[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 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSSStormy%2Fstdf-spectrogram" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SSStormy/stdf-spectrogram on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustfft v2.0.0
[INFO] [stderr]   Downloaded bmp v0.4.0
[INFO] [stderr]   Downloaded spmc v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c54c21868c0bf9fdda5c109f3d2ad2f4f93dde9a1a027fb777ca1be73c0f720d
[INFO] running `Command { std: "docker" "start" "-a" "c54c21868c0bf9fdda5c109f3d2ad2f4f93dde9a1a027fb777ca1be73c0f720d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c54c21868c0bf9fdda5c109f3d2ad2f4f93dde9a1a027fb777ca1be73c0f720d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c54c21868c0bf9fdda5c109f3d2ad2f4f93dde9a1a027fb777ca1be73c0f720d", kill_on_drop: false }`
[INFO] [stdout] c54c21868c0bf9fdda5c109f3d2ad2f4f93dde9a1a027fb777ca1be73c0f720d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23792e2cf31d1abfa69d73661fe324e0e54df320190e04f5e170d061b4b095e5
[INFO] running `Command { std: "docker" "start" "-a" "23792e2cf31d1abfa69d73661fe324e0e54df320190e04f5e170d061b4b095e5", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking spmc v0.2.2
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking bmp v0.4.0
[INFO] [stderr]     Checking num-traits v0.1.43
[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]    |                          ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 - const NORM_SIZE: usize = (FFT_SIZE/2);
[INFO] [stdout] 18 + const NORM_SIZE: usize = FFT_SIZE/2;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/fft/index.html
[INFO] running `Command { std: "docker" "inspect" "23792e2cf31d1abfa69d73661fe324e0e54df320190e04f5e170d061b4b095e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23792e2cf31d1abfa69d73661fe324e0e54df320190e04f5e170d061b4b095e5", kill_on_drop: false }`
[INFO] [stdout] 23792e2cf31d1abfa69d73661fe324e0e54df320190e04f5e170d061b4b095e5