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#![allow(warnings)]
use std::io::{BufRead, BufReader, Read, Write};
fn issue_81421<T: Read + Write>(mut stream: T) { //~ HELP consider introducing a `where` clause
let initial_message = format!("Hello world");
let mut buffer: Vec<u8> = Vec::new();
let bytes_written = stream.write_all(initial_message.as_bytes());
let flush = stream.flush();
loop {
let mut stream_reader = BufReader::new(&stream);
//~^ ERROR the trait bound `&T: std::io::Read` is not satisfied [E0277]
//~| HELP consider removing the leading `&`-reference
//~| HELP consider changing this borrow's mutability
stream_reader.read_until(b'\n', &mut buffer).expect("Reading into buffer failed");
//~^ ERROR the method `read_until` exists for struct `BufReader<&T>`,
}
}
fn main() {}
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