[INFO] fetching crate task-rs 0.0.0...
[INFO] documenting task-rs-0.0.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate task-rs 0.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate task-rs 0.0.0 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 crates.io crate task-rs 0.0.0
[INFO] finished tweaking crates.io crate task-rs 0.0.0
[INFO] tweaked toml for crates.io crate task-rs 0.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d98d741f0150f85de1d73f2aa24d8a36dc4caa7b27aa4e637c0a300f902decef
[INFO] running `Command { std: "docker" "start" "-a" "d98d741f0150f85de1d73f2aa24d8a36dc4caa7b27aa4e637c0a300f902decef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d98d741f0150f85de1d73f2aa24d8a36dc4caa7b27aa4e637c0a300f902decef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98d741f0150f85de1d73f2aa24d8a36dc4caa7b27aa4e637c0a300f902decef", kill_on_drop: false }`
[INFO] [stdout] d98d741f0150f85de1d73f2aa24d8a36dc4caa7b27aa4e637c0a300f902decef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 19416973b2c5ac1a9a1e67c70f1ef3918906bd3fbc670ace3fc518c3ded58cd7
[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" "19416973b2c5ac1a9a1e67c70f1ef3918906bd3fbc670ace3fc518c3ded58cd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking iced_core v0.2.1
[INFO] [stderr]     Checking xi-unicode v0.2.1
[INFO] [stderr]    Compiling glam v0.8.7
[INFO] [stderr]     Checking svg_fmt v0.2.1
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking relevant v0.4.2
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]     Checking iced_style v0.1.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking euclid v0.20.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking gfx-hal v0.4.1
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling zerocopy-derive v0.1.4
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr] error: could not compile `x11-dl`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name x11_dl /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/x11-dl-2.18.5/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -Cembed-bitcode=no -C debuginfo=2 -C metadata=fbb29a6425665251 -C extra-filename=-fbb29a6425665251 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-57a7edc7f441d44c.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-4282d97f04dc73a8.rmeta --extern maybe_uninit=/opt/rustwide/target/debug/deps/libmaybe_uninit-1240c9425b03409c.rmeta --cap-lints allow -l dl` (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" "19416973b2c5ac1a9a1e67c70f1ef3918906bd3fbc670ace3fc518c3ded58cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19416973b2c5ac1a9a1e67c70f1ef3918906bd3fbc670ace3fc518c3ded58cd7", kill_on_drop: false }`
[INFO] [stdout] 19416973b2c5ac1a9a1e67c70f1ef3918906bd3fbc670ace3fc518c3ded58cd7