[INFO] fetching crate prettyprint 0.8.1...
[INFO] documenting prettyprint-0.8.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate prettyprint 0.8.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate prettyprint 0.8.1 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 prettyprint 0.8.1
[INFO] finished tweaking crates.io crate prettyprint 0.8.1
[INFO] tweaked toml for crates.io crate prettyprint 0.8.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate prettyprint 0.8.1 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 winapi-util v0.1.4
[INFO] [stderr]   Downloaded which v2.0.1
[INFO] [stderr]   Downloaded plist v0.5.3
[INFO] [stderr]   Downloaded onig v5.0.0
[INFO] [stderr]   Downloaded regex v1.3.6
[INFO] [stderr]   Downloaded bit-vec v0.5.1
[INFO] [stderr]   Downloaded miniz_oxide v0.3.6
[INFO] [stderr]   Downloaded flate2 v1.0.14
[INFO] [stderr]   Downloaded hermit-abi v0.1.10
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded termios v0.3.1
[INFO] [stderr]   Downloaded serde_derive v1.0.106
[INFO] [stderr]   Downloaded libloading v0.5.2
[INFO] [stderr]   Downloaded ident_case v1.0.1
[INFO] [stderr]   Downloaded onig_sys v69.2.0
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded backtrace-sys v0.1.35
[INFO] [stderr]   Downloaded error-chain v0.12.2
[INFO] [stderr]   Downloaded bindgen v0.50.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded xml-rs v0.8.1
[INFO] [stderr]   Downloaded serde v1.0.106
[INFO] [stderr]   Downloaded content_inspector v0.2.4
[INFO] [stderr]   Downloaded darling_macro v0.10.2
[INFO] [stderr]   Downloaded directories v2.0.2
[INFO] [stderr]   Downloaded safemem v0.3.3
[INFO] [stderr]   Downloaded darling_core v0.10.2
[INFO] [stderr]   Downloaded fancy-regex v0.3.3
[INFO] [stderr]   Downloaded libc v0.2.68
[INFO] [stderr]   Downloaded strsim v0.9.3
[INFO] [stderr]   Downloaded humantime v2.0.0
[INFO] [stderr]   Downloaded console v0.10.0
[INFO] [stderr]   Downloaded clang-sys v0.28.1
[INFO] [stderr]   Downloaded serde_json v1.0.50
[INFO] [stderr]   Downloaded syntect v4.1.0
[INFO] [stderr]   Downloaded darling v0.10.2
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded itoa v0.4.5
[INFO] [stderr]   Downloaded shell-words v0.1.0
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[INFO] [stderr]   Downloaded bincode v1.2.1
[INFO] [stderr]   Downloaded cexpr v0.3.6
[INFO] [stderr]   Downloaded indexmap v1.3.2
[INFO] [stderr]   Downloaded bit-set v0.5.1
[INFO] [stderr]   Downloaded backtrace v0.3.46
[INFO] [stderr]   Downloaded failure v0.1.7
[INFO] [stderr]   Downloaded ansi_colours v1.0.1
[INFO] [stderr]   Downloaded ryu v1.0.3
[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-2020-08-29" "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] 79a7f24fd0207a46f7647385003b2227264c98bff31efd29de5b2f85a9cdf4c3
[INFO] running `Command { std: "docker" "start" "-a" "79a7f24fd0207a46f7647385003b2227264c98bff31efd29de5b2f85a9cdf4c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79a7f24fd0207a46f7647385003b2227264c98bff31efd29de5b2f85a9cdf4c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79a7f24fd0207a46f7647385003b2227264c98bff31efd29de5b2f85a9cdf4c3", kill_on_drop: false }`
[INFO] [stdout] 79a7f24fd0207a46f7647385003b2227264c98bff31efd29de5b2f85a9cdf4c3
[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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5548df704752b90336d7553066a3b951ea90cfeda0493316d89d00fc47c0ca3e
[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" "5548df704752b90336d7553066a3b951ea90cfeda0493316d89d00fc47c0ca3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking humantime v2.0.0
[INFO] [stderr]     Checking xml-rs v0.8.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling ansi_colours v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking indexmap v1.3.2
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]     Checking console v0.10.0
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]     Checking error-chain v0.12.2
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]     Checking plist v0.5.3
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling onig_sys v69.2.0
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]     Checking syntect v4.1.0
[INFO] [stderr]  Documenting prettyprint v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "5548df704752b90336d7553066a3b951ea90cfeda0493316d89d00fc47c0ca3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5548df704752b90336d7553066a3b951ea90cfeda0493316d89d00fc47c0ca3e", kill_on_drop: false }`
[INFO] [stdout] 5548df704752b90336d7553066a3b951ea90cfeda0493316d89d00fc47c0ca3e