error: unused variable: `b`
  --> $DIR/param-attrs-cfg.rs:24:23
   |
LL |     #[cfg(something)] b: i32,
   |                       ^ help: consider prefixing with an underscore: `_b`
   |
note: lint level defined here
  --> $DIR/param-attrs-cfg.rs:4:9
   |
LL | #![deny(unused_variables)]
   |         ^^^^^^^^^^^^^^^^

error: unused variable: `c`
  --> $DIR/param-attrs-cfg.rs:26:40
   |
LL |     #[cfg_attr(nothing, cfg(nothing))] c: i32,
   |                                        ^ help: consider prefixing with an underscore: `_c`

error: unused variable: `b`
  --> $DIR/param-attrs-cfg.rs:72:27
   |
LL |         #[cfg(something)] b: i32,
   |                           ^ help: consider prefixing with an underscore: `_b`

error: unused variable: `c`
  --> $DIR/param-attrs-cfg.rs:74:44
   |
LL |         #[cfg_attr(nothing, cfg(nothing))] c: i32,
   |                                            ^ help: consider prefixing with an underscore: `_c`

error: unused variable: `b`
  --> $DIR/param-attrs-cfg.rs:47:27
   |
LL |         #[cfg(something)] b: i32,
   |                           ^ help: consider prefixing with an underscore: `_b`

error: unused variable: `c`
  --> $DIR/param-attrs-cfg.rs:49:44
   |
LL |         #[cfg_attr(nothing, cfg(nothing))] c: i32,
   |                                            ^ help: consider prefixing with an underscore: `_c`

error: unused variable: `b`
  --> $DIR/param-attrs-cfg.rs:36:27
   |
LL |         #[cfg(something)] b: i32,
   |                           ^ help: consider prefixing with an underscore: `_b`

error: unused variable: `c`
  --> $DIR/param-attrs-cfg.rs:38:44
   |
LL |         #[cfg_attr(nothing, cfg(nothing))] c: i32,
   |                                            ^ help: consider prefixing with an underscore: `_c`

error: unused variable: `b`
  --> $DIR/param-attrs-cfg.rs:58:27
   |
LL |         #[cfg(something)] b: i32,
   |                           ^ help: consider prefixing with an underscore: `_b`

error: unused variable: `c`
  --> $DIR/param-attrs-cfg.rs:60:44
   |
LL |         #[cfg_attr(nothing, cfg(nothing))] c: i32,
   |                                            ^ help: consider prefixing with an underscore: `_c`

error: aborting due to 10 previous errors