[INFO] fetching crate chan-signal 0.3.3...
[INFO] documenting chan-signal-0.3.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate chan-signal 0.3.3 into /workspace/builds/worker-58/source
[INFO] validating manifest of crates.io crate chan-signal 0.3.3 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chan-signal 0.3.3
[INFO] finished tweaking crates.io crate chan-signal 0.3.3
[INFO] tweaked toml for crates.io crate chan-signal 0.3.3 written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] crate crates.io crate chan-signal 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.14
[INFO] [stderr]   Downloaded libc v0.2.17
[INFO] [stderr]   Downloaded chan v0.1.18
[INFO] [stderr]   Downloaded bit-vec v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10fd36b8e47194b4a8dc7b548888acd6958e9c00bee395a64f9a52ffb984ab66
[INFO] running `Command { std: "docker" "start" "-a" "10fd36b8e47194b4a8dc7b548888acd6958e9c00bee395a64f9a52ffb984ab66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10fd36b8e47194b4a8dc7b548888acd6958e9c00bee395a64f9a52ffb984ab66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10fd36b8e47194b4a8dc7b548888acd6958e9c00bee395a64f9a52ffb984ab66", kill_on_drop: false }`
[INFO] [stdout] 10fd36b8e47194b4a8dc7b548888acd6958e9c00bee395a64f9a52ffb984ab66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1095ade615f5ad0da8b7c98878d3cbd42da18aba3919cf6e6183bb0f395ca0ac
[INFO] running `Command { std: "docker" "start" "-a" "1095ade615f5ad0da8b7c98878d3cbd42da18aba3919cf6e6183bb0f395ca0ac", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking chan v0.1.18
[INFO] [stderr]  Documenting chan-signal v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "1095ade615f5ad0da8b7c98878d3cbd42da18aba3919cf6e6183bb0f395ca0ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1095ade615f5ad0da8b7c98878d3cbd42da18aba3919cf6e6183bb0f395ca0ac", kill_on_drop: false }`
[INFO] [stdout] 1095ade615f5ad0da8b7c98878d3cbd42da18aba3919cf6e6183bb0f395ca0ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 8811d349165bd88774e845acc08a0cc45de69ede0a55be0f530497bb47f0c22d
[INFO] running `Command { std: "docker" "start" "-a" "8811d349165bd88774e845acc08a0cc45de69ede0a55be0f530497bb47f0c22d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking chan v0.1.18
[INFO] [stderr]  Documenting chan-signal v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "8811d349165bd88774e845acc08a0cc45de69ede0a55be0f530497bb47f0c22d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8811d349165bd88774e845acc08a0cc45de69ede0a55be0f530497bb47f0c22d", kill_on_drop: false }`
[INFO] [stdout] 8811d349165bd88774e845acc08a0cc45de69ede0a55be0f530497bb47f0c22d