[INFO] cloning repository https://github.com/vooxal/sorting-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vooxal/sorting-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvooxal%2Fsorting-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvooxal%2Fsorting-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a77e8b946430bd4b05140cf67578d7f59b768050
[INFO] testing vooxal/sorting-algorithms against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvooxal%2Fsorting-algorithms" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vooxal/sorting-algorithms on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vooxal/sorting-algorithms
[INFO] finished tweaking git repo https://github.com/vooxal/sorting-algorithms
[INFO] tweaked toml for git repo https://github.com/vooxal/sorting-algorithms written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/vooxal/sorting-algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c24a38fa81d6b04969203e30ddf0c54289fe54c2da77b59dc906cecca0ab085f
[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" "c24a38fa81d6b04969203e30ddf0c54289fe54c2da77b59dc906cecca0ab085f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c24a38fa81d6b04969203e30ddf0c54289fe54c2da77b59dc906cecca0ab085f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24a38fa81d6b04969203e30ddf0c54289fe54c2da77b59dc906cecca0ab085f", kill_on_drop: false }`
[INFO] [stdout] c24a38fa81d6b04969203e30ddf0c54289fe54c2da77b59dc906cecca0ab085f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb945160b85018160414d7dedde0abbe00f1e255fe2ed80936510d69c6c6ecec
[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" "eb945160b85018160414d7dedde0abbe00f1e255fe2ed80936510d69c6c6ecec", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling crossterm v0.18.2
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling sorting-algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/display/bar.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Highlight`
[INFO] [stdout]  --> src/display/bar.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Highlight {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display/bar.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         execute!(
[INFO] [stdout] 21 | |             stdout(),
[INFO] [stdout] 22 | |             cursor::Hide,
[INFO] [stdout] 23 | |             style::SetForegroundColor(color),
[INFO] [stdout] 24 | |             cursor::MoveTo(position, terminal_size.1 - slices - 1)
[INFO] [stdout] 25 | |         );
[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 `execute` (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/display/bar.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         execute!(
[INFO] [stdout] 30 | |             stdout(),
[INFO] [stdout] 31 | |             style::SetForegroundColor(color),
[INFO] [stdout] 32 | |             cursor::MoveTo(position, terminal_size.1 - slices + i),
[INFO] [stdout] 33 | |         );
[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 `execute` (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/display/bar.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     execute!(
[INFO] [stdout] 45 | |         stdout(),
[INFO] [stdout] 46 | |         terminal::Clear(terminal::ClearType::All),
[INFO] [stdout] 47 | |         cursor::MoveRight(1)
[INFO] [stdout] 48 | |     );
[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 `execute` (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/display/bar.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             create_bar(*i, column, style::Color::Yellow);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display/bar.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             create_bar(*i, column, style::Color::White);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.94s
[INFO] running `Command { std: "docker" "inspect" "eb945160b85018160414d7dedde0abbe00f1e255fe2ed80936510d69c6c6ecec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb945160b85018160414d7dedde0abbe00f1e255fe2ed80936510d69c6c6ecec", kill_on_drop: false }`
[INFO] [stdout] eb945160b85018160414d7dedde0abbe00f1e255fe2ed80936510d69c6c6ecec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", 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] 6f9faba9d750cc0bde036a835a7b605b05334dd7b6f82f2d3c73e40a9c633fc2
[INFO] running `Command { std: "docker" "start" "-a" "6f9faba9d750cc0bde036a835a7b605b05334dd7b6f82f2d3c73e40a9c633fc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling sorting-algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/display/bar.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Highlight`
[INFO] [stdout]  --> src/display/bar.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Highlight {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display/bar.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         execute!(
[INFO] [stdout] 21 | |             stdout(),
[INFO] [stdout] 22 | |             cursor::Hide,
[INFO] [stdout] 23 | |             style::SetForegroundColor(color),
[INFO] [stdout] 24 | |             cursor::MoveTo(position, terminal_size.1 - slices - 1)
[INFO] [stdout] 25 | |         );
[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 `execute` (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/display/bar.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         execute!(
[INFO] [stdout] 30 | |             stdout(),
[INFO] [stdout] 31 | |             style::SetForegroundColor(color),
[INFO] [stdout] 32 | |             cursor::MoveTo(position, terminal_size.1 - slices + i),
[INFO] [stdout] 33 | |         );
[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 `execute` (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/display/bar.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     execute!(
[INFO] [stdout] 45 | |         stdout(),
[INFO] [stdout] 46 | |         terminal::Clear(terminal::ClearType::All),
[INFO] [stdout] 47 | |         cursor::MoveRight(1)
[INFO] [stdout] 48 | |     );
[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 `execute` (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/display/bar.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             create_bar(*i, column, style::Color::Yellow);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display/bar.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             create_bar(*i, column, style::Color::White);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "6f9faba9d750cc0bde036a835a7b605b05334dd7b6f82f2d3c73e40a9c633fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f9faba9d750cc0bde036a835a7b605b05334dd7b6f82f2d3c73e40a9c633fc2", kill_on_drop: false }`
[INFO] [stdout] 6f9faba9d750cc0bde036a835a7b605b05334dd7b6f82f2d3c73e40a9c633fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", 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] cbfa05c3e44af07c19156ecb7acf429baefe90a51543b2c1150968221c1839ec
[INFO] running `Command { std: "docker" "start" "-a" "cbfa05c3e44af07c19156ecb7acf429baefe90a51543b2c1150968221c1839ec", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::ops::Range`
[INFO] [stderr]  --> src/display/bar.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ops::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Highlight`
[INFO] [stderr]  --> src/display/bar.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Highlight {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/display/bar.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 | /         execute!(
[INFO] [stderr] 21 | |             stdout(),
[INFO] [stderr] 22 | |             cursor::Hide,
[INFO] [stderr] 23 | |             style::SetForegroundColor(color),
[INFO] [stderr] 24 | |             cursor::MoveTo(position, terminal_size.1 - slices - 1)
[INFO] [stderr] 25 | |         );
[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 `execute` (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/display/bar.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | /         execute!(
[INFO] [stderr] 30 | |             stdout(),
[INFO] [stderr] 31 | |             style::SetForegroundColor(color),
[INFO] [stderr] 32 | |             cursor::MoveTo(position, terminal_size.1 - slices + i),
[INFO] [stderr] 33 | |         );
[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 `execute` (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/display/bar.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 | /     execute!(
[INFO] [stderr] 45 | |         stdout(),
[INFO] [stderr] 46 | |         terminal::Clear(terminal::ClearType::All),
[INFO] [stderr] 47 | |         cursor::MoveRight(1)
[INFO] [stderr] 48 | |     );
[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 `execute` (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/display/bar.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             create_bar(*i, column, style::Color::Yellow);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/display/bar.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |             create_bar(*i, column, style::Color::White);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `sorting-algorithm` (bin "sorting-algorithm" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sorting_algorithm-2386a15dafb561b6)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cbfa05c3e44af07c19156ecb7acf429baefe90a51543b2c1150968221c1839ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbfa05c3e44af07c19156ecb7acf429baefe90a51543b2c1150968221c1839ec", kill_on_drop: false }`
[INFO] [stdout] cbfa05c3e44af07c19156ecb7acf429baefe90a51543b2c1150968221c1839ec