allow_internal_unstable needs a list of features

[hellow554]

scoped-tls/src/lib.rs

Line 74 in 09b4945

#[allow_internal_unstable]

[00:25:35] warning: allow_internal_unstable expects list of feature names. In the future this will become a hard error. Please use `allow_internal_unstable(foo, bar)` to only allow the `foo` and `bar` features
[00:25:35]   --> /cargo/registry/src/github.jpy.wang-1ecc6299db9ec823/scoped-tls-0.1.2/src/lib.rs:71:1
[00:25:35]    |
[00:25:35] 71 | #[allow_internal_unstable]
[00:25:35]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^

(source)