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-rw-r--r--compiler/rustc_errors/src/json/tests.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_errors/src/json/tests.rs b/compiler/rustc_errors/src/json/tests.rs
index e541f4ca7d4..fc9948cb2fc 100644
--- a/compiler/rustc_errors/src/json/tests.rs
+++ b/compiler/rustc_errors/src/json/tests.rs
@@ -1,6 +1,7 @@
 use super::*;
 
 use crate::DiagCtxt;
+use rustc_span::source_map::FilePathMapping;
 use rustc_span::BytePos;
 
 use std::str;