error: A library_benchmark_group! needs a name

       library_benchmark_group!(name = some_ident; benchmarks = ...);
 --> tests/ui/test_library_benchmark_group_when_invalid.rs:6:5
  |
6 |     library_benchmark_group!(benchmarks = some_func);
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the macro `library_benchmark_group` (in Nightly builds, run with -Z macro-backtrace for more info)

error: A library_benchmark_group! needs at least 1 benchmark function annotated with #[library_benchmark]

       library_benchmark_group!(name = some_ident; benchmarks = some_library_benchmark);
  --> tests/ui/test_library_benchmark_group_when_invalid.rs:12:5
   |
12 | /     library_benchmark_group!(
13 | |         name = some_name;
14 | |         benchmarks =
15 | |     );
   | |_____^
   |
   = note: this error originates in the macro `library_benchmark_group` (in Nightly builds, run with -Z macro-backtrace for more info)

error: no rules expected the token `something`
  --> tests/ui/test_library_benchmark_group_when_invalid.rs:21:30
   |
21 |     library_benchmark_group!(something);
   |                              ^^^^^^^^^ no rules expected this token in macro call
   |
note: while trying to match `benchmarks`
  --> src/macros.rs
   |
   |         benchmarks = $( $function:ident ),+
   |         ^^^^^^^^^^