wasm-opt fails during linux builds

[htrojan]

🐛 Bug description

When running wasm-pack build the command does not finish on linux systems. The error message (sample taken from github actions) is

[INFO]: Installing wasm-bindgen...
[INFO]: Optimizing wasm binaries with `wasm-opt`...
Error: failed to execute `wasm-opt`: exited with signal: 11
  full command: "/home/runner/.cache/.wasm-pack/wasm-opt-4d7a65327e9363b7/wasm-opt" "/home/runner/work/connect-four-webai/connect-four-webai/pkg/connect_four_bg.wasm" "-o" "/home/runner/work/connect-four-webai/connect-four-webai/pkg/connect_four_bg.wasm-opt.wasm" "-O"
To disable `wasm-opt`, add `wasm-opt = false` to your package metadata in your `Cargo.toml`.

When attaching the debug flag '-d' to wasm-opt the debut output is

(...)
[PassRunner]   running pass: dae-optimizing...                 0.0730599 seconds.
[PassRunner]   (validating)
[PassRunner]   running pass: inlining-optimizing...            Error: failed to execute `wasm-opt`: exited with signal: 11
  full command: "/home/ht/.cache/.wasm-pack/wasm-opt-4d7a65327e9363b7/wasm-opt" "/mnt/c/Users/HT/CLionProjects/connect-four-node/pkg/connect_four_bg.wasm" "-o" "/mnt/c/Users/HT/CLionProjects/connect-four-node/pkg/connect_four_bg.wasm-opt.wasm" "-O" "--debug" "--enable-mutable-globals"
To disable `wasm-opt`, add `wasm-opt = false` to your package metadata in your `Cargo.toml`.

The behavior is independent of the used optimization level and only occurs on linux (tested on Ubuntu 20.04.1 LTS). Builds on Windows work fine.

🤔 Expected Behavior

The behavior on Linux and Windows should be the same and without an error.

👟 Steps to reproduce

The issue seems to only occur with one specific method accessing an array of Options. The minimum code to reproduce is given here:

test.rs:

use wasm_bindgen::prelude::*;


pub const BOARD_WIDTH: usize = 7;
pub const BOARD_HEIGHT: usize = 6;

#[wasm_bindgen]
pub struct GameBoard {
    fields: [[Option<FieldType>; BOARD_HEIGHT]; BOARD_WIDTH],
}


#[wasm_bindgen]
impl GameBoard {

    pub fn empty_fields(&self) -> u8 {
        let mut empty = 0;

        for x in 0..7 {
            for y in 0..6 {
                if self.fields[x][y] == None {
                    empty = empty + 1;
                }
            }
        }
        return empty;
    }
}

#[wasm_bindgen]
#[derive(Copy, Clone, Eq, PartialEq, Debug)]
pub enum FieldType {
    Opponent,
    Player
}

The error only occurs when an option is used. When using an array with just the "raw" FieldType the code runs just fine.

🌍 Your environment

Include the relevant details of your environment. wasm-pack version: 0.9.1 rustc version: Tested with rustc 1.50.0 (cb75ad5db 2021-02-10) and rustc 1.53.0-nightly (07e0e2ec2 2021-03-24) on x86_64-unknown-linux-gnu

[fussybeaver]

I also seem to get this error when using serde to serialize an Option<Vec<T>>

[refcell]

Reinstalling wasm-pack did the trick for me:

curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh