* Fix "t.Fatal from a non-test goroutine" errors in cache_test.go
- t.Fatal(f) should not be called within a Go routine based on it's documentation and only from the main test's thread.
- In 1.24 this seems to cause build failures
* Address all "non-constant format string errors" from go vet
- Within 1.24 these now cause test builds to fail
…" from go vet