[INFO] fetching crate from_remote_derive 0.2.2...
[INFO] documenting from_remote_derive-0.2.2 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate from_remote_derive 0.2.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate from_remote_derive 0.2.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate from_remote_derive 0.2.2
[INFO] finished tweaking crates.io crate from_remote_derive 0.2.2
[INFO] tweaked toml for crates.io crate from_remote_derive 0.2.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate from_remote_derive 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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" "+1.47.0" "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] ab49895eb357aa22b0da9c0802b95a0f22331687b6613d738fffd29cf431bba4
[INFO] running `Command { std: "docker" "start" "-a" "ab49895eb357aa22b0da9c0802b95a0f22331687b6613d738fffd29cf431bba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab49895eb357aa22b0da9c0802b95a0f22331687b6613d738fffd29cf431bba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab49895eb357aa22b0da9c0802b95a0f22331687b6613d738fffd29cf431bba4", kill_on_drop: false }`
[INFO] [stdout] ab49895eb357aa22b0da9c0802b95a0f22331687b6613d738fffd29cf431bba4
[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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6556aee8b372e1d114e5123002256bef488fde7a8b5803af2c12a55f5227ac67
[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" "6556aee8b372e1d114e5123002256bef488fde7a8b5803af2c12a55f5227ac67", kill_on_drop: false }`
[INFO] [stderr]  Documenting from_remote_derive v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "6556aee8b372e1d114e5123002256bef488fde7a8b5803af2c12a55f5227ac67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6556aee8b372e1d114e5123002256bef488fde7a8b5803af2c12a55f5227ac67", kill_on_drop: false }`
[INFO] [stdout] 6556aee8b372e1d114e5123002256bef488fde7a8b5803af2c12a55f5227ac67
