[rustc.git] / src / test / ui / suggestions / suggest-change-mut.stderr

error[E0277]: the trait bound `&T: std::io::Read` is not satisfied
  --> $DIR/suggest-change-mut.rs:12:48
   |
LL |         let mut stream_reader = BufReader::new(&stream);
   |                                                ^^^^^^^ the trait `std::io::Read` is not implemented for `&T`
   |
note: required by `BufReader::<R>::new`
  --> $SRC_DIR/std/src/io/buffered/bufreader.rs:LL:COL
   |
LL |     pub fn new(inner: R) -> BufReader<R> {
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: consider removing the leading `&`-reference
   |
LL |         let mut stream_reader = BufReader::new(stream);
   |                                               --
help: consider introducing a `where` bound, but there might be an alternative better way to express this requirement
   |
LL | fn issue_81421<T: Read + Write>(mut stream: T) where &T: std::io::Read {
   |                                                ^^^^^^^^^^^^^^^^^^^^^^^
help: consider changing this borrow's mutability
   |
LL |         let mut stream_reader = BufReader::new(&mut stream);
   |                                                ^^^^

error[E0599]: the method `read_until` exists for struct `BufReader<&T>`, but its trait bounds were not satisfied
  --> $DIR/suggest-change-mut.rs:16:23
   |
LL |         stream_reader.read_until(b'\n', &mut buffer).expect("Reading into buffer failed");
   |                       ^^^^^^^^^^ method cannot be called on `BufReader<&T>` due to unsatisfied trait bounds
   | 
  ::: $SRC_DIR/std/src/io/buffered/bufreader.rs:LL:COL
   |
LL | pub struct BufReader<R> {
   | ----------------------- doesn't satisfy `BufReader<&T>: BufRead`
   |
   = note: the following trait bounds were not satisfied:
           `&T: std::io::Read`
           which is required by `BufReader<&T>: BufRead`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0277, E0599.
For more information about an error, try `rustc --explain E0277`.
Commit	Line	Data
6a06907d XL	1	error[E0277]: the trait bound `&T: std::io::Read` is not satisfied
	2	--> $DIR/suggest-change-mut.rs:12:48
	3	\|
	4	LL \| let mut stream_reader = BufReader::new(&stream);
	5	\| ^^^^^^^ the trait `std::io::Read` is not implemented for `&T`
	6	\|
136023e0 XL	7	note: required by `BufReader::<R>::new`
	8	--> $SRC_DIR/std/src/io/buffered/bufreader.rs:LL:COL
	9	\|
	10	LL \| pub fn new(inner: R) -> BufReader<R> {
	11	\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
6a06907d XL	12	help: consider removing the leading `&`-reference
	13	\|
	14	LL \| let mut stream_reader = BufReader::new(stream);
	15	\| --
	16	help: consider introducing a `where` bound, but there might be an alternative better way to express this requirement
	17	\|
	18	LL \| fn issue_81421<T: Read + Write>(mut stream: T) where &T: std::io::Read {
	19	\| ^^^^^^^^^^^^^^^^^^^^^^^
	20	help: consider changing this borrow's mutability
	21	\|
	22	LL \| let mut stream_reader = BufReader::new(&mut stream);
	23	\| ^^^^
	24
	25	error[E0599]: the method `read_until` exists for struct `BufReader<&T>`, but its trait bounds were not satisfied
	26	--> $DIR/suggest-change-mut.rs:16:23
	27	\|
	28	LL \| stream_reader.read_until(b'\n', &mut buffer).expect("Reading into buffer failed");
	29	\| ^^^^^^^^^^ method cannot be called on `BufReader<&T>` due to unsatisfied trait bounds
	30	\|
	31	::: $SRC_DIR/std/src/io/buffered/bufreader.rs:LL:COL
	32	\|
	33	LL \| pub struct BufReader<R> {
	34	\| ----------------------- doesn't satisfy `BufReader<&T>: BufRead`
	35	\|
	36	= note: the following trait bounds were not satisfied:
	37	`&T: std::io::Read`
	38	which is required by `BufReader<&T>: BufRead`
	39
	40	error: aborting due to 2 previous errors
	41
	42	Some errors have detailed explanations: E0277, E0599.
	43	For more information about an error, try `rustc --explain E0277`.