| 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` |
| | |
| = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write` |
| = note: required by `BufWriter::<W>::new` |
| |
| 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` |
| | |
| ::: $SRC_DIR/std/src/io/buffered.rs:LL:COL |
| | |
| LL | pub struct BufWriter<W: Write> { |
| | ----- required by this bound in `BufWriter` |
| | |
| = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write` |
| |
| 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` |
| | |
| ::: $SRC_DIR/std/src/io/buffered.rs:LL:COL |
| | |
| LL | pub struct BufWriter<W: Write> { |
| | ----- required by this bound in `BufWriter` |
| | |
| = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write` |
| |
| error[E0599]: no method named `write_fmt` found for struct `BufWriter<&dyn std::io::Write>` in the current scope |
| --> $DIR/mut-borrow-needed-by-trait.rs:22:5 |
| | |
| LL | writeln!(fp, "hello world").unwrap(); |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `BufWriter<&dyn std::io::Write>` |
| | |
| ::: $SRC_DIR/std/src/io/buffered.rs:LL:COL |
| | |
| LL | pub struct BufWriter<W: Write> { |
| | ------------------------------ doesn't satisfy `BufWriter<&dyn std::io::Write>: std::io::Write` |
| | |
| = note: the method `write_fmt` exists but 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` |
| = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) |
| |
| error: aborting due to 4 previous errors |
| |
| Some errors have detailed explanations: E0277, E0599. |
| For more information about an error, try `rustc --explain E0277`. |