use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported

unused import: `rustc_serialize::json`

unused import: `Foreign`

unused imports: `CloseCode`, `Error as WsError`, `ErrorKind as WsErrorKind`, `Handler`, `Message`, `Result as WSResult`

unused imports: `TxLogEntryType`, `TxLogEntry`

unused import: `stack_epic_wallet_controller::command`

unused imports: `EpicboxMessage`, `TxProofErrorKind`

unused imports: `env`, `thread`

unused import: `std::time::Duration`

unused macro definition: `ensure_handler`

Unexpected input(s) 'flutter-version', 'channel', valid inputs are ['repository', 'ref', 'token', 'ssh-key', 'ssh-known-hosts', 'ssh-strict', 'persist-credentials', 'path', 'clean', 'sparse-checkout', 'sparse-checkout-cone-mode', 'fetch-depth', 'lfs', 'submodules', 'set-safe-directory', 'github-server-url']