failing.rs

async fn maybe_watch_compute() -> wgpu::ShaderModuleDescriptor<'static> {
    wgpu::include_spirv!(env!("some_shader.spv"))
}

working.rs

async fn maybe_watch_compute() -> wgpu::ShaderModuleDescriptor<'static> {
    let data = std::fs::read(env!("some_shader.spv")).unwrap();

    let spirv = wgpu::util::make_spirv(&data);
    let spirv = match spirv {
        wgpu::ShaderSource::Wgsl(cow) => {
            wgpu::ShaderSource::Wgsl(Cow::Owned(cow.into_owned()))
        }
        wgpu::ShaderSource::SpirV(cow) => {
            wgpu::ShaderSource::SpirV(Cow::Owned(cow.into_owned()))
        }
    };
    wgpu::ShaderModuleDescriptor {
        label: None,
        source: spirv,
        flags: wgpu::ShaderFlags::default(),
    }
}