Nov 30 07:13:00.690 INFO checking aliencode-github/alienchat against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 07:13:00.690 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 07:13:00.965 INFO [stdout] 2731841b3de70abe8dcdca640fc362fa4e888ea0caa8cf3f474df524c3047c69
Nov 30 07:13:00.974 INFO running `"docker" "start" "-a" "2731841b3de70abe8dcdca640fc362fa4e888ea0caa8cf3f474df524c3047c69"`
Nov 30 07:13:01.860 INFO [stderr] usermod: no changes
Nov 30 07:13:02.413 INFO [stderr]    Compiling openssl v0.10.7
Nov 30 07:13:02.413 INFO [stderr]     Checking num-traits v0.2.3
Nov 30 07:13:02.424 INFO [stderr]    Compiling actix-web v0.6.3
Nov 30 07:13:02.424 INFO [stderr]    Compiling semver v0.8.0
Nov 30 07:13:02.424 INFO [stderr]     Checking uuid v0.6.3
Nov 30 07:13:02.424 INFO [stderr]    Compiling backtrace-sys v0.1.16
Nov 30 07:13:02.436 INFO [stderr]     Checking mio-uds v0.6.6
Nov 30 07:13:02.436 INFO [stderr]     Checking flate2 v1.0.1
Nov 30 07:13:04.838 INFO [stderr]     Checking h2 v0.1.6
Nov 30 07:13:04.838 INFO [stderr]     Checking crossbeam-channel v0.1.2
Nov 30 07:13:05.904 INFO [stderr]    Compiling serde_derive v1.0.53
Nov 30 07:13:06.814 INFO [stderr]    Compiling rayon-core v1.4.0
Nov 30 07:13:07.032 INFO [stderr]     Checking backtrace v0.2.3
Nov 30 07:13:10.470 INFO [stderr]     Checking serde_urlencoded v0.5.1
Nov 30 07:13:10.504 INFO [stderr]    Compiling backtrace v0.3.7
Nov 30 07:13:10.654 INFO [stderr]     Checking error-chain v0.1.12
Nov 30 07:13:10.877 INFO [stderr]     Checking num-integer v0.1.37
Nov 30 07:13:13.129 INFO [stderr]     Checking failure v0.1.1
Nov 30 07:13:14.964 INFO [stderr]     Checking chrono v0.4.2
Nov 30 07:13:18.628 INFO [stderr]    Compiling error-chain v0.11.0
Nov 30 07:13:18.641 INFO [stderr]     Checking trust-dns-proto v0.3.3
Nov 30 07:13:18.829 INFO [stderr]     Checking tokio-signal v0.1.5
Nov 30 07:13:19.125 INFO [stderr]    Compiling rayon v0.8.2
Nov 30 07:13:26.281 INFO [stderr]     Checking tokio-openssl v0.2.0
Nov 30 07:13:31.248 INFO [stderr]    Compiling ring v0.12.1
Nov 30 07:13:32.665 INFO [stderr]     Checking trust-dns-resolver v0.8.2
Nov 30 07:13:45.208 INFO [stderr]    Compiling cargo_metadata v0.3.3
Nov 30 07:13:46.144 INFO [stderr]     Checking cookie v0.10.1
Nov 30 07:13:49.904 INFO [stderr]    Compiling skeptic v0.13.2
Nov 30 07:13:55.902 INFO [stderr]    Compiling actix v0.5.6
Nov 30 07:14:17.128 INFO [stderr]     Checking alienchat v0.1.0 (/source)
Nov 30 07:14:24.888 INFO [stderr] warning: cannot find type `SessionMessage` in this scope
Nov 30 07:14:24.888 INFO [stderr]   --> src/actors/chatserver.rs:11:10
Nov 30 07:14:24.888 INFO [stderr]    |
Nov 30 07:14:24.888 INFO [stderr] 11 | #[derive(Message)]
Nov 30 07:14:24.888 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.888 INFO [stderr]    |
Nov 30 07:14:24.888 INFO [stderr]    = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
Nov 30 07:14:24.888 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!
Nov 30 07:14:24.888 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.888 INFO [stderr] 
Nov 30 07:14:24.888 INFO [stderr] warning: cannot find type `Connect` in this scope
Nov 30 07:14:24.888 INFO [stderr]   --> src/actors/chatserver.rs:15:10
Nov 30 07:14:24.888 INFO [stderr]    |
Nov 30 07:14:24.888 INFO [stderr] 15 | #[derive(Message)]
Nov 30 07:14:24.888 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.888 INFO [stderr]    |
Nov 30 07:14:24.888 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!
Nov 30 07:14:24.888 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.888 INFO [stderr] 
Nov 30 07:14:24.888 INFO [stderr] warning: cannot find type `Disconnect` in this scope
Nov 30 07:14:24.888 INFO [stderr]   --> src/actors/chatserver.rs:22:10
Nov 30 07:14:24.888 INFO [stderr]    |
Nov 30 07:14:24.888 INFO [stderr] 22 | #[derive(Message)]
Nov 30 07:14:24.888 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.888 INFO [stderr]    |
Nov 30 07:14:24.888 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!
Nov 30 07:14:24.888 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.888 INFO [stderr] 
Nov 30 07:14:24.889 INFO [stderr] warning: cannot find type `Message` in this scope
Nov 30 07:14:24.889 INFO [stderr]   --> src/actors/chatserver.rs:28:10
Nov 30 07:14:24.889 INFO [stderr]    |
Nov 30 07:14:24.889 INFO [stderr] 28 | #[derive(Message)]
Nov 30 07:14:24.889 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.889 INFO [stderr]    |
Nov 30 07:14:24.889 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!
Nov 30 07:14:24.889 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.889 INFO [stderr] 
Nov 30 07:14:24.889 INFO [stderr] warning: unused import: `std::fmt::Error`
Nov 30 07:14:24.889 INFO [stderr]  --> src/controller.rs:6:5
Nov 30 07:14:24.889 INFO [stderr]   |
Nov 30 07:14:24.889 INFO [stderr] 6 | use std::fmt::Error;
Nov 30 07:14:24.889 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 07:14:24.889 INFO [stderr]   |
Nov 30 07:14:24.889 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 07:14:24.889 INFO [stderr] 
Nov 30 07:14:24.889 INFO [stderr] warning: unused import: `std::fmt::Formatter`
Nov 30 07:14:24.889 INFO [stderr]  --> src/controller.rs:7:5
Nov 30 07:14:24.889 INFO [stderr]   |
Nov 30 07:14:24.889 INFO [stderr] 7 | use std::fmt::Formatter;
Nov 30 07:14:24.889 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:24.889 INFO [stderr] 
Nov 30 07:14:24.889 INFO [stderr] warning: unused import: `serde_json`
Nov 30 07:14:24.889 INFO [stderr]  --> src/user.rs:4:5
Nov 30 07:14:24.889 INFO [stderr]   |
Nov 30 07:14:24.890 INFO [stderr] 4 | use serde_json;
Nov 30 07:14:24.900 INFO [stderr]   |     ^^^^^^^^^^
Nov 30 07:14:24.900 INFO [stderr] 
Nov 30 07:14:24.943 INFO [stderr] warning: cannot find type `SessionMessage` in this scope
Nov 30 07:14:24.943 INFO [stderr]   --> src/actors/chatserver.rs:11:10
Nov 30 07:14:24.943 INFO [stderr]    |
Nov 30 07:14:24.943 INFO [stderr] 11 | #[derive(Message)]
Nov 30 07:14:24.943 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.943 INFO [stderr]    |
Nov 30 07:14:24.943 INFO [stderr]    = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
Nov 30 07:14:24.943 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!
Nov 30 07:14:24.943 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.943 INFO [stderr] 
Nov 30 07:14:24.943 INFO [stderr] warning: cannot find type `Connect` in this scope
Nov 30 07:14:24.948 INFO [stderr]   --> src/actors/chatserver.rs:15:10
Nov 30 07:14:24.948 INFO [stderr]    |
Nov 30 07:14:24.948 INFO [stderr] 15 | #[derive(Message)]
Nov 30 07:14:24.948 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.948 INFO [stderr]    |
Nov 30 07:14:24.948 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!
Nov 30 07:14:24.948 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.948 INFO [stderr] 
Nov 30 07:14:24.948 INFO [stderr] warning: cannot find type `Disconnect` in this scope
Nov 30 07:14:24.948 INFO [stderr]   --> src/actors/chatserver.rs:22:10
Nov 30 07:14:24.948 INFO [stderr]    |
Nov 30 07:14:24.948 INFO [stderr] 22 | #[derive(Message)]
Nov 30 07:14:24.948 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.948 INFO [stderr]    |
Nov 30 07:14:24.948 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!
Nov 30 07:14:24.948 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.948 INFO [stderr] 
Nov 30 07:14:24.948 INFO [stderr] warning: cannot find type `Message` in this scope
Nov 30 07:14:24.948 INFO [stderr]   --> src/actors/chatserver.rs:28:10
Nov 30 07:14:24.948 INFO [stderr]    |
Nov 30 07:14:24.948 INFO [stderr] 28 | #[derive(Message)]
Nov 30 07:14:24.948 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Nov 30 07:14:24.948 INFO [stderr]    |
Nov 30 07:14:24.948 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!
Nov 30 07:14:24.948 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Nov 30 07:14:24.948 INFO [stderr] 
Nov 30 07:14:24.952 INFO [stderr] warning: unused import: `std::fmt::Error`
Nov 30 07:14:24.952 INFO [stderr]  --> src/controller.rs:6:5
Nov 30 07:14:24.952 INFO [stderr]   |
Nov 30 07:14:24.952 INFO [stderr] 6 | use std::fmt::Error;
Nov 30 07:14:24.952 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 07:14:24.952 INFO [stderr]   |
Nov 30 07:14:24.952 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 07:14:24.952 INFO [stderr] 
Nov 30 07:14:24.952 INFO [stderr] warning: unused import: `std::fmt::Formatter`
Nov 30 07:14:24.952 INFO [stderr]  --> src/controller.rs:7:5
Nov 30 07:14:24.952 INFO [stderr]   |
Nov 30 07:14:24.952 INFO [stderr] 7 | use std::fmt::Formatter;
Nov 30 07:14:24.952 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:24.952 INFO [stderr] 
Nov 30 07:14:25.430 INFO [stderr] warning: unused variable: `role`
Nov 30 07:14:25.430 INFO [stderr]   --> src/user.rs:55:35
Nov 30 07:14:25.430 INFO [stderr]    |
Nov 30 07:14:25.430 INFO [stderr] 55 |     pub fn revoke_role(&mut self, role: &Role) {
Nov 30 07:14:25.430 INFO [stderr]    |                                   ^^^^ help: consider using `_role` instead
Nov 30 07:14:25.430 INFO [stderr]    |
Nov 30 07:14:25.430 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 07:14:25.430 INFO [stderr] 
Nov 30 07:14:25.461 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.461 INFO [stderr]   --> src/controller.rs:53:13
Nov 30 07:14:25.461 INFO [stderr]    |
Nov 30 07:14:25.461 INFO [stderr] 53 |         let mut room_data = self.room_data_interface.provide_room_data();
Nov 30 07:14:25.461 INFO [stderr]    |             ----^^^^^^^^^
Nov 30 07:14:25.461 INFO [stderr]    |             |
Nov 30 07:14:25.461 INFO [stderr]    |             help: remove this `mut`
Nov 30 07:14:25.461 INFO [stderr]    |
Nov 30 07:14:25.461 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 07:14:25.461 INFO [stderr] 
Nov 30 07:14:25.465 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.465 INFO [stderr]    --> src/controller.rs:116:13
Nov 30 07:14:25.472 INFO [stderr]     |
Nov 30 07:14:25.472 INFO [stderr] 116 |         let mut room = Room::new(name, owner);
Nov 30 07:14:25.472 INFO [stderr]     |             ----^^^^
Nov 30 07:14:25.472 INFO [stderr]     |             |
Nov 30 07:14:25.472 INFO [stderr]     |             help: remove this `mut`
Nov 30 07:14:25.472 INFO [stderr] 
Nov 30 07:14:25.573 INFO [stderr] warning: unused variable: `role`
Nov 30 07:14:25.573 INFO [stderr]   --> src/user.rs:55:35
Nov 30 07:14:25.573 INFO [stderr]    |
Nov 30 07:14:25.573 INFO [stderr] 55 |     pub fn revoke_role(&mut self, role: &Role) {
Nov 30 07:14:25.573 INFO [stderr]    |                                   ^^^^ help: consider using `_role` instead
Nov 30 07:14:25.573 INFO [stderr]    |
Nov 30 07:14:25.574 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 07:14:25.574 INFO [stderr] 
Nov 30 07:14:25.604 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.604 INFO [stderr]   --> src/controller.rs:53:13
Nov 30 07:14:25.604 INFO [stderr]    |
Nov 30 07:14:25.604 INFO [stderr] 53 |         let mut room_data = self.room_data_interface.provide_room_data();
Nov 30 07:14:25.604 INFO [stderr]    |             ----^^^^^^^^^
Nov 30 07:14:25.604 INFO [stderr]    |             |
Nov 30 07:14:25.604 INFO [stderr]    |             help: remove this `mut`
Nov 30 07:14:25.604 INFO [stderr]    |
Nov 30 07:14:25.604 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 07:14:25.604 INFO [stderr] 
Nov 30 07:14:25.608 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.608 INFO [stderr]    --> src/controller.rs:116:13
Nov 30 07:14:25.608 INFO [stderr]     |
Nov 30 07:14:25.608 INFO [stderr] 116 |         let mut room = Room::new(name, owner);
Nov 30 07:14:25.608 INFO [stderr]     |             ----^^^^
Nov 30 07:14:25.608 INFO [stderr]     |             |
Nov 30 07:14:25.608 INFO [stderr]     |             help: remove this `mut`
Nov 30 07:14:25.608 INFO [stderr] 
Nov 30 07:14:25.624 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.624 INFO [stderr]    --> src/controller.rs:392:9
Nov 30 07:14:25.624 INFO [stderr]     |
Nov 30 07:14:25.624 INFO [stderr] 392 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Nov 30 07:14:25.624 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.624 INFO [stderr]     |         |
Nov 30 07:14:25.624 INFO [stderr]     |         help: remove this `mut`
Nov 30 07:14:25.626 INFO [stderr] 
Nov 30 07:14:25.627 INFO [stderr] warning: struct is never constructed: `MockUserDataImpl`
Nov 30 07:14:25.627 INFO [stderr]  --> src/mock_data.rs:8:1
Nov 30 07:14:25.627 INFO [stderr]   |
Nov 30 07:14:25.627 INFO [stderr] 8 | pub struct MockUserDataImpl {
Nov 30 07:14:25.627 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.627 INFO [stderr]   |
Nov 30 07:14:25.627 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 07:14:25.627 INFO [stderr] 
Nov 30 07:14:25.627 INFO [stderr] warning: method is never used: `new`
Nov 30 07:14:25.627 INFO [stderr]   --> src/mock_data.rs:13:5
Nov 30 07:14:25.627 INFO [stderr]    |
Nov 30 07:14:25.627 INFO [stderr] 13 |     pub fn new() -> MockUserDataImpl {
Nov 30 07:14:25.627 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.627 INFO [stderr] 
Nov 30 07:14:25.627 INFO [stderr] warning: struct is never constructed: `MockRoomDataImpl`
Nov 30 07:14:25.627 INFO [stderr]   --> src/mock_data.rs:83:1
Nov 30 07:14:25.627 INFO [stderr]    |
Nov 30 07:14:25.627 INFO [stderr] 83 | pub struct MockRoomDataImpl {
Nov 30 07:14:25.627 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.627 INFO [stderr] 
Nov 30 07:14:25.627 INFO [stderr] warning: method is never used: `new`
Nov 30 07:14:25.627 INFO [stderr]   --> src/mock_data.rs:88:5
Nov 30 07:14:25.627 INFO [stderr]    |
Nov 30 07:14:25.627 INFO [stderr] 88 |     pub fn new(user_list: &Vec<User>) -> Self {
Nov 30 07:14:25.627 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.627 INFO [stderr] 
Nov 30 07:14:25.634 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.634 INFO [stderr]    --> src/controller.rs:420:9
Nov 30 07:14:25.634 INFO [stderr]     |
Nov 30 07:14:25.634 INFO [stderr] 420 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Nov 30 07:14:25.634 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.634 INFO [stderr]     |         |
Nov 30 07:14:25.634 INFO [stderr]     |         help: remove this `mut`
Nov 30 07:14:25.634 INFO [stderr] 
Nov 30 07:14:25.634 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.634 INFO [stderr]    --> src/controller.rs:454:9
Nov 30 07:14:25.634 INFO [stderr]     |
Nov 30 07:14:25.634 INFO [stderr] 454 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Nov 30 07:14:25.634 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.634 INFO [stderr]     |         |
Nov 30 07:14:25.634 INFO [stderr]     |         help: remove this `mut`
Nov 30 07:14:25.634 INFO [stderr] 
Nov 30 07:14:25.634 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.634 INFO [stderr]    --> src/controller.rs:486:9
Nov 30 07:14:25.634 INFO [stderr]     |
Nov 30 07:14:25.634 INFO [stderr] 486 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Nov 30 07:14:25.634 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.634 INFO [stderr]     |         |
Nov 30 07:14:25.634 INFO [stderr]     |         help: remove this `mut`
Nov 30 07:14:25.634 INFO [stderr] 
Nov 30 07:14:25.640 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.640 INFO [stderr]    --> src/controller.rs:526:9
Nov 30 07:14:25.640 INFO [stderr]     |
Nov 30 07:14:25.640 INFO [stderr] 526 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Nov 30 07:14:25.640 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.640 INFO [stderr]     |         |
Nov 30 07:14:25.640 INFO [stderr]     |         help: remove this `mut`
Nov 30 07:14:25.640 INFO [stderr] 
Nov 30 07:14:25.640 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.640 INFO [stderr]    --> src/controller.rs:567:9
Nov 30 07:14:25.640 INFO [stderr]     |
Nov 30 07:14:25.640 INFO [stderr] 567 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Nov 30 07:14:25.640 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Nov 30 07:14:25.640 INFO [stderr]     |         |
Nov 30 07:14:25.640 INFO [stderr]     |         help: remove this `mut`
Nov 30 07:14:25.640 INFO [stderr] 
Nov 30 07:14:25.736 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.736 INFO [stderr]    --> src/room.rs:160:9
Nov 30 07:14:25.736 INFO [stderr]     |
Nov 30 07:14:25.736 INFO [stderr] 160 |     let mut room = Room::new("Testroom".to_string(), user.copy_id());
Nov 30 07:14:25.736 INFO [stderr]     |         ----^^^^
Nov 30 07:14:25.736 INFO [stderr]     |         |
Nov 30 07:14:25.736 INFO [stderr]     |         help: remove this `mut`
Nov 30 07:14:25.736 INFO [stderr] 
Nov 30 07:14:25.764 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:14:25.764 INFO [stderr]   --> src/user.rs:96:9
Nov 30 07:14:25.764 INFO [stderr]    |
Nov 30 07:14:25.764 INFO [stderr] 96 |     let mut user = User::new(
Nov 30 07:14:25.764 INFO [stderr]    |         ----^^^^
Nov 30 07:14:25.764 INFO [stderr]    |         |
Nov 30 07:14:25.764 INFO [stderr]    |         help: remove this `mut`
Nov 30 07:14:25.764 INFO [stderr] 
Nov 30 07:14:25.808 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
Nov 30 07:14:25.824 INFO [stderr] su: No module specific data is present
Nov 30 07:14:26.163 INFO running `"docker" "inspect" "2731841b3de70abe8dcdca640fc362fa4e888ea0caa8cf3f474df524c3047c69"`
Nov 30 07:14:26.360 INFO running `"docker" "rm" "-f" "2731841b3de70abe8dcdca640fc362fa4e888ea0caa8cf3f474df524c3047c69"`
Nov 30 07:14:26.650 INFO [stdout] 2731841b3de70abe8dcdca640fc362fa4e888ea0caa8cf3f474df524c3047c69