Backintime appears to be broken

[habiloid]

System

• xuname: Void 5.13.19_1 x86_64-musl AuthenticAMD uptodate rF
• package: backintime-1.2.1_3

Expected behavior

Perform a backup

Actual behavior

Traceback (most recent call last):
File "/usr/share/backintime/common/backintime.py", line 27, in
import config
File "/usr/share/backintime/common/config.py", line 32, in
import tools
File "/usr/share/backintime/common/tools.py", line 1801, in
class OrderedSet(collections.MutableSet):
AttributeError: module 'collections' has no attribute 'MutableSet'

Steps to reproduce the behavior

Run backintime