error: Closure called just once immediately after it was declared
  --> $DIR/redundant_closure_call.rs:25:2
   |
25 |     i = closure();
   |     ^^^^^^^^^^^^^
   |
   = note: `-D clippy::redundant-closure-call` implied by `-D warnings`

error: Closure called just once immediately after it was declared
  --> $DIR/redundant_closure_call.rs:28:2
   |
28 |     i = closure(3);
   |     ^^^^^^^^^^^^^^

error: Try not to call a closure in the expression where it is declared.
  --> $DIR/redundant_closure_call.rs:17:10
   |
17 |     let a = (|| 42)();
   |             ^^^^^^^^^ help: Try doing something like: : `42`

error: Try not to call a closure in the expression where it is declared.
  --> $DIR/redundant_closure_call.rs:20:14
   |
20 |     let mut k = (|m| m+1)(i);
   |                 ^^^^^^^^^^^^

error: Try not to call a closure in the expression where it is declared.
  --> $DIR/redundant_closure_call.rs:22:6
   |
22 |     k = (|a,b| a*b)(1,5);
   |         ^^^^^^^^^^^^^^^^

error: aborting due to 5 previous errors