Dec 19 08:13:42.162 INFO checking starfys/heroesoftheswarm-rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:13:42.163 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/starfys/heroesoftheswarm-rs:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:13:42.539 INFO [stdout] b1a4c079a412ec7a86340583d3de8af412bab5e0926a438b5566f074bf5cc828
Dec 19 08:13:42.541 INFO running `"docker" "start" "-a" "b1a4c079a412ec7a86340583d3de8af412bab5e0926a438b5566f074bf5cc828"`
Dec 19 08:13:44.187 INFO [stderr]    Compiling openssl v0.9.23
Dec 19 08:13:44.196 INFO [stderr]     Checking termcolor v0.3.3
Dec 19 08:13:44.196 INFO [stderr]    Compiling openssl-sys v0.9.24
Dec 19 08:13:44.196 INFO [stderr]     Checking num-integer v0.1.35
Dec 19 08:13:44.196 INFO [stderr]     Checking base64 v0.5.2
Dec 19 08:13:44.196 INFO [stderr]     Checking base64 v0.6.0
Dec 19 08:13:44.196 INFO [stderr]     Checking tokio-io v0.1.4
Dec 19 08:13:44.198 INFO [stderr]     Checking mime v0.2.6
Dec 19 08:13:45.065 INFO [stderr]     Checking regex v0.2.5
Dec 19 08:13:45.136 INFO [stderr]     Checking num-iter v0.1.34
Dec 19 08:13:45.428 INFO [stderr]     Checking hyper v0.10.13
Dec 19 08:13:45.640 INFO [stderr]     Checking num v0.1.41
Dec 19 08:13:45.885 INFO [stderr]     Checking chrono v0.4.0
Dec 19 08:13:46.468 INFO [stderr]     Checking tokio-core v0.1.12
Dec 19 08:13:48.708 INFO [stderr]     Checking env_logger v0.5.3
Dec 19 08:13:50.630 INFO [stderr]     Checking native-tls v0.1.5
Dec 19 08:13:50.953 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 19 08:13:51.184 INFO [stderr]     Checking websocket v0.20.2
Dec 19 08:13:52.531 INFO [stderr]     Checking heroesoftheswarm v0.2.0 (/opt/crater/workdir)
Dec 19 08:13:52.926 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 08:13:52.926 INFO [stderr]    --> src/entity.rs:320:22
Dec 19 08:13:52.926 INFO [stderr]     |
Dec 19 08:13:52.926 INFO [stderr] 320 |             for j in (0..(i * 4)) {
Dec 19 08:13:52.926 INFO [stderr]     |                      ^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:13:52.926 INFO [stderr]     |
Dec 19 08:13:52.926 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 19 08:13:52.926 INFO [stderr] 
Dec 19 08:13:52.927 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:13:52.927 INFO [stderr]   --> src/swarm_language.rs:80:12
Dec 19 08:13:52.928 INFO [stderr]    |
Dec 19 08:13:52.928 INFO [stderr] 80 |         if (command.len() == 0) {
Dec 19 08:13:52.928 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:13:52.928 INFO [stderr] 
Dec 19 08:13:52.928 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:13:52.928 INFO [stderr]    --> src/swarm_language.rs:102:36
Dec 19 08:13:52.928 INFO [stderr]     |
Dec 19 08:13:52.928 INFO [stderr] 102 |                                 if (val.abs() <= 30.0_f32) {
Dec 19 08:13:52.928 INFO [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:13:52.928 INFO [stderr] 
Dec 19 08:13:52.928 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:13:52.928 INFO [stderr]    --> src/swarm_language.rs:214:16
Dec 19 08:13:52.928 INFO [stderr]     |
Dec 19 08:13:52.928 INFO [stderr] 214 |             if (command_list.len() > MAX_NUM_COMMANDS) {
Dec 19 08:13:52.928 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:13:52.928 INFO [stderr] 
Dec 19 08:13:52.931 INFO [stderr] warning: unused import: `world::World`
Dec 19 08:13:52.931 INFO [stderr]   --> src/entity.rs:17:5
Dec 19 08:13:52.931 INFO [stderr]    |
Dec 19 08:13:52.931 INFO [stderr] 17 | use world::World;
Dec 19 08:13:52.931 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 08:13:52.931 INFO [stderr]    |
Dec 19 08:13:52.931 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 08:13:52.931 INFO [stderr] 
Dec 19 08:13:52.933 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:13:52.933 INFO [stderr]   --> src/swarm_language.rs:80:12
Dec 19 08:13:52.934 INFO [stderr]    |
Dec 19 08:13:52.934 INFO [stderr] 80 |         if (command.len() == 0) {
Dec 19 08:13:52.934 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:13:52.934 INFO [stderr]    |
Dec 19 08:13:52.934 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 08:13:52.934 INFO [stderr] 
Dec 19 08:13:52.934 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:13:52.934 INFO [stderr]    --> src/swarm_language.rs:102:36
Dec 19 08:13:52.934 INFO [stderr]     |
Dec 19 08:13:52.934 INFO [stderr] 102 |                                 if (val.abs() <= 30.0_f32) {
Dec 19 08:13:52.934 INFO [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:13:52.934 INFO [stderr] 
Dec 19 08:13:52.934 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:13:52.934 INFO [stderr]    --> src/swarm_language.rs:214:16
Dec 19 08:13:52.934 INFO [stderr]     |
Dec 19 08:13:52.934 INFO [stderr] 214 |             if (command_list.len() > MAX_NUM_COMMANDS) {
Dec 19 08:13:52.934 INFO [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:13:52.934 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.353 INFO [stderr]    --> src/server.rs:253:29
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr] 253 |                         Err(error) => {
Dec 19 08:13:53.353 INFO [stderr]     |                             ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: value assigned to `program` is never read
Dec 19 08:13:53.353 INFO [stderr]    --> src/swarm_language.rs:228:13
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr] 228 |     let mut program: String = String::new();
Dec 19 08:13:53.353 INFO [stderr]     |             ^^^^^^^
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 08:13:53.353 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `command`
Dec 19 08:13:53.353 INFO [stderr]    --> src/swarm_language.rs:254:13
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr] 254 |         let command: SwarmCommand = "test".parse().unwrap();
Dec 19 08:13:53.353 INFO [stderr]     |             ^^^^^^^ help: consider using `_command` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `command`
Dec 19 08:13:53.353 INFO [stderr]    --> src/swarm_language.rs:260:13
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr] 260 |         let command: SwarmProgram = "test".parse().unwrap();
Dec 19 08:13:53.353 INFO [stderr]     |             ^^^^^^^ help: consider using `_command` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `world`
Dec 19 08:13:53.353 INFO [stderr]    --> src/world.rs:251:13
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr] 251 |         let world = World::new(1000.0, 1000.0);
Dec 19 08:13:53.353 INFO [stderr]     |             ^^^^^ help: consider using `_world` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `bullet_update_distance`
Dec 19 08:13:53.353 INFO [stderr]    --> src/entity.rs:396:13
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr] 396 |         let bullet_update_distance: f32 = 20.0;
Dec 19 08:13:53.353 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: consider using `_bullet_update_distance` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `coords`
Dec 19 08:13:53.353 INFO [stderr]   --> src/server.rs:75:24
Dec 19 08:13:53.353 INFO [stderr]    |
Dec 19 08:13:53.353 INFO [stderr] 75 |                     Ok(coords) => match world.read() {
Dec 19 08:13:53.353 INFO [stderr]    |                        ^^^^^^ help: consider using `_coords` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.353 INFO [stderr]   --> src/server.rs:81:37
Dec 19 08:13:53.353 INFO [stderr]    |
Dec 19 08:13:53.353 INFO [stderr] 81 |                                 Err(error) => {}
Dec 19 08:13:53.353 INFO [stderr]    |                                     ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.353 INFO [stderr]   --> src/server.rs:84:29
Dec 19 08:13:53.353 INFO [stderr]    |
Dec 19 08:13:53.353 INFO [stderr] 84 |                         Err(error) => {
Dec 19 08:13:53.353 INFO [stderr]    |                             ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.353 INFO [stderr]    --> src/server.rs:124:29
Dec 19 08:13:53.353 INFO [stderr]     |
Dec 19 08:13:53.353 INFO [stderr] 124 |                         Err(error) => {
Dec 19 08:13:53.353 INFO [stderr]     |                             ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.353 INFO [stderr] 
Dec 19 08:13:53.353 INFO [stderr] warning: unused variable: `exp_queue`
Dec 19 08:13:53.353 INFO [stderr]    --> src/world.rs:148:17
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr] 148 |         let mut exp_queue: Vec<(usize, i64)> = Vec::new();
Dec 19 08:13:53.354 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_exp_queue` instead
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: value assigned to `upper_bound_members` is never read
Dec 19 08:13:53.354 INFO [stderr]    --> src/world.rs:206:33
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr] 206 |                                 upper_bound_members -= 1;
Dec 19 08:13:53.354 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.354 INFO [stderr]    --> src/server.rs:253:29
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr] 253 |                         Err(error) => {
Dec 19 08:13:53.354 INFO [stderr]     |                             ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: unused variable: `bullet_update_distance`
Dec 19 08:13:53.354 INFO [stderr]    --> src/entity.rs:396:13
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr] 396 |         let bullet_update_distance: f32 = 20.0;
Dec 19 08:13:53.354 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: consider using `_bullet_update_distance` instead
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: unused variable: `coords`
Dec 19 08:13:53.354 INFO [stderr]   --> src/server.rs:75:24
Dec 19 08:13:53.354 INFO [stderr]    |
Dec 19 08:13:53.354 INFO [stderr] 75 |                     Ok(coords) => match world.read() {
Dec 19 08:13:53.354 INFO [stderr]    |                        ^^^^^^ help: consider using `_coords` instead
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.354 INFO [stderr]   --> src/server.rs:81:37
Dec 19 08:13:53.354 INFO [stderr]    |
Dec 19 08:13:53.354 INFO [stderr] 81 |                                 Err(error) => {}
Dec 19 08:13:53.354 INFO [stderr]    |                                     ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.354 INFO [stderr]   --> src/server.rs:84:29
Dec 19 08:13:53.354 INFO [stderr]    |
Dec 19 08:13:53.354 INFO [stderr] 84 |                         Err(error) => {
Dec 19 08:13:53.354 INFO [stderr]    |                             ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: unused variable: `error`
Dec 19 08:13:53.354 INFO [stderr]    --> src/server.rs:124:29
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr] 124 |                         Err(error) => {
Dec 19 08:13:53.354 INFO [stderr]     |                             ^^^^^ help: consider using `_error` instead
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: unused variable: `exp_queue`
Dec 19 08:13:53.354 INFO [stderr]    --> src/world.rs:148:17
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr] 148 |         let mut exp_queue: Vec<(usize, i64)> = Vec::new();
Dec 19 08:13:53.354 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_exp_queue` instead
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.354 INFO [stderr] warning: value assigned to `upper_bound_members` is never read
Dec 19 08:13:53.354 INFO [stderr]    --> src/world.rs:206:33
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr] 206 |                                 upper_bound_members -= 1;
Dec 19 08:13:53.354 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.354 INFO [stderr]     |
Dec 19 08:13:53.354 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 08:13:53.354 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 08:13:53.354 INFO [stderr] 
Dec 19 08:13:53.504 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:13:53.504 INFO [stderr]    --> src/world.rs:148:13
Dec 19 08:13:53.504 INFO [stderr]     |
Dec 19 08:13:53.504 INFO [stderr] 148 |         let mut exp_queue: Vec<(usize, i64)> = Vec::new();
Dec 19 08:13:53.504 INFO [stderr]     |             ----^^^^^^^^^
Dec 19 08:13:53.504 INFO [stderr]     |             |
Dec 19 08:13:53.504 INFO [stderr]     |             help: remove this `mut`
Dec 19 08:13:53.504 INFO [stderr]     |
Dec 19 08:13:53.504 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 08:13:53.504 INFO [stderr] 
Dec 19 08:13:53.508 INFO [stderr] warning: constant item is never used: `INITIAL_SWARM_SIZE`
Dec 19 08:13:53.508 INFO [stderr]   --> src/entity.rs:21:1
Dec 19 08:13:53.508 INFO [stderr]    |
Dec 19 08:13:53.508 INFO [stderr] 21 | const INITIAL_SWARM_SIZE: usize = 10;
Dec 19 08:13:53.508 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.508 INFO [stderr]    |
Dec 19 08:13:53.508 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:13:53.508 INFO [stderr] 
Dec 19 08:13:53.508 INFO [stderr] warning: constant item is never used: `MAX_SWARM_SIZE`
Dec 19 08:13:53.508 INFO [stderr]   --> src/entity.rs:23:1
Dec 19 08:13:53.508 INFO [stderr]    |
Dec 19 08:13:53.508 INFO [stderr] 23 | const MAX_SWARM_SIZE: usize = 20;
Dec 19 08:13:53.508 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.508 INFO [stderr] 
Dec 19 08:13:53.508 INFO [stderr] warning: field is never used: `x`
Dec 19 08:13:53.508 INFO [stderr]   --> src/rpc.rs:89:5
Dec 19 08:13:53.508 INFO [stderr]    |
Dec 19 08:13:53.508 INFO [stderr] 89 |     x: f32,
Dec 19 08:13:53.508 INFO [stderr]    |     ^^^^^^
Dec 19 08:13:53.508 INFO [stderr] 
Dec 19 08:13:53.508 INFO [stderr] warning: field is never used: `y`
Dec 19 08:13:53.508 INFO [stderr]   --> src/rpc.rs:90:5
Dec 19 08:13:53.508 INFO [stderr]    |
Dec 19 08:13:53.508 INFO [stderr] 90 |     y: f32,
Dec 19 08:13:53.508 INFO [stderr]    |     ^^^^^^
Dec 19 08:13:53.508 INFO [stderr] 
Dec 19 08:13:53.508 INFO [stderr] warning: the feature `duration_from_micros` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 19 08:13:53.508 INFO [stderr]   --> src/lib.rs:16:12
Dec 19 08:13:53.508 INFO [stderr]    |
Dec 19 08:13:53.508 INFO [stderr] 16 | #![feature(duration_from_micros)]
Dec 19 08:13:53.508 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.508 INFO [stderr]    |
Dec 19 08:13:53.508 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 19 08:13:53.508 INFO [stderr] 
Dec 19 08:13:53.509 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 19 08:13:53.509 INFO [stderr]   --> src/lib.rs:17:12
Dec 19 08:13:53.509 INFO [stderr]    |
Dec 19 08:13:53.509 INFO [stderr] 17 | #![feature(iterator_step_by)]
Dec 19 08:13:53.509 INFO [stderr]    |            ^^^^^^^^^^^^^^^^
Dec 19 08:13:53.509 INFO [stderr] 
Dec 19 08:13:53.524 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:13:53.524 INFO [stderr]    --> src/world.rs:148:13
Dec 19 08:13:53.524 INFO [stderr]     |
Dec 19 08:13:53.524 INFO [stderr] 148 |         let mut exp_queue: Vec<(usize, i64)> = Vec::new();
Dec 19 08:13:53.524 INFO [stderr]     |             ----^^^^^^^^^
Dec 19 08:13:53.524 INFO [stderr]     |             |
Dec 19 08:13:53.524 INFO [stderr]     |             help: remove this `mut`
Dec 19 08:13:53.524 INFO [stderr]     |
Dec 19 08:13:53.524 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 08:13:53.524 INFO [stderr] 
Dec 19 08:13:53.528 INFO [stderr] warning: constant item is never used: `INITIAL_SWARM_SIZE`
Dec 19 08:13:53.528 INFO [stderr]   --> src/entity.rs:21:1
Dec 19 08:13:53.528 INFO [stderr]    |
Dec 19 08:13:53.528 INFO [stderr] 21 | const INITIAL_SWARM_SIZE: usize = 10;
Dec 19 08:13:53.528 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.528 INFO [stderr]    |
Dec 19 08:13:53.528 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:13:53.528 INFO [stderr] 
Dec 19 08:13:53.528 INFO [stderr] warning: constant item is never used: `MAX_SWARM_SIZE`
Dec 19 08:13:53.528 INFO [stderr]   --> src/entity.rs:23:1
Dec 19 08:13:53.528 INFO [stderr]    |
Dec 19 08:13:53.528 INFO [stderr] 23 | const MAX_SWARM_SIZE: usize = 20;
Dec 19 08:13:53.529 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.529 INFO [stderr] 
Dec 19 08:13:53.529 INFO [stderr] warning: function is never used: `calculate_offsets`
Dec 19 08:13:53.529 INFO [stderr]    --> src/entity.rs:310:5
Dec 19 08:13:53.529 INFO [stderr]     |
Dec 19 08:13:53.529 INFO [stderr] 310 |     pub fn calculate_offsets(radius: f32) -> Vec<(f32, f32)> {
Dec 19 08:13:53.529 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.529 INFO [stderr] 
Dec 19 08:13:53.529 INFO [stderr] warning: field is never used: `x`
Dec 19 08:13:53.529 INFO [stderr]   --> src/rpc.rs:89:5
Dec 19 08:13:53.529 INFO [stderr]    |
Dec 19 08:13:53.529 INFO [stderr] 89 |     x: f32,
Dec 19 08:13:53.529 INFO [stderr]    |     ^^^^^^
Dec 19 08:13:53.529 INFO [stderr] 
Dec 19 08:13:53.529 INFO [stderr] warning: field is never used: `y`
Dec 19 08:13:53.529 INFO [stderr]   --> src/rpc.rs:90:5
Dec 19 08:13:53.529 INFO [stderr]    |
Dec 19 08:13:53.529 INFO [stderr] 90 |     y: f32,
Dec 19 08:13:53.529 INFO [stderr]    |     ^^^^^^
Dec 19 08:13:53.529 INFO [stderr] 
Dec 19 08:13:53.530 INFO [stderr] warning: the feature `duration_from_micros` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 19 08:13:53.530 INFO [stderr]   --> src/lib.rs:16:12
Dec 19 08:13:53.530 INFO [stderr]    |
Dec 19 08:13:53.530 INFO [stderr] 16 | #![feature(duration_from_micros)]
Dec 19 08:13:53.530 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 19 08:13:53.530 INFO [stderr]    |
Dec 19 08:13:53.530 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 19 08:13:53.530 INFO [stderr] 
Dec 19 08:13:53.530 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 19 08:13:53.530 INFO [stderr]   --> src/lib.rs:17:12
Dec 19 08:13:53.530 INFO [stderr]    |
Dec 19 08:13:53.530 INFO [stderr] 17 | #![feature(iterator_step_by)]
Dec 19 08:13:53.530 INFO [stderr]    |            ^^^^^^^^^^^^^^^^
Dec 19 08:13:53.530 INFO [stderr] 
Dec 19 08:13:53.968 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.03s
Dec 19 08:13:54.370 INFO running `"docker" "inspect" "b1a4c079a412ec7a86340583d3de8af412bab5e0926a438b5566f074bf5cc828"`
Dec 19 08:13:54.457 INFO running `"docker" "rm" "-f" "b1a4c079a412ec7a86340583d3de8af412bab5e0926a438b5566f074bf5cc828"`
Dec 19 08:13:54.565 INFO [stdout] b1a4c079a412ec7a86340583d3de8af412bab5e0926a438b5566f074bf5cc828