error[E0308]: mismatched types --> $DIR/track-diagnostics.rs:LL:CC | LL | const S: A = B; | ^ expected struct `A`, found struct `B` -Ztrack-diagnostics: created at compiler/rustc_infer/src/infer/error_reporting/mod.rs:LL:CC error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.