error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:16:12
   |
LL |     demo3!(foo#bar);
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo3!(foo #bar);
   |               +

error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:17:12
   |
LL |     demo2!(foo"bar");
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo2!(foo "bar");
   |               +

error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:18:12
   |
LL |     demo2!(foo'b');
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo2!(foo 'b');
   |               +

error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:20:12
   |
LL |     demo2!(foo'b);
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo2!(foo 'b);
   |               +

error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:21:12
   |
LL |     demo3!(foo# bar);
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo3!(foo # bar);
   |               +

error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:22:12
   |
LL |     demo4!(foo#! bar);
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo4!(foo #! bar);
   |               +

error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:23:12
   |
LL |     demo4!(foo## bar);
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo4!(foo ## bar);
   |               +

error: prefix `foo` is unknown
  --> $DIR/reserved-prefixes.rs:25:12
   |
LL |     demo4!(foo#bar#);
   |            ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo4!(foo #bar#);
   |               +

error: prefix `bar` is unknown
  --> $DIR/reserved-prefixes.rs:25:16
   |
LL |     demo4!(foo#bar#);
   |                ^^^ unknown prefix
   |
   = note: prefixed identifiers and literals are reserved since Rust 2021
help: consider inserting whitespace here
   |
LL |     demo4!(foo#bar #);
   |                   +

error: aborting due to 9 previous errors