[INFO] fetching crate carboxyl_window 0.0.3...
[INFO] documenting carboxyl_window-0.0.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate carboxyl_window 0.0.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate carboxyl_window 0.0.3 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 crates.io crate carboxyl_window 0.0.3
[INFO] finished tweaking crates.io crate carboxyl_window 0.0.3
[INFO] tweaked toml for crates.io crate carboxyl_window 0.0.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 skeptic v0.6.1
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.3
[INFO] [stderr]   Downloaded freetype-sys v0.3.1
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.20.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.13.1
[INFO] [stderr]   Downloaded piston2d-glium_graphics v0.19.0
[INFO] [stderr]   Downloaded freetype-rs v0.5.0
[INFO] [stderr]   Downloaded elmesque v0.12.0
[INFO] [stderr]   Downloaded piston-shaders_graphics2d v0.1.0
[INFO] [stderr]   Downloaded clock_ticks v0.1.1
[INFO] [stderr]   Downloaded draw_state v0.2.0
[INFO] [stderr]   Downloaded carboxyl v0.2.1
[INFO] [stderr]   Downloaded pistoncore-window v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4c6a0f3f79cf7817b55834072108c0032c9830249910fe5c1ad0b40da246afcf
[INFO] running `Command { std: "docker" "start" "-a" "4c6a0f3f79cf7817b55834072108c0032c9830249910fe5c1ad0b40da246afcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c6a0f3f79cf7817b55834072108c0032c9830249910fe5c1ad0b40da246afcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6a0f3f79cf7817b55834072108c0032c9830249910fe5c1ad0b40da246afcf", kill_on_drop: false }`
[INFO] [stdout] 4c6a0f3f79cf7817b55834072108c0032c9830249910fe5c1ad0b40da246afcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 549afb94daac31197cff9a4f2fe077f900ac742c397f97c67877ed002842d1d7
[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" "549afb94daac31197cff9a4f2fe077f900ac742c397f97c67877ed002842d1d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking piston-float v0.2.0
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking lzw v0.9.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking shader_version v0.2.2
[INFO] [stderr]     Checking clock_ticks v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]     Checking piston-viewport v0.2.0
[INFO] [stderr]     Checking gif v0.7.0
[INFO] [stderr]     Checking pistoncore-input v0.8.1
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]     Checking pistoncore-window v0.14.0
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling skeptic v0.6.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking png v0.4.3
[INFO] [stderr]    Compiling carboxyl v0.2.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking image v0.6.1
[INFO] [stderr]  Documenting carboxyl_window v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.44s
[INFO] running `Command { std: "docker" "inspect" "549afb94daac31197cff9a4f2fe077f900ac742c397f97c67877ed002842d1d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "549afb94daac31197cff9a4f2fe077f900ac742c397f97c67877ed002842d1d7", kill_on_drop: false }`
[INFO] [stdout] 549afb94daac31197cff9a4f2fe077f900ac742c397f97c67877ed002842d1d7