[INFO] fetching crate vari 0.2.1...
[INFO] documenting vari-0.2.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate vari 0.2.1 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate vari 0.2.1 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 vari 0.2.1
[INFO] finished tweaking crates.io crate vari 0.2.1
[INFO] tweaked toml for crates.io crate vari 0.2.1 written to /workspace/builds/worker-16/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 5d80b7ba21bfd1b6f44b51a3decf707dc23f3c7e218a21751d9d594f21a4c24a
[INFO] running `Command { std: "docker" "start" "-a" "5d80b7ba21bfd1b6f44b51a3decf707dc23f3c7e218a21751d9d594f21a4c24a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d80b7ba21bfd1b6f44b51a3decf707dc23f3c7e218a21751d9d594f21a4c24a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d80b7ba21bfd1b6f44b51a3decf707dc23f3c7e218a21751d9d594f21a4c24a", kill_on_drop: false }`
[INFO] [stdout] 5d80b7ba21bfd1b6f44b51a3decf707dc23f3c7e218a21751d9d594f21a4c24a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 42f2a920b820193762bfdf8fb67c543936516342d0332dddedec6ba081469ac7
[INFO] running `Command { std: "docker" "start" "-a" "42f2a920b820193762bfdf8fb67c543936516342d0332dddedec6ba081469ac7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]  Documenting vari v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `Command { std: "docker" "inspect" "42f2a920b820193762bfdf8fb67c543936516342d0332dddedec6ba081469ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f2a920b820193762bfdf8fb67c543936516342d0332dddedec6ba081469ac7", kill_on_drop: false }`
[INFO] [stdout] 42f2a920b820193762bfdf8fb67c543936516342d0332dddedec6ba081469ac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] ed8b7f0930823ad3f56adf4459d8b8eeb2c3de9938fb6c223352d3c38bcb276d
[INFO] running `Command { std: "docker" "start" "-a" "ed8b7f0930823ad3f56adf4459d8b8eeb2c3de9938fb6c223352d3c38bcb276d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]  Documenting vari v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `Command { std: "docker" "inspect" "ed8b7f0930823ad3f56adf4459d8b8eeb2c3de9938fb6c223352d3c38bcb276d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed8b7f0930823ad3f56adf4459d8b8eeb2c3de9938fb6c223352d3c38bcb276d", kill_on_drop: false }`
[INFO] [stdout] ed8b7f0930823ad3f56adf4459d8b8eeb2c3de9938fb6c223352d3c38bcb276d