Fix compilation on docs.rs (hopefully)

Use a feature instead of a cfg flag..
Release v0.1.5

Author: Techcable

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "static-reflect"
-version = "0.1.4"
+version = "0.1.5"
 edition = "2018"
 description = "Static type information, giving a form of compile-time reflection"
 license = "MIT"
@@ -21,9 +21,14 @@ never = []
 # Support the 'builtin' alternative to stdlib types
 builtins = []
 
+# Workaround for outdated nightly
+docs-rs = []
+
+
 [workspace]
 members = ["lib/*"]
 
 # Workaround for outdated nightly
 [package.metadata.docs.rs]
-rustc-args = ["--cfg", "docs_rs"]
+features = ["docs-rs"]
+

src/lib.rs

@@ -24,7 +24,7 @@
  * However it breaks on the version that docs.rs is using (as of this writing).
  * Therefore, we have to turn it off there.
  */
-#![cfg_attr(not(docs_rs), feature(const_fn_trait_bound))]
+#![cfg_attr(not(feature="docs-rs"), feature(const_fn_trait_bound))]
 #![cfg_attr(feature = "never", feature(never_type))]
 
 mod macros;