[INFO] cloning repository https://github.com/generalelectrix/piston-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/generalelectrix/piston-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeneralelectrix%2Fpiston-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeneralelectrix%2Fpiston-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1edd802308e988309a8563a8970f0c3f2bd25d8c
[INFO] testing generalelectrix/piston-tutorial against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeneralelectrix%2Fpiston-tutorial" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/generalelectrix/piston-tutorial on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/generalelectrix/piston-tutorial
[INFO] finished tweaking git repo https://github.com/generalelectrix/piston-tutorial
[INFO] tweaked toml for git repo https://github.com/generalelectrix/piston-tutorial written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/generalelectrix/piston-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/PistonDevelopers/sdl2_window`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e2a69e57f5dc634ac1bdf04a6294f3706f3bf5b1456e0c5b6703023b44e084f
[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" "6e2a69e57f5dc634ac1bdf04a6294f3706f3bf5b1456e0c5b6703023b44e084f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e2a69e57f5dc634ac1bdf04a6294f3706f3bf5b1456e0c5b6703023b44e084f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e2a69e57f5dc634ac1bdf04a6294f3706f3bf5b1456e0c5b6703023b44e084f", kill_on_drop: false }`
[INFO] [stdout] 6e2a69e57f5dc634ac1bdf04a6294f3706f3bf5b1456e0c5b6703023b44e084f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7ef72a5172cbdc77aac09374c0523196e9d35a45b2f50dccfd46992989477ce
[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" "d7ef72a5172cbdc77aac09374c0523196e9d35a45b2f50dccfd46992989477ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.1.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling freetype-sys v0.4.0
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling pistoncore-input v0.14.0
[INFO] [stderr]    Compiling piston2d-graphics v0.17.3
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling sdl2 v0.34.3
[INFO] [stderr]    Compiling glutin v0.6.2
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling png v0.5.2
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling freetype-rs v0.11.0
[INFO] [stderr]    Compiling pistoncore-window v0.22.1
[INFO] [stderr]    Compiling pistoncore-event_loop v0.25.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling piston v0.25.1
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling image v0.10.4
[INFO] [stderr]    Compiling wayland-sys v0.5.11
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]    Compiling wayland-kbd v0.3.6
[INFO] [stderr]    Compiling wayland-window v0.2.3
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.32.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.29.0
[INFO] [stderr]    Compiling pistoncore-sdl2_window v0.66.0 (https://github.com/PistonDevelopers/sdl2_window#c55ac30e)
[INFO] [stderr]    Compiling spinning-square v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:52:33
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     let start = ((seg as f64 * seg_width) + marquee);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Sdl2Window: BuildFromWindowSettings` is not satisfied
[INFO] [stdout]   --> src/main.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 |         .build()
[INFO] [stdout]    |          ^^^^^ the trait `BuildFromWindowSettings` is not implemented for `Sdl2Window`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `events` found for struct `Sdl2Window` in the current scope
[INFO] [stdout]   --> src/main.rs:91:29
[INFO] [stdout]    |
[INFO] [stdout] 91 |     let mut events = window.events();
[INFO] [stdout]    |                             ^^^^^^ method not found in `Sdl2Window`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/git/checkouts/sdl2_window-edad0cd615e4303b/c55ac30/src/lib.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Sdl2Window {
[INFO] [stdout]    | ---------------------
[INFO] [stdout]    | |
[INFO] [stdout]    | doesn't satisfy `Sdl2Window: Window`
[INFO] [stdout]    | doesn't satisfy `Sdl2Window: piston::event_loop::Events`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `events` exists but the following trait bounds were not satisfied:
[INFO] [stdout]            `Sdl2Window: Window`
[INFO] [stdout]            which is required by `Sdl2Window: piston::event_loop::Events`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston::event_loop`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use piston::event_loop::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spinning-square`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d7ef72a5172cbdc77aac09374c0523196e9d35a45b2f50dccfd46992989477ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ef72a5172cbdc77aac09374c0523196e9d35a45b2f50dccfd46992989477ce", kill_on_drop: false }`
[INFO] [stdout] d7ef72a5172cbdc77aac09374c0523196e9d35a45b2f50dccfd46992989477ce