error[E0261]: use of undeclared lifetime name `'s`
  --> $DIR/ice-mutability-error-slicing-121807.rs:17:31
   |
LL |     extern "C" fn read_dword(&'s self) -> u16 {
   |                               ^^ undeclared lifetime
   |
help: consider introducing lifetime `'s` here
   |
LL |     extern "C" fn read_dword<'s>(&'s self) -> u16 {
   |                             ++++
help: consider introducing lifetime `'s` here
   |
LL | impl<'s> MemoryUnit for ROM {
   |     ++++

warning: anonymous parameters are deprecated and will be removed in the next edition
  --> $DIR/ice-mutability-error-slicing-121807.rs:7:30
   |
LL |     extern "C" fn read_dword(Self::Assoc<'_>) -> u16;
   |                              ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Assoc<'_>`
   |
   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
   = note: `#[warn(anonymous_parameters)]` on by default

error[E0220]: associated type `Assoc` not found for `Self`
  --> $DIR/ice-mutability-error-slicing-121807.rs:7:36
   |
LL |     extern "C" fn read_dword(Self::Assoc<'_>) -> u16;
   |                                    ^^^^^ associated type `Assoc` not found

error[E0185]: method `read_dword` has a `&self` declaration in the impl, but not in the trait
  --> $DIR/ice-mutability-error-slicing-121807.rs:17:5
   |
LL |     extern "C" fn read_dword(Self::Assoc<'_>) -> u16;
   |     ------------------------------------------------- trait method declared without `&self`
...
LL |     extern "C" fn read_dword(&'s self) -> u16 {
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `&self` used in impl

error[E0046]: not all trait items implemented, missing: `read_word`
  --> $DIR/ice-mutability-error-slicing-121807.rs:15:1
   |
LL |     extern "C" fn read_word(&mut self) -> u8;
   |     ----------------------------------------- `read_word` from trait
...
LL | impl MemoryUnit for ROM {
   | ^^^^^^^^^^^^^^^^^^^^^^^ missing `read_word` in implementation

error: aborting due to 4 previous errors; 1 warning emitted

Some errors have detailed explanations: E0046, E0185, E0220, E0261.
For more information about an error, try `rustc --explain E0046`.