Harmen Stoppels 18760de972 Spack install: handle failed restore of backup (#25647) ... Spack has logic to preserve an installation prefix when it is being overwritten: if the new install fails, the old files are restored. This PR adds error handling for when this backup restoration fails (i.e. the new install fails, and then some unexpected error prevents restoration from the backup).		2021-10-01 11:40:48 -07:00
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spack	Spack install: handle failed restore of backup (#25647)	2021-10-01 11:40:48 -07:00