[INFO] fetching crate leemaze 0.1.11...
[INFO] building leemaze-0.1.11 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate leemaze 0.1.11 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate leemaze 0.1.11 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate leemaze 0.1.11
[INFO] finished tweaking crates.io crate leemaze 0.1.11
[INFO] tweaked toml for crates.io crate leemaze 0.1.11 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6d20cbe5b59b73bc06e4645784b53ab1b954ce4bd33b0db5f134391f8399d7ca
[INFO] running `Command { std: "docker" "start" "-a" "6d20cbe5b59b73bc06e4645784b53ab1b954ce4bd33b0db5f134391f8399d7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d20cbe5b59b73bc06e4645784b53ab1b954ce4bd33b0db5f134391f8399d7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d20cbe5b59b73bc06e4645784b53ab1b954ce4bd33b0db5f134391f8399d7ca", kill_on_drop: false }`
[INFO] [stdout] 6d20cbe5b59b73bc06e4645784b53ab1b954ce4bd33b0db5f134391f8399d7ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1b71dcceabd0b10ec31db085f8302d502dd92e3be6dc76f145c106b4174f3bc
[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" "c1b71dcceabd0b10ec31db085f8302d502dd92e3be6dc76f145c106b4174f3bc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling leemaze v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let mut position_vec: Vec<usize> = vec![from.0, from.1];
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 354 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:420:9
[INFO] [stdout]     |
[INFO] [stdout] 420 |     let mut position_vec: Vec<usize> = vec![from.0, from.1, from.2];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:501:9
[INFO] [stdout]     |
[INFO] [stdout] 501 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:507:9
[INFO] [stdout]     |
[INFO] [stdout] 507 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:590:9
[INFO] [stdout]     |
[INFO] [stdout] 590 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:597:9
[INFO] [stdout]     |
[INFO] [stdout] 597 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sketch`
[INFO] [stdout]    --> src/lib.rs:330:4
[INFO] [stdout]     |
[INFO] [stdout] 330 | fn sketch(boolvec: &Vec<Vec<bool>>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]   --> src/main.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut level = 0;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut level = 0;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:351:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |     let mut position_vec: Vec<usize> = vec![from.0, from.1];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut position_vec: Vec<usize> = vec![from.0, from.1, from.2];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 419 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:499:9
[INFO] [stdout]     |
[INFO] [stdout] 499 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:505:9
[INFO] [stdout]     |
[INFO] [stdout] 505 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:588:9
[INFO] [stdout]     |
[INFO] [stdout] 588 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:595:9
[INFO] [stdout]     |
[INFO] [stdout] 595 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sketch`
[INFO] [stdout]    --> src/main.rs:328:4
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn sketch(boolvec: &Vec<Vec<bool>>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "c1b71dcceabd0b10ec31db085f8302d502dd92e3be6dc76f145c106b4174f3bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b71dcceabd0b10ec31db085f8302d502dd92e3be6dc76f145c106b4174f3bc", kill_on_drop: false }`
[INFO] [stdout] c1b71dcceabd0b10ec31db085f8302d502dd92e3be6dc76f145c106b4174f3bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea924f65c9005a07164fc1b024ec061d6e278cb034c916f66290c17bdb0ac80c
[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" "ea924f65c9005a07164fc1b024ec061d6e278cb034c916f66290c17bdb0ac80c", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let mut position_vec: Vec<usize> = vec![from.0, from.1];
[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] [stderr]    Compiling leemaze v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 354 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:420:9
[INFO] [stdout]     |
[INFO] [stdout] 420 |     let mut position_vec: Vec<usize> = vec![from.0, from.1, from.2];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:501:9
[INFO] [stdout]     |
[INFO] [stdout] 501 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:507:9
[INFO] [stdout]     |
[INFO] [stdout] 507 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:590:9
[INFO] [stdout]     |
[INFO] [stdout] 590 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:597:9
[INFO] [stdout]     |
[INFO] [stdout] 597 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sketch`
[INFO] [stdout]    --> src/lib.rs:330:4
[INFO] [stdout]     |
[INFO] [stdout] 330 | fn sketch(boolvec: &Vec<Vec<bool>>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let mut position_vec: Vec<usize> = vec![from.0, from.1];
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 354 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:420:9
[INFO] [stdout]     |
[INFO] [stdout] 420 |     let mut position_vec: Vec<usize> = vec![from.0, from.1, from.2];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:501:9
[INFO] [stdout]     |
[INFO] [stdout] 501 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:507:9
[INFO] [stdout]     |
[INFO] [stdout] 507 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:590:9
[INFO] [stdout]     |
[INFO] [stdout] 590 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:597:9
[INFO] [stdout]     |
[INFO] [stdout] 597 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sketch`
[INFO] [stdout]    --> src/lib.rs:330:4
[INFO] [stdout]     |
[INFO] [stdout] 330 | fn sketch(boolvec: &Vec<Vec<bool>>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]   --> src/main.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut level = 0;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut level = 0;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:351:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |     let mut position_vec: Vec<usize> = vec![from.0, from.1];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let mut position_vec: Vec<usize> = vec![from.0, from.1, from.2];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 419 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:499:9
[INFO] [stdout]     |
[INFO] [stdout] 499 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:505:9
[INFO] [stdout]     |
[INFO] [stdout] 505 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:588:9
[INFO] [stdout]     |
[INFO] [stdout] 588 |     let mut position_vec: Vec<usize> = vec![
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:595:9
[INFO] [stdout]     |
[INFO] [stdout] 595 |     let mut move_history: Vec<usize> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sketch`
[INFO] [stdout]    --> src/main.rs:328:4
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn sketch(boolvec: &Vec<Vec<bool>>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "ea924f65c9005a07164fc1b024ec061d6e278cb034c916f66290c17bdb0ac80c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea924f65c9005a07164fc1b024ec061d6e278cb034c916f66290c17bdb0ac80c", kill_on_drop: false }`
[INFO] [stdout] ea924f65c9005a07164fc1b024ec061d6e278cb034c916f66290c17bdb0ac80c
