To make use of k-rust's multithreaded cocurrency test with the larger fasta data, which, be warned, is larger than github's recommended upload size.
Run k-rust on the test data, searching for kmers of length 5, like this:
$ cargo run 5 cerevisae.pan_S288C_chrI.fa
or, searching for kmers of length 21 across multiple records:
$ cargo run 21 cerevisae.pan.fa