[INFO] fetching crate sync_tools 0.1.1...
[INFO] documenting sync_tools-0.1.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate sync_tools 0.1.1 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate sync_tools 0.1.1 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 sync_tools 0.1.1
[INFO] finished tweaking crates.io crate sync_tools 0.1.1
[INFO] tweaked toml for crates.io crate sync_tools 0.1.1 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 syncpool v0.1.6
[INFO] [stderr]   Downloaded byte_buffer v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] b8200e101633dc950daa34e41f55e7485eee81b2eefbd80694f0eef3890d486f
[INFO] running `Command { std: "docker" "start" "-a" "b8200e101633dc950daa34e41f55e7485eee81b2eefbd80694f0eef3890d486f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8200e101633dc950daa34e41f55e7485eee81b2eefbd80694f0eef3890d486f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8200e101633dc950daa34e41f55e7485eee81b2eefbd80694f0eef3890d486f", kill_on_drop: false }`
[INFO] [stdout] b8200e101633dc950daa34e41f55e7485eee81b2eefbd80694f0eef3890d486f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 150c38b46a50f88a007ac17f2ec62586502ad4cecf752f5afdc0f176a4d9e7ef
[INFO] running `Command { std: "docker" "start" "-a" "150c38b46a50f88a007ac17f2ec62586502ad4cecf752f5afdc0f176a4d9e7ef", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking syncpool v0.1.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking byte_buffer v0.1.3
[INFO] [stderr]  Documenting sync_tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "150c38b46a50f88a007ac17f2ec62586502ad4cecf752f5afdc0f176a4d9e7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "150c38b46a50f88a007ac17f2ec62586502ad4cecf752f5afdc0f176a4d9e7ef", kill_on_drop: false }`
[INFO] [stdout] 150c38b46a50f88a007ac17f2ec62586502ad4cecf752f5afdc0f176a4d9e7ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] 4ca31a0fc9fce973bbe2251e09875929ca8149064d1042ce8468dc93cc6a5b77
[INFO] running `Command { std: "docker" "start" "-a" "4ca31a0fc9fce973bbe2251e09875929ca8149064d1042ce8468dc93cc6a5b77", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking syncpool v0.1.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking byte_buffer v0.1.3
[INFO] [stderr]  Documenting sync_tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "4ca31a0fc9fce973bbe2251e09875929ca8149064d1042ce8468dc93cc6a5b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ca31a0fc9fce973bbe2251e09875929ca8149064d1042ce8468dc93cc6a5b77", kill_on_drop: false }`
[INFO] [stdout] 4ca31a0fc9fce973bbe2251e09875929ca8149064d1042ce8468dc93cc6a5b77