[INFO] fetching crate pitch_calc 0.12.0...
[INFO] documenting pitch_calc-0.12.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate pitch_calc 0.12.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pitch_calc 0.12.0 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 pitch_calc 0.12.0
[INFO] finished tweaking crates.io crate pitch_calc 0.12.0
[INFO] tweaked toml for crates.io crate pitch_calc 0.12.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate pitch_calc 0.12.0 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 rand v0.3.15
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded num-rational v0.1.36
[INFO] [stderr]   Downloaded num v0.1.37
[INFO] [stderr]   Downloaded num-bigint v0.1.37
[INFO] [stderr]   Downloaded num-traits v0.1.37
[INFO] [stderr]   Downloaded num-integer v0.1.34
[INFO] [stderr]   Downloaded libc v0.2.22
[INFO] [stderr]   Downloaded num-complex v0.1.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 74157f366c7c3987d67d686e355b391cfff3215c1d2dac904cb08ec60eb47baf
[INFO] running `Command { std: "docker" "start" "-a" "74157f366c7c3987d67d686e355b391cfff3215c1d2dac904cb08ec60eb47baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74157f366c7c3987d67d686e355b391cfff3215c1d2dac904cb08ec60eb47baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74157f366c7c3987d67d686e355b391cfff3215c1d2dac904cb08ec60eb47baf", kill_on_drop: false }`
[INFO] [stdout] 74157f366c7c3987d67d686e355b391cfff3215c1d2dac904cb08ec60eb47baf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 582086e40d576dd8dca339816b68d933e900ecf19c1b42f12df6e868963e9aa6
[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" "582086e40d576dd8dca339816b68d933e900ecf19c1b42f12df6e868963e9aa6", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]  Documenting pitch_calc v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.17s
[INFO] running `Command { std: "docker" "inspect" "582086e40d576dd8dca339816b68d933e900ecf19c1b42f12df6e868963e9aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "582086e40d576dd8dca339816b68d933e900ecf19c1b42f12df6e868963e9aa6", kill_on_drop: false }`
[INFO] [stdout] 582086e40d576dd8dca339816b68d933e900ecf19c1b42f12df6e868963e9aa6