error[E0284]: type annotations needed for `SmallCString<_>`
  --> $DIR/issue-98299.rs:4:36
   |
LL |     SmallCString::try_from(p).map(|cstr| cstr);
   |     ------------                   ^^^^
   |     |
   |     type must be known at this point
   |
note: required by a const generic parameter in `SmallCString`
  --> $DIR/issue-98299.rs:10:25
   |
LL | pub struct SmallCString<const N: usize> {}
   |                         ^^^^^^^^^^^^^^ required by this const generic parameter in `SmallCString`
help: consider giving this closure parameter an explicit type, where the value of const parameter `N` is specified
   |
LL |     SmallCString::try_from(p).map(|cstr: SmallCString<N>| cstr);
   |                                        +++++++++++++++++

error[E0284]: type annotations needed for `SmallCString<_>`
  --> $DIR/issue-98299.rs:4:36
   |
LL |     SmallCString::try_from(p).map(|cstr| cstr);
   |     ------------                   ^^^^
   |     |
   |     type must be known at this point
   |
note: required for `SmallCString<_>` to implement `TryFrom<()>`
  --> $DIR/issue-98299.rs:12:22
   |
LL | impl<const N: usize> TryFrom<()> for SmallCString<N> {
   |      --------------  ^^^^^^^^^^^     ^^^^^^^^^^^^^^^
   |      |
   |      unsatisfied trait bound introduced here
help: consider giving this closure parameter an explicit type, where the value of const parameter `N` is specified
   |
LL |     SmallCString::try_from(p).map(|cstr: SmallCString<N>| cstr);
   |                                        +++++++++++++++++

error[E0284]: type annotations needed for `SmallCString<_>`
  --> $DIR/issue-98299.rs:4:36
   |
LL |     SmallCString::try_from(p).map(|cstr| cstr);
   |     -------------------------      ^^^^
   |     |
   |     type must be known at this point
   |
note: required for `SmallCString<_>` to implement `TryFrom<()>`
  --> $DIR/issue-98299.rs:12:22
   |
LL | impl<const N: usize> TryFrom<()> for SmallCString<N> {
   |      --------------  ^^^^^^^^^^^     ^^^^^^^^^^^^^^^
   |      |
   |      unsatisfied trait bound introduced here
help: consider giving this closure parameter an explicit type, where the value of const parameter `N` is specified
   |
LL |     SmallCString::try_from(p).map(|cstr: SmallCString<N>| cstr);
   |                                        +++++++++++++++++

error: aborting due to 3 previous errors

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