Dec 04 07:45:34.008 INFO checking vbo/nnrs against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 07:45:34.008 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 07:45:34.763 INFO [stdout] f1d8b94213d0367f3676934d27e8000939247a88617be78799ab32e732c53d86
Dec 04 07:45:34.769 INFO running `"docker" "start" "-a" "f1d8b94213d0367f3676934d27e8000939247a88617be78799ab32e732c53d86"`
Dec 04 07:45:35.807 INFO [stderr] usermod: no changes
Dec 04 07:45:35.975 INFO [stderr]     Checking serde v1.0.43
Dec 04 07:45:35.983 INFO [stderr]    Compiling proc-macro2 v0.3.7
Dec 04 07:45:35.983 INFO [stderr]     Checking atty v0.2.9
Dec 04 07:45:35.983 INFO [stderr]    Compiling rand_derive v0.3.1
Dec 04 07:45:36.755 INFO [stderr]     Checking clap v2.31.2
Dec 04 07:45:39.651 INFO [stderr]    Compiling quote v0.5.2
Dec 04 07:45:40.395 INFO [stderr]    Compiling syn v0.13.1
Dec 04 07:45:48.595 INFO [stderr]    Compiling serde_derive_internals v0.23.1
Dec 04 07:45:50.395 INFO [stderr]     Checking serde_json v1.0.16
Dec 04 07:45:50.528 INFO [stderr]    Compiling serde_derive v1.0.43
Dec 04 07:45:57.259 INFO [stderr]     Checking nnrs v0.1.0 (/source)
Dec 04 07:45:57.955 INFO [stderr] warning: unused import: `std::time`
Dec 04 07:45:57.955 INFO [stderr]  --> src/mnist.rs:2:5
Dec 04 07:45:57.955 INFO [stderr]   |
Dec 04 07:45:57.955 INFO [stderr] 2 | use std::time;
Dec 04 07:45:57.955 INFO [stderr]   |     ^^^^^^^^^
Dec 04 07:45:57.955 INFO [stderr]   |
Dec 04 07:45:57.955 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:45:57.955 INFO [stderr] 
Dec 04 07:45:57.955 INFO [stderr] warning: unused import: `math`
Dec 04 07:45:57.955 INFO [stderr]   --> src/mnist.rs:15:5
Dec 04 07:45:57.955 INFO [stderr]    |
Dec 04 07:45:57.955 INFO [stderr] 15 | use math;
Dec 04 07:45:57.955 INFO [stderr]    |     ^^^^
Dec 04 07:45:57.955 INFO [stderr] 
Dec 04 07:45:57.955 INFO [stderr] warning: unused import: `math::Matrix`
Dec 04 07:45:57.955 INFO [stderr]   --> src/mnist.rs:16:5
Dec 04 07:45:57.955 INFO [stderr]    |
Dec 04 07:45:57.955 INFO [stderr] 16 | use math::Matrix;
Dec 04 07:45:57.955 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 04 07:45:57.955 INFO [stderr] 
Dec 04 07:45:57.955 INFO [stderr] warning: unused import: `timing`
Dec 04 07:45:57.955 INFO [stderr]   --> src/mnist.rs:19:5
Dec 04 07:45:57.955 INFO [stderr]    |
Dec 04 07:45:57.955 INFO [stderr] 19 | use timing;
Dec 04 07:45:57.955 INFO [stderr]    |     ^^^^^^
Dec 04 07:45:57.955 INFO [stderr] 
Dec 04 07:45:57.969 INFO [stderr] warning: unused import: `std::mem`
Dec 04 07:45:57.969 INFO [stderr]  --> src/network.rs:4:5
Dec 04 07:45:57.969 INFO [stderr]   |
Dec 04 07:45:57.969 INFO [stderr] 4 | use std::mem;
Dec 04 07:45:57.969 INFO [stderr]   |     ^^^^^^^^
Dec 04 07:45:57.969 INFO [stderr] 
Dec 04 07:45:57.969 INFO [stderr] warning: unused import: `timing::Timing`
Dec 04 07:45:57.969 INFO [stderr]  --> src/parallel_trainer.rs:9:5
Dec 04 07:45:57.969 INFO [stderr]   |
Dec 04 07:45:57.969 INFO [stderr] 9 | use timing::Timing;
Dec 04 07:45:57.969 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 04 07:45:57.969 INFO [stderr] 
Dec 04 07:45:57.969 INFO [stderr] warning: unused import: `serde_json`
Dec 04 07:45:57.969 INFO [stderr]  --> src/snake.rs:6:5
Dec 04 07:45:57.969 INFO [stderr]   |
Dec 04 07:45:57.969 INFO [stderr] 6 | use serde_json;
Dec 04 07:45:57.969 INFO [stderr]   |     ^^^^^^^^^^
Dec 04 07:45:57.969 INFO [stderr] 
Dec 04 07:45:57.979 INFO [stderr] warning: unused import: `Network`
Dec 04 07:45:57.979 INFO [stderr]  --> src/snake_nn.rs:4:15
Dec 04 07:45:57.979 INFO [stderr]   |
Dec 04 07:45:57.979 INFO [stderr] 4 | use network::{Network, NetworkParameters, NetworkPredictor};
Dec 04 07:45:57.979 INFO [stderr]   |               ^^^^^^^
Dec 04 07:45:57.979 INFO [stderr] 
Dec 04 07:45:57.979 INFO [stderr] warning: unused imports: `IndependentSample`, `Range`
Dec 04 07:45:57.979 INFO [stderr]  --> src/snake_nn.rs:7:27
Dec 04 07:45:57.979 INFO [stderr]   |
Dec 04 07:45:57.979 INFO [stderr] 7 | use rand::distributions::{IndependentSample, Range};
Dec 04 07:45:57.979 INFO [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
Dec 04 07:45:57.979 INFO [stderr] 
Dec 04 07:45:57.979 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 04 07:45:57.979 INFO [stderr]   --> src/snake_nn.rs:18:5
Dec 04 07:45:57.979 INFO [stderr]    |
Dec 04 07:45:57.979 INFO [stderr] 18 | use std::sync::mpsc;
Dec 04 07:45:57.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 07:45:57.979 INFO [stderr] 
Dec 04 07:45:57.979 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 04 07:45:57.979 INFO [stderr]   --> src/snake_nn.rs:19:23
Dec 04 07:45:57.979 INFO [stderr]    |
Dec 04 07:45:57.979 INFO [stderr] 19 | use std::sync::mpsc::{Receiver, Sender};
Dec 04 07:45:57.979 INFO [stderr]    |                       ^^^^^^^^  ^^^^^^
Dec 04 07:45:57.979 INFO [stderr] 
Dec 04 07:45:57.979 INFO [stderr] warning: unused import: `timing::duration_as_total_nanos`
Dec 04 07:45:57.979 INFO [stderr]   --> src/snake_nn.rs:22:5
Dec 04 07:45:57.979 INFO [stderr]    |
Dec 04 07:45:57.979 INFO [stderr] 22 | use timing::duration_as_total_nanos;
Dec 04 07:45:57.979 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:57.979 INFO [stderr] 
Dec 04 07:45:57.979 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 04 07:45:57.979 INFO [stderr]    --> src/snake_nn.rs:340:8
Dec 04 07:45:57.979 INFO [stderr]     |
Dec 04 07:45:57.979 INFO [stderr] 340 |     if (rng.gen_range(0.0, 1.0) <= random_move_prob) {
Dec 04 07:45:57.979 INFO [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 07:45:57.979 INFO [stderr]     |
Dec 04 07:45:57.979 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 04 07:45:57.979 INFO [stderr] 
Dec 04 07:45:57.979 INFO [stderr] warning: unused import: `std::collections::hash_map::Entry`
Dec 04 07:45:57.979 INFO [stderr]  --> src/timing.rs:2:5
Dec 04 07:45:57.979 INFO [stderr]   |
Dec 04 07:45:57.979 INFO [stderr] 2 | use std::collections::hash_map::Entry;
Dec 04 07:45:57.979 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:57.979 INFO [stderr] 
Dec 04 07:45:58.047 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 04 07:45:58.047 INFO [stderr]    --> src/snake_nn.rs:176:13
Dec 04 07:45:58.047 INFO [stderr]     |
Dec 04 07:45:58.047 INFO [stderr] 176 |             thread::sleep_ms(SLEEP_INTERVAL_MS);
Dec 04 07:45:58.047 INFO [stderr]     |             ^^^^^^^^^^^^^^^^
Dec 04 07:45:58.047 INFO [stderr]     |
Dec 04 07:45:58.047 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 04 07:45:58.047 INFO [stderr] 
Dec 04 07:45:58.047 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 04 07:45:58.047 INFO [stderr]    --> src/snake_nn.rs:212:17
Dec 04 07:45:58.047 INFO [stderr]     |
Dec 04 07:45:58.047 INFO [stderr] 212 |                 thread::sleep_ms(SLEEP_INTERVAL_MS);
Dec 04 07:45:58.047 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 04 07:45:58.047 INFO [stderr] 
Dec 04 07:45:58.163 INFO [stderr] warning: unused import: `std::time`
Dec 04 07:45:58.163 INFO [stderr]  --> src/mnist.rs:2:5
Dec 04 07:45:58.163 INFO [stderr]   |
Dec 04 07:45:58.163 INFO [stderr] 2 | use std::time;
Dec 04 07:45:58.163 INFO [stderr]   |     ^^^^^^^^^
Dec 04 07:45:58.163 INFO [stderr]   |
Dec 04 07:45:58.163 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:45:58.163 INFO [stderr] 
Dec 04 07:45:58.163 INFO [stderr] warning: unused import: `math`
Dec 04 07:45:58.163 INFO [stderr]   --> src/mnist.rs:15:5
Dec 04 07:45:58.163 INFO [stderr]    |
Dec 04 07:45:58.163 INFO [stderr] 15 | use math;
Dec 04 07:45:58.163 INFO [stderr]    |     ^^^^
Dec 04 07:45:58.163 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `math::Matrix`
Dec 04 07:45:58.167 INFO [stderr]   --> src/mnist.rs:16:5
Dec 04 07:45:58.167 INFO [stderr]    |
Dec 04 07:45:58.167 INFO [stderr] 16 | use math::Matrix;
Dec 04 07:45:58.167 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `timing`
Dec 04 07:45:58.167 INFO [stderr]   --> src/mnist.rs:19:5
Dec 04 07:45:58.167 INFO [stderr]    |
Dec 04 07:45:58.167 INFO [stderr] 19 | use timing;
Dec 04 07:45:58.167 INFO [stderr]    |     ^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `std::mem`
Dec 04 07:45:58.167 INFO [stderr]  --> src/network.rs:4:5
Dec 04 07:45:58.167 INFO [stderr]   |
Dec 04 07:45:58.167 INFO [stderr] 4 | use std::mem;
Dec 04 07:45:58.167 INFO [stderr]   |     ^^^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `timing::Timing`
Dec 04 07:45:58.167 INFO [stderr]  --> src/parallel_trainer.rs:9:5
Dec 04 07:45:58.167 INFO [stderr]   |
Dec 04 07:45:58.167 INFO [stderr] 9 | use timing::Timing;
Dec 04 07:45:58.167 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `serde_json`
Dec 04 07:45:58.167 INFO [stderr]  --> src/snake.rs:6:5
Dec 04 07:45:58.167 INFO [stderr]   |
Dec 04 07:45:58.167 INFO [stderr] 6 | use serde_json;
Dec 04 07:45:58.167 INFO [stderr]   |     ^^^^^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `Network`
Dec 04 07:45:58.167 INFO [stderr]  --> src/snake_nn.rs:4:15
Dec 04 07:45:58.167 INFO [stderr]   |
Dec 04 07:45:58.167 INFO [stderr] 4 | use network::{Network, NetworkParameters, NetworkPredictor};
Dec 04 07:45:58.167 INFO [stderr]   |               ^^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused imports: `IndependentSample`, `Range`
Dec 04 07:45:58.167 INFO [stderr]  --> src/snake_nn.rs:7:27
Dec 04 07:45:58.167 INFO [stderr]   |
Dec 04 07:45:58.167 INFO [stderr] 7 | use rand::distributions::{IndependentSample, Range};
Dec 04 07:45:58.167 INFO [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 04 07:45:58.167 INFO [stderr]   --> src/snake_nn.rs:18:5
Dec 04 07:45:58.167 INFO [stderr]    |
Dec 04 07:45:58.167 INFO [stderr] 18 | use std::sync::mpsc;
Dec 04 07:45:58.167 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 04 07:45:58.167 INFO [stderr]   --> src/snake_nn.rs:19:23
Dec 04 07:45:58.167 INFO [stderr]    |
Dec 04 07:45:58.167 INFO [stderr] 19 | use std::sync::mpsc::{Receiver, Sender};
Dec 04 07:45:58.167 INFO [stderr]    |                       ^^^^^^^^  ^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.167 INFO [stderr] warning: unused import: `timing::duration_as_total_nanos`
Dec 04 07:45:58.167 INFO [stderr]   --> src/snake_nn.rs:22:5
Dec 04 07:45:58.167 INFO [stderr]    |
Dec 04 07:45:58.167 INFO [stderr] 22 | use timing::duration_as_total_nanos;
Dec 04 07:45:58.167 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:58.167 INFO [stderr] 
Dec 04 07:45:58.171 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 04 07:45:58.171 INFO [stderr]    --> src/snake_nn.rs:340:8
Dec 04 07:45:58.171 INFO [stderr]     |
Dec 04 07:45:58.171 INFO [stderr] 340 |     if (rng.gen_range(0.0, 1.0) <= random_move_prob) {
Dec 04 07:45:58.171 INFO [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 07:45:58.171 INFO [stderr]     |
Dec 04 07:45:58.171 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 04 07:45:58.171 INFO [stderr] 
Dec 04 07:45:58.171 INFO [stderr] warning: unused import: `std::collections::hash_map::Entry`
Dec 04 07:45:58.171 INFO [stderr]  --> src/timing.rs:2:5
Dec 04 07:45:58.171 INFO [stderr]   |
Dec 04 07:45:58.171 INFO [stderr] 2 | use std::collections::hash_map::Entry;
Dec 04 07:45:58.171 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:58.171 INFO [stderr] 
Dec 04 07:45:58.267 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 04 07:45:58.267 INFO [stderr]    --> src/snake_nn.rs:176:13
Dec 04 07:45:58.267 INFO [stderr]     |
Dec 04 07:45:58.267 INFO [stderr] 176 |             thread::sleep_ms(SLEEP_INTERVAL_MS);
Dec 04 07:45:58.267 INFO [stderr]     |             ^^^^^^^^^^^^^^^^
Dec 04 07:45:58.267 INFO [stderr]     |
Dec 04 07:45:58.267 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 04 07:45:58.267 INFO [stderr] 
Dec 04 07:45:58.267 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 04 07:45:58.267 INFO [stderr]    --> src/snake_nn.rs:212:17
Dec 04 07:45:58.267 INFO [stderr]     |
Dec 04 07:45:58.267 INFO [stderr] 212 |                 thread::sleep_ms(SLEEP_INTERVAL_MS);
Dec 04 07:45:58.267 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 04 07:45:58.267 INFO [stderr] 
Dec 04 07:45:58.807 INFO [stderr] warning: unused import: `rand::Rng`
Dec 04 07:45:58.807 INFO [stderr]  --> src/snake.rs:1:5
Dec 04 07:45:58.807 INFO [stderr]   |
Dec 04 07:45:58.807 INFO [stderr] 1 | use rand::Rng;
Dec 04 07:45:58.807 INFO [stderr]   |     ^^^^^^^^^
Dec 04 07:45:58.807 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `hits`
Dec 04 07:45:58.890 INFO [stderr]   --> src/mnist.rs:64:13
Dec 04 07:45:58.890 INFO [stderr]    |
Dec 04 07:45:58.890 INFO [stderr] 64 |     let mut hits = 0usize;
Dec 04 07:45:58.890 INFO [stderr]    |             ^^^^ help: consider using `_hits` instead
Dec 04 07:45:58.890 INFO [stderr]    |
Dec 04 07:45:58.890 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `predictor`
Dec 04 07:45:58.890 INFO [stderr]   --> src/mnist.rs:98:30
Dec 04 07:45:58.890 INFO [stderr]    |
Dec 04 07:45:58.890 INFO [stderr] 98 |                 let (params, predictor, _) = parallel_trainer.borrow_network_parts();
Dec 04 07:45:58.890 INFO [stderr]    |                              ^^^^^^^^^ help: consider using `_predictor` instead
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `log_every_n`
Dec 04 07:45:58.890 INFO [stderr]   --> src/mnist.rs:35:5
Dec 04 07:45:58.890 INFO [stderr]    |
Dec 04 07:45:58.890 INFO [stderr] 35 |     log_every_n: usize,
Dec 04 07:45:58.890 INFO [stderr]    |     ^^^^^^^^^^^ help: consider using `_log_every_n` instead
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `outputs`
Dec 04 07:45:58.890 INFO [stderr]    --> src/parallel_trainer.rs:150:21
Dec 04 07:45:58.890 INFO [stderr]     |
Dec 04 07:45:58.890 INFO [stderr] 150 |                 let outputs = local_nn_predictor
Dec 04 07:45:58.890 INFO [stderr]     |                     ^^^^^^^ help: consider using `_outputs` instead
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `iters`
Dec 04 07:45:58.890 INFO [stderr]    --> src/snake.rs:168:21
Dec 04 07:45:58.890 INFO [stderr]     |
Dec 04 07:45:58.890 INFO [stderr] 168 |             let mut iters = 0;
Dec 04 07:45:58.890 INFO [stderr]     |                     ^^^^^ help: consider using `_iters` instead
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `epoch_no`
Dec 04 07:45:58.890 INFO [stderr]   --> src/snake_nn.rs:73:9
Dec 04 07:45:58.890 INFO [stderr]    |
Dec 04 07:45:58.890 INFO [stderr] 73 |     for epoch_no in 0..num_epochs {
Dec 04 07:45:58.890 INFO [stderr]    |         ^^^^^^^^ help: consider using `_epoch_no` instead
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `predictor`
Dec 04 07:45:58.890 INFO [stderr]   --> src/snake_nn.rs:90:30
Dec 04 07:45:58.890 INFO [stderr]    |
Dec 04 07:45:58.890 INFO [stderr] 90 |                 let (params, predictor, _) = parallel_trainer.borrow_network_parts();
Dec 04 07:45:58.890 INFO [stderr]    |                              ^^^^^^^^^ help: consider using `_predictor` instead
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.890 INFO [stderr] warning: unused variable: `predictor`
Dec 04 07:45:58.890 INFO [stderr]    --> src/snake_nn.rs:109:18
Dec 04 07:45:58.890 INFO [stderr]     |
Dec 04 07:45:58.890 INFO [stderr] 109 |     let (params, predictor, _) = parallel_trainer.borrow_network_parts();
Dec 04 07:45:58.890 INFO [stderr]     |                  ^^^^^^^^^ help: consider using `_predictor` instead
Dec 04 07:45:58.890 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `max_gain`
Dec 04 07:45:58.891 INFO [stderr]    --> src/snake_nn.rs:357:13
Dec 04 07:45:58.891 INFO [stderr]     |
Dec 04 07:45:58.891 INFO [stderr] 357 |     let (i, max_gain) = get_max_with_pos(snake_inputs_gains.as_slice());
Dec 04 07:45:58.891 INFO [stderr]     |             ^^^^^^^^ help: consider using `_max_gain` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `is_next_action_optimal`
Dec 04 07:45:58.891 INFO [stderr]    --> src/snake_nn.rs:503:13
Dec 04 07:45:58.891 INFO [stderr]     |
Dec 04 07:45:58.891 INFO [stderr] 503 |         let is_next_action_optimal = session[i - 1].is_optimal;
Dec 04 07:45:58.891 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: consider using `_is_next_action_optimal` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `i`
Dec 04 07:45:58.891 INFO [stderr]    --> src/snake_nn.rs:530:9
Dec 04 07:45:58.891 INFO [stderr]     |
Dec 04 07:45:58.891 INFO [stderr] 530 |     for i in 0..MAP_WIDTH * MAP_HEIGHT - 1 {
Dec 04 07:45:58.891 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:58.891 INFO [stderr]   --> src/main.rs:53:24
Dec 04 07:45:58.891 INFO [stderr]    |
Dec 04 07:45:58.891 INFO [stderr] 53 | fn execute_mnist_train(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:58.891 INFO [stderr]    |                        ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:58.891 INFO [stderr]   --> src/main.rs:68:22
Dec 04 07:45:58.891 INFO [stderr]    |
Dec 04 07:45:58.891 INFO [stderr] 68 | fn execute_snake_new(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:58.891 INFO [stderr]    |                      ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:58.891 INFO [stderr]   --> src/main.rs:73:24
Dec 04 07:45:58.891 INFO [stderr]    |
Dec 04 07:45:58.891 INFO [stderr] 73 | fn execute_snake_train(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:58.891 INFO [stderr]    |                        ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:58.891 INFO [stderr]   --> src/main.rs:93:22
Dec 04 07:45:58.891 INFO [stderr]    |
Dec 04 07:45:58.891 INFO [stderr] 93 | fn execute_snake_gen(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:58.891 INFO [stderr]    |                      ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.891 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:58.891 INFO [stderr]    --> src/main.rs:101:23
Dec 04 07:45:58.891 INFO [stderr]     |
Dec 04 07:45:58.891 INFO [stderr] 101 | fn execute_snake_demo(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:58.891 INFO [stderr]     |                       ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:58.891 INFO [stderr] 
Dec 04 07:45:58.899 INFO [stderr] warning: unused variable: `thread_no`
Dec 04 07:45:58.899 INFO [stderr]   --> src/parallel_trainer.rs:46:13
Dec 04 07:45:58.899 INFO [stderr]    |
Dec 04 07:45:58.899 INFO [stderr] 46 |         for thread_no in 0..num_threads {
Dec 04 07:45:58.899 INFO [stderr]    |             ^^^^^^^^^ help: consider using `_thread_no` instead
Dec 04 07:45:58.899 INFO [stderr] 
Dec 04 07:45:59.015 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.015 INFO [stderr]   --> src/mnist.rs:64:9
Dec 04 07:45:59.015 INFO [stderr]    |
Dec 04 07:45:59.015 INFO [stderr] 64 |     let mut hits = 0usize;
Dec 04 07:45:59.015 INFO [stderr]    |         ----^^^^
Dec 04 07:45:59.015 INFO [stderr]    |         |
Dec 04 07:45:59.015 INFO [stderr]    |         help: remove this `mut`
Dec 04 07:45:59.015 INFO [stderr]    |
Dec 04 07:45:59.015 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 07:45:59.015 INFO [stderr] 
Dec 04 07:45:59.043 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.043 INFO [stderr]   --> src/network.rs:55:13
Dec 04 07:45:59.043 INFO [stderr]    |
Dec 04 07:45:59.043 INFO [stderr] 55 |         let mut nn: Self = serde_json::from_reader(&file).unwrap();
Dec 04 07:45:59.043 INFO [stderr]    |             ----^^
Dec 04 07:45:59.043 INFO [stderr]    |             |
Dec 04 07:45:59.043 INFO [stderr]    |             help: remove this `mut`
Dec 04 07:45:59.043 INFO [stderr] 
Dec 04 07:45:59.119 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.119 INFO [stderr]   --> src/parallel_trainer.rs:37:51
Dec 04 07:45:59.119 INFO [stderr]    |
Dec 04 07:45:59.119 INFO [stderr] 37 |         let (mut nn_parameters, mut nn_predictor, mut nn_trainer) = network.as_parts();
Dec 04 07:45:59.119 INFO [stderr]    |                                                   ----^^^^^^^^^^
Dec 04 07:45:59.119 INFO [stderr]    |                                                   |
Dec 04 07:45:59.119 INFO [stderr]    |                                                   help: remove this `mut`
Dec 04 07:45:59.119 INFO [stderr] 
Dec 04 07:45:59.119 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.119 INFO [stderr]   --> src/parallel_trainer.rs:37:33
Dec 04 07:45:59.119 INFO [stderr]    |
Dec 04 07:45:59.119 INFO [stderr] 37 |         let (mut nn_parameters, mut nn_predictor, mut nn_trainer) = network.as_parts();
Dec 04 07:45:59.120 INFO [stderr]    |                                 ----^^^^^^^^^^^^
Dec 04 07:45:59.120 INFO [stderr]    |                                 |
Dec 04 07:45:59.120 INFO [stderr]    |                                 help: remove this `mut`
Dec 04 07:45:59.120 INFO [stderr] 
Dec 04 07:45:59.120 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.120 INFO [stderr]   --> src/parallel_trainer.rs:37:14
Dec 04 07:45:59.120 INFO [stderr]    |
Dec 04 07:45:59.120 INFO [stderr] 37 |         let (mut nn_parameters, mut nn_predictor, mut nn_trainer) = network.as_parts();
Dec 04 07:45:59.120 INFO [stderr]    |              ----^^^^^^^^^^^^^
Dec 04 07:45:59.120 INFO [stderr]    |              |
Dec 04 07:45:59.120 INFO [stderr]    |              help: remove this `mut`
Dec 04 07:45:59.120 INFO [stderr] 
Dec 04 07:45:59.129 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.129 INFO [stderr]    --> src/parallel_trainer.rs:123:5
Dec 04 07:45:59.129 INFO [stderr]     |
Dec 04 07:45:59.129 INFO [stderr] 123 |     mut job_receiver: Arc<Mutex<Receiver<TrainingJob>>>,
Dec 04 07:45:59.129 INFO [stderr]     |     ----^^^^^^^^^^^^
Dec 04 07:45:59.129 INFO [stderr]     |     |
Dec 04 07:45:59.129 INFO [stderr]     |     help: remove this `mut`
Dec 04 07:45:59.129 INFO [stderr] 
Dec 04 07:45:59.129 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.129 INFO [stderr]    --> src/parallel_trainer.rs:124:5
Dec 04 07:45:59.129 INFO [stderr]     |
Dec 04 07:45:59.129 INFO [stderr] 124 |     mut output_sender: Sender<Arc<Mutex<NetworkTrainer>>>,
Dec 04 07:45:59.129 INFO [stderr]     |     ----^^^^^^^^^^^^^
Dec 04 07:45:59.129 INFO [stderr]     |     |
Dec 04 07:45:59.129 INFO [stderr]     |     help: remove this `mut`
Dec 04 07:45:59.129 INFO [stderr] 
Dec 04 07:45:59.129 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.129 INFO [stderr]    --> src/parallel_trainer.rs:126:5
Dec 04 07:45:59.129 INFO [stderr]     |
Dec 04 07:45:59.129 INFO [stderr] 126 |     mut local_nn_trainer: Arc<Mutex<NetworkTrainer>>,
Dec 04 07:45:59.129 INFO [stderr]     |     ----^^^^^^^^^^^^^^^^
Dec 04 07:45:59.129 INFO [stderr]     |     |
Dec 04 07:45:59.129 INFO [stderr]     |     help: remove this `mut`
Dec 04 07:45:59.129 INFO [stderr] 
Dec 04 07:45:59.191 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.191 INFO [stderr]   --> src/snake_nn.rs:57:9
Dec 04 07:45:59.191 INFO [stderr]    |
Dec 04 07:45:59.191 INFO [stderr] 57 |     let mut nn = network::Network::load_from_file(model_input_path);
Dec 04 07:45:59.191 INFO [stderr]    |         ----^^
Dec 04 07:45:59.191 INFO [stderr]    |         |
Dec 04 07:45:59.191 INFO [stderr]    |         help: remove this `mut`
Dec 04 07:45:59.191 INFO [stderr] 
Dec 04 07:45:59.203 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.203 INFO [stderr]    --> src/snake_nn.rs:131:21
Dec 04 07:45:59.203 INFO [stderr]     |
Dec 04 07:45:59.203 INFO [stderr] 131 |                 let mut state = GameState {
Dec 04 07:45:59.203 INFO [stderr]     |                     ----^^^^^
Dec 04 07:45:59.203 INFO [stderr]     |                     |
Dec 04 07:45:59.203 INFO [stderr]     |                     help: remove this `mut`
Dec 04 07:45:59.203 INFO [stderr] 
Dec 04 07:45:59.203 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.203 INFO [stderr]    --> src/snake_nn.rs:115:9
Dec 04 07:45:59.203 INFO [stderr]     |
Dec 04 07:45:59.203 INFO [stderr] 115 |     let mut nn = network::Network::load_from_file(model_path);
Dec 04 07:45:59.203 INFO [stderr]     |         ----^^
Dec 04 07:45:59.203 INFO [stderr]     |         |
Dec 04 07:45:59.203 INFO [stderr]     |         help: remove this `mut`
Dec 04 07:45:59.203 INFO [stderr] 
Dec 04 07:45:59.259 INFO [stderr] warning: method is never used: `new_same_dim`
Dec 04 07:45:59.259 INFO [stderr]   --> src/math.rs:21:5
Dec 04 07:45:59.259 INFO [stderr]    |
Dec 04 07:45:59.259 INFO [stderr] 21 |     pub fn new_same_dim(m: &Matrix) -> Self {
Dec 04 07:45:59.259 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.259 INFO [stderr]    |
Dec 04 07:45:59.259 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 07:45:59.259 INFO [stderr] 
Dec 04 07:45:59.259 INFO [stderr] warning: method is never used: `from_slice`
Dec 04 07:45:59.259 INFO [stderr]   --> src/math.rs:27:5
Dec 04 07:45:59.259 INFO [stderr]    |
Dec 04 07:45:59.259 INFO [stderr] 27 |     pub fn from_slice(rows: usize, cols: usize, content: &[f64]) -> Self {
Dec 04 07:45:59.259 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.259 INFO [stderr] 
Dec 04 07:45:59.259 INFO [stderr] warning: method is never used: `dot_vec`
Dec 04 07:45:59.259 INFO [stderr]   --> src/math.rs:71:5
Dec 04 07:45:59.259 INFO [stderr]    |
Dec 04 07:45:59.260 INFO [stderr] 71 |     pub fn dot_vec(&self, vec: &Vector, res: &mut Vector) {
Dec 04 07:45:59.260 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `transpose`
Dec 04 07:45:59.260 INFO [stderr]    --> src/math.rs:155:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 155 |     pub fn transpose(&self, res: &mut Matrix) {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `from_slice`
Dec 04 07:45:59.260 INFO [stderr]    --> src/math.rs:241:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 241 |     pub fn from_slice(content: &[f64]) -> Self {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `empty`
Dec 04 07:45:59.260 INFO [stderr]    --> src/math.rs:248:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 248 |     pub fn empty() -> Self {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `init_rand`
Dec 04 07:45:59.260 INFO [stderr]    --> src/math.rs:267:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 267 |     pub fn init_rand(mut self) -> Self {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `copy_from`
Dec 04 07:45:59.260 INFO [stderr]    --> src/math.rs:286:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 286 |     pub fn copy_from(&mut self, v: &Vector) {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `add`
Dec 04 07:45:59.260 INFO [stderr]    --> src/math.rs:322:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 322 |     pub fn add(&mut self, v: &Vector) {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `fill_rand`
Dec 04 07:45:59.260 INFO [stderr]    --> src/math.rs:335:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 335 |     pub fn fill_rand(&mut self) {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: constant item is never used: `NANOS_IN_SECOND`
Dec 04 07:45:59.260 INFO [stderr]   --> src/mnist.rs:28:1
Dec 04 07:45:59.260 INFO [stderr]    |
Dec 04 07:45:59.260 INFO [stderr] 28 | const NANOS_IN_SECOND: u64 = 1_000_000_000;
Dec 04 07:45:59.260 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `get_layer_mut`
Dec 04 07:45:59.260 INFO [stderr]   --> src/network.rs:46:5
Dec 04 07:45:59.260 INFO [stderr]    |
Dec 04 07:45:59.260 INFO [stderr] 46 |     fn get_layer_mut(&mut self, id: LayerID) -> &mut Layer {
Dec 04 07:45:59.260 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `calc_layers_order`
Dec 04 07:45:59.260 INFO [stderr]    --> src/network.rs:462:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 462 |     fn calc_layers_order(&self) -> Vec<LayerID> {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `predict`
Dec 04 07:45:59.260 INFO [stderr]    --> src/network.rs:466:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 466 |     pub fn predict(&mut self, input_data: &[f64]) -> &Vector {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `backward_propagation`
Dec 04 07:45:59.260 INFO [stderr]    --> src/network.rs:470:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 470 |     pub fn backward_propagation(&mut self, true_outputs: &Vector) {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: method is never used: `apply_batch`
Dec 04 07:45:59.260 INFO [stderr]    --> src/network.rs:530:5
Dec 04 07:45:59.260 INFO [stderr]     |
Dec 04 07:45:59.260 INFO [stderr] 530 |     pub fn apply_batch(&mut self) {
Dec 04 07:45:59.260 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: field is never used: `shared_training_data`
Dec 04 07:45:59.260 INFO [stderr]   --> src/parallel_trainer.rs:22:5
Dec 04 07:45:59.260 INFO [stderr]    |
Dec 04 07:45:59.260 INFO [stderr] 22 |     shared_training_data: Arc<D>,
Dec 04 07:45:59.260 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.260 INFO [stderr] 
Dec 04 07:45:59.260 INFO [stderr] warning: field is never used: `job_receiver`
Dec 04 07:45:59.261 INFO [stderr]   --> src/parallel_trainer.rs:29:5
Dec 04 07:45:59.261 INFO [stderr]    |
Dec 04 07:45:59.261 INFO [stderr] 29 |     job_receiver: Arc<Mutex<Receiver<TrainingJob>>>,
Dec 04 07:45:59.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.261 INFO [stderr] 
Dec 04 07:45:59.261 INFO [stderr] warning: field is never used: `output_sender`
Dec 04 07:45:59.261 INFO [stderr]   --> src/parallel_trainer.rs:30:5
Dec 04 07:45:59.261 INFO [stderr]    |
Dec 04 07:45:59.261 INFO [stderr] 30 |     output_sender: Sender<Arc<Mutex<NetworkTrainer>>>,
Dec 04 07:45:59.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.261 INFO [stderr] 
Dec 04 07:45:59.261 INFO [stderr] warning: field is never used: `join_handles`
Dec 04 07:45:59.261 INFO [stderr]   --> src/parallel_trainer.rs:32:5
Dec 04 07:45:59.261 INFO [stderr]    |
Dec 04 07:45:59.261 INFO [stderr] 32 |     join_handles: Vec<JoinHandle<()>>,
Dec 04 07:45:59.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.261 INFO [stderr] 
Dec 04 07:45:59.261 INFO [stderr] warning: function is never used: `teach_nn`
Dec 04 07:45:59.261 INFO [stderr]    --> src/snake_nn.rs:384:1
Dec 04 07:45:59.261 INFO [stderr]     |
Dec 04 07:45:59.261 INFO [stderr] 384 | / fn teach_nn(
Dec 04 07:45:59.261 INFO [stderr] 385 | |     nn: &mut network::Network,
Dec 04 07:45:59.261 INFO [stderr] 386 | |     state: &GameState,
Dec 04 07:45:59.261 INFO [stderr] 387 | |     snake_input: SnakeInput,
Dec 04 07:45:59.261 INFO [stderr] ...   |
Dec 04 07:45:59.261 INFO [stderr] 398 | |     nn.backward_propagation(&true_output_vec);
Dec 04 07:45:59.261 INFO [stderr] 399 | | }
Dec 04 07:45:59.261 INFO [stderr]     | |_^
Dec 04 07:45:59.261 INFO [stderr] 
Dec 04 07:45:59.261 INFO [stderr] warning: method is never used: `elapsed`
Dec 04 07:45:59.261 INFO [stderr]   --> src/timing.rs:46:5
Dec 04 07:45:59.261 INFO [stderr]    |
Dec 04 07:45:59.261 INFO [stderr] 46 |     pub fn elapsed(&self, name: &str) -> time::Duration {
Dec 04 07:45:59.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.261 INFO [stderr] 
Dec 04 07:45:59.285 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.285 INFO [stderr]   --> src/parallel_trainer.rs:85:13
Dec 04 07:45:59.285 INFO [stderr]    |
Dec 04 07:45:59.285 INFO [stderr] 85 | /             self.job_sender.send(TrainingJob {
Dec 04 07:45:59.285 INFO [stderr] 86 | |                 examples_indices: chunk,
Dec 04 07:45:59.285 INFO [stderr] 87 | |                 network_parameters: self.shared_nn_parameters.clone(),
Dec 04 07:45:59.285 INFO [stderr] 88 | |             });
Dec 04 07:45:59.285 INFO [stderr]    | |_______________^
Dec 04 07:45:59.285 INFO [stderr]    |
Dec 04 07:45:59.285 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:45:59.285 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.285 INFO [stderr] 
Dec 04 07:45:59.285 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.285 INFO [stderr]    --> src/parallel_trainer.rs:160:9
Dec 04 07:45:59.285 INFO [stderr]     |
Dec 04 07:45:59.285 INFO [stderr] 160 |         output_sender.send(local_nn_trainer.clone());
Dec 04 07:45:59.285 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.285 INFO [stderr]     |
Dec 04 07:45:59.285 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.285 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake.rs:118:9
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 118 |         writer.write("\n".as_bytes());
Dec 04 07:45:59.295 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake.rs:120:5
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 120 |     writer.flush();
Dec 04 07:45:59.295 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake.rs:131:5
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 131 |     writer.write(character.as_bytes());
Dec 04 07:45:59.295 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake_nn.rs:140:21
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 140 |                     write!(training_data_file, "\n");
Dec 04 07:45:59.295 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.295 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake_nn.rs:150:9
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 150 |         jh.join();
Dec 04 07:45:59.295 INFO [stderr]     |         ^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: the `game_over:` in this pattern is redundant
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake_nn.rs:203:17
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 203 |                 game_over: game_over,
Dec 04 07:45:59.295 INFO [stderr]     |                 ----------^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |                 |
Dec 04 07:45:59.295 INFO [stderr]     |                 help: remove this
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr]     = note: #[warn(non_shorthand_field_patterns)] on by default
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: the `game_over:` in this pattern is redundant
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake_nn.rs:271:13
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 271 |             game_over: game_over,
Dec 04 07:45:59.295 INFO [stderr]     |             ----------^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |             |
Dec 04 07:45:59.295 INFO [stderr]     |             help: remove this
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: the `game_over:` in this pattern is redundant
Dec 04 07:45:59.295 INFO [stderr]    --> src/snake_nn.rs:308:17
Dec 04 07:45:59.295 INFO [stderr]     |
Dec 04 07:45:59.295 INFO [stderr] 308 |                 game_over: game_over,
Dec 04 07:45:59.295 INFO [stderr]     |                 ----------^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]     |                 |
Dec 04 07:45:59.295 INFO [stderr]     |                 help: remove this
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: unused attribute
Dec 04 07:45:59.295 INFO [stderr]  --> src/snake_nn.rs:1:1
Dec 04 07:45:59.295 INFO [stderr]   |
Dec 04 07:45:59.295 INFO [stderr] 1 | #![feature(test)]
Dec 04 07:45:59.295 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr]   |
Dec 04 07:45:59.295 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 04 07:45:59.295 INFO [stderr]  --> src/snake_nn.rs:1:1
Dec 04 07:45:59.295 INFO [stderr]   |
Dec 04 07:45:59.295 INFO [stderr] 1 | #![feature(test)]
Dec 04 07:45:59.295 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.295 INFO [stderr] 
Dec 04 07:45:59.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.295 INFO [stderr]   --> src/timing.rs:75:9
Dec 04 07:45:59.295 INFO [stderr]    |
Dec 04 07:45:59.295 INFO [stderr] 75 |         writeln!(f, "=== Timing ===");
Dec 04 07:45:59.295 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.296 INFO [stderr]    |
Dec 04 07:45:59.296 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.296 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 07:45:59.296 INFO [stderr] 
Dec 04 07:45:59.296 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.296 INFO [stderr]   --> src/timing.rs:77:13
Dec 04 07:45:59.296 INFO [stderr]    |
Dec 04 07:45:59.296 INFO [stderr] 77 | /             writeln!(
Dec 04 07:45:59.296 INFO [stderr] 78 | |                 f,
Dec 04 07:45:59.296 INFO [stderr] 79 | |                 "{}: {}.{:04}s",
Dec 04 07:45:59.296 INFO [stderr] 80 | |                 name,
Dec 04 07:45:59.296 INFO [stderr] 81 | |                 timer.duration.as_secs(),
Dec 04 07:45:59.296 INFO [stderr] 82 | |                 timer.duration.subsec_nanos() / 1000000
Dec 04 07:45:59.296 INFO [stderr] 83 | |             );
Dec 04 07:45:59.296 INFO [stderr]    | |______________^
Dec 04 07:45:59.296 INFO [stderr] warning: unused import: `rand::Rng`
Dec 04 07:45:59.296 INFO [stderr]  --> src/snake.rs:1:5
Dec 04 07:45:59.296 INFO [stderr]   |
Dec 04 07:45:59.296 INFO [stderr] 1 | use rand::Rng;
Dec 04 07:45:59.296 INFO [stderr]   |     ^^^^^^^^^
Dec 04 07:45:59.296 INFO [stderr] 
Dec 04 07:45:59.296 INFO [stderr]    |
Dec 04 07:45:59.296 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.296 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 07:45:59.296 INFO [stderr] 
Dec 04 07:45:59.399 INFO [stderr] warning: unused variable: `hits`
Dec 04 07:45:59.399 INFO [stderr]   --> src/mnist.rs:64:13
Dec 04 07:45:59.399 INFO [stderr]    |
Dec 04 07:45:59.399 INFO [stderr] 64 |     let mut hits = 0usize;
Dec 04 07:45:59.399 INFO [stderr]    |             ^^^^ help: consider using `_hits` instead
Dec 04 07:45:59.399 INFO [stderr]    |
Dec 04 07:45:59.399 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:45:59.399 INFO [stderr] 
Dec 04 07:45:59.399 INFO [stderr] warning: unused variable: `predictor`
Dec 04 07:45:59.399 INFO [stderr]   --> src/mnist.rs:98:30
Dec 04 07:45:59.399 INFO [stderr]    |
Dec 04 07:45:59.399 INFO [stderr] 98 |                 let (params, predictor, _) = parallel_trainer.borrow_network_parts();
Dec 04 07:45:59.399 INFO [stderr]    |                              ^^^^^^^^^ help: consider using `_predictor` instead
Dec 04 07:45:59.399 INFO [stderr] 
Dec 04 07:45:59.399 INFO [stderr] warning: unused variable: `log_every_n`
Dec 04 07:45:59.399 INFO [stderr]   --> src/mnist.rs:35:5
Dec 04 07:45:59.399 INFO [stderr]    |
Dec 04 07:45:59.399 INFO [stderr] 35 |     log_every_n: usize,
Dec 04 07:45:59.399 INFO [stderr]    |     ^^^^^^^^^^^ help: consider using `_log_every_n` instead
Dec 04 07:45:59.399 INFO [stderr] 
Dec 04 07:45:59.399 INFO [stderr] warning: unused variable: `outputs`
Dec 04 07:45:59.399 INFO [stderr]    --> src/parallel_trainer.rs:150:21
Dec 04 07:45:59.399 INFO [stderr]     |
Dec 04 07:45:59.399 INFO [stderr] 150 |                 let outputs = local_nn_predictor
Dec 04 07:45:59.399 INFO [stderr]     |                     ^^^^^^^ help: consider using `_outputs` instead
Dec 04 07:45:59.399 INFO [stderr] 
Dec 04 07:45:59.399 INFO [stderr] warning: unused variable: `iters`
Dec 04 07:45:59.399 INFO [stderr]    --> src/snake.rs:168:21
Dec 04 07:45:59.399 INFO [stderr]     |
Dec 04 07:45:59.399 INFO [stderr] 168 |             let mut iters = 0;
Dec 04 07:45:59.399 INFO [stderr]     |                     ^^^^^ help: consider using `_iters` instead
Dec 04 07:45:59.399 INFO [stderr] 
Dec 04 07:45:59.399 INFO [stderr] warning: unused variable: `epoch_no`
Dec 04 07:45:59.399 INFO [stderr]   --> src/snake_nn.rs:73:9
Dec 04 07:45:59.399 INFO [stderr]    |
Dec 04 07:45:59.399 INFO [stderr] 73 |     for epoch_no in 0..num_epochs {
Dec 04 07:45:59.399 INFO [stderr]    |         ^^^^^^^^ help: consider using `_epoch_no` instead
Dec 04 07:45:59.399 INFO [stderr] 
Dec 04 07:45:59.399 INFO [stderr] warning: unused variable: `predictor`
Dec 04 07:45:59.399 INFO [stderr]   --> src/snake_nn.rs:90:30
Dec 04 07:45:59.400 INFO [stderr]    |
Dec 04 07:45:59.400 INFO [stderr] 90 |                 let (params, predictor, _) = parallel_trainer.borrow_network_parts();
Dec 04 07:45:59.400 INFO [stderr]    |                              ^^^^^^^^^ help: consider using `_predictor` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `predictor`
Dec 04 07:45:59.400 INFO [stderr]    --> src/snake_nn.rs:109:18
Dec 04 07:45:59.400 INFO [stderr]     |
Dec 04 07:45:59.400 INFO [stderr] 109 |     let (params, predictor, _) = parallel_trainer.borrow_network_parts();
Dec 04 07:45:59.400 INFO [stderr]     |                  ^^^^^^^^^ help: consider using `_predictor` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `max_gain`
Dec 04 07:45:59.400 INFO [stderr]    --> src/snake_nn.rs:357:13
Dec 04 07:45:59.400 INFO [stderr]     |
Dec 04 07:45:59.400 INFO [stderr] 357 |     let (i, max_gain) = get_max_with_pos(snake_inputs_gains.as_slice());
Dec 04 07:45:59.400 INFO [stderr]     |             ^^^^^^^^ help: consider using `_max_gain` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `is_next_action_optimal`
Dec 04 07:45:59.400 INFO [stderr]    --> src/snake_nn.rs:503:13
Dec 04 07:45:59.400 INFO [stderr]     |
Dec 04 07:45:59.400 INFO [stderr] 503 |         let is_next_action_optimal = session[i - 1].is_optimal;
Dec 04 07:45:59.400 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: consider using `_is_next_action_optimal` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `i`
Dec 04 07:45:59.400 INFO [stderr]    --> src/snake_nn.rs:530:9
Dec 04 07:45:59.400 INFO [stderr]     |
Dec 04 07:45:59.400 INFO [stderr] 530 |     for i in 0..MAP_WIDTH * MAP_HEIGHT - 1 {
Dec 04 07:45:59.400 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:59.400 INFO [stderr]   --> src/main.rs:53:24
Dec 04 07:45:59.400 INFO [stderr]    |
Dec 04 07:45:59.400 INFO [stderr] 53 | fn execute_mnist_train(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:59.400 INFO [stderr]    |                        ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:59.400 INFO [stderr]   --> src/main.rs:68:22
Dec 04 07:45:59.400 INFO [stderr]    |
Dec 04 07:45:59.400 INFO [stderr] 68 | fn execute_snake_new(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:59.400 INFO [stderr]    |                      ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:59.400 INFO [stderr]   --> src/main.rs:73:24
Dec 04 07:45:59.400 INFO [stderr]    |
Dec 04 07:45:59.400 INFO [stderr] 73 | fn execute_snake_train(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:59.400 INFO [stderr]    |                        ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:59.400 INFO [stderr]   --> src/main.rs:93:22
Dec 04 07:45:59.400 INFO [stderr]    |
Dec 04 07:45:59.400 INFO [stderr] 93 | fn execute_snake_gen(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:59.400 INFO [stderr]    |                      ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `matches`
Dec 04 07:45:59.400 INFO [stderr]    --> src/main.rs:101:23
Dec 04 07:45:59.400 INFO [stderr]     |
Dec 04 07:45:59.400 INFO [stderr] 101 | fn execute_snake_demo(matches: &ArgMatches, submatches: &ArgMatches) {
Dec 04 07:45:59.400 INFO [stderr]     |                       ^^^^^^^ help: consider using `_matches` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `layer_order`
Dec 04 07:45:59.400 INFO [stderr]    --> src/network.rs:645:13
Dec 04 07:45:59.400 INFO [stderr]     |
Dec 04 07:45:59.400 INFO [stderr] 645 |         let layer_order = nn.calc_layers_order();
Dec 04 07:45:59.400 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_layer_order` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.400 INFO [stderr] warning: unused variable: `thread_no`
Dec 04 07:45:59.400 INFO [stderr]   --> src/parallel_trainer.rs:46:13
Dec 04 07:45:59.400 INFO [stderr]    |
Dec 04 07:45:59.400 INFO [stderr] 46 |         for thread_no in 0..num_threads {
Dec 04 07:45:59.400 INFO [stderr]    |             ^^^^^^^^^ help: consider using `_thread_no` instead
Dec 04 07:45:59.400 INFO [stderr] 
Dec 04 07:45:59.490 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.490 INFO [stderr]   --> src/mnist.rs:64:9
Dec 04 07:45:59.490 INFO [stderr]    |
Dec 04 07:45:59.490 INFO [stderr] 64 |     let mut hits = 0usize;
Dec 04 07:45:59.490 INFO [stderr]    |         ----^^^^
Dec 04 07:45:59.490 INFO [stderr]    |         |
Dec 04 07:45:59.490 INFO [stderr]    |         help: remove this `mut`
Dec 04 07:45:59.490 INFO [stderr]    |
Dec 04 07:45:59.490 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 07:45:59.490 INFO [stderr] 
Dec 04 07:45:59.511 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.511 INFO [stderr]   --> src/network.rs:55:13
Dec 04 07:45:59.511 INFO [stderr]    |
Dec 04 07:45:59.511 INFO [stderr] 55 |         let mut nn: Self = serde_json::from_reader(&file).unwrap();
Dec 04 07:45:59.511 INFO [stderr]    |             ----^^
Dec 04 07:45:59.511 INFO [stderr]    |             |
Dec 04 07:45:59.511 INFO [stderr]    |             help: remove this `mut`
Dec 04 07:45:59.511 INFO [stderr] 
Dec 04 07:45:59.585 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.585 INFO [stderr]   --> src/parallel_trainer.rs:37:51
Dec 04 07:45:59.585 INFO [stderr]    |
Dec 04 07:45:59.585 INFO [stderr] 37 |         let (mut nn_parameters, mut nn_predictor, mut nn_trainer) = network.as_parts();
Dec 04 07:45:59.585 INFO [stderr]    |                                                   ----^^^^^^^^^^
Dec 04 07:45:59.585 INFO [stderr]    |                                                   |
Dec 04 07:45:59.585 INFO [stderr]    |                                                   help: remove this `mut`
Dec 04 07:45:59.585 INFO [stderr] 
Dec 04 07:45:59.585 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.586 INFO [stderr]   --> src/parallel_trainer.rs:37:33
Dec 04 07:45:59.586 INFO [stderr]    |
Dec 04 07:45:59.586 INFO [stderr] 37 |         let (mut nn_parameters, mut nn_predictor, mut nn_trainer) = network.as_parts();
Dec 04 07:45:59.586 INFO [stderr]    |                                 ----^^^^^^^^^^^^
Dec 04 07:45:59.586 INFO [stderr]    |                                 |
Dec 04 07:45:59.586 INFO [stderr]    |                                 help: remove this `mut`
Dec 04 07:45:59.586 INFO [stderr] 
Dec 04 07:45:59.586 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.586 INFO [stderr]   --> src/parallel_trainer.rs:37:14
Dec 04 07:45:59.586 INFO [stderr]    |
Dec 04 07:45:59.586 INFO [stderr] 37 |         let (mut nn_parameters, mut nn_predictor, mut nn_trainer) = network.as_parts();
Dec 04 07:45:59.586 INFO [stderr]    |              ----^^^^^^^^^^^^^
Dec 04 07:45:59.586 INFO [stderr]    |              |
Dec 04 07:45:59.586 INFO [stderr]    |              help: remove this `mut`
Dec 04 07:45:59.586 INFO [stderr] 
Dec 04 07:45:59.593 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.594 INFO [stderr]    --> src/parallel_trainer.rs:123:5
Dec 04 07:45:59.594 INFO [stderr]     |
Dec 04 07:45:59.594 INFO [stderr] 123 |     mut job_receiver: Arc<Mutex<Receiver<TrainingJob>>>,
Dec 04 07:45:59.594 INFO [stderr]     |     ----^^^^^^^^^^^^
Dec 04 07:45:59.594 INFO [stderr]     |     |
Dec 04 07:45:59.594 INFO [stderr]     |     help: remove this `mut`
Dec 04 07:45:59.594 INFO [stderr] 
Dec 04 07:45:59.594 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.594 INFO [stderr]    --> src/parallel_trainer.rs:124:5
Dec 04 07:45:59.594 INFO [stderr]     |
Dec 04 07:45:59.594 INFO [stderr] 124 |     mut output_sender: Sender<Arc<Mutex<NetworkTrainer>>>,
Dec 04 07:45:59.594 INFO [stderr]     |     ----^^^^^^^^^^^^^
Dec 04 07:45:59.594 INFO [stderr]     |     |
Dec 04 07:45:59.594 INFO [stderr]     |     help: remove this `mut`
Dec 04 07:45:59.594 INFO [stderr] 
Dec 04 07:45:59.594 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.594 INFO [stderr]    --> src/parallel_trainer.rs:126:5
Dec 04 07:45:59.594 INFO [stderr]     |
Dec 04 07:45:59.594 INFO [stderr] 126 |     mut local_nn_trainer: Arc<Mutex<NetworkTrainer>>,
Dec 04 07:45:59.594 INFO [stderr]     |     ----^^^^^^^^^^^^^^^^
Dec 04 07:45:59.594 INFO [stderr]     |     |
Dec 04 07:45:59.594 INFO [stderr]     |     help: remove this `mut`
Dec 04 07:45:59.594 INFO [stderr] 
Dec 04 07:45:59.666 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.666 INFO [stderr]   --> src/snake_nn.rs:57:9
Dec 04 07:45:59.666 INFO [stderr]    |
Dec 04 07:45:59.666 INFO [stderr] 57 |     let mut nn = network::Network::load_from_file(model_input_path);
Dec 04 07:45:59.666 INFO [stderr]    |         ----^^
Dec 04 07:45:59.666 INFO [stderr]    |         |
Dec 04 07:45:59.666 INFO [stderr]    |         help: remove this `mut`
Dec 04 07:45:59.666 INFO [stderr] 
Dec 04 07:45:59.667 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.667 INFO [stderr]    --> src/snake_nn.rs:131:21
Dec 04 07:45:59.667 INFO [stderr]     |
Dec 04 07:45:59.667 INFO [stderr] 131 |                 let mut state = GameState {
Dec 04 07:45:59.667 INFO [stderr]     |                     ----^^^^^
Dec 04 07:45:59.667 INFO [stderr]     |                     |
Dec 04 07:45:59.667 INFO [stderr]     |                     help: remove this `mut`
Dec 04 07:45:59.667 INFO [stderr] 
Dec 04 07:45:59.667 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:45:59.667 INFO [stderr]    --> src/snake_nn.rs:115:9
Dec 04 07:45:59.667 INFO [stderr]     |
Dec 04 07:45:59.667 INFO [stderr] 115 |     let mut nn = network::Network::load_from_file(model_path);
Dec 04 07:45:59.667 INFO [stderr]     |         ----^^
Dec 04 07:45:59.667 INFO [stderr]     |         |
Dec 04 07:45:59.667 INFO [stderr]     |         help: remove this `mut`
Dec 04 07:45:59.667 INFO [stderr] 
Dec 04 07:45:59.703 INFO [stderr] warning: method is never used: `new_same_dim`
Dec 04 07:45:59.703 INFO [stderr]   --> src/math.rs:21:5
Dec 04 07:45:59.703 INFO [stderr]    |
Dec 04 07:45:59.703 INFO [stderr] 21 |     pub fn new_same_dim(m: &Matrix) -> Self {
Dec 04 07:45:59.703 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.703 INFO [stderr]    |
Dec 04 07:45:59.703 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 07:45:59.703 INFO [stderr] 
Dec 04 07:45:59.703 INFO [stderr] warning: method is never used: `dot_vec`
Dec 04 07:45:59.703 INFO [stderr]   --> src/math.rs:71:5
Dec 04 07:45:59.703 INFO [stderr]    |
Dec 04 07:45:59.703 INFO [stderr] 71 |     pub fn dot_vec(&self, vec: &Vector, res: &mut Vector) {
Dec 04 07:45:59.703 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.703 INFO [stderr] 
Dec 04 07:45:59.703 INFO [stderr] warning: method is never used: `empty`
Dec 04 07:45:59.704 INFO [stderr]    --> src/math.rs:248:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 248 |     pub fn empty() -> Self {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `init_rand`
Dec 04 07:45:59.704 INFO [stderr]    --> src/math.rs:267:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 267 |     pub fn init_rand(mut self) -> Self {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `copy_from`
Dec 04 07:45:59.704 INFO [stderr]    --> src/math.rs:286:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 286 |     pub fn copy_from(&mut self, v: &Vector) {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `add`
Dec 04 07:45:59.704 INFO [stderr]    --> src/math.rs:322:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 322 |     pub fn add(&mut self, v: &Vector) {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `fill_rand`
Dec 04 07:45:59.704 INFO [stderr]    --> src/math.rs:335:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 335 |     pub fn fill_rand(&mut self) {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: constant item is never used: `NANOS_IN_SECOND`
Dec 04 07:45:59.704 INFO [stderr]   --> src/mnist.rs:28:1
Dec 04 07:45:59.704 INFO [stderr]    |
Dec 04 07:45:59.704 INFO [stderr] 28 | const NANOS_IN_SECOND: u64 = 1_000_000_000;
Dec 04 07:45:59.704 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `get_layer_mut`
Dec 04 07:45:59.704 INFO [stderr]   --> src/network.rs:46:5
Dec 04 07:45:59.704 INFO [stderr]    |
Dec 04 07:45:59.704 INFO [stderr] 46 |     fn get_layer_mut(&mut self, id: LayerID) -> &mut Layer {
Dec 04 07:45:59.704 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `predict`
Dec 04 07:45:59.704 INFO [stderr]    --> src/network.rs:466:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 466 |     pub fn predict(&mut self, input_data: &[f64]) -> &Vector {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `backward_propagation`
Dec 04 07:45:59.704 INFO [stderr]    --> src/network.rs:470:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 470 |     pub fn backward_propagation(&mut self, true_outputs: &Vector) {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: method is never used: `apply_batch`
Dec 04 07:45:59.704 INFO [stderr]    --> src/network.rs:530:5
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 530 |     pub fn apply_batch(&mut self) {
Dec 04 07:45:59.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: field is never used: `shared_training_data`
Dec 04 07:45:59.704 INFO [stderr]   --> src/parallel_trainer.rs:22:5
Dec 04 07:45:59.704 INFO [stderr]    |
Dec 04 07:45:59.704 INFO [stderr] 22 |     shared_training_data: Arc<D>,
Dec 04 07:45:59.704 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: field is never used: `job_receiver`
Dec 04 07:45:59.704 INFO [stderr]   --> src/parallel_trainer.rs:29:5
Dec 04 07:45:59.704 INFO [stderr]    |
Dec 04 07:45:59.704 INFO [stderr] 29 |     job_receiver: Arc<Mutex<Receiver<TrainingJob>>>,
Dec 04 07:45:59.704 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: field is never used: `output_sender`
Dec 04 07:45:59.704 INFO [stderr]   --> src/parallel_trainer.rs:30:5
Dec 04 07:45:59.704 INFO [stderr]    |
Dec 04 07:45:59.704 INFO [stderr] 30 |     output_sender: Sender<Arc<Mutex<NetworkTrainer>>>,
Dec 04 07:45:59.704 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: field is never used: `join_handles`
Dec 04 07:45:59.704 INFO [stderr]   --> src/parallel_trainer.rs:32:5
Dec 04 07:45:59.704 INFO [stderr]    |
Dec 04 07:45:59.704 INFO [stderr] 32 |     join_handles: Vec<JoinHandle<()>>,
Dec 04 07:45:59.704 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.704 INFO [stderr] 
Dec 04 07:45:59.704 INFO [stderr] warning: function is never used: `teach_nn`
Dec 04 07:45:59.704 INFO [stderr]    --> src/snake_nn.rs:384:1
Dec 04 07:45:59.704 INFO [stderr]     |
Dec 04 07:45:59.704 INFO [stderr] 384 | / fn teach_nn(
Dec 04 07:45:59.704 INFO [stderr] 385 | |     nn: &mut network::Network,
Dec 04 07:45:59.704 INFO [stderr] 386 | |     state: &GameState,
Dec 04 07:45:59.704 INFO [stderr] 387 | |     snake_input: SnakeInput,
Dec 04 07:45:59.704 INFO [stderr] ...   |
Dec 04 07:45:59.705 INFO [stderr] 398 | |     nn.backward_propagation(&true_output_vec);
Dec 04 07:45:59.705 INFO [stderr] 399 | | }
Dec 04 07:45:59.705 INFO [stderr]     | |_^
Dec 04 07:45:59.705 INFO [stderr] 
Dec 04 07:45:59.705 INFO [stderr] warning: method is never used: `elapsed`
Dec 04 07:45:59.705 INFO [stderr]   --> src/timing.rs:46:5
Dec 04 07:45:59.705 INFO [stderr]    |
Dec 04 07:45:59.705 INFO [stderr] 46 |     pub fn elapsed(&self, name: &str) -> time::Duration {
Dec 04 07:45:59.705 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.705 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.727 INFO [stderr]   --> src/parallel_trainer.rs:85:13
Dec 04 07:45:59.727 INFO [stderr]    |
Dec 04 07:45:59.727 INFO [stderr] 85 | /             self.job_sender.send(TrainingJob {
Dec 04 07:45:59.727 INFO [stderr] 86 | |                 examples_indices: chunk,
Dec 04 07:45:59.727 INFO [stderr] 87 | |                 network_parameters: self.shared_nn_parameters.clone(),
Dec 04 07:45:59.727 INFO [stderr] 88 | |             });
Dec 04 07:45:59.727 INFO [stderr]    | |_______________^
Dec 04 07:45:59.727 INFO [stderr]    |
Dec 04 07:45:59.727 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:45:59.727 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.727 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.727 INFO [stderr]    --> src/parallel_trainer.rs:160:9
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr] 160 |         output_sender.send(local_nn_trainer.clone());
Dec 04 07:45:59.727 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.727 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.727 INFO [stderr]    --> src/snake.rs:118:9
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr] 118 |         writer.write("\n".as_bytes());
Dec 04 07:45:59.727 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.727 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.727 INFO [stderr]    --> src/snake.rs:120:5
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr] 120 |     writer.flush();
Dec 04 07:45:59.727 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.727 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.727 INFO [stderr]    --> src/snake.rs:131:5
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr] 131 |     writer.write(character.as_bytes());
Dec 04 07:45:59.727 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.727 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.727 INFO [stderr]    --> src/snake_nn.rs:140:21
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr] 140 |                     write!(training_data_file, "\n");
Dec 04 07:45:59.727 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.727 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 07:45:59.727 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.727 INFO [stderr]    --> src/snake_nn.rs:150:9
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr] 150 |         jh.join();
Dec 04 07:45:59.727 INFO [stderr]     |         ^^^^^^^^^^
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.727 INFO [stderr] 
Dec 04 07:45:59.727 INFO [stderr] warning: the `game_over:` in this pattern is redundant
Dec 04 07:45:59.727 INFO [stderr]    --> src/snake_nn.rs:203:17
Dec 04 07:45:59.727 INFO [stderr]     |
Dec 04 07:45:59.727 INFO [stderr] 203 |                 game_over: game_over,
Dec 04 07:45:59.727 INFO [stderr]     |                 ----------^^^^^^^^^^
Dec 04 07:45:59.727 INFO [stderr]     |                 |
Dec 04 07:45:59.728 INFO [stderr]     |                 help: remove this
Dec 04 07:45:59.728 INFO [stderr]     |
Dec 04 07:45:59.728 INFO [stderr]     = note: #[warn(non_shorthand_field_patterns)] on by default
Dec 04 07:45:59.728 INFO [stderr] 
Dec 04 07:45:59.728 INFO [stderr] warning: the `game_over:` in this pattern is redundant
Dec 04 07:45:59.728 INFO [stderr]    --> src/snake_nn.rs:271:13
Dec 04 07:45:59.728 INFO [stderr]     |
Dec 04 07:45:59.728 INFO [stderr] 271 |             game_over: game_over,
Dec 04 07:45:59.728 INFO [stderr]     |             ----------^^^^^^^^^^
Dec 04 07:45:59.728 INFO [stderr]     |             |
Dec 04 07:45:59.728 INFO [stderr]     |             help: remove this
Dec 04 07:45:59.728 INFO [stderr] 
Dec 04 07:45:59.728 INFO [stderr] warning: the `game_over:` in this pattern is redundant
Dec 04 07:45:59.728 INFO [stderr]    --> src/snake_nn.rs:308:17
Dec 04 07:45:59.728 INFO [stderr]     |
Dec 04 07:45:59.728 INFO [stderr] 308 |                 game_over: game_over,
Dec 04 07:45:59.728 INFO [stderr]     |                 ----------^^^^^^^^^^
Dec 04 07:45:59.728 INFO [stderr]     |                 |
Dec 04 07:45:59.728 INFO [stderr]     |                 help: remove this
Dec 04 07:45:59.728 INFO [stderr] 
Dec 04 07:45:59.728 INFO [stderr] warning: unused attribute
Dec 04 07:45:59.728 INFO [stderr]  --> src/snake_nn.rs:1:1
Dec 04 07:45:59.728 INFO [stderr]   |
Dec 04 07:45:59.728 INFO [stderr] 1 | #![feature(test)]
Dec 04 07:45:59.728 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.728 INFO [stderr]   |
Dec 04 07:45:59.728 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 04 07:45:59.728 INFO [stderr] 
Dec 04 07:45:59.728 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 04 07:45:59.728 INFO [stderr]  --> src/snake_nn.rs:1:1
Dec 04 07:45:59.728 INFO [stderr]   |
Dec 04 07:45:59.728 INFO [stderr] 1 | #![feature(test)]
Dec 04 07:45:59.728 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.728 INFO [stderr] 
Dec 04 07:45:59.728 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.728 INFO [stderr]   --> src/timing.rs:75:9
Dec 04 07:45:59.728 INFO [stderr]    |
Dec 04 07:45:59.728 INFO [stderr] 75 |         writeln!(f, "=== Timing ===");
Dec 04 07:45:59.728 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:45:59.728 INFO [stderr]    |
Dec 04 07:45:59.728 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.728 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 07:45:59.728 INFO [stderr] 
Dec 04 07:45:59.728 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:45:59.728 INFO [stderr]   --> src/timing.rs:77:13
Dec 04 07:45:59.728 INFO [stderr]    |
Dec 04 07:45:59.728 INFO [stderr] 77 | /             writeln!(
Dec 04 07:45:59.728 INFO [stderr] 78 | |                 f,
Dec 04 07:45:59.728 INFO [stderr] 79 | |                 "{}: {}.{:04}s",
Dec 04 07:45:59.728 INFO [stderr] 80 | |                 name,
Dec 04 07:45:59.728 INFO [stderr] 81 | |                 timer.duration.as_secs(),
Dec 04 07:45:59.728 INFO [stderr] 82 | |                 timer.duration.subsec_nanos() / 1000000
Dec 04 07:45:59.728 INFO [stderr] 83 | |             );
Dec 04 07:45:59.728 INFO [stderr]    | |______________^
Dec 04 07:45:59.728 INFO [stderr]    |
Dec 04 07:45:59.728 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:45:59.728 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 07:45:59.728 INFO [stderr] 
Dec 04 07:45:59.767 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.94s
Dec 04 07:45:59.805 INFO [stderr] su: No module specific data is present
Dec 04 07:46:00.813 INFO running `"docker" "inspect" "f1d8b94213d0367f3676934d27e8000939247a88617be78799ab32e732c53d86"`
Dec 04 07:46:01.135 INFO running `"docker" "rm" "-f" "f1d8b94213d0367f3676934d27e8000939247a88617be78799ab32e732c53d86"`
Dec 04 07:46:01.339 INFO [stdout] f1d8b94213d0367f3676934d27e8000939247a88617be78799ab32e732c53d86