[INFO] fetching crate tendril 0.4.3...
[INFO] documenting tendril-0.4.3 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate tendril 0.4.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tendril 0.4.3 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 tendril 0.4.3
[INFO] finished tweaking crates.io crate tendril 0.4.3
[INFO] tweaked toml for crates.io crate tendril 0.4.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate tendril 0.4.3 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 97fe787863adfdc3c1bd111e7802ca2b56968641154d8fe97090ee9d89778c18
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97fe787863adfdc3c1bd111e7802ca2b56968641154d8fe97090ee9d89778c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97fe787863adfdc3c1bd111e7802ca2b56968641154d8fe97090ee9d89778c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97fe787863adfdc3c1bd111e7802ca2b56968641154d8fe97090ee9d89778c18", kill_on_drop: false }`
[INFO] [stdout] 97fe787863adfdc3c1bd111e7802ca2b56968641154d8fe97090ee9d89778c18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a712f047c1f6903ba557c98e65595c7bca093e40a1f0bb880d3b49b933d5116
[INFO] running `Command { std: "docker" "start" "-a" "5a712f047c1f6903ba557c98e65595c7bca093e40a1f0bb880d3b49b933d5116", kill_on_drop: false }`
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]  Documenting tendril v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "5a712f047c1f6903ba557c98e65595c7bca093e40a1f0bb880d3b49b933d5116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a712f047c1f6903ba557c98e65595c7bca093e40a1f0bb880d3b49b933d5116", kill_on_drop: false }`
[INFO] [stdout] 5a712f047c1f6903ba557c98e65595c7bca093e40a1f0bb880d3b49b933d5116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b2fc3f6758fc0c153bd3e4e37d01624af728e7a3e99f1a606c98c9bebb640ae8
[INFO] running `Command { std: "docker" "start" "-a" "b2fc3f6758fc0c153bd3e4e37d01624af728e7a3e99f1a606c98c9bebb640ae8", kill_on_drop: false }`
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]  Documenting tendril v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "b2fc3f6758fc0c153bd3e4e37d01624af728e7a3e99f1a606c98c9bebb640ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2fc3f6758fc0c153bd3e4e37d01624af728e7a3e99f1a606c98c9bebb640ae8", kill_on_drop: false }`
[INFO] [stdout] b2fc3f6758fc0c153bd3e4e37d01624af728e7a3e99f1a606c98c9bebb640ae8