3 files changed, 0 insertions, 4 deletions
diff --git a/compiler/rustc_data_structures/src/sso/either_iter.rs b/compiler/rustc_data_structures/src/sso/either_iter.rs
index 131eeef4582..bca6c0955b9 100644
--- a/compiler/rustc_data_structures/src/sso/either_iter.rs
+++ b/compiler/rustc_data_structures/src/sso/either_iter.rs
@@ -1,7 +1,5 @@
 use std::fmt;
-use std::iter::ExactSizeIterator;
 use std::iter::FusedIterator;
-use std::iter::Iterator;
 
 /// Iterator which may contain instance of
 /// one of two specific implementations.
diff --git a/compiler/rustc_data_structures/src/sso/map.rs b/compiler/rustc_data_structures/src/sso/map.rs
index ec6a62016a8..7cdac581977 100644
--- a/compiler/rustc_data_structures/src/sso/map.rs
+++ b/compiler/rustc_data_structures/src/sso/map.rs
@@ -3,7 +3,6 @@ use crate::fx::FxHashMap;
 use arrayvec::ArrayVec;
 use std::fmt;
 use std::hash::Hash;
-use std::iter::FromIterator;
 use std::ops::Index;
 
 // For pointer-sized arguments arrays
diff --git a/compiler/rustc_data_structures/src/sso/set.rs b/compiler/rustc_data_structures/src/sso/set.rs
index 406f0270dcc..a4b40138933 100644
--- a/compiler/rustc_data_structures/src/sso/set.rs
+++ b/compiler/rustc_data_structures/src/sso/set.rs
@@ -1,6 +1,5 @@
 use std::fmt;
 use std::hash::Hash;
-use std::iter::FromIterator;
 
 use super::map::SsoHashMap;