1 error: expected expression, found `$`
2 --> $DIR/issue-6596-1.rs:3:9
5 | ^^^^^^^^^^^^ expected expression
8 | ------- in this macro invocation
10 = note: this error originates in the macro `e` (in Nightly builds, run with -Z macro-backtrace for more info)
12 error: aborting due to 1 previous error