error[E0412]: cannot find type `Dst` in this scope
  --> $DIR/issue-101739-1.rs:8:9
   |
LL |         Dst: BikeshedIntrinsicFrom<Src, Context, ASSUME_ALIGNMENT>,
   |         ^^^ not found in this scope

error[E0308]: mismatched types
  --> $DIR/issue-101739-1.rs:8:50
   |
LL |         Dst: BikeshedIntrinsicFrom<Src, Context, ASSUME_ALIGNMENT>,
   |                                                  ^^^^^^^^^^^^^^^^ expected `Assume`, found `bool`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0308, E0412.
For more information about an error, try `rustc --explain E0308`.