[INFO] fetching crate metrics-tracing-context 0.1.0-alpha.1...
[INFO] documenting metrics-tracing-context-0.1.0-alpha.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate metrics-tracing-context 0.1.0-alpha.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate metrics-tracing-context 0.1.0-alpha.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 metrics-tracing-context 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate metrics-tracing-context 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate metrics-tracing-context 0.1.0-alpha.1 written to /workspace/builds/worker-7/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded metrics-util v0.4.0-alpha.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 765a533bf60f1a721579dd9a17fa70e0e28529eaa32c04b176701c89f4c36cc3
[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" "765a533bf60f1a721579dd9a17fa70e0e28529eaa32c04b176701c89f4c36cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "765a533bf60f1a721579dd9a17fa70e0e28529eaa32c04b176701c89f4c36cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765a533bf60f1a721579dd9a17fa70e0e28529eaa32c04b176701c89f4c36cc3", kill_on_drop: false }`
[INFO] [stdout] 765a533bf60f1a721579dd9a17fa70e0e28529eaa32c04b176701c89f4c36cc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2a22be6a11962c0c74c3b8d25c81e0eb434542860e7ab5b1509855cf5c9564c5
[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" "2a22be6a11962c0c74c3b8d25c81e0eb434542860e7ab5b1509855cf5c9564c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics v0.13.0-alpha.5
[INFO] [stderr]     Checking atomic-shim v0.1.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.13
[INFO] [stderr]    Compiling metrics-macros v0.1.0-alpha.3
[INFO] [stderr]     Checking metrics-util v0.4.0-alpha.4
[INFO] [stderr]  Documenting metrics-tracing-context v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `metrics::Layer`
[INFO] [stdout]   --> src/lib.rs:68:62
[INFO] [stdout]    |
[INFO] [stdout] 68 | /// [`TracingContextLayer`] provides an implementation of a [`metrics::Layer`]
[INFO] [stdout]    |                                                              ^^^^^^^^^^^^^^^^ the module `metrics` contains no item named `Layer`
[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 13.93s
[INFO] running `Command { std: "docker" "inspect" "2a22be6a11962c0c74c3b8d25c81e0eb434542860e7ab5b1509855cf5c9564c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a22be6a11962c0c74c3b8d25c81e0eb434542860e7ab5b1509855cf5c9564c5", kill_on_drop: false }`
[INFO] [stdout] 2a22be6a11962c0c74c3b8d25c81e0eb434542860e7ab5b1509855cf5c9564c5
