[INFO] fetching crate libp2p-core 0.22.1...
[INFO] documenting libp2p-core-0.22.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate libp2p-core 0.22.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate libp2p-core 0.22.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-core 0.22.1
[INFO] finished tweaking crates.io crate libp2p-core 0.22.1
[INFO] tweaked toml for crates.io crate libp2p-core 0.22.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aee56aaf5fea8d051bb5388248fee0fd26b543ab6debc692f37ee072f4a0cc5d
[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" "aee56aaf5fea8d051bb5388248fee0fd26b543ab6debc692f37ee072f4a0cc5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aee56aaf5fea8d051bb5388248fee0fd26b543ab6debc692f37ee072f4a0cc5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee56aaf5fea8d051bb5388248fee0fd26b543ab6debc692f37ee072f4a0cc5d", kill_on_drop: false }`
[INFO] [stdout] aee56aaf5fea8d051bb5388248fee0fd26b543ab6debc692f37ee072f4a0cc5d
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a82c74eea8262d72fe63f7bcd108c8d9495ff58023c092de3aeb95dfdf4de2a
[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" "5a82c74eea8262d72fe63f7bcd108c8d9495ff58023c092de3aeb95dfdf4de2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking multihash v0.11.4
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking parity-multiaddr v0.9.3
[INFO] [stderr]    Compiling libp2p-core v0.22.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking multistream-select v0.8.3
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]  Documenting libp2p-core v0.22.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: public documentation for `EstablishedConnection` links to private item `Pool`
[INFO] [stdout]    --> src/connection/pool.rs:784:37
[INFO] [stdout]     |
[INFO] [stdout] 784 | /// An established connection in a [`Pool`].
[INFO] [stdout]     |                                     ^^^^^^ this item is private
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(private_intra_doc_links)]` on by default
[INFO] [stdout]     = note: this link resolves only because you passed `--document-private-items`, but will break without
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: public documentation for `EstablishedConnectionIter` links to private item `Pool`
[INFO] [stdout]    --> src/connection/pool.rs:864:52
[INFO] [stdout]     |
[INFO] [stdout] 864 | /// An iterator over established connections in a [`Pool`].
[INFO] [stdout]     |                                                    ^^^^^^ this item is private
[INFO] [stdout]     |
[INFO] [stdout]     = note: this link resolves only because you passed `--document-private-items`, but will break without
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: public documentation for `PendingConnection` links to private item `Pool`
[INFO] [stdout]    --> src/connection/pool.rs:753:32
[INFO] [stdout]     |
[INFO] [stdout] 753 | /// A pending connection in a [`Pool`].
[INFO] [stdout]     |                                ^^^^^^ this item is private
[INFO] [stdout]     |
[INFO] [stdout]     = note: this link resolves only because you passed `--document-private-items`, but will break without
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: public documentation for `EstablishedConnection` links to private item `Pool`
[INFO] [stdout]    --> src/connection/pool.rs:784:37
[INFO] [stdout]     |
[INFO] [stdout] 784 | /// An established connection in a [`Pool`].
[INFO] [stdout]     |                                     ^^^^^^ this item is private
[INFO] [stdout]     |
[INFO] [stdout]     = note: this link resolves only because you passed `--document-private-items`, but will break without
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.02s
[INFO] running `Command { std: "docker" "inspect" "5a82c74eea8262d72fe63f7bcd108c8d9495ff58023c092de3aeb95dfdf4de2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a82c74eea8262d72fe63f7bcd108c8d9495ff58023c092de3aeb95dfdf4de2a", kill_on_drop: false }`
[INFO] [stdout] 5a82c74eea8262d72fe63f7bcd108c8d9495ff58023c092de3aeb95dfdf4de2a
