Cargo Features

cranelift-jit has no features set by default.

cranelift-jit = { version = "0.107.0", features = ["selinux-fix"] }
selinux-fix = memmap2

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

memmap2 selinux-fix?

Enables memmap2 ^0.2.1