x86_64-0.11.3 has been yanked.
x86_64 library
Support for x86_64 specific instructions (e.g. TLB flush), registers (e.g. control registers), and structures (e.g. page tables).
Crate Feature Flags
nightly: This is the default.stable: Use this to build with non-nightly rust. Needsdefault-features = false.
Building with stable rust
This needs to have the compile-time requirements of the cc crate installed on your system.
It was currently only tested on Linux and MacOS.