message: Remove mention of diesel 2.0.
diff: @@ -1207,7 +1207,6 @@ feature resolver. Some workarounds you may want to consider:
  - Try using the previous resolver by setting `resolver = \"1\"` in `Cargo.toml`
  (see <https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions>
  for more information).
  -- Check for the 2.0 release of diesel which does not have this problem.
  ",
  unit.pkg.version(),
  features_suggestion
  