mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-31 22:41:50 +00:00
42 lines
1.9 KiB
Plaintext
42 lines
1.9 KiB
Plaintext
error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
|
|
--> $DIR/mut-borrow-needed-by-trait.rs:17:29
|
|
|
|
|
LL | let fp = BufWriter::new(fp);
|
|
| -------------- ^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
|
|
| |
|
|
| required by a bound introduced by this call
|
|
|
|
|
= note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write`
|
|
note: required by a bound in `BufWriter::<W>::new`
|
|
--> $SRC_DIR/std/src/io/buffered/bufwriter.rs:LL:COL
|
|
|
|
error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
|
|
--> $DIR/mut-borrow-needed-by-trait.rs:17:14
|
|
|
|
|
LL | let fp = BufWriter::new(fp);
|
|
| ^^^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
|
|
|
|
|
= note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write`
|
|
note: required by a bound in `BufWriter`
|
|
--> $SRC_DIR/std/src/io/buffered/bufwriter.rs:LL:COL
|
|
|
|
error[E0599]: the method `write_fmt` exists for struct `BufWriter<&dyn Write>`, but its trait bounds were not satisfied
|
|
--> $DIR/mut-borrow-needed-by-trait.rs:21:14
|
|
|
|
|
LL | writeln!(fp, "hello world").unwrap();
|
|
| ---------^^---------------- method cannot be called on `BufWriter<&dyn Write>` due to unsatisfied trait bounds
|
|
|
|
|
note: must implement `io::Write`, `fmt::Write`, or have a `write_fmt` method
|
|
--> $DIR/mut-borrow-needed-by-trait.rs:21:14
|
|
|
|
|
LL | writeln!(fp, "hello world").unwrap();
|
|
| ^^
|
|
= note: the following trait bounds were not satisfied:
|
|
`&dyn std::io::Write: std::io::Write`
|
|
which is required by `BufWriter<&dyn std::io::Write>: std::io::Write`
|
|
|
|
error: aborting due to 3 previous errors
|
|
|
|
Some errors have detailed explanations: E0277, E0599.
|
|
For more information about an error, try `rustc --explain E0277`.
|