[INFO] fetching crate mdconv 0.3.0...
[INFO] documenting mdconv-0.3.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mdconv 0.3.0 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate mdconv 0.3.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdconv 0.3.0
[INFO] finished tweaking crates.io crate mdconv 0.3.0
[INFO] tweaked toml for crates.io crate mdconv 0.3.0 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate crates.io crate mdconv 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0945ef1746e1abebc2619124038aa1d5d0176b5f7994f13a524bf0c59044b84
[INFO] running `Command { std: "docker" "start" "-a" "b0945ef1746e1abebc2619124038aa1d5d0176b5f7994f13a524bf0c59044b84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0945ef1746e1abebc2619124038aa1d5d0176b5f7994f13a524bf0c59044b84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0945ef1746e1abebc2619124038aa1d5d0176b5f7994f13a524bf0c59044b84", kill_on_drop: false }`
[INFO] [stdout] b0945ef1746e1abebc2619124038aa1d5d0176b5f7994f13a524bf0c59044b84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb99c227d3483ae8a3907d9a9739e439f3f3f0d85229533473415b520affc73e
[INFO] running `Command { std: "docker" "start" "-a" "eb99c227d3483ae8a3907d9a9739e439f3f3f0d85229533473415b520affc73e", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pulldown-cmark v0.7.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]  Documenting mdconv v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.14s
[INFO] running `Command { std: "docker" "inspect" "eb99c227d3483ae8a3907d9a9739e439f3f3f0d85229533473415b520affc73e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb99c227d3483ae8a3907d9a9739e439f3f3f0d85229533473415b520affc73e", kill_on_drop: false }`
[INFO] [stdout] eb99c227d3483ae8a3907d9a9739e439f3f3f0d85229533473415b520affc73e