Merge pull request #683 from asomers/unused_features

Fix unused_feature lints triggered by the latest nightly compiler

Author: asomers

mockall/src/lib.rs

@@ -1142,7 +1142,6 @@
 // incomplete; that's why it's guarded by the "nightly" feature.
 #![cfg_attr(feature = "nightly", allow(incomplete_features))]
 
-#![cfg_attr(feature = "nightly", feature(doc_cfg))]
 #![cfg_attr(test, deny(warnings))]
 #![warn(missing_docs)]
 

mockall_derive/src/lib.rs

@@ -5,7 +5,7 @@
 //! its reexports via the [`mockall`](https://docs.rs/mockall/latest/mockall)
 //! crate.
 
-#![cfg_attr(feature = "nightly_derive", feature(proc_macro_diagnostic))]
+#![cfg_attr(all(feature = "nightly_derive", not(test)), feature(proc_macro_diagnostic))]
 #![cfg_attr(test, deny(warnings))]
 // This lint is unhelpful.  See
 // https://github.com/rust-lang/rust-clippy/discussions/14256

mockall_double/src/lib.rs

@@ -7,7 +7,7 @@
 //! However, it is defined in its own crate so that the bulk of Mockall can
 //! remain a dev-dependency, instead of a regular dependency.
 
-#![cfg_attr(feature = "nightly", feature(proc_macro_diagnostic))]
+#![cfg_attr(all(feature = "nightly", not(test)), feature(proc_macro_diagnostic))]
 #![cfg_attr(test, deny(warnings))]
 extern crate proc_macro;