fixing CI #18

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1 error and 19 warnings

Process completed with exit code 1.

the feature `core_intrinsics` is internal to the compiler or standard library

unexpected `cfg` condition value: `nts`

unexpected `cfg` condition value: `nts`

unexpected `cfg` condition value: `nts`

unexpected `cfg` condition value: `nts`

the feature `exclusive_range_pattern` has been stable since 1.80.0 and no longer requires an attribute to enable

unused variable: `line_number`

unused variable: `vector_sources`

unused variable: `may_have_singletons`

variants `CommutativeSimple`, `XorShift`, `Xxh3`, and `SipHash` are never constructed

unused import: `check_doc::*`

unused import: `binding::*`

unused variable: `sub_call`

unused variable: `x`

unused variable: `sub_call`

unused variable: `modifiers`

unused variable: `init_path`

method `is_empty` is never used