Auto merge of #730 - henrikhorluck:regen-lock, r=matthewjasper

Regenerate lockfile to fix tests in nightly

- Old version of `lalrpop` crashes on nightly due to https://github.com/lalrpop/lalrpop/blob/9c55302046758ff34a70454ffae22614e950ef54/lalrpop/src/message/horiz.rs#L22

More specifically: Nightly has introduced https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.intersperse which conflicted with https://docs.rs/itertools/0.10.1/itertools/trait.Itertools.html#method.intersperse

Author: bors