nb crate version conflict between 0.11.1 and embedded-hal

[nebelgrau77]

I just stumbled upon a problem that seems to be related to this PR: #179

Bottomline: nrf-hal-common won't compile.

I'm using the master branch, and here's what happens:

 = note: expected fn pointer `fn(&mut saadc::Saadc, &mut PIN) -> core::result::Result<_, nb::Error<()>>` (enum `nb::Error`)
               found fn pointer `fn(&mut saadc::Saadc, &mut PIN) -> core::result::Result<_, nb::Error<()>>` (enum `nb::Error`)
 = note: perhaps two different versions of crate `nb` are being used?

This affects saadc and timer modules.
In two cases the "expected" and "found" look identical as seen above, but then they aren't:

    = note: expected enum `nb::Error<void::Void>`
               found enum `nb::Error<_>`
    = note: perhaps two different versions of crate `nb` are being used?

If I run cargo tree it does confirm that two different versions of nb are used: v1.0.0 in the nrf-common-hal, and v0.1.2 in embedded-hal.

So I checked something that works for me: https://github.com/nebelgrau77/ItsyBitsy_nRF52840_ADC_serialTX - this uses the v0.11.0 of the nrf-common-hal, pulled from crates.io, so the nb version was still v0.1.2.

In fact downgrading it back to 0.1.2 in a local fork of the master fixed it.

There's a big fat chance I'm missing something, though! :)

Originally posted by @nebelgrau77 in #179 (comment)

[eldruin]

Have you tried running cargo update? nb 0.1.3 is compatible with nb 1.0.0

[nebelgrau77]

That solved the problem, thank you!