src/test/ui/suggestions/mut-borrow-needed-by-trait.stderr

   1 error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
   2   --> $DIR/mut-borrow-needed-by-trait.rs:17:29
   3    |
   4 LL |     let fp = BufWriter::new(fp);
   5    |                             ^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
   6    |
   7    = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write`
   8    = note: required by `std::io::BufWriter::<W>::new`
   9
  10 error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
  11   --> $DIR/mut-borrow-needed-by-trait.rs:17:14
  12    |
  13 LL |     let fp = BufWriter::new(fp);
  14    |              ^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
  15    |
  16    = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write`
  17    = note: required by `std::io::BufWriter`
  18
  19 error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied
  20   --> $DIR/mut-borrow-needed-by-trait.rs:17:14
  21    |
  22 LL |     let fp = BufWriter::new(fp);
  23    |              ^^^^^^^^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `&dyn std::io::Write`
  24    |
  25    = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write`
  26    = note: required by `std::io::BufWriter`
  27
  28 error[E0599]: no method named `write_fmt` found for type `std::io::BufWriter<&dyn std::io::Write>` in the current scope
  29   --> $DIR/mut-borrow-needed-by-trait.rs:22:5
  30    |
  31 LL |     writeln!(fp, "hello world").unwrap();
  32    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `std::io::BufWriter<&dyn std::io::Write>`
  33    |
  34    = note: the method `write_fmt` exists but the following trait bounds were not satisfied:
  35            `std::io::BufWriter<&dyn std::io::Write> : std::io::Write`
  36    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
  37
  38 error: aborting due to 4 previous errors
  39
  40 Some errors have detailed explanations: E0277, E0599.
  41 For more information about an error, try `rustc --explain E0277`.