[INFO] cloning repository https://github.com/eggmund/sort_visualiser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eggmund/sort_visualiser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feggmund%2Fsort_visualiser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feggmund%2Fsort_visualiser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0de699710f19dd22525129fadf996d4bbdf0fff0
[INFO] documenting eggmund/sort_visualiser 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%2Feggmund%2Fsort_visualiser" "/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/eggmund/sort_visualiser 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/eggmund/sort_visualiser
[INFO] finished tweaking git repo https://github.com/eggmund/sort_visualiser
[INFO] tweaked toml for git repo https://github.com/eggmund/sort_visualiser written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/eggmund/sort_visualiser 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 cmake v0.1.40
[INFO] [stderr]   Downloaded shaderc v0.6.1
[INFO] [stderr]   Downloaded cc v1.0.37
[INFO] [stderr]   Downloaded rustc-demangle v0.1.15
[INFO] [stderr]   Downloaded autocfg v0.1.4
[INFO] [stderr]   Downloaded backtrace v0.3.30
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[INFO] [stderr]   Downloaded spin v0.5.0
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[INFO] [stderr]   Downloaded moltenvk_deps v0.1.6
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[INFO] [stderr]   Downloaded pistoncore-input v0.24.0
[INFO] [stderr]   Downloaded objc_id v0.1.1
[INFO] [stderr]   Downloaded clipboard-win v2.2.0
[INFO] [stderr]   Downloaded conrod_derive v0.68.0
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[INFO] [stderr]   Downloaded stb_truetype v0.2.6
[INFO] [stderr]   Downloaded vk-sys v0.5.0
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[INFO] [stderr]   Downloaded getrandom v0.1.6
[INFO] [stderr]   Downloaded serde v1.0.92
[INFO] [stderr]   Downloaded lyon v0.14.1
[INFO] [stderr]   Downloaded syn v0.14.9
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[INFO] [stderr]   Downloaded rustc-hash v1.0.1
[INFO] [stderr]   Downloaded socket2 v0.3.9
[INFO] [stderr]   Downloaded nannou v0.12.0
[INFO] [stderr]   Downloaded wayland-protocols v0.23.6
[INFO] [stderr]   Downloaded petgraph v0.4.13
[INFO] [stderr]   Downloaded num-rational v0.2.2
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded lyon_algorithms v0.14.0
[INFO] [stderr]   Downloaded rayon v1.2.0
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[INFO] [stderr]   Downloaded sample v0.10.0
[INFO] [stderr]   Downloaded smithay-clipboard v0.3.6
[INFO] [stderr]   Downloaded instant v0.1.1
[INFO] [stderr]   Downloaded wayland-client v0.23.6
[INFO] [stderr]   Downloaded lyon_tessellation v0.14.1
[INFO] [stderr]   Downloaded euclid v0.20.3
[INFO] [stderr]   Downloaded metal v0.17.1
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[INFO] [stderr]   Downloaded lyon_path v0.14.0
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[INFO] [stderr]   Downloaded pbr v1.0.1
[INFO] [stderr]   Downloaded curl v0.4.22
[INFO] [stderr]   Downloaded shaderc-sys v0.6.1
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[INFO] [stderr]   Downloaded ucd-util v0.1.5
[INFO] [stderr]   Downloaded nom v3.2.1
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[INFO] [stderr]   Downloaded png v0.14.1
[INFO] [stderr]   Downloaded objc_exception v0.1.1
[INFO] [stderr]   Downloaded downcast-rs v1.0.4
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded daggy v0.5.0
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[INFO] [stderr]   Downloaded crossbeam v0.7.1
[INFO] [stderr]   Downloaded cocoa v0.18.4
[INFO] [stderr]   Downloaded x11-dl v2.18.3
[INFO] [stderr]   Downloaded clang-sys v0.21.2
[INFO] [stderr]   Downloaded env_logger v0.4.3
[INFO] [stderr]   Downloaded cpal v0.10.0
[INFO] [stderr]   Downloaded wayland-commons v0.23.6
[INFO] [stderr]   Downloaded copypasta v0.6.1
[INFO] [stderr]   Downloaded num v0.2.0
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[INFO] [stderr]   Downloaded conrod_winit v0.68.0
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[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 66b7c49451fcfb70aea5bf07580d9eb7d87ec51518d03a2a7c2d43dc70599341
[INFO] running `Command { std: "docker" "start" "-a" "66b7c49451fcfb70aea5bf07580d9eb7d87ec51518d03a2a7c2d43dc70599341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66b7c49451fcfb70aea5bf07580d9eb7d87ec51518d03a2a7c2d43dc70599341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b7c49451fcfb70aea5bf07580d9eb7d87ec51518d03a2a7c2d43dc70599341", kill_on_drop: false }`
[INFO] [stdout] 66b7c49451fcfb70aea5bf07580d9eb7d87ec51518d03a2a7c2d43dc70599341
[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] [stdout] cefa320db7d1f70e30ff2ecccb3db24b0c13b646643f5ff0b57b8295aad4ebc3
[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" "cefa320db7d1f70e30ff2ecccb3db24b0c13b646643f5ff0b57b8295aad4ebc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling vulkano v0.16.0
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking vk-sys v0.5.0
[INFO] [stderr]     Checking half v1.4.0
[INFO] [stderr]     Checking instant v0.1.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]     Checking notosans v0.1.0
[INFO] [stderr]     Checking sample v0.10.0
[INFO] [stderr]     Checking conrod_winit v0.68.0
[INFO] [stderr]     Checking radix v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking piston-viewport v0.5.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking daggy v0.6.0
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling shaderc-sys v0.6.1
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking backtrace v0.3.30
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking euclid v0.20.3
[INFO] [stderr]     Checking pennereq v0.3.0
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.14.9/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=6562293974f98c77 -C extra-filename=-6562293974f98c77 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1c8cd06d03ec2d01.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a916b5f396001730.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-de12218e15042935.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: System installed library not found.  Falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cefa320db7d1f70e30ff2ecccb3db24b0c13b646643f5ff0b57b8295aad4ebc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefa320db7d1f70e30ff2ecccb3db24b0c13b646643f5ff0b57b8295aad4ebc3", kill_on_drop: false }`
[INFO] [stdout] cefa320db7d1f70e30ff2ecccb3db24b0c13b646643f5ff0b57b8295aad4ebc3