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-rw-r--r--src/libsyntax/ext/pipes/ast_builder.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libsyntax/ext/pipes/ast_builder.rs b/src/libsyntax/ext/pipes/ast_builder.rs
index da59059a0cc..37d5e0206cb 100644
--- a/src/libsyntax/ext/pipes/ast_builder.rs
+++ b/src/libsyntax/ext/pipes/ast_builder.rs
@@ -19,6 +19,9 @@ use ast::ident;
 use ast;
 use codemap::span;
 
+use core::str;
+use core::vec;
+
 // Transitional reexports so qquote can find the paths it is looking for
 mod syntax {
     pub use ext;