error: requires at least a format string argument --> $DIR/format-parse-errors.rs:2:5 | LL | format!(); //~ ERROR requires at least a format string argument | ^^^^^^^^^^ | = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) error: expected expression, found keyword `struct` --> $DIR/format-parse-errors.rs:3:13 | LL | format!(struct); //~ ERROR expected expression | ^^^^^^ expected expression error: expected expression, found `` --> $DIR/format-parse-errors.rs:4:23 | LL | format!("s", name =); //~ ERROR expected expression | ^ expected expression error: expected expression, found keyword `struct` --> $DIR/format-parse-errors.rs:5:24 | LL | format!("s", foo = struct); //~ ERROR expected expression | ^^^^^^ expected expression error: expected expression, found keyword `struct` --> $DIR/format-parse-errors.rs:6:18 | LL | format!("s", struct); //~ ERROR expected expression | ^^^^^^ expected expression error: format argument must be a string literal --> $DIR/format-parse-errors.rs:9:13 | LL | format!(123); //~ ERROR format argument must be a string literal | ^^^ help: you might be missing a string literal to format with | LL | format!("{}", 123); //~ ERROR format argument must be a string literal | ^^^^^ error: aborting due to 6 previous errors