On the bright side, the compiler's performance is improving constantly. Timing the compilation of lewton plus its dependencies on the 0.9.4 release commit: * 8

On the bright side, the compiler's performance is improving constantly. Timing the compilation of lewton plus its dependencies on the 0.9.4 release commit: * 8.042s on rustc 1.20.0 from 2017-08-27 * 5.061s on rustc 1.30.0 from 2018-10-24 * 4.789s on rustc 1.36.0 from 2019-07-03 * 3.197s on rustc 1.44.0 from 2020-06-01