[INFO] cloning repository https://github.com/ntBre/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ntBre/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FntBre%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FntBre%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfa05933ac488d77811cb2316b4d9e48c91fde06
[INFO] checking ntBre/sudoku against master#c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c for pr-123737
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FntBre%2Fsudoku" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ntBre/sudoku on toolchain c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ntBre/sudoku
[INFO] finished tweaking git repo https://github.com/ntBre/sudoku
[INFO] tweaked toml for git repo https://github.com/ntBre/sudoku written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ntBre/sudoku 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" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.33
[INFO] [stderr]   Downloaded futures-sink v0.3.24
[INFO] [stderr]   Downloaded thiserror v1.0.33
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded spin v0.9.4
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.70.1
[INFO] [stderr]   Downloaded flume v0.10.14
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.81.0
[INFO] [stderr]   Downloaded exr v1.5.0
[INFO] [stderr]   Downloaded image v0.24.3
[INFO] [stderr]   Downloaded khronos_api v2.2.0
[INFO] [stderr]   Downloaded tiff v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8002d5494ecaa33e01394b6651748f70d1bb94b4a41e79520a2cdeecde00fe8
[INFO] running `Command { std: "docker" "start" "-a" "c8002d5494ecaa33e01394b6651748f70d1bb94b4a41e79520a2cdeecde00fe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8002d5494ecaa33e01394b6651748f70d1bb94b4a41e79520a2cdeecde00fe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8002d5494ecaa33e01394b6651748f70d1bb94b4a41e79520a2cdeecde00fe8", kill_on_drop: false }`
[INFO] [stdout] c8002d5494ecaa33e01394b6651748f70d1bb94b4a41e79520a2cdeecde00fe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 381ab62656c408f937ac45391e11d02c4fe9454c78f5e1a4be356f528907388a
[INFO] running `Command { std: "docker" "start" "-a" "381ab62656c408f937ac45391e11d02c4fe9454c78f5e1a4be356f528907388a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking piston-float v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.6
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking piston-viewport v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.8
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.6
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking shader_version v0.7.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking spin_sleep v1.1.1
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking piston2d-graphics v0.42.0
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking x11-dl v2.20.0
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking xdg v2.4.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.3.4
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking jpeg-decoder v0.2.6
[INFO] [stderr]     Checking wayland-commons v0.28.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking tiff v0.7.3
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking wayland-egl v0.28.6
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking exr v1.5.0
[INFO] [stderr]     Checking pistoncore-input v1.0.1
[INFO] [stderr]     Checking image v0.24.3
[INFO] [stderr]     Checking pistoncore-window v0.47.1
[INFO] [stderr]     Checking pistoncore-event_loop v0.53.1
[INFO] [stderr]     Checking piston v0.53.1
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.81.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stderr]     Checking glutin v0.26.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.70.1
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.66s
[INFO] running `Command { std: "docker" "inspect" "381ab62656c408f937ac45391e11d02c4fe9454c78f5e1a4be356f528907388a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381ab62656c408f937ac45391e11d02c4fe9454c78f5e1a4be356f528907388a", kill_on_drop: false }`
[INFO] [stdout] 381ab62656c408f937ac45391e11d02c4fe9454c78f5e1a4be356f528907388a