[INFO] fetching crate metrics-core 0.5.2...
[INFO] documenting metrics-core-0.5.2 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate metrics-core 0.5.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate metrics-core 0.5.2 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 metrics-core 0.5.2
[INFO] finished tweaking crates.io crate metrics-core 0.5.2
[INFO] tweaked toml for crates.io crate metrics-core 0.5.2 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c35c10e69f1df9f0a8bab9a306aebe09fbb0a9112b74aa95b0de2ba91ce5d091
[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" "c35c10e69f1df9f0a8bab9a306aebe09fbb0a9112b74aa95b0de2ba91ce5d091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c35c10e69f1df9f0a8bab9a306aebe09fbb0a9112b74aa95b0de2ba91ce5d091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c35c10e69f1df9f0a8bab9a306aebe09fbb0a9112b74aa95b0de2ba91ce5d091", kill_on_drop: false }`
[INFO] [stdout] c35c10e69f1df9f0a8bab9a306aebe09fbb0a9112b74aa95b0de2ba91ce5d091
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b2fee18fd4f010d1114a976d5fa6a7aae2400c482fb77bc5d42e50a08be98ca1
[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" "b2fee18fd4f010d1114a976d5fa6a7aae2400c482fb77bc5d42e50a08be98ca1", kill_on_drop: false }`
[INFO] [stderr]  Documenting metrics-core v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `metrics_core::IntoLabels`
[INFO] [stdout]    --> src/lib.rs:318:57
[INFO] [stdout]     |
[INFO] [stdout] 318 | /// to do the exact same thing in calls that depend on [`metrics_core::IntoLabels`].
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ the module `metrics_core` contains no item named `metrics_core`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "b2fee18fd4f010d1114a976d5fa6a7aae2400c482fb77bc5d42e50a08be98ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2fee18fd4f010d1114a976d5fa6a7aae2400c482fb77bc5d42e50a08be98ca1", kill_on_drop: false }`
[INFO] [stdout] b2fee18fd4f010d1114a976d5fa6a7aae2400c482fb77bc5d42e50a08be98ca1
