Would add the following to Cargo.toml: 1.3.0
Would add the following to go.mod: 1.3.0
Would add the following to with_comment/go.mod: 1.3.0
Would add the following to without_comment/go.mod: 1.3.0
Would add files to git:
  Cargo.toml
  go.mod
  with_comment/go.mod
  without_comment/go.mod
