42 lines
2.0 KiB
Plaintext
42 lines
2.0 KiB
Plaintext
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error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
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--> $DIR/mut-borrow-needed-by-trait.rs:17:29
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LL | let fp = BufWriter::new(fp);
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| ^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
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= note: `std::io::Write` is implemented for `&mut dyn std::io::Write`
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= note: required by `std::io::BufWriter::<W>::new`
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error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
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--> $DIR/mut-borrow-needed-by-trait.rs:17:14
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LL | let fp = BufWriter::new(fp);
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| ^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
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= note: `std::io::Write` is implemented for `&mut dyn std::io::Write`
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= note: required by `std::io::BufWriter`
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error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
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--> $DIR/mut-borrow-needed-by-trait.rs:17:14
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LL | let fp = BufWriter::new(fp);
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| ^^^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
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= note: `std::io::Write` is implemented for `&mut dyn std::io::Write`
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= note: required by `std::io::BufWriter`
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error[E0599]: no method named `write_fmt` found for type `std::io::BufWriter<&dyn std::io::Write>` in the current scope
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--> $DIR/mut-borrow-needed-by-trait.rs:22:5
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LL | writeln!(fp, "hello world").unwrap();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `std::io::BufWriter<&dyn std::io::Write>`
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= note: the method `write_fmt` exists but the following trait bounds were not satisfied:
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`std::io::BufWriter<&dyn std::io::Write> : std::io::Write`
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: aborting due to 4 previous errors
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Some errors have detailed explanations: E0277, E0599.
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For more information about an error, try `rustc --explain E0277`.
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