[INFO] crate vox_box 0.3.0 is already in cache
[INFO] extracting crate vox_box 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/vox_box/0.3.0
[INFO] extracting crate vox_box 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/vox_box/0.3.0
[INFO] validating manifest of vox_box-0.3.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vox_box-0.3.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/vox_box/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vox_box-0.3.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5fab95d3e42da18bd138de714e365ca829c2cdc9079733e75436f0bdbf8be144
[INFO] running `"docker" "start" "-a" "5fab95d3e42da18bd138de714e365ca829c2cdc9079733e75436f0bdbf8be144"`
[INFO] [stderr]    Compiling sample v0.9.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling rustfft v1.0.1
[INFO] [stderr]    Compiling vox_box v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/periodic.rs:99:38
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn brent_maximize<'a, S: Sample>(f: &Fn(f64, &BrentParams<'a, S>) -> f64, 
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, &BrentParams<'a, S>) -> f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[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" "5fab95d3e42da18bd138de714e365ca829c2cdc9079733e75436f0bdbf8be144"`
[INFO] running `"docker" "rm" "-f" "5fab95d3e42da18bd138de714e365ca829c2cdc9079733e75436f0bdbf8be144"`
[INFO] [stdout] 5fab95d3e42da18bd138de714e365ca829c2cdc9079733e75436f0bdbf8be144