[INFO] crate spectrogram 0.1.0 is already in cache
[INFO] testing spectrogram-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate spectrogram 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate spectrogram 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate spectrogram 0.1.0
[INFO] finished tweaking crates.io crate spectrogram 0.1.0
[INFO] tweaked toml for crates.io crate spectrogram 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e6c55a9e6522e9292a9ae0f5c256c0cf898bde6cfa1fa18aecd0d240ebdeccba
[INFO] running `"docker" "start" "-a" "e6c55a9e6522e9292a9ae0f5c256c0cf898bde6cfa1fa18aecd0d240ebdeccba"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bytemuck v1.2.0
[INFO] [stderr]    Compiling goertzel v0.2.0
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling deflate v0.8.4
[INFO] [stderr]    Compiling tiff v0.4.0
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling png v0.16.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.19
[INFO] [stderr]    Compiling image v0.23.4
[INFO] [stderr]    Compiling spectrogram v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/lib.rs:13:52
[INFO] [stderr]    |
[INFO] [stderr] 13 |             let p = goertzel::Parameters::new(bin, sample_rate, 256);
[INFO] [stderr]    |                                                    ^^^^^^^^^^^ expected `u32`, found `f32`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `Gray` found for enum `image::ColorType` in the current scope
[INFO] [stderr]   --> src/lib.rs:22:83
[INFO] [stderr]    |
[INFO] [stderr] 22 |     image::save_buffer(image, &image_data[..], 30, image_lines, image::ColorType::Gray(8));
[INFO] [stderr]    |                                                                                   ^^^^ variant or associated item not found in `image::ColorType`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `spectrogram`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e6c55a9e6522e9292a9ae0f5c256c0cf898bde6cfa1fa18aecd0d240ebdeccba"`
[INFO] running `"docker" "rm" "-f" "e6c55a9e6522e9292a9ae0f5c256c0cf898bde6cfa1fa18aecd0d240ebdeccba"`
[INFO] [stdout] e6c55a9e6522e9292a9ae0f5c256c0cf898bde6cfa1fa18aecd0d240ebdeccba