[INFO] fetching crate cargo-call-stack 0.1.5...
[INFO] documenting cargo-call-stack-0.1.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate cargo-call-stack 0.1.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate cargo-call-stack 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 cargo-call-stack 0.1.5
[INFO] finished tweaking crates.io crate cargo-call-stack 0.1.5
[INFO] tweaked toml for crates.io crate cargo-call-stack 0.1.5 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate cargo-call-stack 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 ar v0.6.2
[INFO] [stderr]   Downloaded xmas-elf v0.6.2
[INFO] [stderr]   Downloaded zero v0.1.2
[INFO] [stderr]   Downloaded nom v5.0.1
[INFO] [stderr]   Downloaded stack-sizes v0.4.0
[INFO] [stderr]   Downloaded cargo-project v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] be1d66fda21203c8c8b7aef63f73daebb6977a316cda3796912ae448ee606234
[INFO] running `Command { std: "docker" "start" "-a" "be1d66fda21203c8c8b7aef63f73daebb6977a316cda3796912ae448ee606234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be1d66fda21203c8c8b7aef63f73daebb6977a316cda3796912ae448ee606234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be1d66fda21203c8c8b7aef63f73daebb6977a316cda3796912ae448ee606234", kill_on_drop: false }`
[INFO] [stdout] be1d66fda21203c8c8b7aef63f73daebb6977a316cda3796912ae448ee606234
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b873fe802ad0c5998d806919bcaed762c8bd03ed3a9937fa98690a1a72e0ed2c
[INFO] running `Command { std: "docker" "start" "-a" "b873fe802ad0c5998d806919bcaed762c8bd03ed3a9937fa98690a1a72e0ed2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]     Checking xmas-elf v0.6.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking ar v0.6.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking rustc-cfg v0.4.0
[INFO] [stderr]     Checking cargo-project v0.2.3
[INFO] [stderr]     Checking stack-sizes v0.4.0
[INFO] [stderr]  Documenting cargo-call-stack v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.11s
[INFO] running `Command { std: "docker" "inspect" "b873fe802ad0c5998d806919bcaed762c8bd03ed3a9937fa98690a1a72e0ed2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b873fe802ad0c5998d806919bcaed762c8bd03ed3a9937fa98690a1a72e0ed2c", kill_on_drop: false }`
[INFO] [stdout] b873fe802ad0c5998d806919bcaed762c8bd03ed3a9937fa98690a1a72e0ed2c