rust: update to 1.80.1

[ognevny]

• add debuginfo only if debug option is set (see rust: don't generate debuginfo on i686 #21581 (comment))
• add missing wasm32-unknown-unknown target
• remove self-contained directory for all targets
• rust: remove license installation as rustdoc is now a part of main package (it installs license files in doc directory)
• rust-wasm: don't strip binaries, add missing wasi-libc dependency
• enable frame-pointers and CFG (addresses Integrate Control Flow Guard into MSYS2 #16833) in config.toml

[ArchGuyWu]

We may still need to set wasi-sysroot for all wasm32-wasip* targets.

[ArchGuyWu]

But is it possible to only disable self-contained for target $OSTYPE?

[ognevny]

But is it possible to only disable self-contained for target $OSTYPE?

I pushed the change, but it'll probably not work because the environment variable I used usually generated for build.rs...

[ArchGuyWu]

try TARGET env: https://github.com/rust-lang/cargo/blob/master/src/doc/src/reference/environment-variables.md#environment-variables-cargo-sets-for-build-scripts

[ognevny]

try TARGET env: https://github.com/rust-lang/cargo/blob/master/src/doc/src/reference/environment-variables.md#environment-variables-cargo-sets-for-build-scripts

it's also set for build.rs

[alvinhochun]

CFG

I afraid it may not be that simple: rust-lang/rust#74103

[ognevny]

I afraid it may not be that simple: rust-lang/rust#74103

that means that it can't be enable at the moment. I'll comment it in config.toml so we can mlve back to it in future

[ognevny]

rust-wasm now compiles with self-contained objects properly and _start symbol isn't stripped anymore!