[INFO] cloning repository https://github.com/bool-rus/beads-and-treads
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bool-rus/beads-and-treads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbool-rus%2Fbeads-and-treads", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbool-rus%2Fbeads-and-treads'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4a7043eedca579a135d97ed7e04a7f21146faa0
[INFO] documenting bool-rus/beads-and-treads against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbool-rus%2Fbeads-and-treads" "/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/bool-rus/beads-and-treads on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bool-rus/beads-and-treads
[INFO] finished tweaking git repo https://github.com/bool-rus/beads-and-treads
[INFO] tweaked toml for git repo https://github.com/bool-rus/beads-and-treads written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bool-rus/beads-and-treads already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded str-buf v1.0.4
[INFO] [stderr]   Downloaded iced_wgpu v0.2.3
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[INFO] [stderr]   Downloaded clipboard_macos v0.1.0
[INFO] [stderr]   Downloaded unicode-vo v0.1.0
[INFO] [stderr]   Downloaded float-cmp v0.5.3
[INFO] [stderr]   Downloaded svgtypes v0.5.0
[INFO] [stderr]   Downloaded wayland-sys v0.27.0
[INFO] [stderr]   Downloaded roxmltree v0.7.3
[INFO] [stderr]   Downloaded simplecss v0.2.0
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.4.6
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[INFO] [stderr]   Downloaded usvg v0.8.0
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[INFO] [stderr]   Downloaded wayland-client v0.27.0
[INFO] [stderr]   Downloaded quick-csv v0.1.6
[INFO] [stderr]   Downloaded xcb v0.9.0
[INFO] [stderr]   Downloaded glam v0.8.7
[INFO] [stderr]   Downloaded gfx-backend-empty v0.4.0
[INFO] [stderr]   Downloaded iced_style v0.1.0
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.11.0
[INFO] [stderr]   Downloaded iced v0.1.1
[INFO] [stderr]   Downloaded harfbuzz-sys v0.3.4
[INFO] [stderr]   Downloaded wayland-commons v0.27.0
[INFO] [stderr]   Downloaded harfbuzz_rs v1.2.0
[INFO] [stderr]   Downloaded gfx-hal v0.4.1
[INFO] [stderr]   Downloaded xmlparser v0.10.0
[INFO] [stderr]   Downloaded rendy-descriptor v0.5.1
[INFO] [stderr]   Downloaded kurbo v0.2.3
[INFO] [stderr]   Downloaded unicode-script v0.3.0
[INFO] [stderr]   Downloaded ttf-parser v0.2.2
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[INFO] [stderr]   Downloaded data-url v0.1.0
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[INFO] [stderr]   Downloaded clipboard_wayland v0.1.1
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[INFO] [stderr]   Downloaded iced_futures v0.1.2
[INFO] [stderr]   Downloaded iced_native v0.2.2
[INFO] [stderr]   Downloaded sw-composite v0.5.10
[INFO] [stderr]   Downloaded gfx-backend-metal v0.4.5
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.4.3
[INFO] [stderr]   Downloaded wgpu-native v0.4.3
[INFO] [stderr]   Downloaded error-code v2.0.1
[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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b3fb9e6b61431ef16ebef2a1d086ffd8cc56ba3ab83159d47a46ac3acefff63
[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" "7b3fb9e6b61431ef16ebef2a1d086ffd8cc56ba3ab83159d47a46ac3acefff63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b3fb9e6b61431ef16ebef2a1d086ffd8cc56ba3ab83159d47a46ac3acefff63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b3fb9e6b61431ef16ebef2a1d086ffd8cc56ba3ab83159d47a46ac3acefff63", kill_on_drop: false }`
[INFO] [stdout] 7b3fb9e6b61431ef16ebef2a1d086ffd8cc56ba3ab83159d47a46ac3acefff63
[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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15ace9e71374245a5369ad2a67f8ad4eecd05a98342f2c0f92e94e90b8b5f22d
[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" "15ace9e71374245a5369ad2a67f8ad4eecd05a98342f2c0f92e94e90b8b5f22d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking xmlparser v0.10.0
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking xi-unicode v0.2.1
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking iced_core v0.2.1
[INFO] [stderr]     Checking unicode-script v0.3.0
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking ttf-parser v0.2.2
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking sw-composite v0.5.10
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]    Compiling glam v0.8.7
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking svg_fmt v0.2.1
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling wayland-sys v0.27.0
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[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
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[INFO] [stderr]     Checking instant v0.1.7
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[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking futures-channel v0.3.5
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[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking rgb v0.8.25
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[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking approx v0.3.2
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[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
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[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking kurbo v0.2.3
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
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[INFO] [stderr]     Checking lyon_geom v0.14.1
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[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking raqote v0.6.4
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking xcursor v0.3.2
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking glyph_brush_layout v0.1.9
[INFO] [stderr]     Checking harfbuzz_rs v1.2.0
[INFO] [stderr]     Checking font-kit v0.4.0
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking usvg v0.8.0
[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-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-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=1f456c9f371048ae -C extra-filename=-1f456c9f371048ae --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-179b18ceb2cbc452.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-de12218e15042935.rmeta --cap-lints allow --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "15ace9e71374245a5369ad2a67f8ad4eecd05a98342f2c0f92e94e90b8b5f22d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15ace9e71374245a5369ad2a67f8ad4eecd05a98342f2c0f92e94e90b8b5f22d", kill_on_drop: false }`
[INFO] [stdout] 15ace9e71374245a5369ad2a67f8ad4eecd05a98342f2c0f92e94e90b8b5f22d
