+
+attr_invalid_meta_item =
+ incorrect meta item
+
+attr_invalid_issue_string =
+ `issue` must be a non-zero numeric string or "none"
+attr_must_not_be_zero =
+ `issue` must not be "0", use "none" instead
+attr_empty =
+ cannot parse integer from empty string
+attr_invalid_digit =
+ invalid digit found in string
+attr_pos_overflow =
+ number too large to fit in target type
+attr_neg_overflow =
+ number too small to fit in target type
+
+attr_missing_issue =
+ missing 'issue'
+
+attr_rustc_promotable_pairing =
+ `rustc_promotable` attribute must be paired with either a `rustc_const_unstable` or a `rustc_const_stable` attribute
+
+attr_rustc_allowed_unstable_pairing =
+ `rustc_allowed_through_unstable_modules` attribute must be paired with a `stable` attribute
+
+attr_soft_no_args =
+ `soft` should not have any arguments