[INFO] cloning repository https://github.com/kmtoki/tetris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kmtoki/tetris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmtoki%2Ftetris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmtoki%2Ftetris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3da5642cd6513d07a0d59e306a0ab68132e97edc
[INFO] documenting kmtoki/tetris 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%2Fkmtoki%2Ftetris" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kmtoki/tetris 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/kmtoki/tetris
[INFO] finished tweaking git repo https://github.com/kmtoki/tetris
[INFO] tweaked toml for git repo https://github.com/kmtoki/tetris written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kmtoki/tetris 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-sys v0.7.8
[INFO] [stderr]   Downloaded rand v0.3.15
[INFO] [stderr]   Downloaded android_glue v0.2.2
[INFO] [stderr]   Downloaded serde_json v0.9.9
[INFO] [stderr]   Downloaded target_build_utils v0.3.0
[INFO] [stderr]   Downloaded cocoa v0.3.3
[INFO] [stderr]   Downloaded gleam v0.2.32
[INFO] [stderr]   Downloaded serde v0.7.15
[INFO] [stderr]   Downloaded dwmapi-sys v0.1.0
[INFO] [stderr]   Downloaded libloading v0.3.4
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded memmap v0.4.0
[INFO] [stderr]   Downloaded fnv v1.0.5
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded lazy_static v0.2.6
[INFO] [stderr]   Downloaded glutin v0.7.4
[INFO] [stderr]   Downloaded user32-sys v0.1.2
[INFO] [stderr]   Downloaded backtrace v0.2.3
[INFO] [stderr]   Downloaded serde v0.9.12
[INFO] [stderr]   Downloaded gcc v0.3.45
[INFO] [stderr]   Downloaded wayland-window v0.4.4
[INFO] [stderr]   Downloaded cfg-if v0.1.0
[INFO] [stderr]   Downloaded winit v0.5.11
[INFO] [stderr]   Downloaded x11-dl v2.12.0
[INFO] [stderr]   Downloaded glium v0.16.0
[INFO] [stderr]   Downloaded cocoa v0.5.2
[INFO] [stderr]   Downloaded wayland-scanner v0.7.8
[INFO] [stderr]   Downloaded gdi32-sys v0.1.1
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] [stderr]   Downloaded log v0.3.7
[INFO] [stderr]   Downloaded fs2 v0.2.5
[INFO] [stderr]   Downloaded objc v0.2.2
[INFO] [stderr]   Downloaded smallvec v0.1.8
[INFO] [stderr]   Downloaded tempfile v2.1.5
[INFO] [stderr]   Downloaded shared_library v0.1.5
[INFO] [stderr]   Downloaded num-traits v0.1.37
[INFO] [stderr]   Downloaded backtrace-sys v0.1.10
[INFO] [stderr]   Downloaded rustc-demangle v0.1.4
[INFO] [stderr]   Downloaded dtoa v0.4.1
[INFO] [stderr]   Downloaded gl_generator v0.5.2
[INFO] [stderr]   Downloaded shell32-sys v0.1.1
[INFO] [stderr]   Downloaded itoa v0.3.1
[INFO] [stderr]   Downloaded dlib v0.3.1
[INFO] [stderr]   Downloaded wayland-client v0.7.8
[INFO] [stderr]   Downloaded xml-rs v0.3.6
[INFO] [stderr]   Downloaded core-graphics v0.4.2
[INFO] [stderr]   Downloaded byteorder v1.0.0
[INFO] [stderr]   Downloaded khronos_api v1.0.0
[INFO] [stderr]   Downloaded core-graphics v0.3.2
[INFO] [stderr]   Downloaded cgl v0.1.5
[INFO] [stderr]   Downloaded wayland-kbd v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c526cdb60774945ec62e5d4ad2dbbb737727e6c0dc371b04838f192c54a1e9a2
[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" "c526cdb60774945ec62e5d4ad2dbbb737727e6c0dc371b04838f192c54a1e9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c526cdb60774945ec62e5d4ad2dbbb737727e6c0dc371b04838f192c54a1e9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c526cdb60774945ec62e5d4ad2dbbb737727e6c0dc371b04838f192c54a1e9a2", kill_on_drop: false }`
[INFO] [stdout] c526cdb60774945ec62e5d4ad2dbbb737727e6c0dc371b04838f192c54a1e9a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 4fb7ae71090109b80b49471c75043b470f962e4bb6fde8323c70d7d392910b4e
[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" "4fb7ae71090109b80b49471c75043b470f962e4bb6fde8323c70d7d392910b4e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling serde v0.9.12
[INFO] [stderr]     Checking lazy_static v0.2.6
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking shared_library v0.1.5
[INFO] [stderr]     Checking x11-dl v2.12.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling target_build_utils v0.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]    Compiling serde_json v0.9.9
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.7.8
[INFO] [stderr]     Checking wayland-client v0.7.8
[INFO] [stderr]     Checking wayland-window v0.4.4
[INFO] [stderr]     Checking wayland-kbd v0.6.3
[INFO] [stderr]     Checking winit v0.5.11
[INFO] [stderr]     Checking glutin v0.7.4
[INFO] [stderr]  Documenting tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.50s
[INFO] running `Command { std: "docker" "inspect" "4fb7ae71090109b80b49471c75043b470f962e4bb6fde8323c70d7d392910b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fb7ae71090109b80b49471c75043b470f962e4bb6fde8323c70d7d392910b4e", kill_on_drop: false }`
[INFO] [stdout] 4fb7ae71090109b80b49471c75043b470f962e4bb6fde8323c70d7d392910b4e