error: expected unsuffixed literal, found `foo`
  --> $DIR/attr-unquoted-ident.rs:6:15
   |
LL |     #[cfg(key=foo)]
   |               ^^^
   |
help: surround the identifier with quotation marks to make it into a string literal
   |
LL |     #[cfg(key="foo")]
   |               +   +

error: expected unsuffixed literal, found `foo`
  --> $DIR/attr-unquoted-ident.rs:12:15
   |
LL |     #[cfg(key=foo bar baz)]
   |               ^^^
   |
help: surround the identifier with quotation marks to make it into a string literal
   |
LL |     #[cfg(key="foo bar baz")]
   |               +           +

error: expected unsuffixed literal, found `nickname`
  --> $DIR/attr-unquoted-ident.rs:21:38
   |
LL |     ($name:ident) => { #[doc(alias = $name)] pub struct S; }
   |                                      ^^^^^
...
LL | make!(nickname);
   | --------------- in this macro invocation
   |
   = note: this error originates in the macro `make` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 3 previous errors