[INFO] cloning repository https://github.com/paulpage/pixel_editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paulpage/pixel_editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulpage%2Fpixel_editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulpage%2Fpixel_editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9eaf9eaa04dd03363dc6f3e9b2662619c8479d22
[INFO] testing paulpage/pixel_editor against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulpage%2Fpixel_editor" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paulpage/pixel_editor on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paulpage/pixel_editor
[INFO] finished tweaking git repo https://github.com/paulpage/pixel_editor
[INFO] tweaked toml for git repo https://github.com/paulpage/pixel_editor written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/paulpage/pixel_editor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cocoa v0.20.2
[INFO] [stderr]   Downloaded libloading v0.6.2
[INFO] [stderr]   Downloaded glutin v0.24.1
[INFO] [stderr]   Downloaded bytemuck v1.3.1
[INFO] [stderr]   Downloaded ordered-float v1.1.0
[INFO] [stderr]   Downloaded image v0.23.8
[INFO] [stderr]   Downloaded nfd v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 979474beede4c4c3a16fdfb5015df927fe1a30f61ee928fbbc6f7a08ec2f8067
[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" "979474beede4c4c3a16fdfb5015df927fe1a30f61ee928fbbc6f7a08ec2f8067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "979474beede4c4c3a16fdfb5015df927fe1a30f61ee928fbbc6f7a08ec2f8067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979474beede4c4c3a16fdfb5015df927fe1a30f61ee928fbbc6f7a08ec2f8067", kill_on_drop: false }`
[INFO] [stdout] 979474beede4c4c3a16fdfb5015df927fe1a30f61ee928fbbc6f7a08ec2f8067
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f2ecb95bef34b0b7724572ccbd26441e68080582b1eaced6cfff5dcadff4d59
[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" "7f2ecb95bef34b0b7724572ccbd26441e68080582b1eaced6cfff5dcadff4d59", kill_on_drop: false }`
[INFO] [stderr]    Compiling nfd v0.0.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.6
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling wayland-commons v0.23.6
[INFO] [stderr]    Compiling calloop v0.4.4
[INFO] [stderr]    Compiling image v0.23.8
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling smithay-client-toolkit v0.6.6
[INFO] [stderr]    Compiling winit v0.22.2
[INFO] [stderr]    Compiling glutin v0.24.1
[INFO] [stderr]    Compiling pixel_editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read /usr/share/fonts/TTF/DejaVuSans.ttf: No such file or directory (os error 2)
[INFO] [stdout]    --> src/graphics.rs:342:47
[INFO] [stdout]     |
[INFO] [stdout] 342 |     let font = rusttype::Font::try_from_bytes(include_bytes!("/usr/share/fonts/TTF/DejaVuSans.ttf") as &[u8]).unwrap();
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ImageHistory`
[INFO] [stdout]  --> src/main.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | use layer::{Image, ImageHistory, Layer};
[INFO] [stdout]   |                    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Image`
[INFO] [stdout]  --> src/gui.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::layer::{Layer, Image};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pixel_editor`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7f2ecb95bef34b0b7724572ccbd26441e68080582b1eaced6cfff5dcadff4d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f2ecb95bef34b0b7724572ccbd26441e68080582b1eaced6cfff5dcadff4d59", kill_on_drop: false }`
[INFO] [stdout] 7f2ecb95bef34b0b7724572ccbd26441e68080582b1eaced6cfff5dcadff4d59