error[E0554]: `#![feature]` may not be used on the stable release channel
albert285957606 opened this issue · 3 comments
how to solve this problem
albert@albert-GL502VMZ:/Desktop/时间管理/activitywatch/aw-server-rust$ cargo --version/Desktop/时间管理/activitywatch/aw-server-rust$ rustup -V
cargo 1.57.0
albert@albert-GL502VMZ:
rustup 1.24.3 (ce5817a94 2021-05-31)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active rustc version is rustc 1.63.0-nightly (420c970cb 2022-06-09)
albert@albert-GL502VMZ:~/Desktop/时间管理/activitywatch/aw-server-rust$ rustc -V
rustc 1.57.0
I can't explain it, but for some reason the stable compiler (not supported) is used, despite rustup seemingly being set to nightly.
Do you have duplicate installations, a weird PATH, or something else in your configuration that could be the culprit?
Must be some configuration issue with your build setup, not a bug.
Closing.