[INFO] updating cached repository aliencode-github/alienchat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aliencode-github/alienchat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aliencode-github/alienchat" "work/ex/clippy-test-run/sources/stable/gh/aliencode-github/alienchat"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/aliencode-github/alienchat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aliencode-github/alienchat" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/aliencode-github/alienchat"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/aliencode-github/alienchat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 80045f1f2b8ae19f9d41ae069d24a738cebbb849
[INFO] sha for GitHub repo aliencode-github/alienchat: 80045f1f2b8ae19f9d41ae069d24a738cebbb849
[INFO] validating manifest of aliencode-github/alienchat on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aliencode-github/alienchat on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aliencode-github/alienchat
[INFO] finished frobbing aliencode-github/alienchat
[INFO] frobbed toml for aliencode-github/alienchat written to work/ex/clippy-test-run/sources/stable/gh/aliencode-github/alienchat/Cargo.toml
[INFO] started frobbing aliencode-github/alienchat
[INFO] finished frobbing aliencode-github/alienchat
[INFO] frobbed toml for aliencode-github/alienchat written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/aliencode-github/alienchat/Cargo.toml
[INFO] crate aliencode-github/alienchat has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting aliencode-github/alienchat against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/aliencode-github/alienchat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ed13ced1d8acfa216d97b2c63103a56998187379e08a6df48c7f701c0b6bc08d
[INFO] running `"docker" "start" "-a" "ed13ced1d8acfa216d97b2c63103a56998187379e08a6df48c7f701c0b6bc08d"`
[INFO] [stderr]    Compiling openssl v0.10.7
[INFO] [stderr]     Checking num-traits v0.2.3
[INFO] [stderr]    Compiling actix-web v0.6.3
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]     Checking uuid v0.6.3
[INFO] [stderr]     Checking crossbeam-epoch v0.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
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[INFO] [stderr]     Checking h2 v0.1.6
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.53
[INFO] [stderr]     Checking serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling backtrace v0.3.7
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking num-integer v0.1.37
[INFO] [stderr]     Checking crossbeam-channel v0.1.2
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]     Checking trust-dns-proto v0.3.3
[INFO] [stderr]     Checking tokio-signal v0.1.5
[INFO] [stderr]     Checking tokio-openssl v0.2.0
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]     Checking trust-dns-resolver v0.8.2
[INFO] [stderr]     Checking cookie v0.10.1
[INFO] [stderr]    Compiling actix v0.5.6
[INFO] [stderr]     Checking alienchat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/actors/chatserver.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             rooms: rooms,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `rooms`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/actors/websocket.rs:103:21
[INFO] [stderr]     |
[INFO] [stderr] 103 |                     msg: msg,
[INFO] [stderr]     |                     ^^^^^^^^ help: replace it with: `msg`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/actors/chatserver.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             rooms: rooms,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `rooms`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/actors/websocket.rs:103:21
[INFO] [stderr]     |
[INFO] [stderr] 103 |                     msg: msg,
[INFO] [stderr]     |                     ^^^^^^^^ help: replace it with: `msg`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `SessionMessage` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `Connect` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `Disconnect` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `Message` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Error`
[INFO] [stderr]  --> src/controller.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Formatter`
[INFO] [stderr]  --> src/controller.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fmt::Formatter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:179:36
[INFO] [stderr]     |
[INFO] [stderr] 179 |                         Some(t) => return t.remove_member(user_id),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `t.remove_member(user_id)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:183:21
[INFO] [stderr]     |
[INFO] [stderr] 183 | /                     return match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 184 | |                         Some(t) => t.remove_member(user_id),
[INFO] [stderr] 185 | |                         None => false,
[INFO] [stderr] 186 | |                     };
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 183 |                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 184 |                         Some(t) => t.remove_member(user_id),
[INFO] [stderr] 185 |                         None => false,
[INFO] [stderr] 186 |                     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:273:36
[INFO] [stderr]     |
[INFO] [stderr] 273 |                         Some(t) => return t.unbann_member(user_id),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `t.unbann_member(user_id)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:277:21
[INFO] [stderr]     |
[INFO] [stderr] 277 | /                     return match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 278 | |                         Some(t) => t.unbann_member(user_id),
[INFO] [stderr] 279 | |                         None => false,
[INFO] [stderr] 280 | |                     };
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 277 |                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 278 |                         Some(t) => t.unbann_member(user_id),
[INFO] [stderr] 279 |                         None => false,
[INFO] [stderr] 280 |                     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:311:36
[INFO] [stderr]     |
[INFO] [stderr] 311 |                         Some(t) => return t.unmute_member(user_id),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `t.unmute_member(user_id)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 | /                     return match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 316 | |                         Some(t) => t.unmute_member(user_id),
[INFO] [stderr] 317 | |                         None => false,
[INFO] [stderr] 318 | |                     };
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 316 |                         Some(t) => t.unmute_member(user_id),
[INFO] [stderr] 317 |                         None => false,
[INFO] [stderr] 318 |                     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:329:21
[INFO] [stderr]     |
[INFO] [stderr] 329 |                     return self.public_rooms.get(counter);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.public_rooms.get(counter)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:331:21
[INFO] [stderr]     |
[INFO] [stderr] 331 |                     return self.private_rooms.get(counter);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.private_rooms.get(counter)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json`
[INFO] [stderr]  --> src/user.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use serde_json;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `SessionMessage` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `Connect` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `Disconnect` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot find type `Message` in this scope
[INFO] [stderr]   --> src/actors/chatserver.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 | #[derive(Message)]
[INFO] [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Error`
[INFO] [stderr]  --> src/controller.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Formatter`
[INFO] [stderr]  --> src/controller.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fmt::Formatter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:179:36
[INFO] [stderr]     |
[INFO] [stderr] 179 |                         Some(t) => return t.remove_member(user_id),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `t.remove_member(user_id)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:183:21
[INFO] [stderr]     |
[INFO] [stderr] 183 | /                     return match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 184 | |                         Some(t) => t.remove_member(user_id),
[INFO] [stderr] 185 | |                         None => false,
[INFO] [stderr] 186 | |                     };
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 183 |                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 184 |                         Some(t) => t.remove_member(user_id),
[INFO] [stderr] 185 |                         None => false,
[INFO] [stderr] 186 |                     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:273:36
[INFO] [stderr]     |
[INFO] [stderr] 273 |                         Some(t) => return t.unbann_member(user_id),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `t.unbann_member(user_id)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:277:21
[INFO] [stderr]     |
[INFO] [stderr] 277 | /                     return match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 278 | |                         Some(t) => t.unbann_member(user_id),
[INFO] [stderr] 279 | |                         None => false,
[INFO] [stderr] 280 | |                     };
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 277 |                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 278 |                         Some(t) => t.unbann_member(user_id),
[INFO] [stderr] 279 |                         None => false,
[INFO] [stderr] 280 |                     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:311:36
[INFO] [stderr]     |
[INFO] [stderr] 311 |                         Some(t) => return t.unmute_member(user_id),
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `t.unmute_member(user_id)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 | /                     return match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 316 | |                         Some(t) => t.unmute_member(user_id),
[INFO] [stderr] 317 | |                         None => false,
[INFO] [stderr] 318 | |                     };
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 316 |                         Some(t) => t.unmute_member(user_id),
[INFO] [stderr] 317 |                         None => false,
[INFO] [stderr] 318 |                     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:329:21
[INFO] [stderr]     |
[INFO] [stderr] 329 |                     return self.public_rooms.get(counter);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.public_rooms.get(counter)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/controller.rs:331:21
[INFO] [stderr]     |
[INFO] [stderr] 331 |                     return self.private_rooms.get(counter);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.private_rooms.get(counter)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `role`
[INFO] [stderr]   --> src/user.rs:55:35
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn revoke_role(&mut self, role: &Role) {
[INFO] [stderr]    |                                   ^^^^ help: consider using `_role` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/controller.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut room_data = self.room_data_interface.provide_room_data();
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:116:13
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let mut room = Room::new(name, owner);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `role`
[INFO] [stderr]   --> src/user.rs:55:35
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn revoke_role(&mut self, role: &Role) {
[INFO] [stderr]    |                                   ^^^^ help: consider using `_role` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/controller.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut room_data = self.room_data_interface.provide_room_data();
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:116:13
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let mut room = Room::new(name, owner);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:392:9
[INFO] [stderr]     |
[INFO] [stderr] 392 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:420:9
[INFO] [stderr]     |
[INFO] [stderr] 420 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:454:9
[INFO] [stderr]     |
[INFO] [stderr] 454 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:486:9
[INFO] [stderr]     |
[INFO] [stderr] 486 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:526:9
[INFO] [stderr]     |
[INFO] [stderr] 526 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/controller.rs:567:9
[INFO] [stderr]     |
[INFO] [stderr] 567 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MockUserDataImpl`
[INFO] [stderr]  --> src/mock_data.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct MockUserDataImpl {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/mock_data.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> MockUserDataImpl {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MockRoomDataImpl`
[INFO] [stderr]   --> src/mock_data.rs:83:1
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub struct MockRoomDataImpl {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/mock_data.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn new(user_list: &Vec<User>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/controller.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 | /         match self.find_user(user_id) {
[INFO] [stderr] 93 | |             Some(mut user) => user.grant_role(role),
[INFO] [stderr] 94 | |             None => (),
[INFO] [stderr] 95 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(mut user) = self.find_user(user_id) { user.grant_role(role) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:99:9
[INFO] [stderr]     |
[INFO] [stderr] 99  | /         match self.find_user(user_id) {
[INFO] [stderr] 100 | |             Some(mut user) => user.revoke_role(role),
[INFO] [stderr] 101 | |             None => (),
[INFO] [stderr] 102 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(mut user) = self.find_user(user_id) { user.revoke_role(role) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 | /         match self.find_user(user_id) {
[INFO] [stderr] 108 | |             Some(mut user) => user.update_state(state),
[INFO] [stderr] 109 | |             None => (),
[INFO] [stderr] 110 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(mut user) = self.find_user(user_id) { user.update_state(state) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/room.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 |     let mut room = Room::new("Testroom".to_string(), user.copy_id());
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 157 | |             Some((counter, room_public)) => {
[INFO] [stderr] 158 | |                 if room_public {
[INFO] [stderr] 159 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 170 | |             None => (),
[INFO] [stderr] 171 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 156 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 157 |     if room_public {
[INFO] [stderr] 158 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 159 |             Some(t) => t.add_member(user_id),
[INFO] [stderr] 160 |             None => (),
[INFO] [stderr] 161 |         }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:159:21
[INFO] [stderr]     |
[INFO] [stderr] 159 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 160 | |                         Some(t) => t.add_member(user_id),
[INFO] [stderr] 161 | |                         None => (),
[INFO] [stderr] 162 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.public_rooms.get_mut(counter) { t.add_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:164:21
[INFO] [stderr]     |
[INFO] [stderr] 164 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 165 | |                         Some(t) => t.add_member(user_id),
[INFO] [stderr] 166 | |                         None => (),
[INFO] [stderr] 167 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.private_rooms.get_mut(counter) { t.add_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 194 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 195 | |             Some((counter, room_public)) => {
[INFO] [stderr] 196 | |                 if room_public {
[INFO] [stderr] 197 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 218 | |             None => (),
[INFO] [stderr] 219 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 194 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 195 |     if room_public {
[INFO] [stderr] 196 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 197 |             Some(t) => {
[INFO] [stderr] 198 |                 t.add_moderator(user_id);
[INFO] [stderr] 199 |                 if !t.has_member(&user_id) {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:197:21
[INFO] [stderr]     |
[INFO] [stderr] 197 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 198 | |                         Some(t) => {
[INFO] [stderr] 199 | |                             t.add_moderator(user_id);
[INFO] [stderr] 200 | |                             if !t.has_member(&user_id) {
[INFO] [stderr] ...   |
[INFO] [stderr] 204 | |                         None => (),
[INFO] [stderr] 205 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 197 |                     if let Some(t) = self.public_rooms.get_mut(counter) {
[INFO] [stderr] 198 |     t.add_moderator(user_id);
[INFO] [stderr] 199 |     if !t.has_member(&user_id) {
[INFO] [stderr] 200 |         t.add_member(user_id);
[INFO] [stderr] 201 |     }
[INFO] [stderr] 202 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:207:21
[INFO] [stderr]     |
[INFO] [stderr] 207 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 208 | |                         Some(t) => {
[INFO] [stderr] 209 | |                             t.add_moderator(user_id);
[INFO] [stderr] 210 | |                             if !t.has_member(&user_id) {
[INFO] [stderr] ...   |
[INFO] [stderr] 214 | |                         None => (),
[INFO] [stderr] 215 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 207 |                     if let Some(t) = self.private_rooms.get_mut(counter) {
[INFO] [stderr] 208 |     t.add_moderator(user_id);
[INFO] [stderr] 209 |     if !t.has_member(&user_id) {
[INFO] [stderr] 210 |         t.add_member(user_id);
[INFO] [stderr] 211 |     }
[INFO] [stderr] 212 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:242:9
[INFO] [stderr]     |
[INFO] [stderr] 242 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 243 | |             Some((counter, room_public)) => {
[INFO] [stderr] 244 | |                 if room_public {
[INFO] [stderr] 245 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 264 | |             None => (),
[INFO] [stderr] 265 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 242 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 243 |     if room_public {
[INFO] [stderr] 244 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 245 |             Some(t) => {
[INFO] [stderr] 246 |                 t.bann_member(user_id);
[INFO] [stderr] 247 |                 t.remove_member(&user_id);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:245:21
[INFO] [stderr]     |
[INFO] [stderr] 245 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 246 | |                         Some(t) => {
[INFO] [stderr] 247 | |                             t.bann_member(user_id);
[INFO] [stderr] 248 | |                             t.remove_member(&user_id);
[INFO] [stderr] ...   |
[INFO] [stderr] 251 | |                         None => (),
[INFO] [stderr] 252 | |                     };
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     if let Some(t) = self.public_rooms.get_mut(counter) {
[INFO] [stderr] 246 |     t.bann_member(user_id);
[INFO] [stderr] 247 |     t.remove_member(&user_id);
[INFO] [stderr] 248 |     t.remove_moderator(&user_id);
[INFO] [stderr] 249 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 255 | |                         Some(t) => {
[INFO] [stderr] 256 | |                             t.bann_member(user_id);
[INFO] [stderr] 257 | |                             t.remove_member(&user_id);
[INFO] [stderr] ...   |
[INFO] [stderr] 260 | |                         None => (),
[INFO] [stderr] 261 | |                     };
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 254 |                     if let Some(t) = self.private_rooms.get_mut(counter) {
[INFO] [stderr] 255 |     t.bann_member(user_id);
[INFO] [stderr] 256 |     t.remove_member(&user_id);
[INFO] [stderr] 257 |     t.remove_moderator(&user_id);
[INFO] [stderr] 258 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 289 | |             Some((counter, room_public)) => {
[INFO] [stderr] 290 | |                 if room_public {
[INFO] [stderr] 291 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 302 | |             None => (),
[INFO] [stderr] 303 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 288 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 289 |     if room_public {
[INFO] [stderr] 290 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 291 |             Some(t) => t.mute_member(user_id),
[INFO] [stderr] 292 |             None => (),
[INFO] [stderr] 293 |         }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:291:21
[INFO] [stderr]     |
[INFO] [stderr] 291 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 292 | |                         Some(t) => t.mute_member(user_id),
[INFO] [stderr] 293 | |                         None => (),
[INFO] [stderr] 294 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.public_rooms.get_mut(counter) { t.mute_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:296:21
[INFO] [stderr]     |
[INFO] [stderr] 296 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 297 | |                         Some(t) => t.mute_member(user_id),
[INFO] [stderr] 298 | |                         None => (),
[INFO] [stderr] 299 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.private_rooms.get_mut(counter) { t.mute_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/mock_data.rs:88:27
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn new(user_list: &Vec<User>) -> Self {
[INFO] [stderr]    |                           ^^^^^^^^^^ help: change this to: `&[User]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/mock_data.rs:93:21
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     user_list.get(0).unwrap().copy_id(),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&user_list[0]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/mock_data.rs:97:21
[INFO] [stderr]    |
[INFO] [stderr] 97 |                     user_list.get(1).unwrap().copy_id(),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&user_list[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/user.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let mut user = User::new(
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/controller.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 | /         match self.find_user(user_id) {
[INFO] [stderr] 93 | |             Some(mut user) => user.grant_role(role),
[INFO] [stderr] 94 | |             None => (),
[INFO] [stderr] 95 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(mut user) = self.find_user(user_id) { user.grant_role(role) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:99:9
[INFO] [stderr]     |
[INFO] [stderr] 99  | /         match self.find_user(user_id) {
[INFO] [stderr] 100 | |             Some(mut user) => user.revoke_role(role),
[INFO] [stderr] 101 | |             None => (),
[INFO] [stderr] 102 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(mut user) = self.find_user(user_id) { user.revoke_role(role) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 | /         match self.find_user(user_id) {
[INFO] [stderr] 108 | |             Some(mut user) => user.update_state(state),
[INFO] [stderr] 109 | |             None => (),
[INFO] [stderr] 110 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(mut user) = self.find_user(user_id) { user.update_state(state) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 157 | |             Some((counter, room_public)) => {
[INFO] [stderr] 158 | |                 if room_public {
[INFO] [stderr] 159 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 170 | |             None => (),
[INFO] [stderr] 171 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 156 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 157 |     if room_public {
[INFO] [stderr] 158 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 159 |             Some(t) => t.add_member(user_id),
[INFO] [stderr] 160 |             None => (),
[INFO] [stderr] 161 |         }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:159:21
[INFO] [stderr]     |
[INFO] [stderr] 159 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 160 | |                         Some(t) => t.add_member(user_id),
[INFO] [stderr] 161 | |                         None => (),
[INFO] [stderr] 162 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.public_rooms.get_mut(counter) { t.add_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:164:21
[INFO] [stderr]     |
[INFO] [stderr] 164 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 165 | |                         Some(t) => t.add_member(user_id),
[INFO] [stderr] 166 | |                         None => (),
[INFO] [stderr] 167 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.private_rooms.get_mut(counter) { t.add_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 194 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 195 | |             Some((counter, room_public)) => {
[INFO] [stderr] 196 | |                 if room_public {
[INFO] [stderr] 197 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 218 | |             None => (),
[INFO] [stderr] 219 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 194 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 195 |     if room_public {
[INFO] [stderr] 196 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 197 |             Some(t) => {
[INFO] [stderr] 198 |                 t.add_moderator(user_id);
[INFO] [stderr] 199 |                 if !t.has_member(&user_id) {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:197:21
[INFO] [stderr]     |
[INFO] [stderr] 197 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 198 | |                         Some(t) => {
[INFO] [stderr] 199 | |                             t.add_moderator(user_id);
[INFO] [stderr] 200 | |                             if !t.has_member(&user_id) {
[INFO] [stderr] ...   |
[INFO] [stderr] 204 | |                         None => (),
[INFO] [stderr] 205 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 197 |                     if let Some(t) = self.public_rooms.get_mut(counter) {
[INFO] [stderr] 198 |     t.add_moderator(user_id);
[INFO] [stderr] 199 |     if !t.has_member(&user_id) {
[INFO] [stderr] 200 |         t.add_member(user_id);
[INFO] [stderr] 201 |     }
[INFO] [stderr] 202 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:207:21
[INFO] [stderr]     |
[INFO] [stderr] 207 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 208 | |                         Some(t) => {
[INFO] [stderr] 209 | |                             t.add_moderator(user_id);
[INFO] [stderr] 210 | |                             if !t.has_member(&user_id) {
[INFO] [stderr] ...   |
[INFO] [stderr] 214 | |                         None => (),
[INFO] [stderr] 215 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 207 |                     if let Some(t) = self.private_rooms.get_mut(counter) {
[INFO] [stderr] 208 |     t.add_moderator(user_id);
[INFO] [stderr] 209 |     if !t.has_member(&user_id) {
[INFO] [stderr] 210 |         t.add_member(user_id);
[INFO] [stderr] 211 |     }
[INFO] [stderr] 212 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:242:9
[INFO] [stderr]     |
[INFO] [stderr] 242 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 243 | |             Some((counter, room_public)) => {
[INFO] [stderr] 244 | |                 if room_public {
[INFO] [stderr] 245 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 264 | |             None => (),
[INFO] [stderr] 265 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 242 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 243 |     if room_public {
[INFO] [stderr] 244 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 245 |             Some(t) => {
[INFO] [stderr] 246 |                 t.bann_member(user_id);
[INFO] [stderr] 247 |                 t.remove_member(&user_id);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:245:21
[INFO] [stderr]     |
[INFO] [stderr] 245 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 246 | |                         Some(t) => {
[INFO] [stderr] 247 | |                             t.bann_member(user_id);
[INFO] [stderr] 248 | |                             t.remove_member(&user_id);
[INFO] [stderr] ...   |
[INFO] [stderr] 251 | |                         None => (),
[INFO] [stderr] 252 | |                     };
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     if let Some(t) = self.public_rooms.get_mut(counter) {
[INFO] [stderr] 246 |     t.bann_member(user_id);
[INFO] [stderr] 247 |     t.remove_member(&user_id);
[INFO] [stderr] 248 |     t.remove_moderator(&user_id);
[INFO] [stderr] 249 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 255 | |                         Some(t) => {
[INFO] [stderr] 256 | |                             t.bann_member(user_id);
[INFO] [stderr] 257 | |                             t.remove_member(&user_id);
[INFO] [stderr] ...   |
[INFO] [stderr] 260 | |                         None => (),
[INFO] [stderr] 261 | |                     };
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 254 |                     if let Some(t) = self.private_rooms.get_mut(counter) {
[INFO] [stderr] 255 |     t.bann_member(user_id);
[INFO] [stderr] 256 |     t.remove_member(&user_id);
[INFO] [stderr] 257 |     t.remove_moderator(&user_id);
[INFO] [stderr] 258 | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 | /         match self.find_room_match(room_id) {
[INFO] [stderr] 289 | |             Some((counter, room_public)) => {
[INFO] [stderr] 290 | |                 if room_public {
[INFO] [stderr] 291 | |                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] ...   |
[INFO] [stderr] 302 | |             None => (),
[INFO] [stderr] 303 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 288 |         if let Some((counter, room_public)) = self.find_room_match(room_id) {
[INFO] [stderr] 289 |     if room_public {
[INFO] [stderr] 290 |         match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 291 |             Some(t) => t.mute_member(user_id),
[INFO] [stderr] 292 |             None => (),
[INFO] [stderr] 293 |         }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:291:21
[INFO] [stderr]     |
[INFO] [stderr] 291 | /                     match self.public_rooms.get_mut(counter) {
[INFO] [stderr] 292 | |                         Some(t) => t.mute_member(user_id),
[INFO] [stderr] 293 | |                         None => (),
[INFO] [stderr] 294 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.public_rooms.get_mut(counter) { t.mute_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/controller.rs:296:21
[INFO] [stderr]     |
[INFO] [stderr] 296 | /                     match self.private_rooms.get_mut(counter) {
[INFO] [stderr] 297 | |                         Some(t) => t.mute_member(user_id),
[INFO] [stderr] 298 | |                         None => (),
[INFO] [stderr] 299 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(t) = self.private_rooms.get_mut(counter) { t.mute_member(user_id) }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/controller.rs:396:10
[INFO] [stderr]     |
[INFO] [stderr] 396 |         *user_data.get(0).unwrap(),
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&user_data[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/controller.rs:398:24
[INFO] [stderr]     |
[INFO] [stderr] 398 |             .find_user(user_data.get(0).unwrap().get_id())
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&user_data[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/room.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         self.id.clone()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.id`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/mock_data.rs:88:27
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn new(user_list: &Vec<User>) -> Self {
[INFO] [stderr]    |                           ^^^^^^^^^^ help: change this to: `&[User]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/mock_data.rs:93:21
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     user_list.get(0).unwrap().copy_id(),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&user_list[0]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/mock_data.rs:97:21
[INFO] [stderr]    |
[INFO] [stderr] 97 |                     user_list.get(1).unwrap().copy_id(),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&user_list[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/user.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         self.id.clone()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/room.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         self.id.clone()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.id`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/user.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         self.id.clone()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.id`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `"docker" "inspect" "ed13ced1d8acfa216d97b2c63103a56998187379e08a6df48c7f701c0b6bc08d"`
[INFO] running `"docker" "rm" "-f" "ed13ced1d8acfa216d97b2c63103a56998187379e08a6df48c7f701c0b6bc08d"`
[INFO] [stdout] ed13ced1d8acfa216d97b2c63103a56998187379e08a6df48c7f701c0b6bc08d