[INFO] cloning repository https://github.com/BSpaceinc/tokio-2568
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BSpaceinc/tokio-2568" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBSpaceinc%2Ftokio-2568", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBSpaceinc%2Ftokio-2568'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5713826daaa3ee05feb2c361056695863adf0915
[INFO] documenting BSpaceinc/tokio-2568 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBSpaceinc%2Ftokio-2568" "/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/BSpaceinc/tokio-2568 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BSpaceinc/tokio-2568
[INFO] finished tweaking git repo https://github.com/BSpaceinc/tokio-2568
[INFO] tweaked toml for git repo https://github.com/BSpaceinc/tokio-2568 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/BSpaceinc/tokio-2568 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d9cfee676b864fac152c847af76ffd7bad2a08d3970699e91dc99d7f4596a4e
[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" "5d9cfee676b864fac152c847af76ffd7bad2a08d3970699e91dc99d7f4596a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d9cfee676b864fac152c847af76ffd7bad2a08d3970699e91dc99d7f4596a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d9cfee676b864fac152c847af76ffd7bad2a08d3970699e91dc99d7f4596a4e", kill_on_drop: false }`
[INFO] [stdout] 5d9cfee676b864fac152c847af76ffd7bad2a08d3970699e91dc99d7f4596a4e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c8a80283ae495e757b4a113e951dfa88dd56f6296e982abb0ad2a51a220bfd1
[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" "5c8a80283ae495e757b4a113e951dfa88dd56f6296e982abb0ad2a51a220bfd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling tokio v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking futures-intrusive v0.4.0
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]  Documenting tokio-2568 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.91s
[INFO] running `Command { std: "docker" "inspect" "5c8a80283ae495e757b4a113e951dfa88dd56f6296e982abb0ad2a51a220bfd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c8a80283ae495e757b4a113e951dfa88dd56f6296e982abb0ad2a51a220bfd1", kill_on_drop: false }`
[INFO] [stdout] 5c8a80283ae495e757b4a113e951dfa88dd56f6296e982abb0ad2a51a220bfd1