wasmi-labs/wasmi

Failed to install `wasmi_cli`: `raw mutable pointers are not allowed in statics` (Rust 1.77.1)

MagicalTux opened this issue · 4 comments

MagicalTux commented

I tried to run cargo install wasmi_cli to test this lib but got the following:

error[E0658]: raw mutable pointers are not allowed in statics
   --> /home/magicaltux/.cargo/registry/src/index.crates.io-6f17d22bba15001f/wasmi-0.33.0/src/engine/executor/cache.rs:273:37
    |
273 |     unsafe { NonNull::new_unchecked(ptr::addr_of_mut!(ZERO_CELL)) }
    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
    = note: this error originates in the macro `ptr::addr_of_mut` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0658`.
error: could not compile `wasmi` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
Robbepop commented

Whlith which Rust compiler version did you try.to install Wasmi? I have never seen this error before during development. Maybe Wasmi CI should be extended to cover certain missing specs.

MagicalTux commented

After some testing this seems to be linked to rustc version

By default I was using rustc 1.77.1 (7cf61ebde 2024-03-27) (gentoo) but upgrading to 1.79.0 allowed me to compile wasmi_cli successfully

  • 🚀1
Robbepop commented

Thanks a lot for the response and the bug report. I will have to see why this occurs in v1.77.1 to eventually close this issue.

  • 👍1
Robbepop commented

Failure in Rust 1.77.1 (and previous versions) occurs while Rust 1.78 compiles fine is due to this change:
rust-lang/rust#117614

I was not aware how new this change actually was.
Since Wasmi is pinned to Rust 1.77 we probably want to address this to keep Wasmi compilable with Rust 1.77.