[INFO] fetching crate extcap 0.2.0...
[INFO] documenting extcap-0.2.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate extcap 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate extcap 0.2.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extcap 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate extcap 0.2.0
[INFO] tweaked toml for crates.io crate extcap 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate extcap 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive-into-owned v0.1.0
[INFO] [stderr]   Downloaded tokio-serial v4.3.3
[INFO] [stderr]   Downloaded mio-serial v3.3.1
[INFO] [stderr]   Downloaded pcap-file v1.1.1
[INFO] [stderr]   Downloaded simplelog v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8735e3ee250093fe1d3c0de48adfb913ef4cd3fb6c74ee7555a083e8f16ad0be
[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" "8735e3ee250093fe1d3c0de48adfb913ef4cd3fb6c74ee7555a083e8f16ad0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8735e3ee250093fe1d3c0de48adfb913ef4cd3fb6c74ee7555a083e8f16ad0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8735e3ee250093fe1d3c0de48adfb913ef4cd3fb6c74ee7555a083e8f16ad0be", kill_on_drop: false }`
[INFO] [stdout] 8735e3ee250093fe1d3c0de48adfb913ef4cd3fb6c74ee7555a083e8f16ad0be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 325856ff4c9ec52ffc50c3a1e32b7e4266aae5697cc97769b949c3065de0e4a7
[INFO] running `Command { std: "docker" "start" "-a" "325856ff4c9ec52ffc50c3a1e32b7e4266aae5697cc97769b949c3065de0e4a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling derive-into-owned v0.1.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.14
[INFO] [stderr]     Checking thiserror v1.0.14
[INFO] [stderr]     Checking pcap-file v1.1.1
[INFO] [stderr]  Documenting extcap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.22s
[INFO] running `Command { std: "docker" "inspect" "325856ff4c9ec52ffc50c3a1e32b7e4266aae5697cc97769b949c3065de0e4a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "325856ff4c9ec52ffc50c3a1e32b7e4266aae5697cc97769b949c3065de0e4a7", kill_on_drop: false }`
[INFO] [stdout] 325856ff4c9ec52ffc50c3a1e32b7e4266aae5697cc97769b949c3065de0e4a7
