hi just try example of Rocket from Quickstart - Rocket Programming Guide
and i got Could not compile state
,
ruby$ cargo install state
Updating registry `https://github.com/rust-lang/crates.io-index`
Installing state v0.3.1
error: specified package has no binaries
Oderlo-pro:hello_world ruby$ cargo run
Compiling futures v0.1.15
Compiling language-tags v0.2.2
Compiling matches v0.1.6
Compiling ordermap v0.2.12
Compiling version_check v0.1.3
Compiling smallvec v0.4.3
Compiling libc v0.2.30
Compiling state v0.3.1
error[E0554]: #[feature] may not be used on the stable release channel
--> /Users/ruby/.cargo/registry/src/github.com-1ecc6299db9ec823/state-0.3.1/src/lib.rs:1:1
|
1 | #![feature(const_fn, drop_types_in_const)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to previous error
error: Could not compile `state`.
warning: build failed, waiting for other jobs to finish...
error: build failed
thanks ^^