error[E0515]: cannot return value referencing temporary value
  --> $DIR/issue-27592.rs:16:14
   |
LL |     write(|| format_args!("{}", String::from("Hello world")));
   |              ^^^^^^^^^^^^^^^^^^^---------------------------^
   |              |                  |
   |              |                  temporary value created here
   |              returns a value referencing data owned by the current function
   |
   = note: this error originates in the macro `format_args` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0515]: cannot return reference to temporary value
  --> $DIR/issue-27592.rs:16:14
   |
LL |     write(|| format_args!("{}", String::from("Hello world")));
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returns a reference to data owned by the current function
   |
   = note: this error originates in the macro `format_args` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0515`.