warning: the borrowed expression implements the required traits --> crates/shadowsocks/src/config.rs:636:55 | 636 | URL_PASSWORD_BASE64_ENGINE.encode(&user_info) | ^^^^^^^^^^ help: change this to: `user_info` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default

warning: useless conversion to the same type: `std::result::Result<usize, std::io::Error>` --> crates/shadowsocks/src/net/udp.rs:207:24 | 207 | return Err(make_mtu_error(buf.len(), mtu)).into(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Err(make_mtu_error(buf.len(), mtu))` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion = note: `#[warn(clippy::useless_conversion)]` on by default

warning: useless conversion to the same type: `std::result::Result<usize, std::io::Error>` --> crates/shadowsocks/src/net/udp.rs:232:24 | 232 | return Err(make_mtu_error(buf.len(), mtu)).into(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Err(make_mtu_error(buf.len(), mtu))` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion

warning: unused import: `self::unix::*` --> crates/shadowsocks-service/src/local/redir/sys/mod.rs:9:17 | 9 | pub use self::unix::*; | ^^^^^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default

warning: unused import: `self::linux::*` --> crates/shadowsocks-service/src/local/redir/tcprelay/sys/unix/mod.rs:6:17 | 6 | pub use self::linux::*; | ^^^^^^^^^^^^^^

warning: unused import: `self::unix::*` --> crates/shadowsocks-service/src/local/redir/tcprelay/sys/mod.rs:6:17 | 6 | pub use self::unix::*; | ^^^^^^^^^^^^^

warning: very complex type used. Consider factoring parts into `type` definitions --> crates/shadowsocks-service/src/local/http/http_client.rs:42:17 | 42 | cache_conn: Arc<Mutex<LruCache<Address, VecDeque<(HttpConnection, Instant)>>>>, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity = note: `#[warn(clippy::type_complexity)]` on by default

warning: this expression creates a reference which is immediately dereferenced by the compiler --> crates/shadowsocks-service/src/local/http/http_client.rs:99:63 | 99 | if let Some(q) = self.cache_conn.lock().await.get_mut(&host) { | ^^^^^ help: change this to: `host` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow = note: `#[warn(clippy::needless_borrow)]` on by default

warning: this OR pattern can be rewritten using a range --> src/logging/mod.rs:58:9 | 58 | 0 | 1 | 2 | 3 => logging_builder | ^^^^^^^^^^^^^ help: try: `0..=3` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_patterns = note: `#[warn(clippy::manual_range_patterns)]` on by default