[INFO] crate chfft 0.2.4 is already in cache
[INFO] extracting crate chfft 0.2.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/chfft/0.2.4
[INFO] extracting crate chfft 0.2.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/chfft/0.2.4
[INFO] validating manifest of chfft-0.2.4 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 chfft-0.2.4 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 chfft-0.2.4
[INFO] finished frobbing chfft-0.2.4
[INFO] frobbed toml for chfft-0.2.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/chfft/0.2.4/Cargo.toml
[INFO] started frobbing chfft-0.2.4
[INFO] finished frobbing chfft-0.2.4
[INFO] frobbed toml for chfft-0.2.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/chfft/0.2.4/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 chfft-0.2.4 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chfft/0.2.4:/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] 21e1050856a61964db60db12191fd20c2ba09acb3529334e6febdadd32107f29
[INFO] running `"docker" "start" "-a" "21e1050856a61964db60db12191fd20c2ba09acb3529334e6febdadd32107f29"`
[INFO] [stderr]    Compiling chfft v0.2.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "21e1050856a61964db60db12191fd20c2ba09acb3529334e6febdadd32107f29"`
[INFO] running `"docker" "rm" "-f" "21e1050856a61964db60db12191fd20c2ba09acb3529334e6febdadd32107f29"`
[INFO] [stdout] 21e1050856a61964db60db12191fd20c2ba09acb3529334e6febdadd32107f29
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chfft/0.2.4:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7bbbc84b5c3be43d2c536cb78e7f470a78587aa3639df09aba99f7cf5d96976d
[INFO] running `"docker" "start" "-a" "7bbbc84b5c3be43d2c536cb78e7f470a78587aa3639df09aba99f7cf5d96976d"`
[INFO] [stderr]    Compiling appro-eq v0.2.2
[INFO] [stderr]    Compiling chfft v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `rand::XorShiftRng`
[INFO] [stderr]    --> src/cfft1d.rs:517:34
[INFO] [stderr]     |
[INFO] [stderr] 517 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                                  ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::XorShiftRng`
[INFO] [stderr]    --> src/cfft2d.rs:376:34
[INFO] [stderr]     |
[INFO] [stderr] 376 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                                  ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::XorShiftRng`
[INFO] [stderr]    --> src/dct1d.rs:408:34
[INFO] [stderr]     |
[INFO] [stderr] 408 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                                  ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::XorShiftRng`
[INFO] [stderr]    --> src/mdct1d.rs:302:34
[INFO] [stderr]     |
[INFO] [stderr] 302 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                                  ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::XorShiftRng`
[INFO] [stderr]    --> src/rfft1d.rs:324:34
[INFO] [stderr]     |
[INFO] [stderr] 324 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                                  ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeedableRng`
[INFO] [stderr]    --> src/cfft1d.rs:517:21
[INFO] [stderr]     |
[INFO] [stderr] 517 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeedableRng`
[INFO] [stderr]    --> src/cfft2d.rs:376:21
[INFO] [stderr]     |
[INFO] [stderr] 376 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeedableRng`
[INFO] [stderr]    --> src/dct1d.rs:408:21
[INFO] [stderr]     |
[INFO] [stderr] 408 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeedableRng`
[INFO] [stderr]    --> src/mdct1d.rs:302:21
[INFO] [stderr]     |
[INFO] [stderr] 302 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeedableRng`
[INFO] [stderr]    --> src/rfft1d.rs:324:21
[INFO] [stderr]     |
[INFO] [stderr] 324 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/cfft1d.rs:517:16
[INFO] [stderr]     |
[INFO] [stderr] 517 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/cfft2d.rs:376:16
[INFO] [stderr]     |
[INFO] [stderr] 376 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/dct1d.rs:408:16
[INFO] [stderr]     |
[INFO] [stderr] 408 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/mdct1d.rs:302:16
[INFO] [stderr]     |
[INFO] [stderr] 302 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/rfft1d.rs:324:16
[INFO] [stderr]     |
[INFO] [stderr] 324 |     use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `chfft`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7bbbc84b5c3be43d2c536cb78e7f470a78587aa3639df09aba99f7cf5d96976d"`
[INFO] running `"docker" "rm" "-f" "7bbbc84b5c3be43d2c536cb78e7f470a78587aa3639df09aba99f7cf5d96976d"`
[INFO] [stdout] 7bbbc84b5c3be43d2c536cb78e7f470a78587aa3639df09aba99f7cf5d96976d