[INFO] cloning repository https://github.com/denis-onder/sigma-ssg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/denis-onder/sigma-ssg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenis-onder%2Fsigma-ssg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenis-onder%2Fsigma-ssg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4daf974111eaad859b7efebe592fd64435ec0b6b
[INFO] documenting denis-onder/sigma-ssg 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%2Fdenis-onder%2Fsigma-ssg" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/denis-onder/sigma-ssg 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/denis-onder/sigma-ssg
[INFO] finished tweaking git repo https://github.com/denis-onder/sigma-ssg
[INFO] tweaked toml for git repo https://github.com/denis-onder/sigma-ssg written to /workspace/builds/worker-8/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 entities v1.0.1
[INFO] [stderr]   Downloaded sass-rs v0.2.2
[INFO] [stderr]   Downloaded shell-words v1.0.0
[INFO] [stderr]   Downloaded typed-arena v1.7.0
[INFO] [stderr]   Downloaded sass-sys v0.4.21
[INFO] [stderr]   Downloaded podio v0.1.7
[INFO] [stderr]   Downloaded unicode_categories v0.1.1
[INFO] [stderr]   Downloaded twoway v0.2.1
[INFO] [stderr]   Downloaded quick-error v2.0.0
[INFO] [stderr]   Downloaded handlebars v3.4.0
[INFO] [stderr]   Downloaded transformation-pipeline v0.1.0
[INFO] [stderr]   Downloaded zip v0.2.8
[INFO] [stderr]   Downloaded unzip v0.1.0
[INFO] [stderr]   Downloaded bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]   Downloaded comrak v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] a9f8c3a7143f5e2ae00ee31cab330d898f649df6e731e6fc1d0a40be28da019a
[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" "a9f8c3a7143f5e2ae00ee31cab330d898f649df6e731e6fc1d0a40be28da019a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9f8c3a7143f5e2ae00ee31cab330d898f649df6e731e6fc1d0a40be28da019a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f8c3a7143f5e2ae00ee31cab330d898f649df6e731e6fc1d0a40be28da019a", kill_on_drop: false }`
[INFO] [stdout] a9f8c3a7143f5e2ae00ee31cab330d898f649df6e731e6fc1d0a40be28da019a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 272c9b41736e85bb79606d237cc5835eaf34774a113bf73e7b65f0feddfc81b3
[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" "272c9b41736e85bb79606d237cc5835eaf34774a113bf73e7b65f0feddfc81b3", kill_on_drop: false }`
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking transformation-pipeline v0.1.0
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking zip v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking unzip v0.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr] error: could not compile `serde_json`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_json --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.57/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=7556c0dfe193d0d0 -C extra-filename=-7556c0dfe193d0d0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern itoa=/opt/rustwide/target/debug/deps/libitoa-154d23ad1bace9f1.rmeta --extern ryu=/opt/rustwide/target/debug/deps/libryu-45f324ebf4a48bc4.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7c18813dd5b3d0b3.rmeta --cap-lints allow --cfg limb_width_64` (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" "272c9b41736e85bb79606d237cc5835eaf34774a113bf73e7b65f0feddfc81b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "272c9b41736e85bb79606d237cc5835eaf34774a113bf73e7b65f0feddfc81b3", kill_on_drop: false }`
[INFO] [stdout] 272c9b41736e85bb79606d237cc5835eaf34774a113bf73e7b65f0feddfc81b3