[INFO] fetching crate prometheus-client 0.16.0...
[INFO] documenting prometheus-client-0.16.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate prometheus-client 0.16.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate prometheus-client 0.16.0 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 prometheus-client 0.16.0
[INFO] finished tweaking crates.io crate prometheus-client 0.16.0
[INFO] tweaked toml for crates.io crate prometheus-client 0.16.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate prometheus-client 0.16.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 23eef4ce180096df8da38b799b23e2fdf3d12e8d3d2888836eaa3094a139225e
[INFO] running `Command { std: "docker" "start" "-a" "23eef4ce180096df8da38b799b23e2fdf3d12e8d3d2888836eaa3094a139225e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23eef4ce180096df8da38b799b23e2fdf3d12e8d3d2888836eaa3094a139225e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23eef4ce180096df8da38b799b23e2fdf3d12e8d3d2888836eaa3094a139225e", kill_on_drop: false }`
[INFO] [stdout] 23eef4ce180096df8da38b799b23e2fdf3d12e8d3d2888836eaa3094a139225e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] c9ec9486ead2d39a73de2663cddc30c18afb24ab3b457da087f3699229b82622
[INFO] running `Command { std: "docker" "start" "-a" "c9ec9486ead2d39a73de2663cddc30c18afb24ab3b457da087f3699229b82622", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking dtoa v1.0.1
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling prometheus-client-derive-text-encode v0.2.0
[INFO] [stderr]  Documenting prometheus-client v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.88s
[INFO] running `Command { std: "docker" "inspect" "c9ec9486ead2d39a73de2663cddc30c18afb24ab3b457da087f3699229b82622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ec9486ead2d39a73de2663cddc30c18afb24ab3b457da087f3699229b82622", kill_on_drop: false }`
[INFO] [stdout] c9ec9486ead2d39a73de2663cddc30c18afb24ab3b457da087f3699229b82622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 5da051349783f28d2b336527e470b69f92b4f61ce466ef0f7e0035511085b3f7
[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" "5da051349783f28d2b336527e470b69f92b4f61ce466ef0f7e0035511085b3f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking dtoa v1.0.1
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling prometheus-client-derive-text-encode v0.2.0
[INFO] [stderr]  Documenting prometheus-client v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.91s
[INFO] running `Command { std: "docker" "inspect" "5da051349783f28d2b336527e470b69f92b4f61ce466ef0f7e0035511085b3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5da051349783f28d2b336527e470b69f92b4f61ce466ef0f7e0035511085b3f7", kill_on_drop: false }`
[INFO] [stdout] 5da051349783f28d2b336527e470b69f92b4f61ce466ef0f7e0035511085b3f7