Attempted to access a method like a field.
Erroneous code example:
```compile_fail,E0615
struct Foo {
x: u32,
}
impl Foo {
fn method(&self) {}
}
let f = Foo { x: 0 };
f.method; // error: attempted to take value of method `method` on type `Foo`
```
If you want to use a method, add `()` after it:
```
# struct Foo { x: u32 }
# impl Foo { fn method(&self) {} }
# let f = Foo { x: 0 };
f.method();
```
However, if you wanted to access a field of a struct check that the field name
is spelled correctly. Example:
```
# struct Foo { x: u32 }
# impl Foo { fn method(&self) {} }
# let f = Foo { x: 0 };
println!("{}", f.x);
```