### Describe the Bug Error is displayed when i execute 'wasm-pack build' command ### Steps to Reproduce 1. Firstly ,i want to re-line code from https://github.com/paritytech/stateless-blockchain 2. When i execute wasm-pack build on package accumulator-client 3. Error displayed"the legacy llvm-style asm syntax is no longer supported" ### Expected Behavior Execute command wasm-pack build will be successful ### Actual Behavior Error displayed If applicable, add screenshots to help explain your problem. 