[INFO] cloning repository https://github.com/PRL-PRG/dejacode-downloader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PRL-PRG/dejacode-downloader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPRL-PRG%2Fdejacode-downloader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPRL-PRG%2Fdejacode-downloader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa78ac1239a4bcaead96b373f3d93fb5ddeb523b
[INFO] documenting PRL-PRG/dejacode-downloader 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%2FPRL-PRG%2Fdejacode-downloader" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PRL-PRG/dejacode-downloader 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/PRL-PRG/dejacode-downloader
[INFO] finished tweaking git repo https://github.com/PRL-PRG/dejacode-downloader
[INFO] tweaked toml for git repo https://github.com/PRL-PRG/dejacode-downloader written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/PRL-PRG/dejacode-downloader 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 curl v0.4.31
[INFO] [stderr]   Downloaded jobserver v0.1.21
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] [stderr]   Downloaded curl-sys v0.4.33+curl-7.71.1
[INFO] [stderr]   Downloaded git2 v0.13.6
[INFO] [stderr]   Downloaded libssh2-sys v0.2.18
[INFO] [stderr]   Downloaded libgit2-sys v0.12.7+1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 049b4edd17d7f3b7184c80e948b4bb9874424ae19f484ca1b377ec8ad8f65ca9
[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" "049b4edd17d7f3b7184c80e948b4bb9874424ae19f484ca1b377ec8ad8f65ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "049b4edd17d7f3b7184c80e948b4bb9874424ae19f484ca1b377ec8ad8f65ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "049b4edd17d7f3b7184c80e948b4bb9874424ae19f484ca1b377ec8ad8f65ca9", kill_on_drop: false }`
[INFO] [stdout] 049b4edd17d7f3b7184c80e948b4bb9874424ae19f484ca1b377ec8ad8f65ca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] ca9d13b84dc53f8c7ac7accd588dd9021156009ed216592ca7af0a0dfc6dec0a
[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" "ca9d13b84dc53f8c7ac7accd588dd9021156009ed216592ca7af0a0dfc6dec0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling curl v0.4.31
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libssh2-sys v0.2.18
[INFO] [stderr]    Compiling curl-sys v0.4.33+curl-7.71.1
[INFO] [stderr]    Compiling libgit2-sys v0.12.7+1.0.0
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking git2 v0.13.6
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking dcd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting dcd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `dcd`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name dcd src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-a358d6b668481e81.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-364c148656283980.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-7f8b1bb6e19a78c3.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-7b97485f27ca5549.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-4e4d20213b903680.rmeta --extern curl=/opt/rustwide/target/debug/deps/libcurl-052a0c7f4845fffa.rmeta --extern git2=/opt/rustwide/target/debug/deps/libgit2-a35c51fcb5850015.rmeta --extern json=/opt/rustwide/target/debug/deps/libjson-358ec06c6fad0497.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-ad7f0b6d3a8ddc02.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-3eb0a4d579d88709.rmeta --cap-lints=warn --crate-version 0.1.0` (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" "ca9d13b84dc53f8c7ac7accd588dd9021156009ed216592ca7af0a0dfc6dec0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca9d13b84dc53f8c7ac7accd588dd9021156009ed216592ca7af0a0dfc6dec0a", kill_on_drop: false }`
[INFO] [stdout] ca9d13b84dc53f8c7ac7accd588dd9021156009ed216592ca7af0a0dfc6dec0a