Removed non-matching candidates from consideration earlier, obviating need to filter them out
Removed clones of candidates that didn't match (before: clone then check; after: check then clone)
Also removed pointless unnecessary work in print_environment (code that was replaced but then not deleted; kinda surprised clippy doesn't warn about pointless sort on a vector that'll never actually be used).
Removed non-matching candidates from consideration earlier, obviating need to filter them out Removed clones of candidates that didn't match (before: clone then check; after: check then clone)
Also removed pointless unnecessary work in
print_environment(code that was replaced but then not deleted; kinda surprised clippy doesn't warn about pointlesssorton a vector that'll never actually be used).