cannot find type `RegisterBlock` in module `self::mpu` on i686-pc-windows-gnu

[dimpolo]

My default toolchain is i686-pc-windows-gnu.
I updated the cortex-m dependency today and that caused CI to break.

Presumably introduced in 1c198a1

Could this line be changed to #[cfg(not(armv8m))] ?

cortex-m/src/peripheral/mpu.rs

Line 6 in 1c198a1

#[cfg(any(armv6m, armv7m, target_arch = "x86_64"))] // x86-64 is for rustdoc

[adamgreig]

Yes, I think that change could be made without even a breaking change, sounds OK to me. Would you like to open a PR? Also, is there any particular reason to build cortex-m on i686? Usually in CI we'll build it for the thumb target; the only reason anything builds for x86 is because docs.rs used to require it (but these days can be told to build for the thumb targets too, so...).

[dimpolo]

Thanks for the quick response
Sure, I'll write a PR :)

The reason might be my misunderstanding of how to write no_std unit tests haha.

If I run cargo test I get can't find crate for test
So I added #![cfg_attr(not(test), no_std)] and got can't find crate for std
Which is why I ended up with cargo test --target i686-pc-windows-gnu
And the reason I use i686-pc-windows-gnu is the debugger in CLion