Error in fsck_apfs.log

I noticed this in my log reports under fsck_apfs.log. Anything to worry about?

/dev/rdisk1s5s1: fsck_apfs started at Thu Feb 11 13:33:49 2021

/dev/rdisk1s5s1: error: container /dev/rdisk1 is mounted with write access; please re-run with -l.

/dev/rdisk1s5s1: fsck_apfs completed at Thu Feb 11 13:33:49 2021

dev/rdisk3s1: fsck_apfs started at Thu Feb 11 13:52:06 2021

/dev/rdisk3s1: ** Checking the container superblock.

/dev/rdisk3s1: ** Checking the object map.

/dev/rdisk3s1: ** Checking volume.

/dev/rdisk3s1: ** Checking the APFS volume superblock.

/dev/rdisk3s1: ** The volume Time Machine Backups was formatted by newfs_apfs (1677.50.1) and last modified by apfs_kext (1677.81.1).

/dev/rdisk3s1: ** QUICKCHECK ONLY; FILESYSTEM CLEAN

/dev/rdisk3s1: fsck_apfs completed at Thu Feb 11 13:52:07 2021