i686-unknown-hurd-gnu and x86_64-unknown-hurd-gnuTier: 3
[GNU/Hurd] is the GNU Hurd is the GNU project's replacement for the Unix kernel.
The target supports host tools.
The GNU/Hurd target supports std and uses the standard ELF file format.
This target can be built by adding i686-unknown-hurd-gnu and x86_64-unknown-hurd-gnu as targets in the rustc list.
Rust does not yet ship pre-compiled artifacts for this target. To compile for this target, you will either need to build Rust with the target enabled (see “Building the target” above), or build your own copy of core by using build-std or similar.
Tests can be run in the same way as a regular binary.
The target supports C code, the GNU toolchain calls the target i686-unknown-gnu and x86_64-unknown-gnu.