| error: cannot find macro `unknown_macro` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:32:13 | 
 |    | | 
 | LL |             unknown_macro!(); | 
 |    |             ^^^^^^^^^^^^^ | 
 |  | 
 | error[E0405]: cannot find trait `UnknownBound` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:11:13 | 
 |    | | 
 | LL | pub fn f<B: UnknownBound>(a: UnknownType, b: B) { | 
 |    |             ^^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0412]: cannot find type `UnknownType` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:11:30 | 
 |    | | 
 | LL | pub fn f<B: UnknownBound>(a: UnknownType, b: B) { | 
 |    |                              ^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0405]: cannot find trait `UnknownTrait` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:14:10 | 
 |    | | 
 | LL |     impl UnknownTrait for ValidType {} | 
 |    |          ^^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0405]: cannot find trait `UnknownTrait` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:15:27 | 
 |    | | 
 | LL |     impl<T: UnknownBound> UnknownTrait for T {} | 
 |    |                           ^^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0405]: cannot find trait `UnknownBound` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:15:13 | 
 |    | | 
 | LL |     impl<T: UnknownBound> UnknownTrait for T {} | 
 |    |             ^^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0412]: cannot find type `UnknownType` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:18:25 | 
 |    | | 
 | LL |     impl ValidTrait for UnknownType {} | 
 |    |                         ^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0405]: cannot find trait `UnknownBound` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:20:53 | 
 |    | | 
 | LL |     impl ValidTrait for ValidType where ValidTrait: UnknownBound {} | 
 |    |                                                     ^^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0412]: cannot find type `UnknownType` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:25:21 | 
 |    | | 
 | LL |         type Item = UnknownType; | 
 |    |                     ^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error[E0412]: cannot find type `UnknownType` in this scope | 
 |   --> $DIR/impl-fn-nesting.rs:44:37 | 
 |    | | 
 | LL |             pub fn doubly_nested(c: UnknownType) { | 
 |    |                                     ^^^^^^^^^^^ not found in this scope | 
 |  | 
 | error: aborting due to 10 previous errors | 
 |  | 
 | Some errors have detailed explanations: E0405, E0412. | 
 | For more information about an error, try `rustc --explain E0405`. |