Check what is going on with nasm-rs and bindgen interactions

[lu-zero]

@xiphmont landed a workaround in e5ab520, but I got different results (a sigill) after updating the current nasm release.

variables

packages	versions known working	version known clashing
nasm-rs	< 1.4 git	1.4
bindgen	0.37	0.47
nasm	< 2.14.02	2.14.02

[lu-zero]

On 2c2777d:

• This combination works: nasm 2.14.02, nasm-rs 0.1.4, rustc 1.32.0, bindgen 0.47
• This combination also works: nasm 2.14.02, nasm-rs 0.1.4, rustc 1.30.1, bindgen 0.47

[lu-zero]

On 525f981:

• This combination works: nasm 2.14.02, nasm-rs 0.1.4, rustc 1.32.0, bindgen 0.47
• This combination also works: nasm 2.14.02, nasm-rs 0.1.4, rustc 1.30.1, bindgen 0.47

[lu-zero]

I guess this will have to be investigate further either by locally installing a fedora and/or diffing the bindgen output.

[lu-zero]

Apparently it is some problem with clang-sys and the libclang provided.

rust-lang/rust-bindgen#1504 for additional details.