[INFO] cloning repository https://github.com/clonedcherry/tower-of-hanoi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clonedcherry/tower-of-hanoi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclonedcherry%2Ftower-of-hanoi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclonedcherry%2Ftower-of-hanoi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38fdef113eebab257a71a8422d7272f3bae0d7f6
[INFO] testing clonedcherry/tower-of-hanoi against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclonedcherry%2Ftower-of-hanoi" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clonedcherry/tower-of-hanoi on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/clonedcherry/tower-of-hanoi
[INFO] finished tweaking git repo https://github.com/clonedcherry/tower-of-hanoi
[INFO] tweaked toml for git repo https://github.com/clonedcherry/tower-of-hanoi written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/clonedcherry/tower-of-hanoi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.keyword
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "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] bdae900eebad743152f892e1e97d070043b38273145bcbc8a1d52aa951859ea5
[INFO] running `Command { std: "docker" "start" "-a" "bdae900eebad743152f892e1e97d070043b38273145bcbc8a1d52aa951859ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdae900eebad743152f892e1e97d070043b38273145bcbc8a1d52aa951859ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdae900eebad743152f892e1e97d070043b38273145bcbc8a1d52aa951859ea5", kill_on_drop: false }`
[INFO] [stdout] bdae900eebad743152f892e1e97d070043b38273145bcbc8a1d52aa951859ea5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82a444c64cb0893f5c0f59bcff2c1c391d249d203f1e7fa2158ba0e61edb764f
[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" "82a444c64cb0893f5c0f59bcff2c1c391d249d203f1e7fa2158ba0e61edb764f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.keyword
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling token_store v0.1.2
[INFO] [stderr]    Compiling shader_version v0.3.0
[INFO] [stderr]    Compiling bytemuck v1.7.0
[INFO] [stderr]    Compiling piston-texture v0.6.0
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling vecmath v0.3.1
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling wayland-sys v0.12.5
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling gfx_core v0.9.2
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling ordered-float v0.5.2
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling stb_truetype v0.2.8
[INFO] [stderr]    Compiling rusttype v0.4.3
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gl_generator v0.8.0
[INFO] [stderr]    Compiling piston2d-graphics v0.26.0
[INFO] [stderr]    Compiling gfx v0.18.2
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling xcursor v0.3.3
[INFO] [stderr]    Compiling glutin v0.12.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling wayland-kbd v0.13.1
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling gfx_device_gl v0.16.2
[INFO] [stderr]    Compiling wayland-window v0.13.3
[INFO] [stderr]    Compiling wayland-commons v0.28.5
[INFO] [stderr]    Compiling winit v0.10.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling calloop v0.6.5
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling wayland-cursor v0.28.5
[INFO] [stderr]    Compiling wayland-egl v0.28.5
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.52.1
[INFO] [stderr]    Compiling piston-gfx_texture v0.41.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.73.0
[INFO] [stderr]    Compiling pistoncore-input v1.0.0
[INFO] [stderr]    Compiling pistoncore-input v0.20.0
[INFO] [stderr]    Compiling pistoncore-window v0.47.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.53.0
[INFO] [stderr]    Compiling pistoncore-window v0.31.0
[INFO] [stderr]    Compiling piston v0.53.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.36.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.45.3
[INFO] [stderr]    Compiling piston v0.36.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.12.3
[INFO] [stderr]    Compiling winit v0.24.0
[INFO] [stderr]    Compiling glutin v0.26.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.69.0
[INFO] [stderr]    Compiling piston_window v0.120.0
[INFO] [stderr]    Compiling tower-of-hanoi v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `ask_turn`
[INFO] [stdout]   --> src/hanoi_game.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |         pub fn ask_turn(&self) -> String {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "82a444c64cb0893f5c0f59bcff2c1c391d249d203f1e7fa2158ba0e61edb764f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82a444c64cb0893f5c0f59bcff2c1c391d249d203f1e7fa2158ba0e61edb764f", kill_on_drop: false }`
[INFO] [stdout] 82a444c64cb0893f5c0f59bcff2c1c391d249d203f1e7fa2158ba0e61edb764f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c195e153e1943ac6825377cc26ea61fc578c5c7cb1cd03a19677b3b7d1dd0f5
[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" "7c195e153e1943ac6825377cc26ea61fc578c5c7cb1cd03a19677b3b7d1dd0f5", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.keyword
[INFO] [stderr]    Compiling tower-of-hanoi v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `ask_turn`
[INFO] [stdout]   --> src/hanoi_game.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |         pub fn ask_turn(&self) -> String {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 1.75s
[INFO] running `Command { std: "docker" "inspect" "7c195e153e1943ac6825377cc26ea61fc578c5c7cb1cd03a19677b3b7d1dd0f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c195e153e1943ac6825377cc26ea61fc578c5c7cb1cd03a19677b3b7d1dd0f5", kill_on_drop: false }`
[INFO] [stdout] 7c195e153e1943ac6825377cc26ea61fc578c5c7cb1cd03a19677b3b7d1dd0f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "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] 7185fc5c950163003edb4e4b22e472f954759a53122df63bb0a76b6bb495aee8
[INFO] running `Command { std: "docker" "start" "-a" "7185fc5c950163003edb4e4b22e472f954759a53122df63bb0a76b6bb495aee8", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.keyword
[INFO] [stderr] warning: associated function is never used: `ask_turn`
[INFO] [stderr]   --> src/hanoi_game.rs:67:16
[INFO] [stderr]    |
[INFO] [stderr] 67 |         pub fn ask_turn(&self) -> String {
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tower-of-hanoi` (bin "tower-of-hanoi" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tower_of_hanoi-b5d81a0a86f70339)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7185fc5c950163003edb4e4b22e472f954759a53122df63bb0a76b6bb495aee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7185fc5c950163003edb4e4b22e472f954759a53122df63bb0a76b6bb495aee8", kill_on_drop: false }`
[INFO] [stdout] 7185fc5c950163003edb4e4b22e472f954759a53122df63bb0a76b6bb495aee8