[INFO] cloning repository https://github.com/nebulaeandstars/conway
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nebulaeandstars/conway" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebulaeandstars%2Fconway", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebulaeandstars%2Fconway'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 108f639ded38ee48ac66bfd56f8bfaaecb12f955
[INFO] documenting nebulaeandstars/conway against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebulaeandstars%2Fconway" "/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/nebulaeandstars/conway on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nebulaeandstars/conway
[INFO] finished tweaking git repo https://github.com/nebulaeandstars/conway
[INFO] tweaked toml for git repo https://github.com/nebulaeandstars/conway written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/nebulaeandstars/conway already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fcc417e9c3a7164f41a8f7d86d3a9395d5baaea5739edd9ee721311aa5b97ee
[INFO] running `Command { std: "docker" "start" "-a" "1fcc417e9c3a7164f41a8f7d86d3a9395d5baaea5739edd9ee721311aa5b97ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fcc417e9c3a7164f41a8f7d86d3a9395d5baaea5739edd9ee721311aa5b97ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fcc417e9c3a7164f41a8f7d86d3a9395d5baaea5739edd9ee721311aa5b97ee", kill_on_drop: false }`
[INFO] [stdout] 1fcc417e9c3a7164f41a8f7d86d3a9395d5baaea5739edd9ee721311aa5b97ee
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c9df60955c9273c5b68903636ccf4c811fdf26b38d1f54211307724c2ed4b9b
[INFO] running `Command { std: "docker" "start" "-a" "9c9df60955c9273c5b68903636ccf4c811fdf26b38d1f54211307724c2ed4b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]     Checking piston2d-graphics v0.39.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking nom v6.1.2
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking wayland-commons v0.28.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking wayland-cursor v0.28.5
[INFO] [stderr]     Checking wayland-egl v0.28.5
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.77.0
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]     Checking pistoncore-window v0.47.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.52.0
[INFO] [stderr]     Checking piston v0.52.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stderr]     Checking glutin v0.26.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.68.2
[INFO] [stderr]  Documenting conway 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `conway`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name conway 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=/opt/rustwide/target/debug/deps/libpiston-83661bae998179da.rmeta --extern graphics=/opt/rustwide/target/debug/deps/libgraphics-be6582a200437c4d.rmeta --extern opengl_graphics=/opt/rustwide/target/debug/deps/libopengl_graphics-928ad26df12f690c.rmeta --extern glutin_window=/opt/rustwide/target/debug/deps/libglutin_window-8a5918bd1696ceb0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-dc56a505e7d7771e.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-4ce112742a96c483.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9c9df60955c9273c5b68903636ccf4c811fdf26b38d1f54211307724c2ed4b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c9df60955c9273c5b68903636ccf4c811fdf26b38d1f54211307724c2ed4b9b", kill_on_drop: false }`
[INFO] [stdout] 9c9df60955c9273c5b68903636ccf4c811fdf26b38d1f54211307724c2ed4b9b
