error[E0308]: mismatched types --> $DIR/span-preservation.rs:11:20 | LL | let x: usize = "hello"; | ----- ^^^^^^^ expected `usize`, found `&str` | | | expected due to this error[E0308]: mismatched types --> $DIR/span-preservation.rs:17:29 | LL | fn b(x: Option) -> usize { | ----- expected `usize` because of return type LL | match x { LL | Some(x) => { return x }, | ^ expected `usize`, found `isize` | help: you can convert an `isize` to a `usize` and panic if the converted value doesn't fit | LL | Some(x) => { return x.try_into().unwrap() }, | ++++++++++++++++++++ error[E0308]: mismatched types --> $DIR/span-preservation.rs:33:22 | LL | let x = Foo { a: 10isize }; | ^^^^^^^ expected `usize`, found `isize` error[E0560]: struct `Foo` has no field named `b` --> $DIR/span-preservation.rs:34:26 | LL | let y = Foo { a: 10, b: 10isize }; | ^ `Foo` does not have this field | = note: all struct fields are already assigned error[E0308]: mismatched types --> $DIR/span-preservation.rs:39:5 | LL | extern "C" fn bar() { | - help: try adding a return type: `-> i32` LL | 0 | ^ expected `()`, found integer error[E0308]: mismatched types --> $DIR/span-preservation.rs:44:5 | LL | extern "C" fn baz() { | - help: try adding a return type: `-> i32` LL | 0 | ^ expected `()`, found integer error[E0308]: mismatched types --> $DIR/span-preservation.rs:49:5 | LL | extern "Rust" fn rust_abi() { | - help: try adding a return type: `-> i32` LL | 0 | ^ expected `()`, found integer error[E0308]: mismatched types --> $DIR/span-preservation.rs:54:5 | LL | extern "\x43" fn c_abi_escaped() { | - help: try adding a return type: `-> i32` LL | 0 | ^ expected `()`, found integer error: aborting due to 8 previous errors Some errors have detailed explanations: E0308, E0560. For more information about an error, try `rustc --explain E0308`.