[INFO] cloning repository https://github.com/tripph/piston-sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tripph/piston-sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftripph%2Fpiston-sudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftripph%2Fpiston-sudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2238131bbbb727c3bbe8e9911339aa4bf63ab107
[INFO] checking tripph/piston-sudoku against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftripph%2Fpiston-sudoku" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tripph/piston-sudoku on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tripph/piston-sudoku
[INFO] finished tweaking git repo https://github.com/tripph/piston-sudoku
[INFO] tweaked toml for git repo https://github.com/tripph/piston-sudoku written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/tripph/piston-sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61b49a9b39a7f7bceeb157b9f90a8c558d2d99d381d98b8f2769a519beba4b27
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "61b49a9b39a7f7bceeb157b9f90a8c558d2d99d381d98b8f2769a519beba4b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61b49a9b39a7f7bceeb157b9f90a8c558d2d99d381d98b8f2769a519beba4b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61b49a9b39a7f7bceeb157b9f90a8c558d2d99d381d98b8f2769a519beba4b27", kill_on_drop: false }`
[INFO] [stdout] 61b49a9b39a7f7bceeb157b9f90a8c558d2d99d381d98b8f2769a519beba4b27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acf3c493d6127ecda6763c5bfb4f5b0fb87b03391ffe773c7a73a2908ef6ebc6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "acf3c493d6127ecda6763c5bfb4f5b0fb87b03391ffe773c7a73a2908ef6ebc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking deflate v0.8.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking png v0.16.6
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking piston2d-graphics v0.36.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking glutin_glx_sys v0.1.6
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking image v0.23.6
[INFO] [stderr]     Checking pistoncore-input v0.28.1
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking pistoncore-window v0.45.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.50.0
[INFO] [stderr]     Checking piston v0.50.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.72.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking pistoncore-glutin_window v0.64.0
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Button`, `MouseButton`
[INFO] [stdout]  --> src/gameboard_controller.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use piston::input::{GenericEvent, Button, MouseButton};
[INFO] [stdout]   |                                   ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Button` is imported redundantly
[INFO] [stdout]   --> src/gameboard_controller.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 3  | use piston::input::{GenericEvent, Button, MouseButton};
[INFO] [stdout]    |                                   ------ the item `Button` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 43 |         use piston::input::{Button, Key, MouseButton};
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MouseButton` is imported redundantly
[INFO] [stdout]   --> src/gameboard_controller.rs:43:42
[INFO] [stdout]    |
[INFO] [stdout] 3  | use piston::input::{GenericEvent, Button, MouseButton};
[INFO] [stdout]    |                                           ----------- the item `MouseButton` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 43 |         use piston::input::{Button, Key, MouseButton};
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Button`, `MouseButton`
[INFO] [stdout]  --> src/gameboard_controller.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use piston::input::{GenericEvent, Button, MouseButton};
[INFO] [stdout]   |                                   ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Button` is imported redundantly
[INFO] [stdout]   --> src/gameboard_controller.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 3  | use piston::input::{GenericEvent, Button, MouseButton};
[INFO] [stdout]    |                                   ------ the item `Button` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 43 |         use piston::input::{Button, Key, MouseButton};
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MouseButton` is imported redundantly
[INFO] [stdout]   --> src/gameboard_controller.rs:43:42
[INFO] [stdout]    |
[INFO] [stdout] 3  | use piston::input::{GenericEvent, Button, MouseButton};
[INFO] [stdout]    |                                           ----------- the item `MouseButton` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 43 |         use piston::input::{Button, Key, MouseButton};
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.44s
[INFO] running `Command { std: "docker" "inspect" "acf3c493d6127ecda6763c5bfb4f5b0fb87b03391ffe773c7a73a2908ef6ebc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acf3c493d6127ecda6763c5bfb4f5b0fb87b03391ffe773c7a73a2908ef6ebc6", kill_on_drop: false }`
[INFO] [stdout] acf3c493d6127ecda6763c5bfb4f5b0fb87b03391ffe773c7a73a2908ef6ebc6