Nov 17 11:30:22.648 INFO testing Techno-coder/signal_processing against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 11:30:22.648 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 11:30:22.905 INFO [stdout] 68ff18d1b4685479cf81961a02d124e0afd9e8cb8f480491ebbaca171823f364
Nov 17 11:30:22.908 INFO running `"docker" "start" "-a" "68ff18d1b4685479cf81961a02d124e0afd9e8cb8f480491ebbaca171823f364"`
Nov 17 11:30:23.421 INFO [stderr] usermod: no changes
Nov 17 11:30:23.491 INFO [stderr]    Compiling rustfft v2.1.0
Nov 17 11:30:24.843 INFO [stderr]    Compiling signal_processing v0.1.0 (/source)
Nov 17 11:30:29.974 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
Nov 17 11:30:29.974 INFO [stderr] su: No module specific data is present
Nov 17 11:30:30.465 INFO running `"docker" "inspect" "68ff18d1b4685479cf81961a02d124e0afd9e8cb8f480491ebbaca171823f364"`
Nov 17 11:30:30.736 INFO running `"docker" "rm" "-f" "68ff18d1b4685479cf81961a02d124e0afd9e8cb8f480491ebbaca171823f364"`
Nov 17 11:30:31.035 INFO [stdout] 68ff18d1b4685479cf81961a02d124e0afd9e8cb8f480491ebbaca171823f364
Nov 17 11:30:31.041 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 11:30:31.407 INFO [stdout] a453b6d280a60ba1ed2bf6d54994323f7d0e003b6f723d4818b0058dc8d26cdd
Nov 17 11:30:31.417 INFO running `"docker" "start" "-a" "a453b6d280a60ba1ed2bf6d54994323f7d0e003b6f723d4818b0058dc8d26cdd"`
Nov 17 11:30:32.740 INFO [stderr] usermod: no changes
Nov 17 11:30:32.883 INFO [stderr]    Compiling hound v3.4.0
Nov 17 11:30:34.019 INFO [stderr]    Compiling signal_processing v0.1.0 (/source)
Nov 17 11:30:35.873 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.873 INFO [stderr]   --> src/convolution.rs:44:6
Nov 17 11:30:35.873 INFO [stderr]    |
Nov 17 11:30:35.873 INFO [stderr] 44 |     use test::Bencher;
Nov 17 11:30:35.873 INFO [stderr]    |         ^^^^
Nov 17 11:30:35.879 INFO [stderr]    |
Nov 17 11:30:35.879 INFO [stderr]    = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.879 INFO [stderr] 
Nov 17 11:30:35.880 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.880 INFO [stderr]    --> src/short_time_fourier.rs:121:6
Nov 17 11:30:35.880 INFO [stderr]     |
Nov 17 11:30:35.880 INFO [stderr] 121 |     use test::Bencher;
Nov 17 11:30:35.880 INFO [stderr]     |         ^^^^
Nov 17 11:30:35.880 INFO [stderr]     |
Nov 17 11:30:35.880 INFO [stderr]     = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.880 INFO [stderr] 
Nov 17 11:30:35.880 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.880 INFO [stderr]    --> src/phase_vocoder.rs:168:6
Nov 17 11:30:35.880 INFO [stderr]     |
Nov 17 11:30:35.880 INFO [stderr] 168 |     use test::Bencher;
Nov 17 11:30:35.880 INFO [stderr]     |         ^^^^
Nov 17 11:30:35.880 INFO [stderr]     |
Nov 17 11:30:35.880 INFO [stderr]     = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.880 INFO [stderr] 
Nov 17 11:30:35.880 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.880 INFO [stderr]   --> src/fast_fourier.rs:45:6
Nov 17 11:30:35.880 INFO [stderr]    |
Nov 17 11:30:35.880 INFO [stderr] 45 |     use test::Bencher;
Nov 17 11:30:35.880 INFO [stderr]    |         ^^^^
Nov 17 11:30:35.880 INFO [stderr]    |
Nov 17 11:30:35.880 INFO [stderr]    = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.880 INFO [stderr] 
Nov 17 11:30:36.811 INFO [stderr] error: aborting due to 4 previous errors
Nov 17 11:30:36.815 INFO [stderr] 
Nov 17 11:30:36.815 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 17 11:30:36.821 INFO [stderr] error: Could not compile `signal_processing`.
Nov 17 11:30:36.821 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 17 11:30:39.559 INFO [stderr] error: build failed
Nov 17 11:30:39.562 INFO [stderr] su: No module specific data is present
Nov 17 11:30:40.486 INFO running `"docker" "inspect" "a453b6d280a60ba1ed2bf6d54994323f7d0e003b6f723d4818b0058dc8d26cdd"`
Nov 17 11:30:40.775 INFO running `"docker" "rm" "-f" "a453b6d280a60ba1ed2bf6d54994323f7d0e003b6f723d4818b0058dc8d26cdd"`
Nov 17 11:30:41.039 INFO [stdout] a453b6d280a60ba1ed2bf6d54994323f7d0e003b6f723d4818b0058dc8d26cdd