[INFO] fetching crate nirvana 0.0.0...
[INFO] documenting nirvana-0.0.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate nirvana 0.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate nirvana 0.0.0 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 nirvana 0.0.0
[INFO] finished tweaking crates.io crate nirvana 0.0.0
[INFO] tweaked toml for crates.io crate nirvana 0.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 202dd439a7ab4793886e42116bede3cee2971517a59ab0427a0e8f91f789c6ba
[INFO] running `Command { std: "docker" "start" "-a" "202dd439a7ab4793886e42116bede3cee2971517a59ab0427a0e8f91f789c6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "202dd439a7ab4793886e42116bede3cee2971517a59ab0427a0e8f91f789c6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "202dd439a7ab4793886e42116bede3cee2971517a59ab0427a0e8f91f789c6ba", kill_on_drop: false }`
[INFO] [stdout] 202dd439a7ab4793886e42116bede3cee2971517a59ab0427a0e8f91f789c6ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] adda5c1b14805c3149298ddc4d3c834afe18566ea5dde83f49ef3ffcb9baaaba
[INFO] running `Command { std: "docker" "start" "-a" "adda5c1b14805c3149298ddc4d3c834afe18566ea5dde83f49ef3ffcb9baaaba", kill_on_drop: false }`
[INFO] [stderr]  Documenting nirvana v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "adda5c1b14805c3149298ddc4d3c834afe18566ea5dde83f49ef3ffcb9baaaba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adda5c1b14805c3149298ddc4d3c834afe18566ea5dde83f49ef3ffcb9baaaba", kill_on_drop: false }`
[INFO] [stdout] adda5c1b14805c3149298ddc4d3c834afe18566ea5dde83f49ef3ffcb9baaaba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 864d8dd03ea12e90d7658aa6a344a8c8ef514c5b480c64fb21156e6e5600aaef
[INFO] running `Command { std: "docker" "start" "-a" "864d8dd03ea12e90d7658aa6a344a8c8ef514c5b480c64fb21156e6e5600aaef", kill_on_drop: false }`
[INFO] [stderr]  Documenting nirvana v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "864d8dd03ea12e90d7658aa6a344a8c8ef514c5b480c64fb21156e6e5600aaef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "864d8dd03ea12e90d7658aa6a344a8c8ef514c5b480c64fb21156e6e5600aaef", kill_on_drop: false }`
[INFO] [stdout] 864d8dd03ea12e90d7658aa6a344a8c8ef514c5b480c64fb21156e6e5600aaef