[INFO] cloning repository https://github.com/SSStormy/stdf-spectrogram
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SSStormy/stdf-spectrogram" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSSStormy%2Fstdf-spectrogram", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSSStormy%2Fstdf-spectrogram'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daf81914b8c18b808b1296a239080ad07e1e47e3
[INFO] documenting SSStormy/stdf-spectrogram against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSSStormy%2Fstdf-spectrogram" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SSStormy/stdf-spectrogram on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SSStormy/stdf-spectrogram
[INFO] finished tweaking git repo https://github.com/SSStormy/stdf-spectrogram
[INFO] tweaked toml for git repo https://github.com/SSStormy/stdf-spectrogram written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/SSStormy/stdf-spectrogram already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bd191019d5285b77b2a1609bd53d3a663de7b84be9d79e5081f190d50e9ba72
[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" "7bd191019d5285b77b2a1609bd53d3a663de7b84be9d79e5081f190d50e9ba72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bd191019d5285b77b2a1609bd53d3a663de7b84be9d79e5081f190d50e9ba72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bd191019d5285b77b2a1609bd53d3a663de7b84be9d79e5081f190d50e9ba72", kill_on_drop: false }`
[INFO] [stdout] 7bd191019d5285b77b2a1609bd53d3a663de7b84be9d79e5081f190d50e9ba72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0f9038a6dd6699f17c77251b0b165f3872f018f58ff18ad9810046921d9950c
[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" "d0f9038a6dd6699f17c77251b0b165f3872f018f58ff18ad9810046921d9950c", kill_on_drop: false }`
[INFO] [stderr]     Checking spmc v0.2.2
[INFO] [stderr]     Checking bmp v0.4.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking rustfft v2.0.0
[INFO] [stderr]  Documenting fft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 | const NORM_SIZE: usize = (FFT_SIZE/2);
[INFO] [stdout]    |                          ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sampleRate` should have a snake case name
[INFO] [stdout]   --> src/main.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn freq_to_bin(freq: u32, sampleRate: u32) -> usize {
[INFO] [stdout]    |                           ^^^^^^^^^^ help: convert the identifier to snake case: `sample_rate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "d0f9038a6dd6699f17c77251b0b165f3872f018f58ff18ad9810046921d9950c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0f9038a6dd6699f17c77251b0b165f3872f018f58ff18ad9810046921d9950c", kill_on_drop: false }`
[INFO] [stdout] d0f9038a6dd6699f17c77251b0b165f3872f018f58ff18ad9810046921d9950c