Dec 06 21:22:44.216 INFO testing stream-combinators-0.1.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 21:22:44.216 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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"`
Dec 06 21:22:44.562 INFO [stdout] a63b3f642592a8993aeda8e01618607c0bd9105116770b3ee13cd4787186e581
Dec 06 21:22:44.568 INFO running `"docker" "start" "-a" "a63b3f642592a8993aeda8e01618607c0bd9105116770b3ee13cd4787186e581"`
Dec 06 21:22:45.642 INFO [stderr] usermod: no changes
Dec 06 21:22:45.760 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Dec 06 21:22:46.360 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 06 21:22:46.372 INFO [stderr] su: No module specific data is present
Dec 06 21:22:46.666 INFO running `"docker" "inspect" "a63b3f642592a8993aeda8e01618607c0bd9105116770b3ee13cd4787186e581"`
Dec 06 21:22:46.810 INFO running `"docker" "rm" "-f" "a63b3f642592a8993aeda8e01618607c0bd9105116770b3ee13cd4787186e581"`
Dec 06 21:22:46.946 INFO [stdout] a63b3f642592a8993aeda8e01618607c0bd9105116770b3ee13cd4787186e581
Dec 06 21:22:46.949 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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"`
Dec 06 21:22:47.157 INFO [stdout] d9b922088f3c6dcb19f501cee09c5c190844e86f7f97984ef83c14ef40dac3d0
Dec 06 21:22:47.159 INFO running `"docker" "start" "-a" "d9b922088f3c6dcb19f501cee09c5c190844e86f7f97984ef83c14ef40dac3d0"`
Dec 06 21:22:47.872 INFO [stderr] usermod: no changes
Dec 06 21:22:48.051 INFO [stderr]    Compiling tokio-stdin v0.1.1
Dec 06 21:22:49.284 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Dec 06 21:22:50.331 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 06 21:22:50.331 INFO [stderr]  --> examples/into_pairs.rs:9:41
Dec 06 21:22:50.331 INFO [stderr]   |
Dec 06 21:22:50.331 INFO [stderr] 9 |     let number_stream = iter_ok::<_,()>((0..6));
Dec 06 21:22:50.331 INFO [stderr]   |                                         ^^^^^^ help: remove these parentheses
Dec 06 21:22:50.331 INFO [stderr]   |
Dec 06 21:22:50.331 INFO [stderr]   = note: #[warn(unused_parens)] on by default
Dec 06 21:22:50.332 INFO [stderr] 
Dec 06 21:22:57.520 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.63s
Dec 06 21:22:57.528 INFO [stderr] su: No module specific data is present
Dec 06 21:22:58.288 INFO running `"docker" "inspect" "d9b922088f3c6dcb19f501cee09c5c190844e86f7f97984ef83c14ef40dac3d0"`
Dec 06 21:22:58.553 INFO running `"docker" "rm" "-f" "d9b922088f3c6dcb19f501cee09c5c190844e86f7f97984ef83c14ef40dac3d0"`
Dec 06 21:22:58.884 INFO [stdout] d9b922088f3c6dcb19f501cee09c5c190844e86f7f97984ef83c14ef40dac3d0