diff --git a/tests/ui-fulldeps/deriving-global.rs b/tests/ui-fulldeps/deriving-global.rs
index 214bb4368ffd..9c0fc13a5e2f 100644
--- a/tests/ui-fulldeps/deriving-global.rs
+++ b/tests/ui-fulldeps/deriving-global.rs
@@ -4,6 +4,7 @@
 
 extern crate rustc_macros;
 extern crate rustc_serialize;
+extern crate rustc_span;
 
 // Necessary to pull in object code as the rest of the rustc crates are shipped only as rmeta
 // files.
diff --git a/tests/ui-fulldeps/deriving-hygiene.rs b/tests/ui-fulldeps/deriving-hygiene.rs
index e1084a08fec9..48d3355b9d54 100644
--- a/tests/ui-fulldeps/deriving-hygiene.rs
+++ b/tests/ui-fulldeps/deriving-hygiene.rs
@@ -4,6 +4,7 @@
 #![feature(rustc_private)]
 extern crate rustc_macros;
 extern crate rustc_serialize;
+extern crate rustc_span;
 
 use rustc_macros::{Decodable, Encodable};
 
diff --git a/tests/ui-fulldeps/empty-struct-braces-derive.rs b/tests/ui-fulldeps/empty-struct-braces-derive.rs
index 10e8beaa7b11..3637610af0d9 100644
--- a/tests/ui-fulldeps/empty-struct-braces-derive.rs
+++ b/tests/ui-fulldeps/empty-struct-braces-derive.rs
@@ -5,6 +5,7 @@
 
 extern crate rustc_macros;
 extern crate rustc_serialize;
+extern crate rustc_span;
 
 // Necessary to pull in object code as the rest of the rustc crates are shipped only as rmeta
 // files.
diff --git a/tests/ui-fulldeps/rustc_encodable_hygiene.rs b/tests/ui-fulldeps/rustc_encodable_hygiene.rs
index 509a6b1d22ca..bec7930d4622 100644
--- a/tests/ui-fulldeps/rustc_encodable_hygiene.rs
+++ b/tests/ui-fulldeps/rustc_encodable_hygiene.rs
@@ -3,8 +3,8 @@
 #![feature(rustc_private)]
 
 extern crate rustc_macros;
-#[allow(dead_code)]
 extern crate rustc_serialize;
+extern crate rustc_span;
 
 // Necessary to pull in object code as the rest of the rustc crates are shipped only as rmeta
 // files.