error: an inner attribute is not permitted in this context
  --> $DIR/check-cfg_attr-ice.rs:60:9
   |
LL |         #![cfg_attr::no_such_thing]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files
   = note: outer attributes, like `#[test]`, annotate the item following them

error[E0658]: attributes on expressions are experimental
  --> $DIR/check-cfg_attr-ice.rs:45:9
   |
LL |         #[cfg_attr::no_such_thing]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
   = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:52:3
   |
LL | #[cfg_attr::no_such_thing]
   |   ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:55:7
   |
LL |     #[cfg_attr::no_such_thing]
   |       ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:57:17
   |
LL |     GiveYouUp(#[cfg_attr::no_such_thing] u8),
   |                 ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:64:11
   |
LL |         #[cfg_attr::no_such_thing]
   |           ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:41:7
   |
LL |     #[cfg_attr::no_such_thing]
   |       ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:43:15
   |
LL |     fn from(#[cfg_attr::no_such_thing] any_other_guy: AnyOtherGuy) -> This {
   |               ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:45:11
   |
LL |         #[cfg_attr::no_such_thing]
   |           ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:32:3
   |
LL | #[cfg_attr::no_such_thing]
   |   ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:24:3
   |
LL | #[cfg_attr::no_such_thing]
   |   ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:27:7
   |
LL |     #[cfg_attr::no_such_thing]
   |       ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:16:3
   |
LL | #[cfg_attr::no_such_thing]
   |   ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:19:7
   |
LL |     #[cfg_attr::no_such_thing]
   |       ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error[E0433]: failed to resolve: use of undeclared crate or module `cfg_attr`
  --> $DIR/check-cfg_attr-ice.rs:12:3
   |
LL | #[cfg_attr::no_such_thing]
   |   ^^^^^^^^ use of undeclared crate or module `cfg_attr`

error: aborting due to 15 previous errors

Some errors have detailed explanations: E0433, E0658.
For more information about an error, try `rustc --explain E0433`.