[INFO] fetching crate ts3plugin 0.2.1...
[INFO] checking ts3plugin-0.2.1 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate ts3plugin 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ts3plugin 0.2.1 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ts3plugin 0.2.1
[INFO] finished tweaking crates.io crate ts3plugin 0.2.1
[INFO] tweaked toml for crates.io crate ts3plugin 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.3
[INFO] [stderr]   Downloaded skeptic v0.6.1
[INFO] [stderr]   Downloaded ts3plugin-sys v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a254540be960c1e7ab4db123fa35ba522ebd2de09909e48ababf36984a905f1
[INFO] running `Command { std: "docker" "start" "-a" "1a254540be960c1e7ab4db123fa35ba522ebd2de09909e48ababf36984a905f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a254540be960c1e7ab4db123fa35ba522ebd2de09909e48ababf36984a905f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a254540be960c1e7ab4db123fa35ba522ebd2de09909e48ababf36984a905f1", kill_on_drop: false }`
[INFO] [stdout] 1a254540be960c1e7ab4db123fa35ba522ebd2de09909e48ababf36984a905f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8883ad81210b28c41da563ba0cfcb4b4baddfa9dbc3eb7d1e8e041351d4df97b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8883ad81210b28c41da563ba0cfcb4b4baddfa9dbc3eb7d1e8e041351d4df97b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ts3plugin-sys v0.3.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]     Checking pulldown-cmark v0.0.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking skeptic v0.6.1
[INFO] [stderr]    Compiling ts3plugin v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/build.rs:86:39
[INFO] [stdout]    |
[INFO] [stdout] 86 |             || self.type_s.starts_with("Vec<");;
[INFO] [stdout]    |                                                ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/build.rs:528:26
[INFO] [stdout]     |
[INFO] [stdout] 528 | fn create_server(f: &mut Write) {
[INFO] [stdout]     |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/build.rs:678:27
[INFO] [stdout]     |
[INFO] [stdout] 678 | fn create_channel(f: &mut Write) {
[INFO] [stdout]     |                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/build.rs:760:30
[INFO] [stdout]     |
[INFO] [stdout] 760 | fn create_connection(f: &mut Write) {
[INFO] [stdout]     |                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initialise`
[INFO] [stdout]    --> src/build.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn initialise(&self, initialise: bool) -> PropertyBuilder<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `method_name`
[INFO] [stdout]    --> src/build.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 |     fn method_name<S: Into<Cow<'a, str>>>(&self, method_name: S) -> PropertyBuilder<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ts3interface.rs:15:58
[INFO] [stdout]    |
[INFO] [stdout] 15 |     static ref DATA: Mutex<RefCell<(Option<(::TsApi, Box<Plugin>)>, Option<String>)>> =
[INFO] [stdout]    |                                                          ^^^^^^ help: use `dyn`: `dyn Plugin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ts3interface.rs:15:58
[INFO] [stdout]    |
[INFO] [stdout] 15 |     static ref DATA: Mutex<RefCell<(Option<(::TsApi, Box<Plugin>)>, Option<String>)>> =
[INFO] [stdout]    |                                                          ^^^^^^ help: use `dyn`: `dyn Plugin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ts3interface.rs:15:58
[INFO] [stdout]    |
[INFO] [stdout] 15 |     static ref DATA: Mutex<RefCell<(Option<(::TsApi, Box<Plugin>)>, Option<String>)>> =
[INFO] [stdout]    |                                                          ^^^^^^ help: use `dyn`: `dyn Plugin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ts3interface.rs:15:58
[INFO] [stdout]    |
[INFO] [stdout] 15 |     static ref DATA: Mutex<RefCell<(Option<(::TsApi, Box<Plugin>)>, Option<String>)>> =
[INFO] [stdout]    |                                                          ^^^^^^ help: use `dyn`: `dyn Plugin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/ts3interface.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     /// The api, plugin and plugin id
[INFO] [stdout] 15 | |     static ref DATA: Mutex<RefCell<(Option<(::TsApi, Box<Plugin>)>, Option<String>)>> =
[INFO] [stdout] 16 | |         Mutex::new(RefCell::new((None, None)));
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/ts3interface.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / lazy_static! {
[INFO] [stdout] 14 | |     /// The api, plugin and plugin id
[INFO] [stdout] 15 | |     static ref DATA: Mutex<RefCell<(Option<(::TsApi, Box<Plugin>)>, Option<String>)>> =
[INFO] [stdout] 16 | |         Mutex::new(RefCell::new((None, None)));
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/ts3plugin-ecb73ee4c6a2b41a/out/structs.rs:561:9
[INFO] [stdout]     |
[INFO] [stdout] 561 |     fn new(id: ServerId) -> OptionalServerData {
[INFO] [stdout]     |            ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:317:41
[INFO] [stdout]     |
[INFO] [stdout] 317 |         self.channels.as_mut().ok().and_then(|mut cs| cs.remove(&channel_id))
[INFO] [stdout]     |                                               ----^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:673:7
[INFO] [stdout]     |
[INFO] [stdout] 673 |         let mut server = self.servers.get_mut(&server_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ts3interface.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |     if let Some(mut data) = data.0.as_mut() {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ts3interface.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut api = &mut data.0;
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ts3interface.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut plugin = &mut data.1;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let mut server = api.get_mut_server(server_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let mut connection = server.add_connection(connection_id);
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:261:9
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:385:9
[INFO] [stdout]     |
[INFO] [stdout] 385 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:386:9
[INFO] [stdout]     |
[INFO] [stdout] 386 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:416:9
[INFO] [stdout]     |
[INFO] [stdout] 416 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:433:9
[INFO] [stdout]     |
[INFO] [stdout] 433 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:434:9
[INFO] [stdout]     |
[INFO] [stdout] 434 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:435:9
[INFO] [stdout]     |
[INFO] [stdout] 435 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:452:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:480:9
[INFO] [stdout]     |
[INFO] [stdout] 480 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:483:17
[INFO] [stdout]     |
[INFO] [stdout] 483 |             let mut server = api.get_mut_server(server_id).unwrap();
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:488:25
[INFO] [stdout]     |
[INFO] [stdout] 488 |                     let mut channel = server.get_mut_channel(channel_id).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:521:9
[INFO] [stdout]     |
[INFO] [stdout] 521 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:522:9
[INFO] [stdout]     |
[INFO] [stdout] 522 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:548:9
[INFO] [stdout]     |
[INFO] [stdout] 548 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:549:9
[INFO] [stdout]     |
[INFO] [stdout] 549 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:550:9
[INFO] [stdout]     |
[INFO] [stdout] 550 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:574:9
[INFO] [stdout]     |
[INFO] [stdout] 574 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:575:9
[INFO] [stdout]     |
[INFO] [stdout] 575 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:576:9
[INFO] [stdout]     |
[INFO] [stdout] 576 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:580:17
[INFO] [stdout]     |
[INFO] [stdout] 580 |             let mut server = api.get_mut_server(server_id).unwrap();
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:585:25
[INFO] [stdout]     |
[INFO] [stdout] 585 |                     let mut channel = server.get_mut_channel(channel_id).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:611:9
[INFO] [stdout]     |
[INFO] [stdout] 611 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:612:9
[INFO] [stdout]     |
[INFO] [stdout] 612 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:613:9
[INFO] [stdout]     |
[INFO] [stdout] 613 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:633:9
[INFO] [stdout]     |
[INFO] [stdout] 633 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:634:9
[INFO] [stdout]     |
[INFO] [stdout] 634 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:635:9
[INFO] [stdout]     |
[INFO] [stdout] 635 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:664:9
[INFO] [stdout]     |
[INFO] [stdout] 664 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:665:9
[INFO] [stdout]     |
[INFO] [stdout] 665 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 666 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:701:9
[INFO] [stdout]     |
[INFO] [stdout] 701 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:702:9
[INFO] [stdout]     |
[INFO] [stdout] 702 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:703:9
[INFO] [stdout]     |
[INFO] [stdout] 703 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:732:9
[INFO] [stdout]     |
[INFO] [stdout] 732 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:733:9
[INFO] [stdout]     |
[INFO] [stdout] 733 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:734:9
[INFO] [stdout]     |
[INFO] [stdout] 734 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:768:9
[INFO] [stdout]     |
[INFO] [stdout] 768 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:770:9
[INFO] [stdout]     |
[INFO] [stdout] 770 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:797:9
[INFO] [stdout]     |
[INFO] [stdout] 797 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/ts3plugin-ecb73ee4c6a2b41a/out/structs.rs:561:9
[INFO] [stdout]     |
[INFO] [stdout] 561 |     fn new(id: ServerId) -> OptionalServerData {
[INFO] [stdout]     |            ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:798:9
[INFO] [stdout]     |
[INFO] [stdout] 798 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:799:9
[INFO] [stdout]     |
[INFO] [stdout] 799 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:817:9
[INFO] [stdout]     |
[INFO] [stdout] 817 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:818:9
[INFO] [stdout]     |
[INFO] [stdout] 818 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:819:9
[INFO] [stdout]     |
[INFO] [stdout] 819 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:839:9
[INFO] [stdout]     |
[INFO] [stdout] 839 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:840:9
[INFO] [stdout]     |
[INFO] [stdout] 840 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:841:9
[INFO] [stdout]     |
[INFO] [stdout] 841 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:860:9
[INFO] [stdout]     |
[INFO] [stdout] 860 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:861:9
[INFO] [stdout]     |
[INFO] [stdout] 861 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:862:9
[INFO] [stdout]     |
[INFO] [stdout] 862 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:888:9
[INFO] [stdout]     |
[INFO] [stdout] 888 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:889:9
[INFO] [stdout]     |
[INFO] [stdout] 889 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:890:9
[INFO] [stdout]     |
[INFO] [stdout] 890 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:916:9
[INFO] [stdout]     |
[INFO] [stdout] 916 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:917:9
[INFO] [stdout]     |
[INFO] [stdout] 917 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:918:9
[INFO] [stdout]     |
[INFO] [stdout] 918 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:937:9
[INFO] [stdout]     |
[INFO] [stdout] 937 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:938:9
[INFO] [stdout]     |
[INFO] [stdout] 938 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:939:9
[INFO] [stdout]     |
[INFO] [stdout] 939 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:955:9
[INFO] [stdout]     |
[INFO] [stdout] 955 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:958:9
[INFO] [stdout]     |
[INFO] [stdout] 958 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:959:9
[INFO] [stdout]     |
[INFO] [stdout] 959 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:960:9
[INFO] [stdout]     |
[INFO] [stdout] 960 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:972:9
[INFO] [stdout]     |
[INFO] [stdout] 972 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:978:9
[INFO] [stdout]     |
[INFO] [stdout] 978 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:979:9
[INFO] [stdout]     |
[INFO] [stdout] 979 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:980:9
[INFO] [stdout]     |
[INFO] [stdout] 980 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:992:9
[INFO] [stdout]     |
[INFO] [stdout] 992 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:998:9
[INFO] [stdout]     |
[INFO] [stdout] 998 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:999:9
[INFO] [stdout]     |
[INFO] [stdout] 999 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1000:9
[INFO] [stdout]      |
[INFO] [stdout] 1000 |     let mut plugin = &mut data.1;
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1011:9
[INFO] [stdout]      |
[INFO] [stdout] 1011 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]      |         ----^^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1015:9
[INFO] [stdout]      |
[INFO] [stdout] 1015 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]      |         ----^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1016:9
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     let mut api = &mut data.0;
[INFO] [stdout]      |         ----^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1017:9
[INFO] [stdout]      |
[INFO] [stdout] 1017 |     let mut plugin = &mut data.1;
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:317:41
[INFO] [stdout]     |
[INFO] [stdout] 317 |         self.channels.as_mut().ok().and_then(|mut cs| cs.remove(&channel_id))
[INFO] [stdout]     |                                               ----^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:673:7
[INFO] [stdout]     |
[INFO] [stdout] 673 |         let mut server = self.servers.get_mut(&server_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ts3interface.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |     if let Some(mut data) = data.0.as_mut() {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ts3interface.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut api = &mut data.0;
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ts3interface.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut plugin = &mut data.1;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let mut server = api.get_mut_server(server_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let mut connection = server.add_connection(connection_id);
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:261:9
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 121 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:385:9
[INFO] [stdout]     |
[INFO] [stdout] 385 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:386:9
[INFO] [stdout]     |
[INFO] [stdout] 386 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:416:9
[INFO] [stdout]     |
[INFO] [stdout] 416 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:433:9
[INFO] [stdout]     |
[INFO] [stdout] 433 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:434:9
[INFO] [stdout]     |
[INFO] [stdout] 434 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:435:9
[INFO] [stdout]     |
[INFO] [stdout] 435 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:452:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:480:9
[INFO] [stdout]     |
[INFO] [stdout] 480 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:483:17
[INFO] [stdout]     |
[INFO] [stdout] 483 |             let mut server = api.get_mut_server(server_id).unwrap();
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:488:25
[INFO] [stdout]     |
[INFO] [stdout] 488 |                     let mut channel = server.get_mut_channel(channel_id).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:521:9
[INFO] [stdout]     |
[INFO] [stdout] 521 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:522:9
[INFO] [stdout]     |
[INFO] [stdout] 522 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:548:9
[INFO] [stdout]     |
[INFO] [stdout] 548 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:549:9
[INFO] [stdout]     |
[INFO] [stdout] 549 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:550:9
[INFO] [stdout]     |
[INFO] [stdout] 550 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:574:9
[INFO] [stdout]     |
[INFO] [stdout] 574 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:575:9
[INFO] [stdout]     |
[INFO] [stdout] 575 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:576:9
[INFO] [stdout]     |
[INFO] [stdout] 576 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:580:17
[INFO] [stdout]     |
[INFO] [stdout] 580 |             let mut server = api.get_mut_server(server_id).unwrap();
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:585:25
[INFO] [stdout]     |
[INFO] [stdout] 585 |                     let mut channel = server.get_mut_channel(channel_id).unwrap();
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:611:9
[INFO] [stdout]     |
[INFO] [stdout] 611 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:612:9
[INFO] [stdout]     |
[INFO] [stdout] 612 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:613:9
[INFO] [stdout]     |
[INFO] [stdout] 613 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:633:9
[INFO] [stdout]     |
[INFO] [stdout] 633 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:634:9
[INFO] [stdout]     |
[INFO] [stdout] 634 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:635:9
[INFO] [stdout]     |
[INFO] [stdout] 635 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:664:9
[INFO] [stdout]     |
[INFO] [stdout] 664 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:665:9
[INFO] [stdout]     |
[INFO] [stdout] 665 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 666 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:701:9
[INFO] [stdout]     |
[INFO] [stdout] 701 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:702:9
[INFO] [stdout]     |
[INFO] [stdout] 702 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:703:9
[INFO] [stdout]     |
[INFO] [stdout] 703 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:732:9
[INFO] [stdout]     |
[INFO] [stdout] 732 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:733:9
[INFO] [stdout]     |
[INFO] [stdout] 733 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:734:9
[INFO] [stdout]     |
[INFO] [stdout] 734 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:768:9
[INFO] [stdout]     |
[INFO] [stdout] 768 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:770:9
[INFO] [stdout]     |
[INFO] [stdout] 770 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:797:9
[INFO] [stdout]     |
[INFO] [stdout] 797 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:798:9
[INFO] [stdout]     |
[INFO] [stdout] 798 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:799:9
[INFO] [stdout]     |
[INFO] [stdout] 799 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:817:9
[INFO] [stdout]     |
[INFO] [stdout] 817 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:818:9
[INFO] [stdout]     |
[INFO] [stdout] 818 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:819:9
[INFO] [stdout]     |
[INFO] [stdout] 819 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:839:9
[INFO] [stdout]     |
[INFO] [stdout] 839 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:840:9
[INFO] [stdout]     |
[INFO] [stdout] 840 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:841:9
[INFO] [stdout]     |
[INFO] [stdout] 841 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:860:9
[INFO] [stdout]     |
[INFO] [stdout] 860 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:861:9
[INFO] [stdout]     |
[INFO] [stdout] 861 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:862:9
[INFO] [stdout]     |
[INFO] [stdout] 862 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:888:9
[INFO] [stdout]     |
[INFO] [stdout] 888 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:889:9
[INFO] [stdout]     |
[INFO] [stdout] 889 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:890:9
[INFO] [stdout]     |
[INFO] [stdout] 890 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:916:9
[INFO] [stdout]     |
[INFO] [stdout] 916 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:917:9
[INFO] [stdout]     |
[INFO] [stdout] 917 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:918:9
[INFO] [stdout]     |
[INFO] [stdout] 918 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:937:9
[INFO] [stdout]     |
[INFO] [stdout] 937 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:938:9
[INFO] [stdout]     |
[INFO] [stdout] 938 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:939:9
[INFO] [stdout]     |
[INFO] [stdout] 939 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:955:9
[INFO] [stdout]     |
[INFO] [stdout] 955 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:958:9
[INFO] [stdout]     |
[INFO] [stdout] 958 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:959:9
[INFO] [stdout]     |
[INFO] [stdout] 959 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:960:9
[INFO] [stdout]     |
[INFO] [stdout] 960 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:972:9
[INFO] [stdout]     |
[INFO] [stdout] 972 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:978:9
[INFO] [stdout]     |
[INFO] [stdout] 978 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:979:9
[INFO] [stdout]     |
[INFO] [stdout] 979 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:980:9
[INFO] [stdout]     |
[INFO] [stdout] 980 |     let mut plugin = &mut data.1;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:992:9
[INFO] [stdout]     |
[INFO] [stdout] 992 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:998:9
[INFO] [stdout]     |
[INFO] [stdout] 998 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ts3interface.rs:999:9
[INFO] [stdout]     |
[INFO] [stdout] 999 |     let mut api = &mut data.0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1000:9
[INFO] [stdout]      |
[INFO] [stdout] 1000 |     let mut plugin = &mut data.1;
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1011:9
[INFO] [stdout]      |
[INFO] [stdout] 1011 |     let mut samples = slice::from_raw_parts_mut(samples, (sample_count * channels) as usize);
[INFO] [stdout]      |         ----^^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1015:9
[INFO] [stdout]      |
[INFO] [stdout] 1015 |     let mut data = data.0.as_mut().unwrap();
[INFO] [stdout]      |         ----^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1016:9
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     let mut api = &mut data.0;
[INFO] [stdout]      |         ----^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/ts3interface.rs:1017:9
[INFO] [stdout]      |
[INFO] [stdout] 1017 |     let mut plugin = &mut data.1;
[INFO] [stdout]      |         ----^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 121 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.37s
[INFO] running `Command { std: "docker" "inspect" "8883ad81210b28c41da563ba0cfcb4b4baddfa9dbc3eb7d1e8e041351d4df97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8883ad81210b28c41da563ba0cfcb4b4baddfa9dbc3eb7d1e8e041351d4df97b", kill_on_drop: false }`
[INFO] [stdout] 8883ad81210b28c41da563ba0cfcb4b4baddfa9dbc3eb7d1e8e041351d4df97b
