Accept `--skip` option in `criterion_main!`

AsyncBencher::iter_batched_ref example does not show the test

Question: How to correctly handle the return value?

Mention `--baseline-lenient` in the book

Suggestion to remove nosiy "Gnuplot not found, using plotters backend" for normal, non-verbose output

itertools version mismatch for crates from registry

No HTML report is generated, no error is raised

Throughput for each individual benchmark function

Getting Started code doesn't compile

Release another 0.5.x with forward support of 0.6