2022-12-23T18:56:07 mailcatcher 0 -> 1
2022-12-23T18:56:09 attrpath: mailcatcher
2022-12-23T18:56:09 Checking auto update branch...
2022-12-23T18:56:13 The derivation has no 'version' attribute, so do not know how to figure out the version while doing an updateScript update