unstable: remove simd features on nightly

w00t

Author: BurntSushi

src/lib.rs

@@ -520,9 +520,6 @@ another matching engine with fixed memory requirements.
 #![deny(missing_docs)]
 #![cfg_attr(test, deny(warnings))]
 #![cfg_attr(feature = "pattern", feature(pattern))]
-#![cfg_attr(
-    feature = "unstable",
-    feature(cfg_target_feature, target_feature, stdsimd))]
 
 extern crate aho_corasick;
 extern crate memchr;

src/literal/teddy_avx2/imp.rs

@@ -120,6 +120,7 @@ impl Teddy {
         unsafe { self.find_impl(haystack) }
     }
 
+    #[allow(unused_attributes)]
     #[target_feature(enable = "avx2")]
     unsafe fn find_impl(&self, haystack: &[u8]) -> Option<Match> {
         // If our haystack is smaller than the block size, then fall back to

src/literal/teddy_ssse3/imp.rs

@@ -431,6 +431,7 @@ impl Teddy {
         unsafe { self.find_impl(haystack) }
     }
 
+    #[allow(unused_attributes)]
     #[target_feature(enable = "ssse3")]
     unsafe fn find_impl(&self, haystack: &[u8]) -> Option<Match> {
         // If our haystack is smaller than the block size, then fall back to