I’m sure you can find more than one file with odd dates. The reasons can be many but one example is that you unpack an archive that doesn’t set a specific date and then it becomes epoc 0 (Thu Jan 1 00:00:00 UTC 1970).
run this
find ~/ -type f -newermt 1970-01-01 ! -newermt 1990-01-01 -ls | less
yes, so apparently cargo has all of its dates set to Nov 29 1973
