mirror of https://github.com/rust-lang/rust
110 lines
4.2 KiB
Plaintext
110 lines
4.2 KiB
Plaintext
error[E0277]: `()` doesn't implement `std::fmt::Display`
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--> $DIR/binding-assigned-block-without-tail-expression.rs:14:20
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LL | 42;
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| - help: remove this semicolon
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...
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LL | println!("{}", x);
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| ^ `()` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `()`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: `()` doesn't implement `std::fmt::Display`
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--> $DIR/binding-assigned-block-without-tail-expression.rs:15:20
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LL | let y = {};
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| -- this empty block is missing a tail expression
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...
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LL | println!("{}", y);
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| ^ `()` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `()`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: `()` doesn't implement `std::fmt::Display`
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--> $DIR/binding-assigned-block-without-tail-expression.rs:16:20
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LL | "hi";
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| - help: remove this semicolon
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...
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LL | println!("{}", z);
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| ^ `()` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `()`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: `()` doesn't implement `std::fmt::Display`
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--> $DIR/binding-assigned-block-without-tail-expression.rs:17:20
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LL | let s = {
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| _____________-
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LL | | S;
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LL | | };
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| |_____- this block is missing a tail expression
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...
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LL | println!("{}", s);
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| ^ `()` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `()`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0308]: mismatched types
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--> $DIR/binding-assigned-block-without-tail-expression.rs:18:18
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LL | 42;
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| - help: remove this semicolon
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...
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LL | let _: i32 = x;
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| --- ^ expected `i32`, found `()`
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| |
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| expected due to this
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error[E0308]: mismatched types
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--> $DIR/binding-assigned-block-without-tail-expression.rs:19:18
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LL | let y = {};
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| -- this empty block is missing a tail expression
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...
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LL | let _: i32 = y;
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| --- ^ expected `i32`, found `()`
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| |
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| expected due to this
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error[E0308]: mismatched types
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--> $DIR/binding-assigned-block-without-tail-expression.rs:20:18
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LL | let z = {
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| _____________-
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LL | | "hi";
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LL | | };
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| |_____- this block is missing a tail expression
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...
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LL | let _: i32 = z;
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| --- ^ expected `i32`, found `()`
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| |
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| expected due to this
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error[E0308]: mismatched types
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--> $DIR/binding-assigned-block-without-tail-expression.rs:21:18
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LL | let s = {
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| _____________-
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LL | | S;
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LL | | };
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| |_____- this block is missing a tail expression
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...
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LL | let _: i32 = s;
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| --- ^ expected `i32`, found `()`
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| expected due to this
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error: aborting due to 8 previous errors
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Some errors have detailed explanations: E0277, E0308.
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For more information about an error, try `rustc --explain E0277`.
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