Dongsu Park def3699a96
build_library: deal with both virtual/rust and dev-lang/rust
Toolchain utils have installed only `dev-lang/rust`. It could result
in version mismatch between `virtual/rust` and `dev-lang/rust`, because
`dev-lang/rust` does not automatically pull in `virtual/rust`.

So install `virtual/rust` instead of `dev-lang/rust`.
2020-07-16 15:40:00 +02:00
..