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5b54286640
Remove the "which is required by `{root_obligation}`" post-script in
"the trait `X` is not implemented for `Y`" explanation in E0277. This
information is already conveyed in the notes explaining requirements,
making it redundant while making the text (particularly in labels)
harder to read.
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
vs the prior
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`, which is required by `Option<NotCopy>: Copy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
82 lines
3.3 KiB
Plaintext
82 lines
3.3 KiB
Plaintext
error[E0277]: the size for values of type `str` cannot be known at compilation time
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--> $DIR/str-mut-idx.rs:4:15
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LL | s[1..2] = bot();
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| ^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `str`
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note: required by an implicit `Sized` bound in `bot`
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--> $DIR/str-mut-idx.rs:1:8
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LL | fn bot<T>() -> T { loop {} }
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| ^ required by the implicit `Sized` requirement on this type parameter in `bot`
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help: consider relaxing the implicit `Sized` restriction
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LL | fn bot<T: ?Sized>() -> T { loop {} }
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| ++++++++
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error[E0277]: the size for values of type `str` cannot be known at compilation time
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--> $DIR/str-mut-idx.rs:4:5
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LL | s[1..2] = bot();
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| ^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `str`
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= note: the left-hand-side of an assignment must have a statically known size
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error[E0277]: the type `str` cannot be indexed by `usize`
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--> $DIR/str-mut-idx.rs:7:7
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LL | s[1usize] = bot();
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| ^^^^^^ string indices are ranges of `usize`
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= help: the trait `SliceIndex<str>` is not implemented for `usize`
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= help: the trait `SliceIndex<[_]>` is implemented for `usize`
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= help: for that trait implementation, expected `[_]`, found `str`
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= note: required for `str` to implement `Index<usize>`
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error[E0277]: the type `str` cannot be indexed by `{integer}`
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--> $DIR/str-mut-idx.rs:9:15
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LL | s.get_mut(1);
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| ------- ^ string indices are ranges of `usize`
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| required by a bound introduced by this call
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= help: the trait `SliceIndex<str>` is not implemented for `{integer}`
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= note: you can use `.chars().nth()` or `.bytes().nth()`
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for more information, see chapter 8 in The Book: <https://doc.rust-lang.org/book/ch08-02-strings.html#indexing-into-strings>
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= help: the trait `SliceIndex<[_]>` is implemented for `usize`
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= help: for that trait implementation, expected `[_]`, found `str`
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note: required by a bound in `core::str::<impl str>::get_mut`
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--> $SRC_DIR/core/src/str/mod.rs:LL:COL
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error[E0277]: the type `str` cannot be indexed by `{integer}`
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--> $DIR/str-mut-idx.rs:11:25
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LL | s.get_unchecked_mut(1);
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| ----------------- ^ string indices are ranges of `usize`
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| required by a bound introduced by this call
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= help: the trait `SliceIndex<str>` is not implemented for `{integer}`
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= note: you can use `.chars().nth()` or `.bytes().nth()`
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for more information, see chapter 8 in The Book: <https://doc.rust-lang.org/book/ch08-02-strings.html#indexing-into-strings>
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= help: the trait `SliceIndex<[_]>` is implemented for `usize`
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= help: for that trait implementation, expected `[_]`, found `str`
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note: required by a bound in `core::str::<impl str>::get_unchecked_mut`
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--> $SRC_DIR/core/src/str/mod.rs:LL:COL
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error[E0277]: the type `str` cannot be indexed by `char`
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--> $DIR/str-mut-idx.rs:13:7
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LL | s['c'];
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| ^^^ string indices are ranges of `usize`
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= help: the trait `SliceIndex<str>` is not implemented for `char`
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= note: required for `str` to implement `Index<char>`
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error: aborting due to 6 previous errors
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For more information about this error, try `rustc --explain E0277`.
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