Dec 11 22:47:09.402 INFO checking aliencode-github/alienchat against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 22:47:09.402 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 22:47:09.918 INFO [stdout] 6364645d7b470791d6a1d27213d9fbe12881cef979d546d3f94cea180d122e70
Dec 11 22:47:09.920 INFO running `"docker" "start" "-a" "6364645d7b470791d6a1d27213d9fbe12881cef979d546d3f94cea180d122e70"`
Dec 11 22:47:11.956 INFO [stderr] usermod: no changes
Dec 11 22:47:12.534 INFO [stderr]    Compiling serde v1.0.53
Dec 11 22:47:12.534 INFO [stderr]    Compiling openssl v0.10.7
Dec 11 22:47:12.547 INFO [stderr]     Checking num-traits v0.2.3
Dec 11 22:47:12.552 INFO [stderr]    Compiling actix-web v0.6.3
Dec 11 22:47:12.552 INFO [stderr]     Checking crossbeam-epoch v0.2.0
Dec 11 22:47:12.552 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 11 22:47:12.552 INFO [stderr]     Checking brotli-sys v0.3.2
Dec 11 22:47:14.646 INFO [stderr]     Checking http v0.1.5
Dec 11 22:47:14.860 INFO [stderr]     Checking mio-uds v0.6.6
Dec 11 22:47:16.288 INFO [stderr]     Checking parking_lot v0.4.8
Dec 11 22:47:16.911 INFO [stderr]    Compiling backtrace v0.3.7
Dec 11 22:47:17.108 INFO [stderr]     Checking flate2 v1.0.1
Dec 11 22:47:20.660 INFO [stderr]     Checking brotli2 v0.3.2
Dec 11 22:47:21.260 INFO [stderr]    Compiling serde_derive v1.0.53
Dec 11 22:47:21.456 INFO [stderr]    Compiling rayon-core v1.4.0
Dec 11 22:47:23.864 INFO [stderr]     Checking num-integer v0.1.37
Dec 11 22:47:23.928 INFO [stderr]     Checking crossbeam-channel v0.1.2
Dec 11 22:47:24.037 INFO [stderr]     Checking error-chain v0.1.12
Dec 11 22:47:25.484 INFO [stderr]     Checking failure v0.1.1
Dec 11 22:47:27.516 INFO [stderr]    Compiling error-chain v0.11.0
Dec 11 22:47:28.528 INFO [stderr]     Checking trust-dns-proto v0.3.3
Dec 11 22:47:31.364 INFO [stderr]     Checking tokio-signal v0.1.5
Dec 11 22:47:34.468 INFO [stderr]     Checking h2 v0.1.6
Dec 11 22:47:34.616 INFO [stderr]    Compiling rayon v0.8.2
Dec 11 22:47:48.968 INFO [stderr]     Checking tokio-openssl v0.2.0
Dec 11 22:47:49.892 INFO [stderr]    Compiling ring v0.12.1
Dec 11 22:47:51.653 INFO [stderr]     Checking trust-dns-resolver v0.8.2
Dec 11 22:47:51.672 INFO [stderr]     Checking uuid v0.6.3
Dec 11 22:47:51.672 INFO [stderr]     Checking serde_json v1.0.17
Dec 11 22:47:51.776 INFO [stderr]     Checking serde_urlencoded v0.5.1
Dec 11 22:47:54.854 INFO [stderr]     Checking chrono v0.4.2
Dec 11 22:47:55.098 INFO [stderr]    Compiling semver v0.8.0
Dec 11 22:48:08.400 INFO [stderr]    Compiling cargo_metadata v0.3.3
Dec 11 22:48:13.036 INFO [stderr]     Checking cookie v0.10.1
Dec 11 22:48:13.504 INFO [stderr]    Compiling skeptic v0.13.2
Dec 11 22:48:19.711 INFO [stderr]    Compiling actix v0.5.6
Dec 11 22:48:41.027 INFO [stderr]     Checking alienchat v0.1.0 (/source)
Dec 11 22:48:51.684 INFO [stderr] warning: cannot find type `SessionMessage` in this scope
Dec 11 22:48:51.685 INFO [stderr]   --> src/actors/chatserver.rs:11:10
Dec 11 22:48:51.685 INFO [stderr]    |
Dec 11 22:48:51.685 INFO [stderr] 11 | #[derive(Message)]
Dec 11 22:48:51.685 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:51.686 INFO [stderr]    |
Dec 11 22:48:51.686 INFO [stderr]    = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
Dec 11 22:48:51.686 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!
Dec 11 22:48:51.686 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:51.687 INFO [stderr] 
Dec 11 22:48:51.687 INFO [stderr] warning: cannot find type `Connect` in this scope
Dec 11 22:48:51.687 INFO [stderr]   --> src/actors/chatserver.rs:15:10
Dec 11 22:48:51.687 INFO [stderr]    |
Dec 11 22:48:51.688 INFO [stderr] 15 | #[derive(Message)]
Dec 11 22:48:51.688 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:51.688 INFO [stderr]    |
Dec 11 22:48:51.688 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!
Dec 11 22:48:51.689 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:51.689 INFO [stderr] 
Dec 11 22:48:51.689 INFO [stderr] warning: cannot find type `Disconnect` in this scope
Dec 11 22:48:51.689 INFO [stderr]   --> src/actors/chatserver.rs:22:10
Dec 11 22:48:51.690 INFO [stderr]    |
Dec 11 22:48:51.690 INFO [stderr] 22 | #[derive(Message)]
Dec 11 22:48:51.690 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:51.690 INFO [stderr]    |
Dec 11 22:48:51.690 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!
Dec 11 22:48:51.691 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:51.691 INFO [stderr] 
Dec 11 22:48:51.691 INFO [stderr] warning: cannot find type `Message` in this scope
Dec 11 22:48:51.691 INFO [stderr]   --> src/actors/chatserver.rs:28:10
Dec 11 22:48:51.692 INFO [stderr]    |
Dec 11 22:48:51.692 INFO [stderr] 28 | #[derive(Message)]
Dec 11 22:48:51.692 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:51.692 INFO [stderr]    |
Dec 11 22:48:51.693 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!
Dec 11 22:48:51.693 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:51.693 INFO [stderr] 
Dec 11 22:48:51.693 INFO [stderr] warning: unused import: `std::fmt::Error`
Dec 11 22:48:51.694 INFO [stderr]  --> src/controller.rs:6:5
Dec 11 22:48:51.694 INFO [stderr]   |
Dec 11 22:48:51.694 INFO [stderr] 6 | use std::fmt::Error;
Dec 11 22:48:51.694 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 22:48:51.694 INFO [stderr]   |
Dec 11 22:48:51.695 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 22:48:51.695 INFO [stderr] 
Dec 11 22:48:51.695 INFO [stderr] warning: unused import: `std::fmt::Formatter`
Dec 11 22:48:51.695 INFO [stderr]  --> src/controller.rs:7:5
Dec 11 22:48:51.696 INFO [stderr]   |
Dec 11 22:48:51.696 INFO [stderr] 7 | use std::fmt::Formatter;
Dec 11 22:48:51.696 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:51.696 INFO [stderr] 
Dec 11 22:48:51.697 INFO [stderr] warning: unused import: `serde_json`
Dec 11 22:48:51.697 INFO [stderr]  --> src/user.rs:4:5
Dec 11 22:48:51.697 INFO [stderr]   |
Dec 11 22:48:51.697 INFO [stderr] 4 | use serde_json;
Dec 11 22:48:51.697 INFO [stderr]   |     ^^^^^^^^^^
Dec 11 22:48:51.698 INFO [stderr] 
Dec 11 22:48:52.037 INFO [stderr] warning: cannot find type `SessionMessage` in this scope
Dec 11 22:48:52.037 INFO [stderr]   --> src/actors/chatserver.rs:11:10
Dec 11 22:48:52.037 INFO [stderr]    |
Dec 11 22:48:52.038 INFO [stderr] 11 | #[derive(Message)]
Dec 11 22:48:52.038 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:52.038 INFO [stderr]    |
Dec 11 22:48:52.038 INFO [stderr]    = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
Dec 11 22:48:52.039 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!
Dec 11 22:48:52.039 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:52.039 INFO [stderr] 
Dec 11 22:48:52.040 INFO [stderr] warning: cannot find type `Connect` in this scope
Dec 11 22:48:52.040 INFO [stderr]   --> src/actors/chatserver.rs:15:10
Dec 11 22:48:52.040 INFO [stderr]    |
Dec 11 22:48:52.040 INFO [stderr] 15 | #[derive(Message)]
Dec 11 22:48:52.040 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:52.041 INFO [stderr]    |
Dec 11 22:48:52.041 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!
Dec 11 22:48:52.041 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:52.041 INFO [stderr] 
Dec 11 22:48:52.042 INFO [stderr] warning: cannot find type `Disconnect` in this scope
Dec 11 22:48:52.042 INFO [stderr]   --> src/actors/chatserver.rs:22:10
Dec 11 22:48:52.042 INFO [stderr]    |
Dec 11 22:48:52.042 INFO [stderr] 22 | #[derive(Message)]
Dec 11 22:48:52.042 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:52.042 INFO [stderr]    |
Dec 11 22:48:52.042 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!
Dec 11 22:48:52.042 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:52.042 INFO [stderr] 
Dec 11 22:48:52.042 INFO [stderr] warning: cannot find type `Message` in this scope
Dec 11 22:48:52.042 INFO [stderr]   --> src/actors/chatserver.rs:28:10
Dec 11 22:48:52.042 INFO [stderr]    |
Dec 11 22:48:52.042 INFO [stderr] 28 | #[derive(Message)]
Dec 11 22:48:52.042 INFO [stderr]    |          ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 11 22:48:52.042 INFO [stderr]    |
Dec 11 22:48:52.042 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!
Dec 11 22:48:52.043 INFO [stderr]    = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 11 22:48:52.043 INFO [stderr] 
Dec 11 22:48:52.043 INFO [stderr] warning: unused import: `std::fmt::Error`
Dec 11 22:48:52.043 INFO [stderr]  --> src/controller.rs:6:5
Dec 11 22:48:52.043 INFO [stderr]   |
Dec 11 22:48:52.043 INFO [stderr] 6 | use std::fmt::Error;
Dec 11 22:48:52.043 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 22:48:52.043 INFO [stderr]   |
Dec 11 22:48:52.044 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 22:48:52.044 INFO [stderr] 
Dec 11 22:48:52.044 INFO [stderr] warning: unused import: `std::fmt::Formatter`
Dec 11 22:48:52.044 INFO [stderr]  --> src/controller.rs:7:5
Dec 11 22:48:52.044 INFO [stderr]   |
Dec 11 22:48:52.044 INFO [stderr] 7 | use std::fmt::Formatter;
Dec 11 22:48:52.044 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.044 INFO [stderr] 
Dec 11 22:48:52.409 INFO [stderr] warning: unused variable: `role`
Dec 11 22:48:52.409 INFO [stderr]   --> src/user.rs:55:35
Dec 11 22:48:52.409 INFO [stderr]    |
Dec 11 22:48:52.409 INFO [stderr] 55 |     pub fn revoke_role(&mut self, role: &Role) {
Dec 11 22:48:52.410 INFO [stderr]    |                                   ^^^^ help: consider using `_role` instead
Dec 11 22:48:52.410 INFO [stderr]    |
Dec 11 22:48:52.410 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 22:48:52.410 INFO [stderr] 
Dec 11 22:48:52.437 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.438 INFO [stderr]   --> src/controller.rs:53:13
Dec 11 22:48:52.438 INFO [stderr]    |
Dec 11 22:48:52.438 INFO [stderr] 53 |         let mut room_data = self.room_data_interface.provide_room_data();
Dec 11 22:48:52.438 INFO [stderr]    |             ----^^^^^^^^^
Dec 11 22:48:52.439 INFO [stderr]    |             |
Dec 11 22:48:52.439 INFO [stderr]    |             help: remove this `mut`
Dec 11 22:48:52.439 INFO [stderr]    |
Dec 11 22:48:52.440 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 22:48:52.440 INFO [stderr] 
Dec 11 22:48:52.442 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.442 INFO [stderr]    --> src/controller.rs:116:13
Dec 11 22:48:52.442 INFO [stderr]     |
Dec 11 22:48:52.442 INFO [stderr] 116 |         let mut room = Room::new(name, owner);
Dec 11 22:48:52.443 INFO [stderr]     |             ----^^^^
Dec 11 22:48:52.443 INFO [stderr]     |             |
Dec 11 22:48:52.443 INFO [stderr]     |             help: remove this `mut`
Dec 11 22:48:52.443 INFO [stderr] 
Dec 11 22:48:52.587 INFO [stderr] warning: struct is never constructed: `MockUserDataImpl`
Dec 11 22:48:52.587 INFO [stderr]  --> src/mock_data.rs:8:1
Dec 11 22:48:52.587 INFO [stderr]   |
Dec 11 22:48:52.587 INFO [stderr] 8 | pub struct MockUserDataImpl {
Dec 11 22:48:52.587 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.587 INFO [stderr]   |
Dec 11 22:48:52.587 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 22:48:52.587 INFO [stderr] 
Dec 11 22:48:52.587 INFO [stderr] warning: method is never used: `new`
Dec 11 22:48:52.587 INFO [stderr]   --> src/mock_data.rs:13:5
Dec 11 22:48:52.587 INFO [stderr]    |
Dec 11 22:48:52.587 INFO [stderr] 13 |     pub fn new() -> MockUserDataImpl {
Dec 11 22:48:52.587 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.587 INFO [stderr] 
Dec 11 22:48:52.588 INFO [stderr] warning: struct is never constructed: `MockRoomDataImpl`
Dec 11 22:48:52.588 INFO [stderr]   --> src/mock_data.rs:83:1
Dec 11 22:48:52.588 INFO [stderr]    |
Dec 11 22:48:52.588 INFO [stderr] 83 | pub struct MockRoomDataImpl {
Dec 11 22:48:52.588 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.588 INFO [stderr] 
Dec 11 22:48:52.588 INFO [stderr] warning: method is never used: `new`
Dec 11 22:48:52.588 INFO [stderr]   --> src/mock_data.rs:88:5
Dec 11 22:48:52.588 INFO [stderr]    |
Dec 11 22:48:52.588 INFO [stderr] 88 |     pub fn new(user_list: &Vec<User>) -> Self {
Dec 11 22:48:52.588 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.588 INFO [stderr] 
Dec 11 22:48:52.869 INFO [stderr] warning: unused variable: `role`
Dec 11 22:48:52.869 INFO [stderr]   --> src/user.rs:55:35
Dec 11 22:48:52.869 INFO [stderr]    |
Dec 11 22:48:52.869 INFO [stderr] 55 |     pub fn revoke_role(&mut self, role: &Role) {
Dec 11 22:48:52.869 INFO [stderr]    |                                   ^^^^ help: consider using `_role` instead
Dec 11 22:48:52.869 INFO [stderr]    |
Dec 11 22:48:52.869 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 22:48:52.869 INFO [stderr] 
Dec 11 22:48:52.908 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.908 INFO [stderr]   --> src/controller.rs:53:13
Dec 11 22:48:52.908 INFO [stderr]    |
Dec 11 22:48:52.908 INFO [stderr] 53 |         let mut room_data = self.room_data_interface.provide_room_data();
Dec 11 22:48:52.908 INFO [stderr]    |             ----^^^^^^^^^
Dec 11 22:48:52.908 INFO [stderr]    |             |
Dec 11 22:48:52.908 INFO [stderr]    |             help: remove this `mut`
Dec 11 22:48:52.908 INFO [stderr]    |
Dec 11 22:48:52.908 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 22:48:52.908 INFO [stderr] 
Dec 11 22:48:52.911 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.911 INFO [stderr]    --> src/controller.rs:116:13
Dec 11 22:48:52.911 INFO [stderr]     |
Dec 11 22:48:52.912 INFO [stderr] 116 |         let mut room = Room::new(name, owner);
Dec 11 22:48:52.912 INFO [stderr]     |             ----^^^^
Dec 11 22:48:52.912 INFO [stderr]     |             |
Dec 11 22:48:52.912 INFO [stderr]     |             help: remove this `mut`
Dec 11 22:48:52.912 INFO [stderr] 
Dec 11 22:48:52.927 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.927 INFO [stderr]    --> src/controller.rs:392:9
Dec 11 22:48:52.927 INFO [stderr]     |
Dec 11 22:48:52.927 INFO [stderr] 392 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Dec 11 22:48:52.927 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.927 INFO [stderr]     |         |
Dec 11 22:48:52.927 INFO [stderr]     |         help: remove this `mut`
Dec 11 22:48:52.927 INFO [stderr] 
Dec 11 22:48:52.931 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.931 INFO [stderr]    --> src/controller.rs:420:9
Dec 11 22:48:52.931 INFO [stderr]     |
Dec 11 22:48:52.931 INFO [stderr] 420 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Dec 11 22:48:52.931 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.931 INFO [stderr]     |         |
Dec 11 22:48:52.931 INFO [stderr]     |         help: remove this `mut`
Dec 11 22:48:52.931 INFO [stderr] 
Dec 11 22:48:52.932 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.932 INFO [stderr]    --> src/controller.rs:454:9
Dec 11 22:48:52.932 INFO [stderr]     |
Dec 11 22:48:52.932 INFO [stderr] 454 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Dec 11 22:48:52.932 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.932 INFO [stderr]     |         |
Dec 11 22:48:52.932 INFO [stderr]     |         help: remove this `mut`
Dec 11 22:48:52.932 INFO [stderr] 
Dec 11 22:48:52.934 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.934 INFO [stderr]    --> src/controller.rs:486:9
Dec 11 22:48:52.934 INFO [stderr]     |
Dec 11 22:48:52.934 INFO [stderr] 486 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Dec 11 22:48:52.934 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.934 INFO [stderr]     |         |
Dec 11 22:48:52.934 INFO [stderr]     |         help: remove this `mut`
Dec 11 22:48:52.934 INFO [stderr] 
Dec 11 22:48:52.936 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.936 INFO [stderr]    --> src/controller.rs:526:9
Dec 11 22:48:52.936 INFO [stderr]     |
Dec 11 22:48:52.936 INFO [stderr] 526 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Dec 11 22:48:52.936 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.936 INFO [stderr]     |         |
Dec 11 22:48:52.936 INFO [stderr]     |         help: remove this `mut`
Dec 11 22:48:52.936 INFO [stderr] 
Dec 11 22:48:52.937 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:52.937 INFO [stderr]    --> src/controller.rs:567:9
Dec 11 22:48:52.937 INFO [stderr]     |
Dec 11 22:48:52.937 INFO [stderr] 567 |     let mut room_data_interface = MockRoomDataImpl::new(&user_data);
Dec 11 22:48:52.937 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 22:48:52.937 INFO [stderr]     |         |
Dec 11 22:48:52.937 INFO [stderr]     |         help: remove this `mut`
Dec 11 22:48:52.937 INFO [stderr] 
Dec 11 22:48:53.013 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:53.013 INFO [stderr]    --> src/room.rs:160:9
Dec 11 22:48:53.013 INFO [stderr]     |
Dec 11 22:48:53.013 INFO [stderr] 160 |     let mut room = Room::new("Testroom".to_string(), user.copy_id());
Dec 11 22:48:53.013 INFO [stderr]     |         ----^^^^
Dec 11 22:48:53.013 INFO [stderr]     |         |
Dec 11 22:48:53.013 INFO [stderr]     |         help: remove this `mut`
Dec 11 22:48:53.013 INFO [stderr] 
Dec 11 22:48:53.048 INFO [stderr] warning: variable does not need to be mutable
Dec 11 22:48:53.048 INFO [stderr]   --> src/user.rs:96:9
Dec 11 22:48:53.048 INFO [stderr]    |
Dec 11 22:48:53.048 INFO [stderr] 96 |     let mut user = User::new(
Dec 11 22:48:53.048 INFO [stderr]    |         ----^^^^
Dec 11 22:48:53.049 INFO [stderr]    |         |
Dec 11 22:48:53.049 INFO [stderr]    |         help: remove this `mut`
Dec 11 22:48:53.049 INFO [stderr] 
Dec 11 22:48:53.141 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 41s
Dec 11 22:48:53.173 INFO [stderr] su: No module specific data is present
Dec 11 22:48:54.743 INFO running `"docker" "inspect" "6364645d7b470791d6a1d27213d9fbe12881cef979d546d3f94cea180d122e70"`
Dec 11 22:48:55.128 INFO running `"docker" "rm" "-f" "6364645d7b470791d6a1d27213d9fbe12881cef979d546d3f94cea180d122e70"`
Dec 11 22:48:55.507 INFO [stdout] 6364645d7b470791d6a1d27213d9fbe12881cef979d546d3f94cea180d122e70