[INFO] cloning repository https://github.com/Klapeyron/Markov
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Klapeyron/Markov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKlapeyron%2FMarkov", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKlapeyron%2FMarkov'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62d4cd1839e0f7fc96beeaa6dc2a1efb829e1b94
[INFO] testing Klapeyron/Markov against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKlapeyron%2FMarkov" "/workspace/builds/worker-95/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-95/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Klapeyron/Markov on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Klapeyron/Markov
[INFO] finished tweaking git repo https://github.com/Klapeyron/Markov
[INFO] tweaked toml for git repo https://github.com/Klapeyron/Markov written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] crate git repo https://github.com/Klapeyron/Markov already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cbe6c5aae4a9ab18ab38e0e2f2b82f29fcc4c984a8f25984ac408c55fd85c66
[INFO] running `Command { std: "docker" "start" "-a" "3cbe6c5aae4a9ab18ab38e0e2f2b82f29fcc4c984a8f25984ac408c55fd85c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cbe6c5aae4a9ab18ab38e0e2f2b82f29fcc4c984a8f25984ac408c55fd85c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cbe6c5aae4a9ab18ab38e0e2f2b82f29fcc4c984a8f25984ac408c55fd85c66", kill_on_drop: false }`
[INFO] [stdout] 3cbe6c5aae4a9ab18ab38e0e2f2b82f29fcc4c984a8f25984ac408c55fd85c66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5314977e9c8db356a8af2b6f9dd06a1a4e42247bee043b28683e4c51ff62155
[INFO] running `Command { std: "docker" "start" "-a" "f5314977e9c8db356a8af2b6f9dd06a1a4e42247bee043b28683e4c51ff62155", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling markov v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/markov.rs:206:79
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn evaluate_action(self: &Markov, action: &Action, x: usize, y: usize) -> (f64) {
[INFO] [stdout]     |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/markov.rs:87:23
[INFO] [stdout]    |
[INFO] [stdout] 87 |             &Some(ref value) => write!(f, "{:?}, {:?}", self.state, self.action.clone().unwrap()),
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/markov.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn new() -> MarkovBuilder {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_size`
[INFO] [stdout]    --> src/markov.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn set_size(&mut self, x: usize, y: usize) -> &mut MarkovBuilder {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_state`
[INFO] [stdout]    --> src/markov.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn set_state(&mut self, state: State, x: usize, y: usize) -> &mut MarkovBuilder {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/markov.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn new() -> Markov {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/matrix.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         write!(f, "[");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/matrix.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             write!(f, "\n");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/matrix.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 write!(f, "[{:?}], ", elem);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "f5314977e9c8db356a8af2b6f9dd06a1a4e42247bee043b28683e4c51ff62155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5314977e9c8db356a8af2b6f9dd06a1a4e42247bee043b28683e4c51ff62155", kill_on_drop: false }`
[INFO] [stdout] f5314977e9c8db356a8af2b6f9dd06a1a4e42247bee043b28683e4c51ff62155
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c98225dd324d3c8ccb0a69d03408d00c61a9277cbe81c9ebf01c514e961fbda4
[INFO] running `Command { std: "docker" "start" "-a" "c98225dd324d3c8ccb0a69d03408d00c61a9277cbe81c9ebf01c514e961fbda4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling markov v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/markov.rs:206:79
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn evaluate_action(self: &Markov, action: &Action, x: usize, y: usize) -> (f64) {
[INFO] [stdout]     |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/markov.rs:87:23
[INFO] [stdout]    |
[INFO] [stdout] 87 |             &Some(ref value) => write!(f, "{:?}, {:?}", self.state, self.action.clone().unwrap()),
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[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/markov.rs:333:9
[INFO] [stdout]     |
[INFO] [stdout] 333 |     let mut markov: Markov = MarkovBuilder::new()
[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/markov.rs:348:9
[INFO] [stdout]     |
[INFO] [stdout] 348 |     let mut markov: Markov = MarkovBuilder::new()
[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/markov.rs:380:9
[INFO] [stdout]     |
[INFO] [stdout] 380 |     let mut markov: Markov = MarkovBuilder::new()
[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/markov.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |     let mut markov: Markov = MarkovBuilder::new()
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_size`
[INFO] [stdout]    --> src/markov.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn set_size(&mut self, x: usize, y: usize) -> &mut MarkovBuilder {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/markov.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn new() -> Markov {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/matrix.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         write!(f, "[");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/matrix.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             write!(f, "\n");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/matrix.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 write!(f, "[{:?}], ", elem);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.36s
[INFO] running `Command { std: "docker" "inspect" "c98225dd324d3c8ccb0a69d03408d00c61a9277cbe81c9ebf01c514e961fbda4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c98225dd324d3c8ccb0a69d03408d00c61a9277cbe81c9ebf01c514e961fbda4", kill_on_drop: false }`
[INFO] [stdout] c98225dd324d3c8ccb0a69d03408d00c61a9277cbe81c9ebf01c514e961fbda4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66caef5c416fe12f1bee979d18462a29355e910053149133a4fd5b876cf679fd
[INFO] running `Command { std: "docker" "start" "-a" "66caef5c416fe12f1bee979d18462a29355e910053149133a4fd5b876cf679fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/markov.rs:206:79
[INFO] [stderr]     |
[INFO] [stderr] 206 |     fn evaluate_action(self: &Markov, action: &Action, x: usize, y: usize) -> (f64) {
[INFO] [stderr]     |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/markov.rs:87:23
[INFO] [stderr]    |
[INFO] [stderr] 87 |             &Some(ref value) => write!(f, "{:?}, {:?}", self.state, self.action.clone().unwrap()),
[INFO] [stderr]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/markov.rs:333:9
[INFO] [stderr]     |
[INFO] [stderr] 333 |     let mut markov: Markov = MarkovBuilder::new()
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/markov.rs:348:9
[INFO] [stderr]     |
[INFO] [stderr] 348 |     let mut markov: Markov = MarkovBuilder::new()
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/markov.rs:380:9
[INFO] [stderr]     |
[INFO] [stderr] 380 |     let mut markov: Markov = MarkovBuilder::new()
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/markov.rs:428:9
[INFO] [stderr]     |
[INFO] [stderr] 428 |     let mut markov: Markov = MarkovBuilder::new()
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_size`
[INFO] [stderr]    --> src/markov.rs:132:8
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn set_size(&mut self, x: usize, y: usize) -> &mut MarkovBuilder {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/markov.rs:171:8
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn new() -> Markov {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         write!(f, "[");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             write!(f, "\n");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 write!(f, "[{:?}], ", elem);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `markov` (bin "markov" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/markov-7820c3557f45432b)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test markov::calculate_evaluation_of_action ... ignored
[INFO] [stdout] test markov::calculate_state_after_action ... ok
[INFO] [stdout] test markov::calculate_standard_world ... ok
[INFO] [stdout] test markov::not_allow_immutable_state_update ... ignored
[INFO] [stdout] test markov::not_allow_normal_state_update_from_different_type ... ignored
[INFO] [stdout] test markov::left_operation_calculations ... ok
[INFO] [stdout] test markov::prepare_standard_world ... ok
[INFO] [stdout] test markov::reverse_operation_calculations ... ok
[INFO] [stdout] test markov::update_normal_state ... ignored
[INFO] [stdout] test markov::right_operation_calculations ... ok
[INFO] [stdout] test matrix::all_fields_are_initialized_corectly ... ok
[INFO] [stdout] test matrix::correct_size ... ok
[INFO] [stdout] test matrix::return_false_if_inserted_out_of_range ... ok
[INFO] [stdout] test matrix::return_none_if_accessed_out_of_range ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66caef5c416fe12f1bee979d18462a29355e910053149133a4fd5b876cf679fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66caef5c416fe12f1bee979d18462a29355e910053149133a4fd5b876cf679fd", kill_on_drop: false }`
[INFO] [stdout] 66caef5c416fe12f1bee979d18462a29355e910053149133a4fd5b876cf679fd