[INFO] updating cached repository tsullens/arc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tsullens/arc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tsullens/arc" "work/ex/clippy-test-run/sources/stable/gh/tsullens/arc"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/tsullens/arc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tsullens/arc" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tsullens/arc"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tsullens/arc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dd8a8a6cdb2ffe7c7b67f65b9a302a8232f09a18
[INFO] sha for GitHub repo tsullens/arc: dd8a8a6cdb2ffe7c7b67f65b9a302a8232f09a18
[INFO] validating manifest of tsullens/arc on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tsullens/arc on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tsullens/arc
[INFO] finished frobbing tsullens/arc
[INFO] frobbed toml for tsullens/arc written to work/ex/clippy-test-run/sources/stable/gh/tsullens/arc/Cargo.toml
[INFO] started frobbing tsullens/arc
[INFO] finished frobbing tsullens/arc
[INFO] frobbed toml for tsullens/arc written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tsullens/arc/Cargo.toml
[INFO] crate tsullens/arc has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting tsullens/arc against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/tsullens/arc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2b3608a242d815c0ad6c0cfb06e11fe2e461da67a83f4da7b98e9e9134fa512b
[INFO] running `"docker" "start" "-a" "2b3608a242d815c0ad6c0cfb06e11fe2e461da67a83f4da7b98e9e9134fa512b"`
[INFO] [stderr]    Compiling serde v1.0.59
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking serde-hjson v0.8.1
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking config v0.8.0
[INFO] [stderr]     Checking arc v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/server.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 152 |                 config: config,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: replace it with: `config`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/server.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 152 |                 config: config,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: replace it with: `config`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:13:22
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const ARC_CRLF: &'static str = "\r\n";
[INFO] [stderr]    |                     -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub const ARC_OK: &'static str = "+OK";
[INFO] [stderr]    |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub const ARC_ERR: &'static str = "-ERR";
[INFO] [stderr]    |                    -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/server.rs:98:28
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn tear_down(mut self) -> () {
[INFO] [stderr]    |                            ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/server.rs:108:64
[INFO] [stderr]     |
[INFO] [stderr] 108 |     pub fn write_response(&mut self, response: ClientResponse) -> () {
[INFO] [stderr]     |                                                                ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/server.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         return "Invalid configuration"
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"Invalid configuration"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/server.rs:159:33
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn inc_key_count(&self) -> () {
[INFO] [stderr]     |                                 ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/server.rs:163:33
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn dec_key_count(&self) -> () {
[INFO] [stderr]     |                                 ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/commands.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         return "Invalid command"
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"Invalid command"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/commands.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     resp
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/commands.rs:85:16
[INFO] [stderr]    |
[INFO] [stderr] 85 |       let resp = match server.config.get(key) {
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 86 | |         Some(val) => ClientResponse::Ok(val),
[INFO] [stderr] 87 | |         None => ClientResponse::Err("unknown config key".to_string()),
[INFO] [stderr] 88 | |     };
[INFO] [stderr]    | |_____^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/commands.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     return ClientResponse::Ok(String::new())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ClientResponse::Ok(String::new())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/commands.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     return ClientResponse::Ok(String::new())
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ClientResponse::Ok(String::new())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/config.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | const DEFAULT_CONFIG_FILE: &'static str = "./settings.conf";
[INFO] [stderr]   |                            -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/config.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | const DEFAULT_BIND_ADDRESS: &'static str = "127.0.0.1";
[INFO] [stderr]   |                             -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/config.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | const DEFAULT_BIND_PORT: &'static str = "7878";
[INFO] [stderr]   |                          -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         return config;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `config`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:65:32
[INFO] [stderr]    |
[INFO] [stderr] 65 |             &"bind_address" => return Some(self.bind_address.clone()),
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.bind_address.clone())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:66:24
[INFO] [stderr]    |
[INFO] [stderr] 66 |             &"port" => return Some(self.port.clone()),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.port.clone())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:67:39
[INFO] [stderr]    |
[INFO] [stderr] 67 |             &"cache_write_through" => return Some(self.cache_write_through.to_string()),
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.cache_write_through.to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:68:25
[INFO] [stderr]    |
[INFO] [stderr] 68 |             &"debug" => return Some(self.debug.to_string()),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.debug.to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/database.rs:21:59
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn update(&mut self, key: &str, val: DatabaseVal) -> () {
[INFO] [stderr]    |                                                           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/database.rs:25:59
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn update_string(&mut self, key: &str, val: &str) -> () {
[INFO] [stderr]    |                                                           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/database.rs:38:73
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn update_or_insert_set(&mut self, key: &str, vals: &Vec<&str>) -> () {
[INFO] [stderr]    |                                                                         ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/database.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return "Database error"
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"Database error"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/database.rs:156:45
[INFO] [stderr]     |
[INFO] [stderr] 156 |     pub fn add(&mut self, vals: &Vec<&str>) -> () {
[INFO] [stderr]     |                                             ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/database.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         ret_string
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/database.rs:166:26
[INFO] [stderr]     |
[INFO] [stderr] 166 |           let ret_string = iter_2.fold(
[INFO] [stderr]     |  __________________________^
[INFO] [stderr] 167 | |             String::with_capacity(t_size), 
[INFO] [stderr] 168 | |                 |mut acc, s| {
[INFO] [stderr] 169 | |                     acc.push_str(&" ");
[INFO] [stderr] ...   |
[INFO] [stderr] 172 | |                 }
[INFO] [stderr] 173 | |             );
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:13:22
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const ARC_CRLF: &'static str = "\r\n";
[INFO] [stderr]    |                     -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub const ARC_OK: &'static str = "+OK";
[INFO] [stderr]    |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/server.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub const ARC_ERR: &'static str = "-ERR";
[INFO] [stderr]    |                    -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/server.rs:98:28
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn tear_down(mut self) -> () {
[INFO] [stderr]    |                            ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/server.rs:108:64
[INFO] [stderr]     |
[INFO] [stderr] 108 |     pub fn write_response(&mut self, response: ClientResponse) -> () {
[INFO] [stderr]     |                                                                ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/server.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         return "Invalid configuration"
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"Invalid configuration"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/server.rs:159:33
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn inc_key_count(&self) -> () {
[INFO] [stderr]     |                                 ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/server.rs:163:33
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn dec_key_count(&self) -> () {
[INFO] [stderr]     |                                 ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/commands.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         return "Invalid command"
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"Invalid command"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/commands.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     resp
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/commands.rs:85:16
[INFO] [stderr]    |
[INFO] [stderr] 85 |       let resp = match server.config.get(key) {
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 86 | |         Some(val) => ClientResponse::Ok(val),
[INFO] [stderr] 87 | |         None => ClientResponse::Err("unknown config key".to_string()),
[INFO] [stderr] 88 | |     };
[INFO] [stderr]    | |_____^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/commands.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     return ClientResponse::Ok(String::new())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ClientResponse::Ok(String::new())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/commands.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     return ClientResponse::Ok(String::new())
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ClientResponse::Ok(String::new())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/config.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | const DEFAULT_CONFIG_FILE: &'static str = "./settings.conf";
[INFO] [stderr]   |                            -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/config.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | const DEFAULT_BIND_ADDRESS: &'static str = "127.0.0.1";
[INFO] [stderr]   |                             -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/config.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | const DEFAULT_BIND_PORT: &'static str = "7878";
[INFO] [stderr]   |                          -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         return config;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `config`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:65:32
[INFO] [stderr]    |
[INFO] [stderr] 65 |             &"bind_address" => return Some(self.bind_address.clone()),
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.bind_address.clone())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:66:24
[INFO] [stderr]    |
[INFO] [stderr] 66 |             &"port" => return Some(self.port.clone()),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.port.clone())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:67:39
[INFO] [stderr]    |
[INFO] [stderr] 67 |             &"cache_write_through" => return Some(self.cache_write_through.to_string()),
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.cache_write_through.to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/config.rs:68:25
[INFO] [stderr]    |
[INFO] [stderr] 68 |             &"debug" => return Some(self.debug.to_string()),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(self.debug.to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/database.rs:21:59
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn update(&mut self, key: &str, val: DatabaseVal) -> () {
[INFO] [stderr]    |                                                           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/database.rs:25:59
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn update_string(&mut self, key: &str, val: &str) -> () {
[INFO] [stderr]    |                                                           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/database.rs:38:73
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn update_or_insert_set(&mut self, key: &str, vals: &Vec<&str>) -> () {
[INFO] [stderr]    |                                                                         ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/database.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return "Database error"
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"Database error"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/database.rs:156:45
[INFO] [stderr]     |
[INFO] [stderr] 156 |     pub fn add(&mut self, vals: &Vec<&str>) -> () {
[INFO] [stderr]     |                                             ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/database.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |         ret_string
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/database.rs:166:26
[INFO] [stderr]     |
[INFO] [stderr] 166 |           let ret_string = iter_2.fold(
[INFO] [stderr]     |  __________________________^
[INFO] [stderr] 167 | |             String::with_capacity(t_size), 
[INFO] [stderr] 168 | |                 |mut acc, s| {
[INFO] [stderr] 169 | |                     acc.push_str(&" ");
[INFO] [stderr] ...   |
[INFO] [stderr] 172 | |                 }
[INFO] [stderr] 173 | |             );
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inc_key_count`
[INFO] [stderr]    --> src/server.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn inc_key_count(&self) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/server.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 | /         match stream.shutdown(Shutdown::Both) {
[INFO] [stderr] 103 | |             Err(err) => println!("Error shutting down client {}: {}", self.id, err),
[INFO] [stderr] 104 | |             _ => (),
[INFO] [stderr] 105 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Err(err) = stream.shutdown(Shutdown::Both) { println!("Error shutting down client {}: {}", self.id, err) }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/server.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         self.stream_writer.write(formatted_response.as_bytes()).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/commands.rs:72:58
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn ping_command(_server: &mut Arc<ArcServer>, _args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]    |                                                          ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/commands.rs:76:58
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn config_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]    |                                                          ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/commands.rs:95:55
[INFO] [stderr]    |
[INFO] [stderr] 95 | pub fn set_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]    |                                                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/commands.rs:102:55
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub fn get_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]     |                                                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/commands.rs:116:55
[INFO] [stderr]     |
[INFO] [stderr] 116 | pub fn del_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]     |                                                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/commands.rs:129:56
[INFO] [stderr]     |
[INFO] [stderr] 129 | pub fn sadd_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]     |                                                        ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/config.rs:36:37
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 if line.starts_with("#") {
[INFO] [stderr]    |                                     ^^^ help: try using a char instead: `'#'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/config.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 | /         match &key.to_lowercase().as_str() {
[INFO] [stderr] 65 | |             &"bind_address" => return Some(self.bind_address.clone()),
[INFO] [stderr] 66 | |             &"port" => return Some(self.port.clone()),
[INFO] [stderr] 67 | |             &"cache_write_through" => return Some(self.cache_write_through.to_string()),
[INFO] [stderr] 68 | |             &"debug" => return Some(self.debug.to_string()),
[INFO] [stderr] 69 | |             _ => None,
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 64 |         match key.to_lowercase().as_str() {
[INFO] [stderr] 65 |             "bind_address" => return Some(self.bind_address.clone()),
[INFO] [stderr] 66 |             "port" => return Some(self.port.clone()),
[INFO] [stderr] 67 |             "cache_write_through" => return Some(self.cache_write_through.to_string()),
[INFO] [stderr] 68 |             "debug" => return Some(self.debug.to_string()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/database.rs:38:61
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn update_or_insert_set(&mut self, key: &str, vals: &Vec<&str>) -> () {
[INFO] [stderr]    |                                                             ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/database.rs:47:51
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn try_update_set(&mut self, key: &str, vals: &Vec<&str>) -> Result<(), ()> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/database.rs:145:23
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn from(vals: &Vec<&str>) -> Self {
[INFO] [stderr]     |                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/database.rs:156:33
[INFO] [stderr]     |
[INFO] [stderr] 156 |     pub fn add(&mut self, vals: &Vec<&str>) -> () {
[INFO] [stderr]     |                                 ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `arc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: method is never used: `inc_key_count`
[INFO] [stderr]    --> src/server.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn inc_key_count(&self) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/server.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 | /         match stream.shutdown(Shutdown::Both) {
[INFO] [stderr] 103 | |             Err(err) => println!("Error shutting down client {}: {}", self.id, err),
[INFO] [stderr] 104 | |             _ => (),
[INFO] [stderr] 105 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Err(err) = stream.shutdown(Shutdown::Both) { println!("Error shutting down client {}: {}", self.id, err) }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/server.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         self.stream_writer.write(formatted_response.as_bytes()).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/commands.rs:72:58
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn ping_command(_server: &mut Arc<ArcServer>, _args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]    |                                                          ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/commands.rs:76:58
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn config_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]    |                                                          ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/commands.rs:95:55
[INFO] [stderr]    |
[INFO] [stderr] 95 | pub fn set_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]    |                                                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/commands.rs:102:55
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub fn get_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]     |                                                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/commands.rs:116:55
[INFO] [stderr]     |
[INFO] [stderr] 116 | pub fn del_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]     |                                                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/commands.rs:129:56
[INFO] [stderr]     |
[INFO] [stderr] 129 | pub fn sadd_command(server: &mut Arc<ArcServer>, args: &Vec<&str>) -> ClientResponse {
[INFO] [stderr]     |                                                        ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/config.rs:36:37
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 if line.starts_with("#") {
[INFO] [stderr]    |                                     ^^^ help: try using a char instead: `'#'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/config.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 | /         match &key.to_lowercase().as_str() {
[INFO] [stderr] 65 | |             &"bind_address" => return Some(self.bind_address.clone()),
[INFO] [stderr] 66 | |             &"port" => return Some(self.port.clone()),
[INFO] [stderr] 67 | |             &"cache_write_through" => return Some(self.cache_write_through.to_string()),
[INFO] [stderr] 68 | |             &"debug" => return Some(self.debug.to_string()),
[INFO] [stderr] 69 | |             _ => None,
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 64 |         match key.to_lowercase().as_str() {
[INFO] [stderr] 65 |             "bind_address" => return Some(self.bind_address.clone()),
[INFO] [stderr] 66 |             "port" => return Some(self.port.clone()),
[INFO] [stderr] 67 |             "cache_write_through" => return Some(self.cache_write_through.to_string()),
[INFO] [stderr] 68 |             "debug" => return Some(self.debug.to_string()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/database.rs:38:61
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn update_or_insert_set(&mut self, key: &str, vals: &Vec<&str>) -> () {
[INFO] [stderr]    |                                                             ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/database.rs:47:51
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn try_update_set(&mut self, key: &str, vals: &Vec<&str>) -> Result<(), ()> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/database.rs:145:23
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn from(vals: &Vec<&str>) -> Self {
[INFO] [stderr]     |                       ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/database.rs:156:33
[INFO] [stderr]     |
[INFO] [stderr] 156 |     pub fn add(&mut self, vals: &Vec<&str>) -> () {
[INFO] [stderr]     |                                 ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `arc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2b3608a242d815c0ad6c0cfb06e11fe2e461da67a83f4da7b98e9e9134fa512b"`
[INFO] running `"docker" "rm" "-f" "2b3608a242d815c0ad6c0cfb06e11fe2e461da67a83f4da7b98e9e9134fa512b"`
[INFO] [stdout] 2b3608a242d815c0ad6c0cfb06e11fe2e461da67a83f4da7b98e9e9134fa512b