Nov 17 11:30:23.082 INFO testing Techno-coder/signal_processing against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 11:30:23.082 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 11:30:23.302 INFO [stdout] 7e40dd2d1a807f1fa9ddb1e96aa213e8d89b1c5895c43507060cca2037750d0e
Nov 17 11:30:23.304 INFO running `"docker" "start" "-a" "7e40dd2d1a807f1fa9ddb1e96aa213e8d89b1c5895c43507060cca2037750d0e"`
Nov 17 11:30:23.844 INFO [stderr] usermod: no changes
Nov 17 11:30:23.935 INFO [stderr]    Compiling rustfft v2.1.0
Nov 17 11:30:25.339 INFO [stderr]    Compiling signal_processing v0.1.0 (/source)
Nov 17 11:30:29.834 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.97s
Nov 17 11:30:29.843 INFO [stderr] su: No module specific data is present
Nov 17 11:30:30.357 INFO running `"docker" "inspect" "7e40dd2d1a807f1fa9ddb1e96aa213e8d89b1c5895c43507060cca2037750d0e"`
Nov 17 11:30:30.582 INFO running `"docker" "rm" "-f" "7e40dd2d1a807f1fa9ddb1e96aa213e8d89b1c5895c43507060cca2037750d0e"`
Nov 17 11:30:30.887 INFO [stdout] 7e40dd2d1a807f1fa9ddb1e96aa213e8d89b1c5895c43507060cca2037750d0e
Nov 17 11:30:30.894 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 11:30:31.341 INFO [stdout] 7b35425ee0bd4ef299c66f658ab9dd88d0c05e0542b7e1f1cf12ba22dfd6c99f
Nov 17 11:30:31.341 INFO running `"docker" "start" "-a" "7b35425ee0bd4ef299c66f658ab9dd88d0c05e0542b7e1f1cf12ba22dfd6c99f"`
Nov 17 11:30:33.000 INFO [stderr] usermod: no changes
Nov 17 11:30:33.134 INFO [stderr]    Compiling signal_processing v0.1.0 (/source)
Nov 17 11:30:35.279 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.279 INFO [stderr]   --> src/convolution.rs:44:6
Nov 17 11:30:35.279 INFO [stderr]    |
Nov 17 11:30:35.279 INFO [stderr] 44 |     use test::Bencher;
Nov 17 11:30:35.279 INFO [stderr]    |         ^^^^
Nov 17 11:30:35.279 INFO [stderr]    |
Nov 17 11:30:35.279 INFO [stderr]    = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.279 INFO [stderr] 
Nov 17 11:30:35.279 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.279 INFO [stderr]    --> src/short_time_fourier.rs:121:6
Nov 17 11:30:35.279 INFO [stderr]     |
Nov 17 11:30:35.279 INFO [stderr] 121 |     use test::Bencher;
Nov 17 11:30:35.279 INFO [stderr]     |         ^^^^
Nov 17 11:30:35.279 INFO [stderr]     |
Nov 17 11:30:35.279 INFO [stderr]     = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.279 INFO [stderr] 
Nov 17 11:30:35.279 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.279 INFO [stderr]    --> src/phase_vocoder.rs:168:6
Nov 17 11:30:35.279 INFO [stderr]     |
Nov 17 11:30:35.279 INFO [stderr] 168 |     use test::Bencher;
Nov 17 11:30:35.279 INFO [stderr]     |         ^^^^
Nov 17 11:30:35.279 INFO [stderr]     |
Nov 17 11:30:35.279 INFO [stderr]     = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.279 INFO [stderr] 
Nov 17 11:30:35.279 INFO [stderr] error[E0658]: use of extern prelude names introduced with `extern crate` items is unstable (see issue #55599)
Nov 17 11:30:35.279 INFO [stderr]   --> src/fast_fourier.rs:45:6
Nov 17 11:30:35.279 INFO [stderr]    |
Nov 17 11:30:35.279 INFO [stderr] 45 |     use test::Bencher;
Nov 17 11:30:35.279 INFO [stderr]    |         ^^^^
Nov 17 11:30:35.279 INFO [stderr]    |
Nov 17 11:30:35.279 INFO [stderr]    = help: add #![feature(extern_crate_item_prelude)] to the crate attributes to enable
Nov 17 11:30:35.279 INFO [stderr] 
Nov 17 11:30:36.771 INFO [stderr] error: aborting due to 4 previous errors
Nov 17 11:30:36.771 INFO [stderr] 
Nov 17 11:30:36.771 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 17 11:30:36.779 INFO [stderr] error: Could not compile `signal_processing`.
Nov 17 11:30:36.779 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 17 11:30:38.718 INFO [stderr] error: build failed
Nov 17 11:30:38.724 INFO [stderr] su: No module specific data is present
Nov 17 11:30:39.827 INFO running `"docker" "inspect" "7b35425ee0bd4ef299c66f658ab9dd88d0c05e0542b7e1f1cf12ba22dfd6c99f"`
Nov 17 11:30:40.081 INFO running `"docker" "rm" "-f" "7b35425ee0bd4ef299c66f658ab9dd88d0c05e0542b7e1f1cf12ba22dfd6c99f"`
Nov 17 11:30:40.418 INFO [stdout] 7b35425ee0bd4ef299c66f658ab9dd88d0c05e0542b7e1f1cf12ba22dfd6c99f