[INFO] fetching crate tabset 0.1.0...
[INFO] documenting tabset-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate tabset 0.1.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate tabset 0.1.0 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 tabset 0.1.0
[INFO] finished tweaking crates.io crate tabset 0.1.0
[INFO] tweaked toml for crates.io crate tabset 0.1.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate crates.io crate tabset 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 4c4733a560fad6cf7c38d3234b554788cf146a61f770659cefece7c1bfc564af
[INFO] running `Command { std: "docker" "start" "-a" "4c4733a560fad6cf7c38d3234b554788cf146a61f770659cefece7c1bfc564af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c4733a560fad6cf7c38d3234b554788cf146a61f770659cefece7c1bfc564af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c4733a560fad6cf7c38d3234b554788cf146a61f770659cefece7c1bfc564af", kill_on_drop: false }`
[INFO] [stdout] 4c4733a560fad6cf7c38d3234b554788cf146a61f770659cefece7c1bfc564af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 1c2d15f2edbc8d71774e65199e8339f9f3f891c2f8ec088509c3b07087f6d4ed
[INFO] running `Command { std: "docker" "start" "-a" "1c2d15f2edbc8d71774e65199e8339f9f3f891c2f8ec088509c3b07087f6d4ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]  Documenting tabset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "1c2d15f2edbc8d71774e65199e8339f9f3f891c2f8ec088509c3b07087f6d4ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2d15f2edbc8d71774e65199e8339f9f3f891c2f8ec088509c3b07087f6d4ed", kill_on_drop: false }`
[INFO] [stdout] 1c2d15f2edbc8d71774e65199e8339f9f3f891c2f8ec088509c3b07087f6d4ed