[INFO] cloning repository https://github.com/SIRS-SIGMOD/SIRS-sampling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SIRS-SIGMOD/SIRS-sampling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSIRS-SIGMOD%2FSIRS-sampling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSIRS-SIGMOD%2FSIRS-sampling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3bc38d7cd617bc76c4dc0523491abd983e9c39d
[INFO] documenting SIRS-SIGMOD/SIRS-sampling 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%2FSIRS-SIGMOD%2FSIRS-sampling" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SIRS-SIGMOD/SIRS-sampling 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/SIRS-SIGMOD/SIRS-sampling
[INFO] finished tweaking git repo https://github.com/SIRS-SIGMOD/SIRS-sampling
[INFO] tweaked toml for git repo https://github.com/SIRS-SIGMOD/SIRS-sampling written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/SIRS-SIGMOD/SIRS-sampling 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 34f9baef3a344934f425f4fa79b0f3e61407246839b6e262c3a6203313aa0582
[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" "34f9baef3a344934f425f4fa79b0f3e61407246839b6e262c3a6203313aa0582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34f9baef3a344934f425f4fa79b0f3e61407246839b6e262c3a6203313aa0582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34f9baef3a344934f425f4fa79b0f3e61407246839b6e262c3a6203313aa0582", kill_on_drop: false }`
[INFO] [stdout] 34f9baef3a344934f425f4fa79b0f3e61407246839b6e262c3a6203313aa0582
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b039b029c9d867a8ca8d913df46bb9aa9b8979c1ec67e09c8f426ea2d04f7dae
[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" "b039b029c9d867a8ca8d913df46bb9aa9b8979c1ec67e09c8f426ea2d04f7dae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking sfmt v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking range_sampling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting range_sampling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `range_sampling`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name range_sampling 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 order_stat=/opt/rustwide/target/debug/deps/liborder_stat-f4f566922794625c.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d5643215c356e1f9.rmeta --extern rand_pcg=/opt/rustwide/target/debug/deps/librand_pcg-7a42e7de425515ec.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d2f67dc1e10aa2fe.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-72c4738849fff042.rmeta --extern sfmt=/opt/rustwide/target/debug/deps/libsfmt-661b39cbbff87d0c.rmeta --extern superslice=/opt/rustwide/target/debug/deps/libsuperslice-06499d2d5e3b75da.rmeta --cap-lints=warn` (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" "b039b029c9d867a8ca8d913df46bb9aa9b8979c1ec67e09c8f426ea2d04f7dae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b039b029c9d867a8ca8d913df46bb9aa9b8979c1ec67e09c8f426ea2d04f7dae", kill_on_drop: false }`
[INFO] [stdout] b039b029c9d867a8ca8d913df46bb9aa9b8979c1ec67e09c8f426ea2d04f7dae