsaddzj6q3facaidajc6ws0yp0m3dq-mpfr-3.1.5 appears to be corrupted:
Downloading https://mirror.hydra.gnu.org/guix/nar/gzip/6lcsaddzj6q3facaidajc6ws0yp0m3dq-mpfr-3.1.5 (1.6MiB installed)... mpfr-3.1.5 587KiB/s 00:00 | 191KiB transferred gzip: stdin: invalid compressed data--crc error gzip: stdin: invalid compressed data--length error guix substitute: error: corrupt input while restoring '/gnu/store/6lcsaddzj6q3facaidajc6ws0yp0m3dq-mpfr-3.1.5/lib/libmpfr.a' from #{read pipe}# killing process 22063 killing process 22064 guix package: error: build failed: some substitutes for the outputs of derivation `/gnu/store/gm6kmg1gikl7amzvbrm9q16xkqkz6m12-rasqal-0.9.33.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source
