Add [lints] table to suppress lints across all our crates

This was stabilized in 1.74.  Until that's our MSRV, keep the warnings also in
"lib.rs", to prevent warning spew on old builds (CI logs etc.).

Cargo.toml

@@ -73,3 +73,27 @@ benchmark = []
 # The following features are auto-detected by the build-script and should not be enabled manually.
 asan = []
 bsd = []
+
+[lints]
+rust.non_camel_case_types = "allow"
+rust.dead_code = "allow"
+rust.non_upper_case_globals = "allow"
+rust.unstable_name_collisions = "allow"
+clippy.bool_assert_comparison = "allow"
+clippy.box_default = "allow"
+clippy.collapsible_if = "allow"
+clippy.comparison_chain = "allow"
+clippy.derivable_impls = "allow"
+clippy.field_reassign_with_default = "allow"
+clippy.get_first = "allow"
+clippy.if_same_then_else = "allow"
+clippy.manual_is_ascii_check = "allow"
+clippy.mut_from_ref = "allow"
+clippy.needless_return = "allow"
+clippy.option_map_unit_fn = "allow"
+clippy.ptr_arg = "allow"
+clippy.redundant_slicing = "allow"
+clippy.too_many_arguments = "allow"
+clippy.uninlined_format_args = "allow"
+clippy.unnecessary_to_owned = "allow"
+clippy.unnecessary_unwrap = "allow"

fish-rust/src/lib.rs

@@ -1,3 +1,4 @@
+// Delete this once we require Rust 1.74.
 #![cfg_attr(feature = "benchmark", feature(test))]
 #![allow(non_camel_case_types)]
 #![allow(dead_code)]