Crate `grex` did not build

[pemistahl]

Crate name: grex
Build failure link: https://docs.rs/crate/grex/0.3.1/builds/210840

Additional details:
The problem is dependent crate matrixmultiply v0.2.3.
The error is array lengths can't depend on generic parameters.
This bug has been reported already in bluss/matrixmultiply#50.
Seems to be a problem with the current Rust nightly as reported in rust-lang/rust#67743.

[jyn514]

Ping me when this gets fixed upstream and I can manually schedule a rebuild. This is hard to fix in general, see #464 and #506

[pemistahl]

I'll do. It is really unfortunate that you cannot use an older nightly or stable Rust for building the docs. This would solve the problem instantly.

[pietroalbini]

Using stable is unfortunately not possible, as docs.rs uses (a lot of) unstable features to build documentation. Using another nightly is... doable, but complicated :(

[magnusuMET]

@jyn514 This is fixed in the upstream nightly. I also have an affected crate, netcdf that needs a rebuild due to the same error.

[pemistahl]

@magnusuMET Thanks for letting me know. Yes please, a rebuild of the docs for crate grex, versions 0.3.1 and 0.3.2 would be great. Thanks in advance.

[jyn514]

I rebuilt grex 0.3.1, grex 0.3.2, and netcdf 0.4.0.