[INFO] cloning repository https://github.com/dmitryvm1/towers_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/dmitryvm1/towers_of_hanoi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmitryvm1%2Ftowers_of_hanoi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmitryvm1%2Ftowers_of_hanoi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e041db76592a68892113b8cee94eefd3737893ce
[INFO] checking dmitryvm1/towers_of_hanoi against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmitryvm1%2Ftowers_of_hanoi" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmitryvm1/towers_of_hanoi on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmitryvm1/towers_of_hanoi
[INFO] finished tweaking git repo https://github.com/dmitryvm1/towers_of_hanoi
[INFO] tweaked toml for git repo https://github.com/dmitryvm1/towers_of_hanoi written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dmitryvm1/towers_of_hanoi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusttype v0.8.1
[INFO] [stderr]   Downloaded freetype-sys v0.9.0
[INFO] [stderr]   Downloaded freetype-rs v0.23.0
[INFO] [stderr]   Downloaded gfx_text v0.26.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0084ebfc7b8d494e1460f9525656a4a760c35e83b9e8a95adb448438459abdeb
[INFO] running `Command { std: "docker" "start" "-a" "0084ebfc7b8d494e1460f9525656a4a760c35e83b9e8a95adb448438459abdeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0084ebfc7b8d494e1460f9525656a4a760c35e83b9e8a95adb448438459abdeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0084ebfc7b8d494e1460f9525656a4a760c35e83b9e8a95adb448438459abdeb", kill_on_drop: false }`
[INFO] [stdout] 0084ebfc7b8d494e1460f9525656a4a760c35e83b9e8a95adb448438459abdeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afae3d8811def72e2e0c9b10ef144d81af8ffd22ba1520efe070f4bce1885c3f
[INFO] running `Command { std: "docker" "start" "-a" "afae3d8811def72e2e0c9b10ef144d81af8ffd22ba1520efe070f4bce1885c3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling freetype-sys v0.9.0
[INFO] [stderr]     Checking stb_truetype v0.3.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.3.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking freetype-rs v0.23.0
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking rusttype v0.8.1
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking gfx_text v0.26.0
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking glutin v0.20.1
[INFO] [stderr]     Checking gfx_window_glutin v0.30.0
[INFO] [stderr]     Checking hanoi_towers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.92s
[INFO] running `Command { std: "docker" "inspect" "afae3d8811def72e2e0c9b10ef144d81af8ffd22ba1520efe070f4bce1885c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afae3d8811def72e2e0c9b10ef144d81af8ffd22ba1520efe070f4bce1885c3f", kill_on_drop: false }`
[INFO] [stdout] afae3d8811def72e2e0c9b10ef144d81af8ffd22ba1520efe070f4bce1885c3f
[INFO] checking dmitryvm1/towers_of_hanoi against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmitryvm1%2Ftowers_of_hanoi" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmitryvm1/towers_of_hanoi on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmitryvm1/towers_of_hanoi
[INFO] finished tweaking git repo https://github.com/dmitryvm1/towers_of_hanoi
[INFO] tweaked toml for git repo https://github.com/dmitryvm1/towers_of_hanoi written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dmitryvm1/towers_of_hanoi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9faf824623cef9c03bd0591b04344af54baf4339902aa36822f76aa577647cc
[INFO] running `Command { std: "docker" "start" "-a" "d9faf824623cef9c03bd0591b04344af54baf4339902aa36822f76aa577647cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9faf824623cef9c03bd0591b04344af54baf4339902aa36822f76aa577647cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9faf824623cef9c03bd0591b04344af54baf4339902aa36822f76aa577647cc", kill_on_drop: false }`
[INFO] [stdout] d9faf824623cef9c03bd0591b04344af54baf4339902aa36822f76aa577647cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 661c2ae4af2df2cdab1a58b10d28300e49f8e219a2609c4b3b6a385bffac4a7e
[INFO] running `Command { std: "docker" "start" "-a" "661c2ae4af2df2cdab1a58b10d28300e49f8e219a2609c4b3b6a385bffac4a7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling freetype-sys v0.9.0
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]     Checking stb_truetype v0.3.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.1
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking freetype-rs v0.23.0
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking rusttype v0.8.1
[INFO] [stderr]     Checking gfx_text v0.26.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking glutin v0.20.1
[INFO] [stderr]     Checking gfx_window_glutin v0.30.0
[INFO] [stderr]     Checking hanoi_towers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.81s
[INFO] running `Command { std: "docker" "inspect" "661c2ae4af2df2cdab1a58b10d28300e49f8e219a2609c4b3b6a385bffac4a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "661c2ae4af2df2cdab1a58b10d28300e49f8e219a2609c4b3b6a385bffac4a7e", kill_on_drop: false }`
[INFO] [stdout] 661c2ae4af2df2cdab1a58b10d28300e49f8e219a2609c4b3b6a385bffac4a7e