mercurial-crecord 0.20151121-2 (amd64 binary) in ubuntu focal

 The selective commit functionality of Mercuial allows you to interactively
 choose among the changes you have made (with line-level granularity),
 and commit only those changes you select. After committing the selected
 changes, the unselected changes are still present in your working copy,
 so you can use hg commit -i multiple times to split large changes into
 several smaller changesets.
 .
 This package shipped an extension which provided the following hg commands:
 .
  * crecord,
  * qcrecord,
  * qcrefresh.
 .
 This functionality has been incorporated into Mercurial since version 3.8.1.
 .
 This package is only provided for the convenience of the users of crecord and
 can be safely removed.