4406: Update cargo-metadata r=matklad a=edwin0cheng
This PR update `cargo-metadata` to 0.10.0 and it also relax the` serde-derive` deps to 1.0 for tests in `proc-macro-srv`.
cc @robojumper
r= @matklad , I think you would have something to say related to https://github.com/serde-rs/json/issues/647#issue-593788429 ?
4410: Improve wording in comment r=matklad a=edwin0cheng
4411: do not remove then block when you unwrap else block #4361 r=matklad a=bnjjj
close#4361
4417: Omit default types in HirDisplay SourceCode mode r=matklad a=TimoFreiberg
Closes#4390
Co-authored-by: Edwin Cheng <edwin0cheng@gmail.com>
Co-authored-by: Benjamin Coenen <5719034+bnjjj@users.noreply.github.com>
Co-authored-by: Timo Freiberg <timo.freiberg@gmail.com>
a3dbd272e0