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error[E0716]: temporary value dropped while borrowed
--> $DIR/issue-114374-invalid-help-fmt-args.rs:5:13
|
LL | let x = format_args!("a {} {} {}.", 1, format_args!("b{}!", 2), 3);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- temporary value is freed at the end of this statement
| |
| creates a temporary value which is freed while still in use
...
LL | bar(x);
| - borrow later used here
|
= note: the result of `format_args!` can only be assigned directly if no placeholders in its arguments are used
= note: to learn more, visit <https://doc.rust-lang.org/std/macro.format_args.html>
= note: this error originates in the macro `format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0716]: temporary value dropped while borrowed
--> $DIR/issue-114374-invalid-help-fmt-args.rs:10:15
|
LL | let foo = format_args!("{}", "hi");
| ^^^^^^^^^^^^^^^^^^^^^^^^- temporary value is freed at the end of this statement
| |
| creates a temporary value which is freed while still in use
LL |
LL | bar(foo);
| --- borrow later used here
|
= note: the result of `format_args!` can only be assigned directly if no placeholders in its arguments are used
= note: to learn more, visit <https://doc.rust-lang.org/std/macro.format_args.html>
= 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 E0716`.
|
