[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] testing AlecGoncharow/eight_queens against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlecGoncharow%2Feight_queens" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[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-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlecGoncharow/eight_queens on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zip v0.5.2
[INFO] [stderr]   Downloaded podio v0.1.6
[INFO] [stderr]   Downloaded twox-hash v1.3.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.2
[INFO] [stderr]   Downloaded bzip2 v0.3.3
[INFO] [stderr]   Downloaded memmap v0.7.0
[INFO] [stderr]   Downloaded rustc-hash v1.0.1
[INFO] [stderr]   Downloaded hound v3.4.0
[INFO] [stderr]   Downloaded approx v0.3.2
[INFO] [stderr]   Downloaded hashbrown v0.3.1
[INFO] [stderr]   Downloaded stdweb-internal-runtime v0.1.4
[INFO] [stderr]   Downloaded shared_library v0.1.9
[INFO] [stderr]   Downloaded gfx_window_glutin v0.30.0
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded directories v1.0.2
[INFO] [stderr]   Downloaded rusty-xinput v1.2.0
[INFO] [stderr]   Downloaded glyph_brush v0.4.3
[INFO] [stderr]   Downloaded derivative v1.0.2
[INFO] [stderr]   Downloaded syn v0.15.34
[INFO] [stderr]   Downloaded io-kit-sys v0.1.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.45
[INFO] [stderr]   Downloaded gilrs v0.7.1
[INFO] [stderr]   Downloaded wayland-protocols v0.21.12
[INFO] [stderr]   Downloaded bumpalo v2.4.3
[INFO] [stderr]   Downloaded nix v0.11.0
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.5
[INFO] [stderr]   Downloaded ggez v0.5.0-rc.2
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded stdweb v0.4.17
[INFO] [stderr]   Downloaded gif v0.10.2
[INFO] [stderr]   Downloaded gfx v0.18.1
[INFO] [stderr]   Downloaded draw_state v0.8.0
[INFO] [stderr]   Downloaded gfx_core v0.9.1
[INFO] [stderr]   Downloaded gfx_device_gl v0.16.1
[INFO] [stderr]   Downloaded stdweb v0.1.3
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded image v0.21.2
[INFO] [stderr]   Downloaded lyon v0.13.1
[INFO] [stderr]   Downloaded bindgen v0.32.3
[INFO] [stderr]   Downloaded nalgebra v0.18.0
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded lyon_tessellation v0.13.1
[INFO] [stderr]   Downloaded libm v0.1.3
[INFO] [stderr]   Downloaded nom v3.2.1
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded quote v0.4.2
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded bzip2-sys v0.1.7
[INFO] [stderr]   Downloaded gilrs-core v0.2.2
[INFO] [stderr]   Downloaded tiff v0.2.2
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.45
[INFO] [stderr]   Downloaded euclid v0.19.8
[INFO] [stderr]   Downloaded lyon_geom v0.12.6
[INFO] [stderr]   Downloaded cgmath v0.14.1
[INFO] [stderr]   Downloaded claxon v0.3.3
[INFO] [stderr]   Downloaded clang-sys v0.21.2
[INFO] [stderr]   Downloaded generic-array v0.12.0
[INFO] [stderr]   Downloaded rodio v0.8.1
[INFO] [stderr]   Downloaded same-file v1.0.4
[INFO] [stderr]   Downloaded core-graphics v0.17.3
[INFO] [stderr]   Downloaded stdweb-internal-macros v0.2.7
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.45
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.45
[INFO] [stderr]   Downloaded pulldown-cmark v0.2.0
[INFO] [stderr]   Downloaded gleam v0.6.17
[INFO] [stderr]   Downloaded cgl v0.2.3
[INFO] [stderr]   Downloaded glutin_glx_sys v0.1.5
[INFO] [stderr]   Downloaded gl_generator v0.11.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded lyon_algorithms v0.13.1
[INFO] [stderr]   Downloaded matrixmultiply v0.2.2
[INFO] [stderr]   Downloaded typenum v1.10.0
[INFO] [stderr]   Downloaded alsa-sys v0.1.2
[INFO] [stderr]   Downloaded core-foundation-sys v0.5.1
[INFO] [stderr]   Downloaded memchr v1.0.2
[INFO] [stderr]   Downloaded cexpr v0.2.3
[INFO] [stderr]   Downloaded termion v1.5.2
[INFO] [stderr]   Downloaded env_logger v0.4.3
[INFO] [stderr]   Downloaded coreaudio-rs v0.9.1
[INFO] [stderr]   Downloaded winapi-util v0.1.2
[INFO] [stderr]   Downloaded xdg v2.2.0
[INFO] [stderr]   Downloaded wayland-scanner v0.21.12
[INFO] [stderr]   Downloaded dlib v0.4.1
[INFO] [stderr]   Downloaded gfx_gl v0.6.0
[INFO] [stderr]   Downloaded stdweb-derive v0.5.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.45
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded png v0.14.1
[INFO] [stderr]   Downloaded lzw v0.10.0
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] [stderr]   Downloaded euclid_macros v0.1.0
[INFO] [stderr]   Downloaded lyon_path v0.13.1
[INFO] [stderr]   Downloaded sid v0.5.2
[INFO] [stderr]   Downloaded rawpointer v0.1.0
[INFO] [stderr]   Downloaded mint v0.5.1
[INFO] [stderr]   Downloaded num-complex v0.2.1
[INFO] [stderr]   Downloaded which v1.0.5
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.2
[INFO] [stderr]   Downloaded cocoa v0.18.4
[INFO] [stderr]   Downloaded objc v0.2.6
[INFO] [stderr]   Downloaded byteorder v1.3.1
[INFO] [stderr]   Downloaded downcast-rs v1.0.4
[INFO] [stderr]   Downloaded wayland-commons v0.21.12
[INFO] [stderr]   Downloaded libloading v0.5.1
[INFO] [stderr]   Downloaded base-x v0.2.5
[INFO] [stderr]   Downloaded glutin_egl_sys v0.1.3
[INFO] [stderr]   Downloaded glutin_gles2_sys v0.1.3
[INFO] [stderr]   Downloaded xi-unicode v0.1.0
[INFO] [stderr]   Downloaded glyph_brush_layout v0.1.6
[INFO] [stderr]   Downloaded num-rational v0.2.1
[INFO] [stderr]   Downloaded alga v0.9.1
[INFO] [stderr]   Downloaded libloading v0.4.3
[INFO] [stderr]   Downloaded lewton v0.9.4
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded slice-deque v0.2.4
[INFO] [stderr]   Downloaded cargo_metadata v0.6.4
[INFO] [stderr]   Downloaded smart-default v0.5.2
[INFO] [stderr]   Downloaded toml v0.5.1
[INFO] [stderr]   Downloaded num-iter v0.1.39
[INFO] [stderr]   Downloaded cpal v0.8.2
[INFO] [stderr]   Downloaded minimp3 v0.3.3
[INFO] [stderr]   Downloaded skeptic v0.13.4
[INFO] [stderr]   Downloaded stb_truetype v0.2.6
[INFO] [stderr]   Downloaded andrew v0.2.1
[INFO] [stderr]   Downloaded xml-rs v0.8.0
[INFO] [stderr]   Downloaded glutin_wgl_sys v0.1.3
[INFO] [stderr]   Downloaded osmesa-sys v0.1.2
[INFO] [stderr]   Downloaded glutin v0.20.0
[INFO] [stderr]   Downloaded ogg v0.7.0
[INFO] [stderr]   Downloaded minimp3-sys v0.3.1
[INFO] [stderr]   Downloaded bytecount v0.4.0
[INFO] [stderr]   Downloaded android_glue v0.2.3
[INFO] [stderr]   Downloaded winit v0.19.1
[INFO] [stderr]   Downloaded remove_dir_all v0.5.1
[INFO] [stderr]   Downloaded smallvec v0.6.9
[INFO] [stderr]   Downloaded line_drawing v0.7.0
[INFO] [stderr]   Downloaded ordered-float v1.0.2
[INFO] [stderr]   Downloaded rusttype v0.7.6
[INFO] [stderr]   Downloaded num_cpus v1.10.0
[INFO] [stderr]   Downloaded walkdir v2.2.7
[INFO] [stderr]   Downloaded wayland-client v0.21.12
[INFO] [stderr]   Downloaded x11-dl v2.18.3
[INFO] [stderr]   Downloaded wayland-sys v0.21.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d41a7fa7338c10c494d8729653abab21924ba2ec77b89ff84102ff8a1f3a7dbf
[INFO] running `Command { std: "docker" "start" "-a" "d41a7fa7338c10c494d8729653abab21924ba2ec77b89ff84102ff8a1f3a7dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d41a7fa7338c10c494d8729653abab21924ba2ec77b89ff84102ff8a1f3a7dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d41a7fa7338c10c494d8729653abab21924ba2ec77b89ff84102ff8a1f3a7dbf", kill_on_drop: false }`
[INFO] [stdout] d41a7fa7338c10c494d8729653abab21924ba2ec77b89ff84102ff8a1f3a7dbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 945175386ffa5d6787af03178c71caf3115a6255910b7cd0e5275271efc0fc0c
[INFO] running `Command { std: "docker" "start" "-a" "945175386ffa5d6787af03178c71caf3115a6255910b7cd0e5275271efc0fc0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rusttype v0.7.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling wayland-sys v0.21.12
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling smallvec v0.6.9
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling downcast-rs v1.0.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling wayland-commons v0.21.12
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling libm v0.1.3
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling sid v0.5.2
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling ogg v0.7.0
[INFO] [stderr]    Compiling slice-deque v0.2.4
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling xi-unicode v0.1.0
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling glyph_brush_layout v0.1.6
[INFO] [stderr]    Compiling minimp3 v0.3.3
[INFO] [stderr]    Compiling matrixmultiply v0.2.2
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling cgmath v0.14.1
[INFO] [stderr]    Compiling lewton v0.9.4
[INFO] [stderr]    Compiling gilrs-core v0.2.2
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling alga v0.9.1
[INFO] [stderr]    Compiling cpal v0.8.2
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling twox-hash v1.3.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling claxon v0.3.3
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling hashbrown v0.3.1
[INFO] [stderr]    Compiling mint v0.5.1
[INFO] [stderr]    Compiling glyph_brush v0.4.3
[INFO] [stderr]    Compiling gilrs v0.7.1
[INFO] [stderr]    Compiling nalgebra v0.18.0
[INFO] [stderr]    Compiling zip v0.5.2
[INFO] [stderr]    Compiling toml v0.5.1
[INFO] [stderr]    Compiling rodio v0.8.1
[INFO] [stderr]    Compiling directories v1.0.2
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.5
[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 winit v0.19.1
[INFO] [stderr]    Compiling smart-default v0.5.2
[INFO] [stderr]    Compiling glutin v0.20.0
[INFO] [stderr]    Compiling euclid v0.19.8
[INFO] [stderr]    Compiling lyon_geom v0.12.6
[INFO] [stderr]    Compiling lyon_path v0.13.1
[INFO] [stderr]    Compiling lyon_tessellation v0.13.1
[INFO] [stderr]    Compiling lyon_algorithms v0.13.1
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.2
[INFO] [stderr]    Compiling lyon v0.13.1
[INFO] [stderr]    Compiling gfx_core v0.9.1
[INFO] [stderr]    Compiling gfx_device_gl v0.16.1
[INFO] [stderr]    Compiling gfx v0.18.1
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling gfx_window_glutin v0.30.0
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling ggez v0.5.0-rc.2
[INFO] [stderr]    Compiling 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: 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6m 30s
[INFO] running `Command { std: "docker" "inspect" "945175386ffa5d6787af03178c71caf3115a6255910b7cd0e5275271efc0fc0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "945175386ffa5d6787af03178c71caf3115a6255910b7cd0e5275271efc0fc0c", kill_on_drop: false }`
[INFO] [stdout] 945175386ffa5d6787af03178c71caf3115a6255910b7cd0e5275271efc0fc0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceb62a91095c7e2051335ffdcb54e27e7fe5fa7438a44cae83f1644f2967b731
[INFO] running `Command { std: "docker" "start" "-a" "ceb62a91095c7e2051335ffdcb54e27e7fe5fa7438a44cae83f1644f2967b731", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "ceb62a91095c7e2051335ffdcb54e27e7fe5fa7438a44cae83f1644f2967b731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb62a91095c7e2051335ffdcb54e27e7fe5fa7438a44cae83f1644f2967b731", kill_on_drop: false }`
[INFO] [stdout] ceb62a91095c7e2051335ffdcb54e27e7fe5fa7438a44cae83f1644f2967b731
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dbd43b47109e561d68e9c7761327bd0c31dec9690eb7155504d02ad19e45ddce
[INFO] running `Command { std: "docker" "start" "-a" "dbd43b47109e561d68e9c7761327bd0c31dec9690eb7155504d02ad19e45ddce", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ContextBuilder`
[INFO] [stderr]  --> src/board.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ggez::{Context, ContextBuilder, GameResult, graphics};
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `size` and `conflicts` are never read
[INFO] [stderr]   --> src/board.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct Board {
[INFO] [stderr]    |            ----- fields in this struct
[INFO] [stderr] 22 |     pub size: usize,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 23 |     pub blocks: Blocks,
[INFO] [stderr] 24 |     pub conflicts: i32,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stderr]   --> src/board.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 65 | impl Board {
[INFO] [stderr]    | ---------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 74 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 82 |     pub fn initialize_queens(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new_from_queens` and `initialize_queens` are never used
[INFO] [stderr]    --> src/board.rs:108:12
[INFO] [stderr]     |
[INFO] [stderr] 101 | impl Blocks {
[INFO] [stderr]     | ----------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 108 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 120 |     pub fn initialize_queens(&mut self, size: usize) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `state` and `attacked` are never read
[INFO] [stderr]    --> src/board.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 154 | pub struct Block {
[INFO] [stderr]     |            ----- fields in this struct
[INFO] [stderr] 155 |     pub state: BlockState,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 156 |     pub attacked: bool,
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Block` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `queen` is never used
[INFO] [stderr]    --> src/board.rs:162:12
[INFO] [stderr]     |
[INFO] [stderr] 161 | impl Block {
[INFO] [stderr]     | ---------- associated function in this implementation
[INFO] [stderr] 162 |     pub fn queen() -> Self {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Queen` is never constructed
[INFO] [stderr]    --> src/board.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 203 | pub enum BlockState {
[INFO] [stderr]     |          ---------- variant in this enum
[INFO] [stderr] 204 |     Empty,
[INFO] [stderr] 205 |     Queen,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `BlockState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |         self.board.draw(ctx);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let _ = self.board.draw(ctx);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `eight_queens` (bin "eight_queens" test) generated 9 warnings (run `cargo fix --bin "eight_queens" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/eight_queens-c69204be67d509c7)
[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" "dbd43b47109e561d68e9c7761327bd0c31dec9690eb7155504d02ad19e45ddce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd43b47109e561d68e9c7761327bd0c31dec9690eb7155504d02ad19e45ddce", kill_on_drop: false }`
[INFO] [stdout] dbd43b47109e561d68e9c7761327bd0c31dec9690eb7155504d02ad19e45ddce
