Fixing warnings

Author: vsubhuman

package.json

@@ -9,7 +9,7 @@
     "rust:build-asm": "(rimraf ./rust/pkg && cd rust; wasm-pack build --target=browser; wasm-pack pack) && npm run asm:build && npm run js:flowgen",
     "rust:publish": "cd rust && cargo publish && cd ../",
     "asm:build": "./binaryen/bin/wasm2js ./rust/pkg/cardano_serialization_lib_bg.wasm --output ./rust/pkg/cardano_serialization_lib.asm.js && node ./scripts/wasm-to-asm",
-    "rust:check-warnings": "(cd rust; RUSTFLAGS=\"-D warnings\" cargo build)",
+    "rust:check-warnings": "(cd rust; RUSTFLAGS=\"-D warnings\" cargo +stable build)",
     "rust:test": "(cd rust; cargo test)",
     "js:flowgen": "flowgen ./rust/pkg/cardano_serialization_lib.d.ts -o ./rust/pkg/cardano_serialization_lib.js.flow --add-flow-header",
     "js:prepublish": "npm run rust:test && rimraf ./publish && cp -r ./rust/pkg ./publish && cp README.md publish/ && cp LICENSE publish/",

rust/src/tx_builder.rs

@@ -842,7 +842,7 @@ impl TransactionBuilder {
                         // recall: min_fee assumed the fee was the maximum possible so we definitely have enough input to cover whatever fee it ends up being
                         builder.set_fee(burn_amount);
                         Ok(false) // not enough input to covert the extra fee from adding an output so we just burn whatever is left
-                    };
+                    }
                     match change_estimator.coin() >= min_ada {
                         false => burn_extra(self, &change_estimator.coin()),
                         true => {

rust/src/utils.rs

@@ -1036,7 +1036,7 @@ fn bundle_size(
             // converts bytes to 8-byte long words, rounding up
             fn roundup_bytes_to_words(b: usize) -> usize {
                 quot(b + 7, 8)
-            };
+            }
             constants.k0 + roundup_bytes_to_words(
                 (num_assets * constants.k1) + sum_asset_name_lengths +
                 (constants.k2 * sum_policy_id_lengths)