[INFO] cloning repository https://github.com/AlecGoncharow/eight_queens
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlecGoncharow/eight_queens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlecGoncharow%2Feight_queens", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlecGoncharow%2Feight_queens'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72013de890dd8ab2bdc783e3a60bd444b7c66193
[INFO] checking AlecGoncharow/eight_queens against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlecGoncharow%2Feight_queens" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlecGoncharow/eight_queens on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlecGoncharow/eight_queens
[INFO] finished tweaking git repo https://github.com/AlecGoncharow/eight_queens
[INFO] tweaked toml for git repo https://github.com/AlecGoncharow/eight_queens written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AlecGoncharow/eight_queens 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded podio v0.1.6
[INFO] [stderr]   Downloaded autocfg v0.1.4
[INFO] [stderr]   Downloaded rand_core v0.4.0
[INFO] [stderr]   Downloaded zip v0.5.2
[INFO] [stderr]   Downloaded twox-hash v1.3.0
[INFO] [stderr]   Downloaded glutin_egl_sys v0.1.3
[INFO] [stderr]   Downloaded glutin_gles2_sys v0.1.3
[INFO] [stderr]   Downloaded wayland-sys v0.21.12
[INFO] [stderr]   Downloaded gl_generator v0.11.0
[INFO] [stderr]   Downloaded bzip2 v0.3.3
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded gfx_gl v0.6.0
[INFO] [stderr]   Downloaded glutin_wgl_sys v0.1.3
[INFO] [stderr]   Downloaded glyph_brush_layout v0.1.6
[INFO] [stderr]   Downloaded bzip2-sys v0.1.7
[INFO] [stderr]   Downloaded derivative v1.0.2
[INFO] [stderr]   Downloaded nix v0.11.0
[INFO] [stderr]   Downloaded bumpalo v2.4.3
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.45
[INFO] [stderr]   Downloaded gilrs v0.7.1
[INFO] [stderr]   Downloaded gfx_core v0.9.1
[INFO] [stderr]   Downloaded gfx_device_gl v0.16.1
[INFO] [stderr]   Downloaded nalgebra v0.18.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded glutin v0.20.0
[INFO] [stderr]   Downloaded gfx_window_glutin v0.30.0
[INFO] [stderr]   Downloaded gleam v0.6.17
[INFO] [stderr]   Downloaded libm v0.1.3
[INFO] [stderr]   Downloaded xi-unicode v0.1.0
[INFO] [stderr]   Downloaded directories v1.0.2
[INFO] [stderr]   Downloaded gfx v0.18.1
[INFO] [stderr]   Downloaded gilrs-core v0.2.2
[INFO] [stderr]   Downloaded base-x v0.2.5
[INFO] [stderr]   Downloaded stdweb-internal-macros v0.2.7
[INFO] [stderr]   Downloaded stdweb-internal-runtime v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.45
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.45
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.45
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.45
[INFO] [stderr]   Downloaded stdweb v0.4.17
[INFO] [stderr]   Downloaded hashbrown v0.3.1
[INFO] [stderr]   Downloaded glyph_brush v0.4.3
[INFO] [stderr]   Downloaded gif v0.10.2
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded num-rational v0.2.1
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded image v0.21.2
[INFO] [stderr]   Downloaded lyon_algorithms v0.13.1
[INFO] [stderr]   Downloaded euclid v0.19.8
[INFO] [stderr]   Downloaded lyon_geom v0.12.6
[INFO] [stderr]   Downloaded lyon_path v0.13.1
[INFO] [stderr]   Downloaded sid v0.5.2
[INFO] [stderr]   Downloaded lyon_tessellation v0.13.1
[INFO] [stderr]   Downloaded lyon v0.13.1
[INFO] [stderr]   Downloaded alga v0.9.1
[INFO] [stderr]   Downloaded generic-array v0.12.0
[INFO] [stderr]   Downloaded matrixmultiply v0.2.2
[INFO] [stderr]   Downloaded num-complex v0.2.1
[INFO] [stderr]   Downloaded typenum v1.10.0
[INFO] [stderr]   Downloaded claxon v0.3.3
[INFO] [stderr]   Downloaded libloading v0.4.3
[INFO] [stderr]   Downloaded clang-sys v0.21.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.54
[INFO] [stderr]   Downloaded termion v1.5.2
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded quote v0.4.2
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded ucd-util v0.1.3
[INFO] [stderr]   Downloaded utf8-ranges v1.0.2
[INFO] [stderr]   Downloaded bindgen v0.32.3
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.2
[INFO] [stderr]   Downloaded lewton v0.9.4
[INFO] [stderr]   Downloaded minimp3-sys v0.3.1
[INFO] [stderr]   Downloaded slice-deque v0.2.4
[INFO] [stderr]   Downloaded minimp3 v0.3.3
[INFO] [stderr]   Downloaded bytecount v0.4.0
[INFO] [stderr]   Downloaded serde_derive v1.0.92
[INFO] [stderr]   Downloaded cargo_metadata v0.6.4
[INFO] [stderr]   Downloaded pulldown-cmark v0.2.0
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded serde_json v1.0.39
[INFO] [stderr]   Downloaded syn v0.15.34
[INFO] [stderr]   Downloaded smart-default v0.5.2
[INFO] [stderr]   Downloaded log v0.4.6
[INFO] [stderr]   Downloaded owning_ref v0.4.0
[INFO] [stderr]   Downloaded smallvec v0.6.9
[INFO] [stderr]   Downloaded arrayvec v0.4.10
[INFO] [stderr]   Downloaded rustc-hash v1.0.1
[INFO] [stderr]   Downloaded stb_truetype v0.2.6
[INFO] [stderr]   Downloaded rusttype v0.7.6
[INFO] [stderr]   Downloaded wayland-protocols v0.21.12
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.5
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded wayland-commons v0.21.12
[INFO] [stderr]   Downloaded wayland-scanner v0.21.12
[INFO] [stderr]   Downloaded pkg-config v0.3.14
[INFO] [stderr]   Downloaded winit v0.19.1
[INFO] [stderr]   Downloaded cc v1.0.37
[INFO] [stderr]   Downloaded ggez v0.5.0-rc.2
[INFO] [stderr]   Downloaded stdweb-derive v0.5.1
[INFO] [stderr]   Downloaded glutin_glx_sys v0.1.5
[INFO] [stderr]   Downloaded mint v0.5.1
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[INFO] [stderr]   Downloaded remove_dir_all v0.5.1
[INFO] [stderr]   Downloaded skeptic v0.13.4
[INFO] [stderr]   Downloaded toml v0.5.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.15
[INFO] [stderr]   Downloaded backtrace v0.3.30
[INFO] [stderr]   Downloaded cocoa v0.18.4
[INFO] [stderr]   Downloaded objc v0.2.6
[INFO] [stderr]   Downloaded serde v1.0.92
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.5
[INFO] [stderr]   Downloaded linked-hash-map v0.5.2
[INFO] [stderr]   Downloaded num_cpus v1.10.0
[INFO] [stderr]   Downloaded ordered-float v1.0.2
[INFO] [stderr]   Downloaded same-file v1.0.4
[INFO] [stderr]   Downloaded walkdir v2.2.7
[INFO] [stderr]   Downloaded downcast-rs v1.0.4
[INFO] [stderr]   Downloaded quote v0.6.12
[INFO] [stderr]   Downloaded libloading v0.5.1
[INFO] [stderr]   Downloaded dlib v0.4.1
[INFO] [stderr]   Downloaded wayland-client v0.21.12
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded x11-dl v2.18.3
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85ea124289549ee20e948b8e31e5bd5c45eee067d955a135f0246f6e07e0d13f
[INFO] running `Command { std: "docker" "start" "-a" "85ea124289549ee20e948b8e31e5bd5c45eee067d955a135f0246f6e07e0d13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85ea124289549ee20e948b8e31e5bd5c45eee067d955a135f0246f6e07e0d13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85ea124289549ee20e948b8e31e5bd5c45eee067d955a135f0246f6e07e0d13f", kill_on_drop: false }`
[INFO] [stdout] 85ea124289549ee20e948b8e31e5bd5c45eee067d955a135f0246f6e07e0d13f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b977c54600199b08eb6b98f81bf6818bb1b8e04607a4ea6c2cbca19c2058b0b9
[INFO] running `Command { std: "docker" "start" "-a" "b977c54600199b08eb6b98f81bf6818bb1b8e04607a4ea6c2cbca19c2058b0b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling libm v0.1.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking euclid v0.19.8
[INFO] [stderr]     Checking lyon_geom v0.12.6
[INFO] [stderr]     Checking gfx_core v0.9.1
[INFO] [stderr]     Checking lyon_path v0.13.1
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking matrixmultiply v0.2.2
[INFO] [stderr]     Checking glyph_brush_layout v0.1.6
[INFO] [stderr]     Checking minimp3 v0.3.3
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking gfx_device_gl v0.16.1
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking gilrs-core v0.2.2
[INFO] [stderr]     Checking alga v0.9.1
[INFO] [stderr]     Checking lyon_algorithms v0.13.1
[INFO] [stderr]     Checking lyon_tessellation v0.13.1
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking twox-hash v1.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]     Checking claxon v0.3.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking mint v0.5.1
[INFO] [stderr]     Checking gilrs v0.7.1
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]     Checking glyph_brush v0.4.3
[INFO] [stderr]     Checking nalgebra v0.18.0
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking lyon v0.13.1
[INFO] [stderr]     Checking gfx v0.18.1
[INFO] [stderr]    Compiling smart-default v0.5.2
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling ggez v0.5.0-rc.2
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking winit v0.19.1
[INFO] [stderr]     Checking glutin v0.20.0
[INFO] [stderr]     Checking gfx_window_glutin v0.30.0
[INFO] [stderr]     Checking eight_queens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextBuilder`
[INFO] [stdout]  --> src/board.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ggez::{Context, ContextBuilder, GameResult, graphics};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextBuilder`
[INFO] [stdout]  --> src/board.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ggez::{Context, ContextBuilder, GameResult, graphics};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size` and `conflicts` are never read
[INFO] [stdout]   --> src/board.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Board {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     pub size: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |     pub blocks: Blocks,
[INFO] [stdout] 24 |     pub conflicts: i32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]   --> src/board.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn initialize_queens(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]    --> src/board.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl Blocks {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn initialize_queens(&mut self, size: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `state` and `attacked` are never read
[INFO] [stdout]    --> src/board.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct Block {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 155 |     pub state: BlockState,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 156 |     pub attacked: bool,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Block` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `queen` is never used
[INFO] [stdout]    --> src/board.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Block {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 162 |     pub fn queen() -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Queen` is never constructed
[INFO] [stdout]    --> src/board.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub enum BlockState {
[INFO] [stdout]     |          ---------- variant in this enum
[INFO] [stdout] 204 |     Empty,
[INFO] [stdout] 205 |     Queen,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         self.board.draw(ctx);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let _ = self.board.draw(ctx);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size` and `conflicts` are never read
[INFO] [stdout]   --> src/board.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Board {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     pub size: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |     pub blocks: Blocks,
[INFO] [stdout] 24 |     pub conflicts: i32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]   --> src/board.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn initialize_queens(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]    --> src/board.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl Blocks {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn initialize_queens(&mut self, size: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `state` and `attacked` are never read
[INFO] [stdout]    --> src/board.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct Block {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 155 |     pub state: BlockState,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 156 |     pub attacked: bool,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Block` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `queen` is never used
[INFO] [stdout]    --> src/board.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Block {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 162 |     pub fn queen() -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Queen` is never constructed
[INFO] [stdout]    --> src/board.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub enum BlockState {
[INFO] [stdout]     |          ---------- variant in this enum
[INFO] [stdout] 204 |     Empty,
[INFO] [stdout] 205 |     Queen,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         self.board.draw(ctx);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let _ = self.board.draw(ctx);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "b977c54600199b08eb6b98f81bf6818bb1b8e04607a4ea6c2cbca19c2058b0b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b977c54600199b08eb6b98f81bf6818bb1b8e04607a4ea6c2cbca19c2058b0b9", kill_on_drop: false }`
[INFO] [stdout] b977c54600199b08eb6b98f81bf6818bb1b8e04607a4ea6c2cbca19c2058b0b9
[INFO] checking AlecGoncharow/eight_queens against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlecGoncharow%2Feight_queens" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlecGoncharow/eight_queens on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlecGoncharow/eight_queens
[INFO] finished tweaking git repo https://github.com/AlecGoncharow/eight_queens
[INFO] tweaked toml for git repo https://github.com/AlecGoncharow/eight_queens written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/AlecGoncharow/eight_queens 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd35b76494fdaf8b6f2fb070dc88a4e1bc1e1eab31922023282c3b8831908fe6
[INFO] running `Command { std: "docker" "start" "-a" "bd35b76494fdaf8b6f2fb070dc88a4e1bc1e1eab31922023282c3b8831908fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd35b76494fdaf8b6f2fb070dc88a4e1bc1e1eab31922023282c3b8831908fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd35b76494fdaf8b6f2fb070dc88a4e1bc1e1eab31922023282c3b8831908fe6", kill_on_drop: false }`
[INFO] [stdout] bd35b76494fdaf8b6f2fb070dc88a4e1bc1e1eab31922023282c3b8831908fe6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4836ee68e8d2fec668138e9bc7a48c543934b1232465e1e02faea6d863accefa
[INFO] running `Command { std: "docker" "start" "-a" "4836ee68e8d2fec668138e9bc7a48c543934b1232465e1e02faea6d863accefa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling libm v0.1.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking euclid v0.19.8
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking lyon_geom v0.12.6
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking glyph_brush_layout v0.1.6
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking matrixmultiply v0.2.2
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]     Checking lyon_path v0.13.1
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking minimp3 v0.3.3
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking lyon_tessellation v0.13.1
[INFO] [stderr]     Checking gfx_core v0.9.1
[INFO] [stderr]     Checking lyon_algorithms v0.13.1
[INFO] [stderr]     Checking gilrs-core v0.2.2
[INFO] [stderr]     Checking alga v0.9.1
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking twox-hash v1.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking claxon v0.3.3
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking mint v0.5.1
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking gfx_device_gl v0.16.1
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking gilrs v0.7.1
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]     Checking nalgebra v0.18.0
[INFO] [stderr]     Checking gfx v0.18.1
[INFO] [stderr]     Checking glyph_brush v0.4.3
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr]     Checking lyon v0.13.1
[INFO] [stderr]    Compiling smart-default v0.5.2
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]    Compiling ggez v0.5.0-rc.2
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking winit v0.19.1
[INFO] [stderr]     Checking glutin v0.20.0
[INFO] [stderr]     Checking gfx_window_glutin v0.30.0
[INFO] [stderr]     Checking eight_queens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextBuilder`
[INFO] [stdout]  --> src/board.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ggez::{Context, ContextBuilder, GameResult, graphics};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextBuilder`
[INFO] [stdout]  --> src/board.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ggez::{Context, ContextBuilder, GameResult, graphics};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size` and `conflicts` are never read
[INFO] [stdout]   --> src/board.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Board {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     pub size: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |     pub blocks: Blocks,
[INFO] [stdout] 24 |     pub conflicts: i32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]   --> src/board.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn initialize_queens(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]    --> src/board.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl Blocks {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn initialize_queens(&mut self, size: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `state` and `attacked` are never read
[INFO] [stdout]    --> src/board.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct Block {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 155 |     pub state: BlockState,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 156 |     pub attacked: bool,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Block` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `queen` is never used
[INFO] [stdout]    --> src/board.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Block {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 162 |     pub fn queen() -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Queen` is never constructed
[INFO] [stdout]    --> src/board.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub enum BlockState {
[INFO] [stdout]     |          ---------- variant in this enum
[INFO] [stdout] 204 |     Empty,
[INFO] [stdout] 205 |     Queen,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         self.board.draw(ctx);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let _ = self.board.draw(ctx);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size` and `conflicts` are never read
[INFO] [stdout]   --> src/board.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Board {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 22 |     pub size: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |     pub blocks: Blocks,
[INFO] [stdout] 24 |     pub conflicts: i32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]   --> src/board.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn initialize_queens(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stdout]    --> src/board.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl Blocks {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn initialize_queens(&mut self, size: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `state` and `attacked` are never read
[INFO] [stdout]    --> src/board.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct Block {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 155 |     pub state: BlockState,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 156 |     pub attacked: bool,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Block` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `queen` is never used
[INFO] [stdout]    --> src/board.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl Block {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 162 |     pub fn queen() -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Queen` is never constructed
[INFO] [stdout]    --> src/board.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub enum BlockState {
[INFO] [stdout]     |          ---------- variant in this enum
[INFO] [stdout] 204 |     Empty,
[INFO] [stdout] 205 |     Queen,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         self.board.draw(ctx);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let _ = self.board.draw(ctx);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 41s
[INFO] running `Command { std: "docker" "inspect" "4836ee68e8d2fec668138e9bc7a48c543934b1232465e1e02faea6d863accefa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4836ee68e8d2fec668138e9bc7a48c543934b1232465e1e02faea6d863accefa", kill_on_drop: false }`
[INFO] [stdout] 4836ee68e8d2fec668138e9bc7a48c543934b1232465e1e02faea6d863accefa