[INFO] fetching crate ref-mut-n 1.0.1...
[INFO] documenting ref-mut-n-1.0.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate ref-mut-n 1.0.1 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate ref-mut-n 1.0.1 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 ref-mut-n 1.0.1
[INFO] finished tweaking crates.io crate ref-mut-n 1.0.1
[INFO] tweaked toml for crates.io crate ref-mut-n 1.0.1 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate crates.io crate ref-mut-n 1.0.1 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-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] efbda30b4b9729653ce1f184609e45763733a3c51d70d486a93c60680e2d106b
[INFO] running `Command { std: "docker" "start" "-a" "efbda30b4b9729653ce1f184609e45763733a3c51d70d486a93c60680e2d106b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efbda30b4b9729653ce1f184609e45763733a3c51d70d486a93c60680e2d106b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efbda30b4b9729653ce1f184609e45763733a3c51d70d486a93c60680e2d106b", kill_on_drop: false }`
[INFO] [stdout] efbda30b4b9729653ce1f184609e45763733a3c51d70d486a93c60680e2d106b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 83cda264bcab88be1b610cc47239f0ab6d07d06871c21856a7641e953ae42060
[INFO] running `Command { std: "docker" "start" "-a" "83cda264bcab88be1b610cc47239f0ab6d07d06871c21856a7641e953ae42060", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]     Checking quote v1.0.16
[INFO] [stderr]  Documenting ref-mut-n v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `Command { std: "docker" "inspect" "83cda264bcab88be1b610cc47239f0ab6d07d06871c21856a7641e953ae42060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83cda264bcab88be1b610cc47239f0ab6d07d06871c21856a7641e953ae42060", kill_on_drop: false }`
[INFO] [stdout] 83cda264bcab88be1b610cc47239f0ab6d07d06871c21856a7641e953ae42060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 46e94e1ec84e4c4393dc3b662fd07de7786d5f546bebdedd52643068b2139e17
[INFO] running `Command { std: "docker" "start" "-a" "46e94e1ec84e4c4393dc3b662fd07de7786d5f546bebdedd52643068b2139e17", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking quote v1.0.16
[INFO] [stderr]  Documenting ref-mut-n v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.15s
[INFO] running `Command { std: "docker" "inspect" "46e94e1ec84e4c4393dc3b662fd07de7786d5f546bebdedd52643068b2139e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46e94e1ec84e4c4393dc3b662fd07de7786d5f546bebdedd52643068b2139e17", kill_on_drop: false }`
[INFO] [stdout] 46e94e1ec84e4c4393dc3b662fd07de7786d5f546bebdedd52643068b2139e17