error: unknown disambiguator `hello`
  --> $DIR/email-address-localhost.rs:4:18
   |
LL | //! Email me at <hello@localhost>.
   |                  ^^^^^
   |
note: the lint level is defined here
  --> $DIR/email-address-localhost.rs:2:9
   |
LL | #![deny(warnings)]
   |         ^^^^^^^^
   = note: `#[deny(rustdoc::broken_intra_doc_links)]` implied by `#[deny(warnings)]`
   = note: see https://doc.rust-lang.org/$CHANNEL/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators

error: aborting due to previous error