[INFO] crate vox_box 0.3.0 is already in cache
[INFO] extracting crate vox_box 0.3.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/vox_box/0.3.0
[INFO] extracting crate vox_box 0.3.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/vox_box/0.3.0
[INFO] validating manifest of vox_box-0.3.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vox_box-0.3.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vox_box-0.3.0
[INFO] finished frobbing vox_box-0.3.0
[INFO] frobbed toml for vox_box-0.3.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/vox_box/0.3.0/Cargo.toml
[INFO] started frobbing vox_box-0.3.0
[INFO] finished frobbing vox_box-0.3.0
[INFO] frobbed toml for vox_box-0.3.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/vox_box/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vox_box-0.3.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/vox_box/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 99e99ea9c283ac488738f68b4bd34374b1300b62eefac9d600981728245fc464
[INFO] running `"docker" "start" "-a" "99e99ea9c283ac488738f68b4bd34374b1300b62eefac9d600981728245fc464"`
[INFO] [stderr]    Compiling sample v0.9.1
[INFO] [stderr]    Compiling rustfft v1.0.1
[INFO] [stderr]    Compiling vox_box v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/spectrum.rs:410:21
[INFO] [stderr]     |
[INFO] [stderr] 410 |         fft.process(&signal, &mut spectrum);
[INFO] [stderr]     |                     ^^^^^^^ expected slice, found struct `std::vec::Vec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&[num_complex::Complex<_>]`
[INFO] [stderr]                found type `&std::vec::Vec<num::Complex<T>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/spectrum.rs:410:30
[INFO] [stderr]     |
[INFO] [stderr] 410 |         fft.process(&signal, &mut spectrum);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^ expected slice, found struct `std::vec::Vec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&mut [num_complex::Complex<_>]`
[INFO] [stderr]                found type `&mut std::vec::Vec<num::Complex<T>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `vox_box`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "99e99ea9c283ac488738f68b4bd34374b1300b62eefac9d600981728245fc464"`
[INFO] running `"docker" "rm" "-f" "99e99ea9c283ac488738f68b4bd34374b1300b62eefac9d600981728245fc464"`
[INFO] [stdout] 99e99ea9c283ac488738f68b4bd34374b1300b62eefac9d600981728245fc464