mirror of https://github.com/rust-lang/rust
41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
error[E0053]: method `fmt` has an incompatible type for trait
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--> $DIR/trait_type.rs:7:21
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LL | fn fmt(&self, x: &str) -> () { }
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| ^^^^
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| |
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| types differ in mutability
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| help: change the parameter type to match the trait: `&mut Formatter<'_>`
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= note: expected signature `fn(&MyType, &mut Formatter<'_>) -> Result<(), std::fmt::Error>`
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found signature `fn(&MyType, &str)`
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error[E0050]: method `fmt` has 1 parameter but the declaration in trait `std::fmt::Display::fmt` has 2
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--> $DIR/trait_type.rs:12:11
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LL | fn fmt(&self) -> () { }
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| ^^^^^ expected 2 parameters, found 1
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= note: `fmt` from trait: `fn(&Self, &mut Formatter<'_>) -> Result<(), std::fmt::Error>`
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error[E0186]: method `fmt` has a `&self` declaration in the trait, but not in the impl
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--> $DIR/trait_type.rs:17:4
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LL | fn fmt() -> () { }
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| ^^^^^^^^^^^^^^ expected `&self` in impl
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= note: `fmt` from trait: `fn(&Self, &mut Formatter<'_>) -> Result<(), std::fmt::Error>`
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error[E0046]: not all trait items implemented, missing: `fmt`
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--> $DIR/trait_type.rs:21:1
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LL | impl std::fmt::Display for MyType4 {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `fmt` in implementation
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= help: implement the missing item: `fn fmt(&self, _: &mut Formatter<'_>) -> Result<(), std::fmt::Error> { todo!() }`
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error: aborting due to 4 previous errors
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Some errors have detailed explanations: E0046, E0050, E0053, E0186.
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For more information about an error, try `rustc --explain E0046`.
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