warning: unexpected `cfg` condition name: `target_oz`
  --> $DIR/well-known-names.rs:6:7
   |
LL | #[cfg(target_oz = "linux")]
   |       ^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(unexpected_cfgs)]` on by default
help: there is a config with a similar name and value
   |
LL | #[cfg(target_os = "linux")]
   |       ~~~~~~~~~

warning: unexpected `cfg` condition name: `features`
  --> $DIR/well-known-names.rs:13:7
   |
LL | #[cfg(features = "foo")]
   |       --------^^^^^^^^
   |       |
   |       help: there is a config with a similar name: `feature`

warning: unexpected `cfg` condition name: `uniw`
  --> $DIR/well-known-names.rs:20:7
   |
LL | #[cfg(uniw)]
   |       ^^^^ help: there is a config with a similar name: `unix`

warning: 3 warnings emitted