[INFO] updating cached repository https://github.com/mmajko/knapsack-problem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11cdd693800848f8d688ce82a5444f0e12f56b04
[INFO] testing mmajko/knapsack-problem against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmajko%2Fknapsack-problem" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmajko/knapsack-problem on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmajko/knapsack-problem
[INFO] finished tweaking git repo https://github.com/mmajko/knapsack-problem
[INFO] tweaked toml for git repo https://github.com/mmajko/knapsack-problem written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/mmajko/knapsack-problem already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fa15fe24325c190572c0bf5182c17ea54d5f1f51012e36225726fceccbba563
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6fa15fe24325c190572c0bf5182c17ea54d5f1f51012e36225726fceccbba563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fa15fe24325c190572c0bf5182c17ea54d5f1f51012e36225726fceccbba563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fa15fe24325c190572c0bf5182c17ea54d5f1f51012e36225726fceccbba563", kill_on_drop: false }`
[INFO] [stdout] 6fa15fe24325c190572c0bf5182c17ea54d5f1f51012e36225726fceccbba563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e72415b90bbd2ba411213ff0dcb271544ad94e82a0ac43290dfbdbf237edb308
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e72415b90bbd2ba411213ff0dcb271544ad94e82a0ac43290dfbdbf237edb308", kill_on_drop: false }`
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling knapsack-problem v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `solvers::recursive`
[INFO] [stdout]  --> src/solvers/dynamic.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use solvers::recursive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `KnapItem`, `sum_of_prices`
[INFO] [stdout]  --> src/solvers/recursive.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use parser::{sum_of_prices, Knapsack, KnapItem};
[INFO] [stdout]   |              ^^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inspect`
[INFO] [stdout]  --> src/genetic/mod.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::utils::{odds_are, random_individual, inspect, sort_population};
[INFO] [stdout]   |                                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/solvers/mod.rs:60:72
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let new_items = knap.items.clone().iter().enumerate().filter(|&(i, x)| bits[i])
[INFO] [stdout]    |                                                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/solvers/mod.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     .map(|(i, x)| *x).collect();
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elitism_count`
[INFO] [stdout]   --> src/genetic/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let elitism_count = 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elitism_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/genetic/mod.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for i in 0..500 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pop_size`
[INFO] [stdout]  --> src/genetic/selectors.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let pop_size = population.len();
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pop_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generation`
[INFO] [stdout]   --> src/genetic/utils.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn inspect<F>(generation: usize, sorted_population: &Vec<Vec<bool>>, fitness_fn: &F) where F: Fn(&Vec<bool>) -> usize {
[INFO] [stdout]    |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/reporter.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut stype = String::from(format!("{:?}", solution));
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `None`
[INFO] [stdout]   --> src/parser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FPTAS25`
[INFO] [stdout]   --> src/parser.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     FPTAS25,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FPTAS75`
[INFO] [stdout]   --> src/parser.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FPTAS75,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inspect`
[INFO] [stdout]   --> src/genetic/utils.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn inspect<F>(generation: usize, sorted_population: &Vec<Vec<bool>>, fitness_fn: &F) where F: Fn(&Vec<bool>) -> usize {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "e72415b90bbd2ba411213ff0dcb271544ad94e82a0ac43290dfbdbf237edb308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e72415b90bbd2ba411213ff0dcb271544ad94e82a0ac43290dfbdbf237edb308", kill_on_drop: false }`
[INFO] [stdout] e72415b90bbd2ba411213ff0dcb271544ad94e82a0ac43290dfbdbf237edb308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d34cd844cf801c7fc761cb83dbd2b409b8aec2157a8586099a1596a7d48fdde
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6d34cd844cf801c7fc761cb83dbd2b409b8aec2157a8586099a1596a7d48fdde", kill_on_drop: false }`
[INFO] [stderr]    Compiling knapsack-problem v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `solvers::recursive`
[INFO] [stdout]  --> src/solvers/dynamic.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use solvers::recursive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `KnapItem`, `sum_of_prices`
[INFO] [stdout]  --> src/solvers/recursive.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use parser::{sum_of_prices, Knapsack, KnapItem};
[INFO] [stdout]   |              ^^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inspect`
[INFO] [stdout]  --> src/genetic/mod.rs:6:48
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::utils::{odds_are, random_individual, inspect, sort_population};
[INFO] [stdout]   |                                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/solvers/mod.rs:60:72
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let new_items = knap.items.clone().iter().enumerate().filter(|&(i, x)| bits[i])
[INFO] [stdout]    |                                                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/solvers/mod.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     .map(|(i, x)| *x).collect();
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elitism_count`
[INFO] [stdout]   --> src/genetic/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let elitism_count = 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elitism_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/genetic/mod.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for i in 0..500 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pop_size`
[INFO] [stdout]  --> src/genetic/selectors.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let pop_size = population.len();
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pop_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generation`
[INFO] [stdout]   --> src/genetic/utils.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn inspect<F>(generation: usize, sorted_population: &Vec<Vec<bool>>, fitness_fn: &F) where F: Fn(&Vec<bool>) -> usize {
[INFO] [stdout]    |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/reporter.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut stype = String::from(format!("{:?}", solution));
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `None`
[INFO] [stdout]   --> src/parser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FPTAS25`
[INFO] [stdout]   --> src/parser.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     FPTAS25,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FPTAS75`
[INFO] [stdout]   --> src/parser.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FPTAS75,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inspect`
[INFO] [stdout]   --> src/genetic/utils.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn inspect<F>(generation: usize, sorted_population: &Vec<Vec<bool>>, fitness_fn: &F) where F: Fn(&Vec<bool>) -> usize {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "6d34cd844cf801c7fc761cb83dbd2b409b8aec2157a8586099a1596a7d48fdde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d34cd844cf801c7fc761cb83dbd2b409b8aec2157a8586099a1596a7d48fdde", kill_on_drop: false }`
[INFO] [stdout] 6d34cd844cf801c7fc761cb83dbd2b409b8aec2157a8586099a1596a7d48fdde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15d6ee9446d71747b49501c5d9adeed0055cfe1023645bb91e6280a9e6d30528
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "15d6ee9446d71747b49501c5d9adeed0055cfe1023645bb91e6280a9e6d30528", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `solvers::recursive`
[INFO] [stderr]  --> src/solvers/dynamic.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use solvers::recursive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `KnapItem`, `sum_of_prices`
[INFO] [stderr]  --> src/solvers/recursive.rs:1:14
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parser::{sum_of_prices, Knapsack, KnapItem};
[INFO] [stderr]   |              ^^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `inspect`
[INFO] [stderr]  --> src/genetic/mod.rs:6:48
[INFO] [stderr]   |
[INFO] [stderr] 6 | use self::utils::{odds_are, random_individual, inspect, sort_population};
[INFO] [stderr]   |                                                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/solvers/mod.rs:60:72
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let new_items = knap.items.clone().iter().enumerate().filter(|&(i, x)| bits[i])
[INFO] [stderr]    |                                                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/solvers/mod.rs:61:28
[INFO] [stderr]    |
[INFO] [stderr] 61 |                     .map(|(i, x)| *x).collect();
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elitism_count`
[INFO] [stderr]   --> src/genetic/mod.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let elitism_count = 2;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elitism_count`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/genetic/mod.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in 0..500 {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pop_size`
[INFO] [stderr]  --> src/genetic/selectors.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let pop_size = population.len();
[INFO] [stderr]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pop_size`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `generation`
[INFO] [stderr]   --> src/genetic/utils.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn inspect<F>(generation: usize, sorted_population: &Vec<Vec<bool>>, fitness_fn: &F) where F: Fn(&Vec<bool>) -> usize {
[INFO] [stderr]    |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generation`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/reporter.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut stype = String::from(format!("{:?}", solution));
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/parser.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     None,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FPTAS25`
[INFO] [stderr]   --> src/parser.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     FPTAS25,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FPTAS75`
[INFO] [stderr]   --> src/parser.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     FPTAS75,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inspect`
[INFO] [stderr]   --> src/genetic/utils.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn inspect<F>(generation: usize, sorted_population: &Vec<Vec<bool>>, fitness_fn: &F) where F: Fn(&Vec<bool>) -> usize {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/knapsack_problem-f8932e1bc694d65f
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "15d6ee9446d71747b49501c5d9adeed0055cfe1023645bb91e6280a9e6d30528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d6ee9446d71747b49501c5d9adeed0055cfe1023645bb91e6280a9e6d30528", kill_on_drop: false }`
[INFO] [stdout] 15d6ee9446d71747b49501c5d9adeed0055cfe1023645bb91e6280a9e6d30528