Bastian Köcher 23382db1b4 Make wasm-builder print the rustc version (#7351)
* Make `wasm-builder` print the rustc version

This makes `wasm-builder` print the rustc version that is being used to
compile the project. This is rather useful, because people can check
faster if the used rustc version is maybe known for being broken with
Substrate.

* Apply suggestions from code review

* Add some comments
2020-10-19 14:45:09 +02:00
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529 MiB
Languages
Rust 99.8%
Shell 0.2%