error: expected followed by `,`
 --> tests/fail/05-no-comma.rs:8:26
  |
8 |                 #[sealed(erase pub(crate))]
  |                          ^^^^^

error[E0433]: failed to resolve: could not find `__seal_t` in `nesting`
  --> tests/fail/05-no-comma.rs:17:1
   |
17 | #[sealed]
   | ^^^^^^^^^ could not find `__seal_t` in `nesting`
   |
   = note: this error originates in the attribute macro `sealed` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0405]: cannot find trait `T` in module `lets::attempt::some::nesting`
  --> tests/fail/05-no-comma.rs:18:36
   |
18 | impl lets::attempt::some::nesting::T for A {}
   |                                    ^ not found in `lets::attempt::some::nesting`