error[E0053]: method `mul` has an incompatible type for trait
  --> $DIR/wrong-mul-method-signature.rs:16:21
   |
LL |     fn mul(self, s: &f64) -> Vec1 {
   |                     ^^^^
   |                     |
   |                     expected `f64`, found `&f64`
   |                     help: change the parameter type to match the trait: `f64`
   |
   = note: expected signature `fn(Vec1, f64) -> Vec1`
              found signature `fn(Vec1, &f64) -> Vec1`

error[E0053]: method `mul` has an incompatible type for trait
  --> $DIR/wrong-mul-method-signature.rs:33:21
   |
LL |     fn mul(self, s: f64) -> Vec2 {
   |                     ^^^
   |                     |
   |                     expected `Vec2`, found `f64`
   |                     help: change the parameter type to match the trait: `Vec2`
   |
   = note: expected signature `fn(Vec2, Vec2) -> f64`
              found signature `fn(Vec2, f64) -> Vec2`

error[E0053]: method `mul` has an incompatible type for trait
  --> $DIR/wrong-mul-method-signature.rs:52:29
   |
LL |     fn mul(self, s: f64) -> f64 {
   |                             ^^^
   |                             |
   |                             expected `i32`, found `f64`
   |                             help: change the output type to match the trait: `i32`
   |
   = note: expected signature `fn(Vec3, _) -> i32`
              found signature `fn(Vec3, _) -> f64`

error[E0308]: mismatched types
  --> $DIR/wrong-mul-method-signature.rs:63:45
   |
LL |     let x: Vec2 = Vec2 { x: 1.0, y: 2.0 } * 2.0; // trait had reversed order
   |                   -----------------------   ^^^ expected `Vec2`, found floating-point number
   |                   |
   |                   expected because this is `Vec2`

error[E0308]: mismatched types
  --> $DIR/wrong-mul-method-signature.rs:63:19
   |
LL |     let x: Vec2 = Vec2 { x: 1.0, y: 2.0 } * 2.0; // trait had reversed order
   |            ----   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Vec2`, found `f64`
   |            |
   |            expected due to this

error: aborting due to 5 previous errors

Some errors have detailed explanations: E0053, E0308.
For more information about an error, try `rustc --explain E0053`.