[INFO] fetching crate zipkin 0.4.2...
[INFO] documenting zipkin-0.4.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate zipkin 0.4.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate zipkin 0.4.2 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 zipkin 0.4.2
[INFO] finished tweaking crates.io crate zipkin 0.4.2
[INFO] tweaked toml for crates.io crate zipkin 0.4.2 written to /workspace/builds/worker-15/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 zipkin-types v0.1.0
[INFO] [stderr]   Downloaded zipkin-macros v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] d8236d5b59d79b77e5aecacf518ec22254d6bc8e4a08fb5b0e6ccb4930ea9a32
[INFO] running `Command { std: "docker" "start" "-a" "d8236d5b59d79b77e5aecacf518ec22254d6bc8e4a08fb5b0e6ccb4930ea9a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8236d5b59d79b77e5aecacf518ec22254d6bc8e4a08fb5b0e6ccb4930ea9a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8236d5b59d79b77e5aecacf518ec22254d6bc8e4a08fb5b0e6ccb4930ea9a32", kill_on_drop: false }`
[INFO] [stdout] d8236d5b59d79b77e5aecacf518ec22254d6bc8e4a08fb5b0e6ccb4930ea9a32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] ad4d14e09c11a08cd363254e6f79d1688365fc4c86c8a8281feaef5ba561e146
[INFO] running `Command { std: "docker" "start" "-a" "ad4d14e09c11a08cd363254e6f79d1688365fc4c86c8a8281feaef5ba561e146", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking zipkin-types v0.1.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]  Documenting zipkin v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.11s
[INFO] running `Command { std: "docker" "inspect" "ad4d14e09c11a08cd363254e6f79d1688365fc4c86c8a8281feaef5ba561e146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad4d14e09c11a08cd363254e6f79d1688365fc4c86c8a8281feaef5ba561e146", kill_on_drop: false }`
[INFO] [stdout] ad4d14e09c11a08cd363254e6f79d1688365fc4c86c8a8281feaef5ba561e146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "--all-features" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] fe55c6ef482d72620bc9545022925870da4db122354e0da63ad96a219151cc60
[INFO] running `Command { std: "docker" "start" "-a" "fe55c6ef482d72620bc9545022925870da4db122354e0da63ad96a219151cc60", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling zipkin-macros v0.1.1
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking zipkin-types v0.1.0
[INFO] [stderr]  Documenting zipkin v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.50s
[INFO] running `Command { std: "docker" "inspect" "fe55c6ef482d72620bc9545022925870da4db122354e0da63ad96a219151cc60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe55c6ef482d72620bc9545022925870da4db122354e0da63ad96a219151cc60", kill_on_drop: false }`
[INFO] [stdout] fe55c6ef482d72620bc9545022925870da4db122354e0da63ad96a219151cc60