[INFO] cloning repository https://github.com/tiby312/steer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiby312/steer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiby312%2Fsteer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiby312%2Fsteer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f02d57649e4c2caf1c73d7c6d9dfa2f3a5ad329
[INFO] documenting tiby312/steer 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%2Ftiby312%2Fsteer" "/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/tiby312/steer 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/tiby312/steer
[INFO] finished tweaking git repo https://github.com/tiby312/steer
[INFO] tweaked toml for git repo https://github.com/tiby312/steer written to /workspace/builds/worker-9/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] [stderr]     Updating git repository `https://github.com/tiby312/dinotree_alg`
[INFO] [stderr]     Updating git repository `https://github.com/tiby312/duckduckgeo`
[INFO] [stderr]     Updating git repository `https://github.com/tiby312/seq_impulse`
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded retain_mut v0.1.1
[INFO] [stderr]   Downloaded roots v0.0.6
[INFO] [stderr]   Downloaded is_sorted v0.1.1
[INFO] [stderr]   Downloaded more-asserts v0.2.1
[INFO] [stderr]   Downloaded axgeom v1.6.6
[INFO] [stderr]   Downloaded dists v0.3.1
[INFO] [stderr]   Downloaded compt v1.6.1
[INFO] [stderr]   Downloaded primitive-from v1.0.2
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49a40828ad9194ac30cb29e75ffd462039cbbd7dc66f10aeb67b3390866cd22f
[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" "49a40828ad9194ac30cb29e75ffd462039cbbd7dc66f10aeb67b3390866cd22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49a40828ad9194ac30cb29e75ffd462039cbbd7dc66f10aeb67b3390866cd22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49a40828ad9194ac30cb29e75ffd462039cbbd7dc66f10aeb67b3390866cd22f", kill_on_drop: false }`
[INFO] [stdout] 49a40828ad9194ac30cb29e75ffd462039cbbd7dc66f10aeb67b3390866cd22f
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7ddc02af08b2bf78ca8e1a5c5b0c8aea3925a507bf43f01ed03fdfc79fca80a
[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" "f7ddc02af08b2bf78ca8e1a5c5b0c8aea3925a507bf43f01ed03fdfc79fca80a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking primitive-from v1.0.2
[INFO] [stderr]     Checking roots v0.0.6
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking is_sorted v0.1.1
[INFO] [stderr]     Checking compt v1.6.1
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]     Checking pdqselect v0.1.0
[INFO] [stderr]     Checking retain_mut v0.1.1
[INFO] [stderr]     Checking data-encoding v2.3.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking axgeom v1.6.6
[INFO] [stderr]     Checking dists v0.3.1
[INFO] [stderr]     Checking dinotree_alg v0.8.11 (https://github.com/tiby312/dinotree_alg#55b0ba0b)
[INFO] [stderr]     Checking duckduckgeo v0.4.1 (https://github.com/tiby312/duckduckgeo#66f41075)
[INFO] [stderr]     Checking seq_impulse v0.1.0 (https://github.com/tiby312/seq_impulse#cdd7dd0f)
[INFO] [stderr]  Documenting steer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.10s
[INFO] running `Command { std: "docker" "inspect" "f7ddc02af08b2bf78ca8e1a5c5b0c8aea3925a507bf43f01ed03fdfc79fca80a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ddc02af08b2bf78ca8e1a5c5b0c8aea3925a507bf43f01ed03fdfc79fca80a", kill_on_drop: false }`
[INFO] [stdout] f7ddc02af08b2bf78ca8e1a5c5b0c8aea3925a507bf43f01ed03fdfc79fca80a