error[E0284]: type annotations needed
  --> $DIR/issue-71584.rs:5:15
   |
LL |     d = d % n.into();
   |           -   ^^^^
   |           |
   |           type must be known at this point
   |
   = note: cannot satisfy `<u64 as Rem<_>>::Output == u64`
help: try using a fully qualified path to specify the expected types
   |
LL |     d = d % <u32 as Into<T>>::into(n);
   |             +++++++++++++++++++++++ ~

error: aborting due to previous error

For more information about this error, try `rustc --explain E0284`.