an identifier

attr_parsing_rustc_allowed_unstable_pairing =
    `rustc_allowed_through_unstable_modules` attribute must be paired with a `stable` attribute

attr_parsing_rustc_promotable_pairing =
    `rustc_promotable` attribute must be paired with either a `rustc_const_unstable` or a `rustc_const_stable` attribute

attr_parsing_soft_no_args =
    `soft` should not have any arguments

attr_parsing_stability_outside_std = stability attributes may not be used outside of the standard library

attr_parsing_unknown_meta_item =
    unknown meta item '{$item}'
    .label = expected one of {$expected}

attr_parsing_unknown_version_literal =
    unknown version literal format, assuming it refers to a future version

attr_parsing_unrecognized_repr_hint =
    unrecognized representation hint
    .help = valid reprs are `Rust` (default), `C`, `align`, `packed`, `transparent`, `simd`, `i8`, `u8`, `i16`, `u16`, `i32`, `u32`, `i64`, `u64`, `i128`, `u128`, `isize`, `usize`

attr_parsing_unstable_cfg_target_compact =
    compact `cfg(target(..))` is experimental and subject to change

attr_parsing_unsupported_literal_cfg_boolean =
    literal in `cfg` predicate value must be a boolean
attr_parsing_unsupported_literal_cfg_string =
    literal in `cfg` predicate value must be a string
attr_parsing_unsupported_literal_deprecated_kv_pair =
    item in `deprecated` must be a key/value pair
attr_parsing_unsupported_literal_deprecated_string =
    literal in `deprecated` value must be a string
attr_parsing_unsupported_literal_generic =
    unsupported literal
attr_parsing_unsupported_literal_suggestion =
    consider removing the prefix

attr_parsing_unused_multiple =
    multiple `{$name}` attributes
    .suggestion = remove this attribute
    .note = attribute also specified here