error: unused array of `S` that must be used
  --> $DIR/must_use-array.rs:44:5
   |
LL |     singleton();
   |     ^^^^^^^^^^^
   |
note: the lint level is defined here
  --> $DIR/must_use-array.rs:1:9
   |
LL | #![deny(unused_must_use)]
   |         ^^^^^^^^^^^^^^^

error: unused array of `S` that must be used
  --> $DIR/must_use-array.rs:45:5
   |
LL |     many();
   |     ^^^^^^

error: unused array of `S` in tuple element 0 that must be used
  --> $DIR/must_use-array.rs:46:6
   |
LL |     ([S], 0, ());
   |      ^^^

error: unused array of implementers of `T` that must be used
  --> $DIR/must_use-array.rs:47:5
   |
LL |     array_of_impl_trait();
   |     ^^^^^^^^^^^^^^^^^^^^^

error: unused array of boxed `T` trait objects in tuple element 1 that must be used
  --> $DIR/must_use-array.rs:48:5
   |
LL |     impl_array();
   |     ^^^^^^^^^^^^

error: unused array of arrays of arrays of `S` that must be used
  --> $DIR/must_use-array.rs:50:5
   |
LL |     array_of_arrays_of_arrays();
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unused array of `S` that must be used
  --> $DIR/must_use-array.rs:52:5
   |
LL |     usize_max();
   |     ^^^^^^^^^^^

error: aborting due to 7 previous errors