error: Deref cannot be derived for multi-field structs without a `#[deref]` attribute on one field.
 --> tests/inc/deref/struct_tuple.rs:4:1
  |
4 | / #[ allow( dead_code ) ]
5 | | #[ derive ( Deref ) ]
6 | | struct StructTuple( String, i32 );
  | |__________________________________^

warning: unused import: `core::ops::Deref`
 --> tests/inc/deref/struct_tuple.rs:1:5
  |
1 | use core::ops::Deref;
  |     ^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error[E0601]: `main` function not found in crate `$CRATE`
 --> tests/inc/deref/struct_tuple.rs:8:43
  |
8 | include!( "./only_test/struct_tuple.rs" );
  |                                           ^ consider adding a `main` function to `$DIR/tests/inc/deref/struct_tuple.rs`
