108a6be92a guix: Check for disk space availability before building (Carl Dong)
d7dec89091 guix: Remove dest if OUTDIR mv fails (Carl Dong)
Pull request description:
There seems to be some corner cases that can be hit when guix scripts unexpectedly fail in the middle of operation, see: https://gnusha.org/bitcoin-builds/2021-05-24.log
- Perform an early disk space check for `guix-build`
- Overwrite existing output directory after a successful build (the existing one might be malformed), and cleanup output directory if the `mv` somehow fails
ACKs for top commit:
laanwj:
Tested ACK 108a6be92a
achow101:
ACK 108a6be92a
Tree-SHA512: cf6438317da40bf55714cd2d8cce859b3d435cc66cabefe8d4a53552d7880966acfe84ffe8fadf1c80e368ae6b037992258a6d409df85ffc6ce8bf780e98e2e5