[INFO] fetching crate ig 0.4.2...
[INFO] documenting ig-0.4.2 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate ig 0.4.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ig 0.4.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ig 0.4.2
[INFO] finished tweaking crates.io crate ig 0.4.2
[INFO] tweaked toml for crates.io crate ig 0.4.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate ig 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] e4fef8a04a33db5dc8ae4caf04bfca82a7853f2fc514dffd59d306b8b35950c2
[INFO] running `Command { std: "docker" "start" "-a" "e4fef8a04a33db5dc8ae4caf04bfca82a7853f2fc514dffd59d306b8b35950c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4fef8a04a33db5dc8ae4caf04bfca82a7853f2fc514dffd59d306b8b35950c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4fef8a04a33db5dc8ae4caf04bfca82a7853f2fc514dffd59d306b8b35950c2", kill_on_drop: false }`
[INFO] [stdout] e4fef8a04a33db5dc8ae4caf04bfca82a7853f2fc514dffd59d306b8b35950c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 775ac6fffa081331c159cb0137c0002601ac4dd1426aa7b17850b81ffb40f734
[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" "775ac6fffa081331c159cb0137c0002601ac4dd1426aa7b17850b81ffb40f734", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking unicode-bidi v0.2.6
[INFO] [stderr]     Checking xml-rs v0.3.6
[INFO] [stderr]     Checking xml-rs v0.1.26
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking xmltree v0.3.2
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking url v0.5.10
[INFO] [stderr]     Checking hyper v0.8.1
[INFO] [stderr]  Documenting ig v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.57s
[INFO] running `Command { std: "docker" "inspect" "775ac6fffa081331c159cb0137c0002601ac4dd1426aa7b17850b81ffb40f734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "775ac6fffa081331c159cb0137c0002601ac4dd1426aa7b17850b81ffb40f734", kill_on_drop: false }`
[INFO] [stdout] 775ac6fffa081331c159cb0137c0002601ac4dd1426aa7b17850b81ffb40f734
