[INFO] cloning repository https://github.com/Slowyn/unknown-world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Slowyn/unknown-world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSlowyn%2Funknown-world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSlowyn%2Funknown-world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23abee4089bd1b2686da52d595d7635ed7090fe9
[INFO] documenting Slowyn/unknown-world 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%2FSlowyn%2Funknown-world" "/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/Slowyn/unknown-world 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/Slowyn/unknown-world
[INFO] finished tweaking git repo https://github.com/Slowyn/unknown-world
[INFO] tweaked toml for git repo https://github.com/Slowyn/unknown-world written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Slowyn/unknown-world 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 wayland-commons v0.21.12
[INFO] [stderr]   Downloaded gleam v0.6.17
[INFO] [stderr]   Downloaded cc v1.0.36
[INFO] [stderr]   Downloaded rusttype v0.7.6
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.42.0
[INFO] [stderr]   Downloaded piston v0.42.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.59.0
[INFO] [stderr]   Downloaded wayland-client v0.21.12
[INFO] [stderr]   Downloaded wayland-protocols v0.21.12
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.54.0
[INFO] [stderr]   Downloaded wayland-scanner v0.21.12
[INFO] [stderr]   Downloaded wayland-sys v0.21.12
[INFO] [stderr]   Downloaded pistoncore-input v0.24.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.30.0
[INFO] [stderr]   Downloaded pistoncore-window v0.37.0
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd91c8720e3b000a132f9f8ee9a40bf771634b54793b41e4fd79e7e0e7973078
[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" "cd91c8720e3b000a132f9f8ee9a40bf771634b54793b41e4fd79e7e0e7973078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd91c8720e3b000a132f9f8ee9a40bf771634b54793b41e4fd79e7e0e7973078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd91c8720e3b000a132f9f8ee9a40bf771634b54793b41e4fd79e7e0e7973078", kill_on_drop: false }`
[INFO] [stdout] cd91c8720e3b000a132f9f8ee9a40bf771634b54793b41e4fd79e7e0e7973078
[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" "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] a02b4a0c59e7a2949d42ea6ed317b564aed4483877a374360a285cd57945d62d
[INFO] running `Command { std: "docker" "start" "-a" "a02b4a0c59e7a2949d42ea6ed317b564aed4483877a374360a285cd57945d62d", kill_on_drop: false }`
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]     Checking pistoncore-input v0.24.0
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]     Checking cgmath v0.17.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[INFO] [stderr]     Checking pistoncore-window v0.37.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.42.0
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking piston v0.42.0
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.59.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking glutin v0.19.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.54.0
[INFO] [stderr]  Documenting unknown_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.20s
[INFO] running `Command { std: "docker" "inspect" "a02b4a0c59e7a2949d42ea6ed317b564aed4483877a374360a285cd57945d62d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a02b4a0c59e7a2949d42ea6ed317b564aed4483877a374360a285cd57945d62d", kill_on_drop: false }`
[INFO] [stdout] a02b4a0c59e7a2949d42ea6ed317b564aed4483877a374360a285cd57945d62d