[INFO] fetching crate log4rs 1.0.0-alpha-1...
[INFO] documenting log4rs-1.0.0-alpha-1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate log4rs 1.0.0-alpha-1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate log4rs 1.0.0-alpha-1 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log4rs 1.0.0-alpha-1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate log4rs 1.0.0-alpha-1
[INFO] tweaked toml for crates.io crate log4rs 1.0.0-alpha-1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate log4rs 1.0.0-alpha-1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d00fa26569c81d1cbfa365b7f5ae21ec2d068e4e0e5661e12b67abbb95feb100
[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" "d00fa26569c81d1cbfa365b7f5ae21ec2d068e4e0e5661e12b67abbb95feb100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d00fa26569c81d1cbfa365b7f5ae21ec2d068e4e0e5661e12b67abbb95feb100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00fa26569c81d1cbfa365b7f5ae21ec2d068e4e0e5661e12b67abbb95feb100", kill_on_drop: false }`
[INFO] [stdout] d00fa26569c81d1cbfa365b7f5ae21ec2d068e4e0e5661e12b67abbb95feb100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cae7821df715d65e0a17f5347e181978abc61a58ae25e7eb24792fe8c10070e0
[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" "cae7821df715d65e0a17f5347e181978abc61a58ae25e7eb24792fe8c10070e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking ordered-float v2.0.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]  Documenting log4rs v1.0.0-alpha-1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.52s
[INFO] running `Command { std: "docker" "inspect" "cae7821df715d65e0a17f5347e181978abc61a58ae25e7eb24792fe8c10070e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cae7821df715d65e0a17f5347e181978abc61a58ae25e7eb24792fe8c10070e0", kill_on_drop: false }`
[INFO] [stdout] cae7821df715d65e0a17f5347e181978abc61a58ae25e7eb24792fe8c10070e0