[INFO] fetching crate top-gg 0.1.0-alpha.0...
[INFO] documenting top-gg-0.1.0-alpha.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate top-gg 0.1.0-alpha.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate top-gg 0.1.0-alpha.0 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 top-gg 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate top-gg 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate top-gg 0.1.0-alpha.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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] [stdout] 7da9bedd892119c4b37a6f9419c995c5715b59eb80d8a51dbe5072e2a80871ab
[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" "7da9bedd892119c4b37a6f9419c995c5715b59eb80d8a51dbe5072e2a80871ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7da9bedd892119c4b37a6f9419c995c5715b59eb80d8a51dbe5072e2a80871ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7da9bedd892119c4b37a6f9419c995c5715b59eb80d8a51dbe5072e2a80871ab", kill_on_drop: false }`
[INFO] [stdout] 7da9bedd892119c4b37a6f9419c995c5715b59eb80d8a51dbe5072e2a80871ab
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa4ee0fccde44b000b689dc53f857f0ab7d7edcbd2237e44fbd8030d978c5581
[INFO] running `Command { std: "docker" "start" "-a" "fa4ee0fccde44b000b689dc53f857f0ab7d7edcbd2237e44fbd8030d978c5581", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]  Documenting top-gg v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.80s
[INFO] running `Command { std: "docker" "inspect" "fa4ee0fccde44b000b689dc53f857f0ab7d7edcbd2237e44fbd8030d978c5581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4ee0fccde44b000b689dc53f857f0ab7d7edcbd2237e44fbd8030d978c5581", kill_on_drop: false }`
[INFO] [stdout] fa4ee0fccde44b000b689dc53f857f0ab7d7edcbd2237e44fbd8030d978c5581
