error: can't use the implicit mapping form of `try_match!` because the feature `implicit_map` is disabled
 --> tests/compile-fail/no_implicit_map/fail.rs:2:13
  |
2 |     let _ = try_match::try_match!(Some((1, 2)), Some((_0, _1)));
  |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the macro `$crate::implicit_try_match` which comes from the expansion of the macro `try_match::try_match` (in Nightly builds, run with -Z macro-backtrace for more info)