[INFO] fetching crate metrics-exporter-prometheus 0.1.0-alpha.4...
[INFO] documenting metrics-exporter-prometheus-0.1.0-alpha.4 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate metrics-exporter-prometheus 0.1.0-alpha.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.1.0-alpha.4 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-exporter-prometheus 0.1.0-alpha.4
[INFO] finished tweaking crates.io crate metrics-exporter-prometheus 0.1.0-alpha.4
[INFO] tweaked toml for crates.io crate metrics-exporter-prometheus 0.1.0-alpha.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate metrics-exporter-prometheus 0.1.0-alpha.4 already has a lockfile, it will not be regenerated
[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] 80e8457fab1104a468717c98b0250e44658d38d6b6da15a70b0c1620678d2b41
[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" "80e8457fab1104a468717c98b0250e44658d38d6b6da15a70b0c1620678d2b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80e8457fab1104a468717c98b0250e44658d38d6b6da15a70b0c1620678d2b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e8457fab1104a468717c98b0250e44658d38d6b6da15a70b0c1620678d2b41", kill_on_drop: false }`
[INFO] [stdout] 80e8457fab1104a468717c98b0250e44658d38d6b6da15a70b0c1620678d2b41
[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] 10a1a07e9e614633b499cfe0428181cb66c8f1de3224d7099cdf6bf249a4a57c
[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" "10a1a07e9e614633b499cfe0428181cb66c8f1de3224d7099cdf6bf249a4a57c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling metrics v0.13.0-alpha.4
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking hdrhistogram v7.1.0
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking dashmap v3.11.10
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling metrics-macros v0.1.0-alpha.3
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking metrics-util v0.4.0-alpha.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]  Documenting metrics-exporter-prometheus v0.1.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `set_boxed_recorder`
[INFO] [stdout]    --> src/lib.rs:330:37
[INFO] [stdout]     |
[INFO] [stdout] 330 | /// [`metrics::set_boxed_recorder`][set_boxed_recorder].
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^ the module `metrics_exporter_prometheus` contains no item named `set_boxed_recorder`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `set_buckets`
[INFO] [stdout]    --> src/lib.rs:387:34
[INFO] [stdout]     |
[INFO] [stdout] 387 |     /// If buckets are set (via [`set_buckets`] or [`set_buckets_for_metric`]) then all histograms will
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^ the module `metrics_exporter_prometheus` contains no item named `set_buckets`
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `set_buckets_for_metric`
[INFO] [stdout]    --> src/lib.rs:387:53
[INFO] [stdout]     |
[INFO] [stdout] 387 |     /// If buckets are set (via [`set_buckets`] or [`set_buckets_for_metric`]) then all histograms will
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ the module `metrics_exporter_prometheus` contains no item named `set_buckets_for_metric`
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.95s
[INFO] running `Command { std: "docker" "inspect" "10a1a07e9e614633b499cfe0428181cb66c8f1de3224d7099cdf6bf249a4a57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a1a07e9e614633b499cfe0428181cb66c8f1de3224d7099cdf6bf249a4a57c", kill_on_drop: false }`
[INFO] [stdout] 10a1a07e9e614633b499cfe0428181cb66c8f1de3224d7099cdf6bf249a4a57c
