[INFO] fetching crate beat-detector 0.1.0...
[INFO] documenting beat-detector-0.1.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate beat-detector 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate beat-detector 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate beat-detector 0.1.0
[INFO] finished tweaking crates.io crate beat-detector 0.1.0
[INFO] tweaked toml for crates.io crate beat-detector 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate beat-detector 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.1.9
[INFO] [stderr]   Downloaded spidev v0.4.1
[INFO] [stderr]   Downloaded microfft v0.4.0
[INFO] [stderr]   Downloaded spectrum-analyzer v0.5.2
[INFO] [stderr]   Downloaded lowpass-filter v0.2.4
[INFO] [stderr]   Downloaded ws2818-rgb-led-spi-driver v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac7d2bb94f1b2351d2ec3668dc7cb043738812a27e6524abaf1dd8ef96b4348d
[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" "ac7d2bb94f1b2351d2ec3668dc7cb043738812a27e6524abaf1dd8ef96b4348d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac7d2bb94f1b2351d2ec3668dc7cb043738812a27e6524abaf1dd8ef96b4348d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7d2bb94f1b2351d2ec3668dc7cb043738812a27e6524abaf1dd8ef96b4348d", kill_on_drop: false }`
[INFO] [stdout] ac7d2bb94f1b2351d2ec3668dc7cb043738812a27e6524abaf1dd8ef96b4348d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] acdc887943210fca2ed00c86ac561be85f989489b3f51f4f838092fa2ceae284
[INFO] running `Command { std: "docker" "start" "-a" "acdc887943210fca2ed00c86ac561be85f989489b3f51f4f838092fa2ceae284", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking lowpass-filter v0.2.4
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling cpal v0.13.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking microfft v0.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking spectrum-analyzer v0.5.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]  Documenting beat-detector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `time_ms`
[INFO] [stdout]   --> src/strategies/mod.rs:46:44
[INFO] [stdout]    |
[INFO] [stdout] 46 |     /// This is always a bit shorter than [`time_ms`]. It is the timestamp
[INFO] [stdout]    |                                            ^^^^^^^^^ no item named `time_ms` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::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 `time_ms`
[INFO] [stdout]   --> src/strategies/mod.rs:47:54
[INFO] [stdout]    |
[INFO] [stdout] 47 |     /// in the middle of the current frame, whereas [`time_ms`] is the timestamp
[INFO] [stdout]    |                                                      ^^^^^^^^^ no item named `time_ms` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `beat_time_ms`
[INFO] [stdout]   --> src/strategies/mod.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     /// [`beat_time_ms`].
[INFO] [stdout]    |          ^^^^^^^^^^^^^^ no item named `beat_time_ms` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `sampling_rate`
[INFO] [stdout]   --> src/strategies/mod.rs:72:66
[INFO] [stdout]    |
[INFO] [stdout] 72 |     /// the amount of (mono, not stereo!) samples for the given [`sampling_rate`].
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^ no item named `sampling_rate` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `sampling_rate`
[INFO] [stdout]   --> src/strategies/mod.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |     /// Getter for [`sampling_rate`].
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^ no item named `sampling_rate` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `last_beat_timestamp`
[INFO] [stdout]   --> src/strategies/mod.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |     /// Getter for [`last_beat_timestamp`].
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^ no item named `last_beat_timestamp` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `beat_time_ms`
[INFO] [stdout]    --> src/strategies/mod.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |     /// Getter for [`beat_time_ms`].
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ no item named `beat_time_ms` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `time_ms`
[INFO] [stdout]    --> src/strategies/mod.rs:111:21
[INFO] [stdout]     |
[INFO] [stdout] 111 |     /// Getter for [`time_ms`].
[INFO] [stdout]     |                     ^^^^^^^^^ no item named `time_ms` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: public documentation for `LPF` links to private item `strategies::lpf::LpfBeatDetector`
[INFO] [stdout]    --> src/lib.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 |     /// Corresponds to [`strategies::lpf::LpfBeatDetector`].
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this item is private
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::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 `Spectrum` links to private item `strategies::spectrum::SABeatDetector`
[INFO] [stdout]    --> src/lib.rs:129:25
[INFO] [stdout]     |
[INFO] [stdout] 129 |     /// Corresponds to [`strategies::spectrum::SABeatDetector`]
[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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 30.15s
[INFO] running `Command { std: "docker" "inspect" "acdc887943210fca2ed00c86ac561be85f989489b3f51f4f838092fa2ceae284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acdc887943210fca2ed00c86ac561be85f989489b3f51f4f838092fa2ceae284", kill_on_drop: false }`
[INFO] [stdout] acdc887943210fca2ed00c86ac561be85f989489b3f51f4f838092fa2ceae284
