[INFO] cloning repository https://github.com/sotrh/wgpu-specs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sotrh/wgpu-specs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsotrh%2Fwgpu-specs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsotrh%2Fwgpu-specs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91dc2201403496af6492a4dc64358af04ae519fa
[INFO] documenting sotrh/wgpu-specs against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsotrh%2Fwgpu-specs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sotrh/wgpu-specs on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sotrh/wgpu-specs
[INFO] finished tweaking git repo https://github.com/sotrh/wgpu-specs
[INFO] tweaked toml for git repo https://github.com/sotrh/wgpu-specs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/sotrh/wgpu-specs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 198d1e45783ad1e7faf0f34f0243ef0a0de35cf8eb7a355ed08d91ab8244b8fb
[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" "198d1e45783ad1e7faf0f34f0243ef0a0de35cf8eb7a355ed08d91ab8244b8fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "198d1e45783ad1e7faf0f34f0243ef0a0de35cf8eb7a355ed08d91ab8244b8fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "198d1e45783ad1e7faf0f34f0243ef0a0de35cf8eb7a355ed08d91ab8244b8fb", kill_on_drop: false }`
[INFO] [stdout] 198d1e45783ad1e7faf0f34f0243ef0a0de35cf8eb7a355ed08d91ab8244b8fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5cce054ab9dff0ce5d06f2f512b5de1aac1044c39b62e6954854e4a209206b5
[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" "e5cce054ab9dff0ce5d06f2f512b5de1aac1044c39b62e6954854e4a209206b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]     Checking copyless v0.1.4
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling wayland-scanner v0.23.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking raw-window-handle v0.1.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[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 rand v0.7.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]     Checking wayland-sys v0.23.5
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking backtrace v0.3.35
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.7
[INFO] [stderr]     Checking relevant v0.4.2
[INFO] [stderr]    Compiling wayland-client v0.23.5
[INFO] [stderr]    Compiling wayland-protocols v0.23.5
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking hibitset v0.6.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking shred v0.9.2
[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 -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=8a2a2f7ec1767a56 -C extra-filename=-8a2a2f7ec1767a56 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e8a62c57741ef4cc.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b602621ca95ec466.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-8e68d9b5a310dbdb.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" "e5cce054ab9dff0ce5d06f2f512b5de1aac1044c39b62e6954854e4a209206b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5cce054ab9dff0ce5d06f2f512b5de1aac1044c39b62e6954854e4a209206b5", kill_on_drop: false }`
[INFO] [stdout] e5cce054ab9dff0ce5d06f2f512b5de1aac1044c39b62e6954854e4a209206b5