error[E0761]: file for module `mod_file_disambig_aux` found at both "$DIR/mod_file_disambig_aux.rs" and "$DIR/mod_file_disambig_aux/mod.rs"
  --> $DIR/mod_file_disambig.rs:1:1
   |
LL | mod mod_file_disambig_aux;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: delete or rename one of them to remove the ambiguity

error[E0433]: failed to resolve: use of undeclared crate or module `mod_file_aux`
  --> $DIR/mod_file_disambig.rs:4:16
   |
LL |     assert_eq!(mod_file_aux::bar(), 10);
   |                ^^^^^^^^^^^^ use of undeclared crate or module `mod_file_aux`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0433, E0761.
For more information about an error, try `rustc --explain E0433`.