[INFO] fetching crate droid 0.1.5...
[INFO] documenting droid-0.1.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate droid 0.1.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate droid 0.1.5 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 crates.io crate droid 0.1.5
[INFO] finished tweaking crates.io crate droid 0.1.5
[INFO] tweaked toml for crates.io crate droid 0.1.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate droid 0.1.5 already has a lockfile, it will not be regenerated
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded bstr v0.2.11
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66484407eac3ec92d40320bf034a9b860a62925b2b9afa01ebadbdccc4c4ffdb
[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" "66484407eac3ec92d40320bf034a9b860a62925b2b9afa01ebadbdccc4c4ffdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66484407eac3ec92d40320bf034a9b860a62925b2b9afa01ebadbdccc4c4ffdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66484407eac3ec92d40320bf034a9b860a62925b2b9afa01ebadbdccc4c4ffdb", kill_on_drop: false }`
[INFO] [stdout] 66484407eac3ec92d40320bf034a9b860a62925b2b9afa01ebadbdccc4c4ffdb
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 899de6fb4b44c12d2ec6786e728722b06a038ff04ac64fe70b86f022dac35af4
[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" "899de6fb4b44c12d2ec6786e728722b06a038ff04ac64fe70b86f022dac35af4", kill_on_drop: false }`
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking h2 v0.2.2
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking hyper v0.13.3
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]  Documenting droid v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.97s
[INFO] running `Command { std: "docker" "inspect" "899de6fb4b44c12d2ec6786e728722b06a038ff04ac64fe70b86f022dac35af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899de6fb4b44c12d2ec6786e728722b06a038ff04ac64fe70b86f022dac35af4", kill_on_drop: false }`
[INFO] [stdout] 899de6fb4b44c12d2ec6786e728722b06a038ff04ac64fe70b86f022dac35af4