Add workspace lints

crypto/dalek-ff-group/Cargo.toml

@@ -13,6 +13,9 @@ rust-version = "1.65"
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
+[lints]
+workspace = true
+
 [dependencies]
 rustversion = "1"
 

crypto/dalek-ff-group/src/lib.rs

@@ -50,6 +50,7 @@ fn u8_from_bool(bit_ref: &mut bool) -> u8 {
   let bit_ref = black_box(bit_ref);
 
   let mut bit = black_box(*bit_ref);
+  #[allow(clippy::cast_lossless)]
   let res = black_box(bit as u8);
   bit.zeroize();
   debug_assert!((res | 1) == 1);