[INFO] cloning repository https://github.com/j-selby/oxretro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j-selby/oxretro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-selby%2Foxretro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-selby%2Foxretro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e036ccc38bde36404e2df2d6d0f5f372e3cebae6
[INFO] documenting j-selby/oxretro against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-selby%2Foxretro" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j-selby/oxretro on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/j-selby/oxretro
[INFO] finished tweaking git repo https://github.com/j-selby/oxretro
[INFO] tweaked toml for git repo https://github.com/j-selby/oxretro written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/j-selby/oxretro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fps_counter v1.0.0
[INFO] [stderr]   Downloaded winit v0.11.2
[INFO] [stderr]   Downloaded x11-dl v2.17.3
[INFO] [stderr]   Downloaded gleam v0.4.24
[INFO] [stderr]   Downloaded uuid v0.6.1
[INFO] [stderr]   Downloaded gilrs v0.6.0
[INFO] [stderr]   Downloaded bincode v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5edd45a9796c515f13633c76954d5e7a72cbfbeac83f7ca7757a615dbcd8638f
[INFO] running `Command { std: "docker" "start" "-a" "5edd45a9796c515f13633c76954d5e7a72cbfbeac83f7ca7757a615dbcd8638f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5edd45a9796c515f13633c76954d5e7a72cbfbeac83f7ca7757a615dbcd8638f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5edd45a9796c515f13633c76954d5e7a72cbfbeac83f7ca7757a615dbcd8638f", kill_on_drop: false }`
[INFO] [stdout] 5edd45a9796c515f13633c76954d5e7a72cbfbeac83f7ca7757a615dbcd8638f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] be92f76aa4451f0f003bce4489cf97fead924df3ba0c3feabd7e1cfd7f8cd3ec
[INFO] running `Command { std: "docker" "start" "-a" "be92f76aa4451f0f003bce4489cf97fead924df3ba0c3feabd7e1cfd7f8cd3ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling khronos_api v2.1.0
[INFO] [stderr]     Checking token_store v0.1.2
[INFO] [stderr]     Checking serde v1.0.33
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking fps_counter v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling x11-dl v2.17.3
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking shared_library v0.1.8
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking cpal v0.8.0
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]    Compiling serde_derive_internals v0.21.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling glutin v0.13.1
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.33
[INFO] [stderr]     Checking bincode v1.0.0
[INFO] [stderr]     Checking wayland-window v0.13.2
[INFO] [stderr]     Checking winit v0.11.2
[INFO] [stderr]  Documenting oxretro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(vec_remove_item)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(duration_from_micros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `oxretro`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name oxretro src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="audio_cpal"' --cfg 'feature="cpal"' --cfg 'feature="default"' --cfg 'feature="gl"' --cfg 'feature="glutin"' --cfg 'feature="graphics_opengl"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-b51e0ad4cc026436.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-ee79b84ff39a74c2.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-adb7834069142b13.rmeta --extern cpal=/opt/rustwide/target/debug/deps/libcpal-f7ff77cf7e9bd916.rmeta --extern fps_counter=/opt/rustwide/target/debug/deps/libfps_counter-d6d9a369b11b0475.rmeta --extern gl=/opt/rustwide/target/debug/deps/libgl-75ca1e891304f3f2.rmeta --extern glutin=/opt/rustwide/target/debug/deps/libglutin-3ea397fb34d2d61d.rmeta --extern libloading=/opt/rustwide/target/debug/deps/liblibloading-cae4ce88674e26ee.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-bb9b33becc2d2dd2.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-a24fced8b9dbb86f.so --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "be92f76aa4451f0f003bce4489cf97fead924df3ba0c3feabd7e1cfd7f8cd3ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be92f76aa4451f0f003bce4489cf97fead924df3ba0c3feabd7e1cfd7f8cd3ec", kill_on_drop: false }`
[INFO] [stdout] be92f76aa4451f0f003bce4489cf97fead924df3ba0c3feabd7e1cfd7f8cd3ec