aya/aya-build/src
Thomas Eizinger 6d36fe13d3 aya-build: Allow setting Rust nightly version
At present, `aya_build` will always use `+nightly` to build the
eBPF kernel. This is problematic in environments such as CI, where
tools always need to be installed first. Installing the current
nightly Rust toolchain gives you a new toolchain every day. This
poisones caches and makes CI jobs non-deterministic.

Resolves: 
..
lib.rs aya-build: Allow setting Rust nightly version