Specify Release 1.0.0 requires Rust 1.58.0 or later.

[rhanulewicz]

The version of Rust given by 'cargo' on current Ubuntu 21.10 is 1.57.0 so the compilation fails. I found that installing via the curl script on their website rust-lang.org gets the most recent version of Rust

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

and this allowed system76-scheduler to compile.

Just wanted to make a note of this for others who come through trying to figure out why it won't compile (the errors do not make this clear). This dependency should probably be noted somewhere officially associated with the 1.0.0 release.

[maxiberta]

Aha! That explains why I needed to patch those tracing::debug!() calls to get the PPA builds working :-D (it's a trivial patch fortunately).

[NobodyXu]

Aha! That explains why I needed to patch those tracing::debug!() calls to get the PPA builds working :-D (it's a trivial patch fortunately).

That is the new formatting supported by rust-1.58.0.

It allows format string to reference variables directly, same as python f-string.