error[E0308]: mismatched types --> $DIR/brackets-to-braces-single-element.rs:1:24 | LL | const A: [&str; 1] = { "hello" }; | ^^^^^^^ expected `[&str; 1]`, found `&str` | help: to create an array, use square brackets instead of curly braces | LL | const A: [&str; 1] = [ "hello" ]; | ~ ~ error[E0308]: mismatched types --> $DIR/brackets-to-braces-single-element.rs:4:19 | LL | const B: &[u32] = &{ 1 }; | ^^^^^^ expected `&[u32]`, found `&{integer}` | = note: expected reference `&'static [u32]` found reference `&{integer}` help: to create an array, use square brackets instead of curly braces | LL | const B: &[u32] = &[ 1 ]; | ~ ~ error[E0308]: mismatched types --> $DIR/brackets-to-braces-single-element.rs:7:27 | LL | const C: &&[u32; 1] = &&{ 1 }; | ^ expected `[u32; 1]`, found integer | help: to create an array, use square brackets instead of curly braces | LL | const C: &&[u32; 1] = &&[ 1 ]; | ~ ~ error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0308`.