Cargo install fails on rustpython-ast build

[insomnes]

 cargo install pylyzer --locked
...
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> /home/mdengin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustpython-ast-0.3.0/src/impls.rs:60:1
   |
60 | static_assertions::assert_eq_size!(crate::Stmt, [u8; 160]);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: `generic::Stmt` (1216 bits)
   = note: target type: `[u8; 160]` (1280 bits)
   = note: this error originates in the macro `static_assertions::assert_eq_size` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> /home/mdengin/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustpython-ast-0.3.0/src/impls.rs:62:1
   |
62 | static_assertions::assert_eq_size!(crate::Pattern, [u8; 96]);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: source type: `generic::Pattern` (704 bits)
   = note: target type: `[u8; 96]` (768 bits)
   = note: this error originates in the macro `static_assertions::assert_eq_size` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0512`.
error: could not compile `rustpython-ast` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
error: failed to compile `pylyzer v0.0.51`, intermediate artifacts can be found at `/tmp/cargo-installGOeH1Z`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.

[awalvie]

Running into the same thing when trying to install via Mason

[saygo-png]

same here with mason

[rodrigomverissimo]

In the meantime, try using the previous version of Rust rustup default 1.75.0

This fixed it for me.

[susludusrotalis]

Same issue with installing with Mason

[mtshiba]

Perhaps related to RustPython/Parser#114.

[mtshiba]

Build using Rust 1.75.

[snail-with-tea]

Maybe add rust version to cargo.toml?

[mtshiba]

Cargo.toml's package.rust-version is the minimal supported Rust version, so it won't help this time.

[chenrui333]

@mtshiba looks like the head build works for me with rust 1.77.0, can we cut a new release soon than later? Thanks!

This is my head build log, https://gist.github.com/chenrui333/8a383dadf60b4e1fc41771a150aab18a