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-rw-r--r--src/librustdoc/core.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index 89b217dc7d4..7c89b38a92c 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -439,6 +439,7 @@ pub fn run_core(
                 resolver.borrow_mut().access(|resolver| {
                     sess.time("load_extern_crates", || {
                         for extern_name in &extern_names {
+                            debug!("loading extern crate {}", extern_name);
                             resolver
                                 .resolve_str_path_error(
                                     DUMMY_SP,