[INFO] cloning repository https://github.com/tengrommel/play_ground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tengrommel/play_ground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftengrommel%2Fplay_ground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftengrommel%2Fplay_ground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db813779657c7db5f4e15a6fc52b6af3c1074d36
[INFO] documenting tengrommel/play_ground against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftengrommel%2Fplay_ground" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tengrommel/play_ground on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tengrommel/play_ground
[INFO] finished tweaking git repo https://github.com/tengrommel/play_ground
[INFO] tweaked toml for git repo https://github.com/tengrommel/play_ground written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/tengrommel/play_ground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 453bc8a7aa52dc6653391a0ea02417605b32798a78e903a7852ab9a0fcf87243
[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" "453bc8a7aa52dc6653391a0ea02417605b32798a78e903a7852ab9a0fcf87243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "453bc8a7aa52dc6653391a0ea02417605b32798a78e903a7852ab9a0fcf87243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "453bc8a7aa52dc6653391a0ea02417605b32798a78e903a7852ab9a0fcf87243", kill_on_drop: false }`
[INFO] [stdout] 453bc8a7aa52dc6653391a0ea02417605b32798a78e903a7852ab9a0fcf87243
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "RUSTDOCFLAGS=--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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6637d1931dfe1a63dcef0063b80121c8151fb09e5c999dc71729ea1a1d71d0b9
[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" "6637d1931dfe1a63dcef0063b80121c8151fb09e5c999dc71729ea1a1d71d0b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling khronos_api v3.0.0
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]     Checking shader_version v0.3.0
[INFO] [stderr]     Checking safe-transmute v0.10.1
[INFO] [stderr]     Checking piston-texture v0.6.0
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking piston-viewport v0.5.0
[INFO] [stderr]     Checking rand_jitter v0.1.2
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking approx v0.3.1
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rusttype v0.7.4
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking wayland-sys v0.21.11
[INFO] [stderr]     Checking andrew v0.1.6
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling wayland-scanner v0.21.11
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling wayland-client v0.21.11
[INFO] [stderr]    Compiling wayland-protocols v0.21.11
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking wayland-commons v0.21.11
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.4
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.5
[INFO] [stderr]     Checking pistoncore-input v0.23.0
[INFO] [stderr]     Checking piston-gfx_texture v0.35.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.56.0
[INFO] [stderr]     Checking pistoncore-window v0.35.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.40.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.52.0
[INFO] [stderr]     Checking piston v0.40.0
[INFO] [stderr]     Checking piston_window v0.87.0
[INFO] [stderr]  Documenting play_ground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `snake`
[INFO] [stdout]  --> src/game.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use snake::{Direction, Snake};
[INFO] [stdout]   |     ^^^^^ help: a similar path exists: `crate::snake`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `draw`
[INFO] [stdout]  --> src/game.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use draw::{draw_block, draw_rectangle};
[INFO] [stdout]   |     ^^^^ help: a similar path exists: `crate::draw`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `draw`
[INFO] [stdout]  --> src/snake.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use draw::draw_block;
[INFO] [stdout]   |     ^^^^ help: a similar path exists: `crate::draw`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `play_ground`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name play_ground src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern piston_window=/opt/rustwide/target/debug/deps/libpiston_window-83949a00ef5f2c20.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-6355113079196909.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "6637d1931dfe1a63dcef0063b80121c8151fb09e5c999dc71729ea1a1d71d0b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6637d1931dfe1a63dcef0063b80121c8151fb09e5c999dc71729ea1a1d71d0b9", kill_on_drop: false }`
[INFO] [stdout] 6637d1931dfe1a63dcef0063b80121c8151fb09e5c999dc71729ea1a1d71d0b9