[INFO] crate bustabit 0.2.1 is already in cache
[INFO] testing bustabit-0.2.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate bustabit 0.2.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate bustabit 0.2.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bustabit 0.2.1
[INFO] finished tweaking crates.io crate bustabit 0.2.1
[INFO] tweaked toml for crates.io crate bustabit 0.2.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate bustabit 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb99d99c78a29b81e0d9797aa24816133928837baa0ac88b8827e6d4cda69617
[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" "cb99d99c78a29b81e0d9797aa24816133928837baa0ac88b8827e6d4cda69617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb99d99c78a29b81e0d9797aa24816133928837baa0ac88b8827e6d4cda69617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb99d99c78a29b81e0d9797aa24816133928837baa0ac88b8827e6d4cda69617", kill_on_drop: false }`
[INFO] [stdout] cb99d99c78a29b81e0d9797aa24816133928837baa0ac88b8827e6d4cda69617
[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" "+beta-2020-07-24" "build" "--frozen" "--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] 9344858e4b486a2d6ab5876280d87a7425560fde09a93818401b498c222a9c36
[INFO] running `Command { std: "docker" "start" "-a" "9344858e4b486a2d6ab5876280d87a7425560fde09a93818401b498c222a9c36", kill_on_drop: false }`
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling bustabit v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "9344858e4b486a2d6ab5876280d87a7425560fde09a93818401b498c222a9c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9344858e4b486a2d6ab5876280d87a7425560fde09a93818401b498c222a9c36", kill_on_drop: false }`
[INFO] [stdout] 9344858e4b486a2d6ab5876280d87a7425560fde09a93818401b498c222a9c36
[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" "+beta-2020-07-24" "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] e08ad02a2e6cbcd92a033a57aa73f6a939cf08865c44b88d476e8d7df6e187a1
[INFO] running `Command { std: "docker" "start" "-a" "e08ad02a2e6cbcd92a033a57aa73f6a939cf08865c44b88d476e8d7df6e187a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling itertools v0.8.1
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling num_cpus v1.11.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling rayon v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling bustabit v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> examples/iterator.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut game:Game = Game::new(&s).unwrap();
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 51.23s
[INFO] running `Command { std: "docker" "inspect" "e08ad02a2e6cbcd92a033a57aa73f6a939cf08865c44b88d476e8d7df6e187a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e08ad02a2e6cbcd92a033a57aa73f6a939cf08865c44b88d476e8d7df6e187a1", kill_on_drop: false }`
[INFO] [stdout] e08ad02a2e6cbcd92a033a57aa73f6a939cf08865c44b88d476e8d7df6e187a1
[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" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e536564ca1f524847921992cf235741e1dfebb274589b7162c4fb0c1f1d66f8
[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" "1e536564ca1f524847921992cf235741e1dfebb274589b7162c4fb0c1f1d66f8", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/iterator.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut game:Game = Game::new(&s).unwrap();
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bustabit-827ee0ef45d7a988
[INFO] [stdout] 
[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] [stderr]      Running /opt/rustwide/target/debug/deps/lib-76403749082beee3
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test should_output_game_object ... ok
[INFO] [stdout] test should_return_correct_outcome_for_nyans ... ok
[INFO] [stdout] test should_return_none_for_invalid_symbols ... ok
[INFO] [stdout] test should_return_none_for_short_string ... ok
[INFO] [stdout] test should_generate_correct_previous_games ... ok
[INFO] [stdout] test should_have_next_item ... ok
[INFO] [stdout] test should_return_correct_outcome ... ok
[INFO] [stdout] test should_be_iterable_in_loop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bustabit
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Game (line 38) ... ok
[INFO] [stdout] test src/lib.rs - Game (line 115) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1e536564ca1f524847921992cf235741e1dfebb274589b7162c4fb0c1f1d66f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e536564ca1f524847921992cf235741e1dfebb274589b7162c4fb0c1f1d66f8", kill_on_drop: false }`
[INFO] [stdout] 1e536564ca1f524847921992cf235741e1dfebb274589b7162c4fb0c1f1d66f8