[INFO] cloning repository https://github.com/ehuss/cargo-prefetch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ehuss/cargo-prefetch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehuss%2Fcargo-prefetch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehuss%2Fcargo-prefetch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08bbc066b608ae849a4ff8c40aa64fa3193f90b0
[INFO] documenting ehuss/cargo-prefetch 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%2Fehuss%2Fcargo-prefetch" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ehuss/cargo-prefetch 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/ehuss/cargo-prefetch
[INFO] finished tweaking git repo https://github.com/ehuss/cargo-prefetch
[INFO] tweaked toml for git repo https://github.com/ehuss/cargo-prefetch written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ehuss/cargo-prefetch 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a656e0fe71116f82570fb6111c548d4dc31cc7af46f6b4168a814c18bd255923
[INFO] running `Command { std: "docker" "start" "-a" "a656e0fe71116f82570fb6111c548d4dc31cc7af46f6b4168a814c18bd255923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a656e0fe71116f82570fb6111c548d4dc31cc7af46f6b4168a814c18bd255923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a656e0fe71116f82570fb6111c548d4dc31cc7af46f6b4168a814c18bd255923", kill_on_drop: false }`
[INFO] [stdout] a656e0fe71116f82570fb6111c548d4dc31cc7af46f6b4168a814c18bd255923
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 66cbb090124da45eb4d9253ab1ebbf4fd3b4e4ec03478512c1fd0fbefa64c5a1
[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" "66cbb090124da45eb4d9253ab1ebbf4fd3b4e4ec03478512c1fd0fbefa64c5a1", 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]    Compiling syn v0.15.31
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking miniz_oxide v0.2.1
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking encoding_rs v0.8.17
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tempfile v3.0.7
[INFO] [stderr]     Checking backtrace v0.3.15
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking openssl-sys v0.9.43
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tokio v0.1.18
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking openssl v0.10.20
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking h2 v0.1.18
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking hyper v0.12.27
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking cookie_store v0.5.1
[INFO] [stderr]     Checking reqwest v0.9.15
[INFO] [stderr]  Documenting cargo-prefetch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.70s
[INFO] running `Command { std: "docker" "inspect" "66cbb090124da45eb4d9253ab1ebbf4fd3b4e4ec03478512c1fd0fbefa64c5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66cbb090124da45eb4d9253ab1ebbf4fd3b4e4ec03478512c1fd0fbefa64c5a1", kill_on_drop: false }`
[INFO] [stdout] 66cbb090124da45eb4d9253ab1ebbf4fd3b4e4ec03478512c1fd0fbefa64c5a1