error[E0401]: can't use generic parameters from outer function --> $DIR/const-param-from-outer-fn.rs:8:9 | LL | fn foo() { | - const parameter from outer function LL | fn bar() -> u32 { | --- try adding a local generic parameter in this method instead LL | X | ^ use of generic parameter from outer function error: aborting due to previous error For more information about this error, try `rustc --explain E0401`.