1 error[E0428]: the name `m` is defined multiple times
2 --> $DIR/effective_visibilities_invariants.rs:7:1
5 | --------- previous definition of the module `m` here
8 | ^^^^^^^^^ `m` redefined here
10 = note: `m` must be defined only once in the type namespace of this module
12 error: module has missing stability attribute
13 --> $DIR/effective_visibilities_invariants.rs:3:1
15 LL | / #![feature(staged_api)]
24 error: module has missing stability attribute
25 --> $DIR/effective_visibilities_invariants.rs:5:1
30 error: aborting due to 3 previous errors
32 For more information about this error, try `rustc --explain E0428`.