Remove many unnecessary trait derivations.

[rust.git] / src / librustc / infer / nll_relate / mod.rs

diff --git a/src/librustc/infer/nll_relate/mod.rs b/src/librustc/infer/nll_relate/mod.rs
index 4649f3f9567e78fb4e3eddcf48eadd3a33c2706f..9a835cf5c0938930d49b6aca3c32b4a04ca9f59e 100644 (file)
--- a/src/librustc/infer/nll_relate/mod.rs
+++ b/src/librustc/infer/nll_relate/mod.rs
@@ -32,7 +32,7 @@
 use rustc_data_structures::fx::FxHashMap;
 use std::fmt::Debug;
 
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
+#[derive(PartialEq)]
 pub enum NormalizationStrategy {
     Lazy,
     Eager,