Nov 17 21:38:23.754 INFO testing stream-combinators-0.1.0 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 21:38:23.754 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 21:38:24.207 INFO [stdout] d6febd15d7543e48f9425a1d4c2f843b68facd6954f5b45e1f8aa3c3817f16d9
Nov 17 21:38:24.212 INFO running `"docker" "start" "-a" "d6febd15d7543e48f9425a1d4c2f843b68facd6954f5b45e1f8aa3c3817f16d9"`
Nov 17 21:38:25.197 INFO [stderr] usermod: no changes
Nov 17 21:38:25.418 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Nov 17 21:38:26.003 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Nov 17 21:38:26.009 INFO [stderr] su: No module specific data is present
Nov 17 21:38:26.569 INFO running `"docker" "inspect" "d6febd15d7543e48f9425a1d4c2f843b68facd6954f5b45e1f8aa3c3817f16d9"`
Nov 17 21:38:26.775 INFO running `"docker" "rm" "-f" "d6febd15d7543e48f9425a1d4c2f843b68facd6954f5b45e1f8aa3c3817f16d9"`
Nov 17 21:38:26.943 INFO [stdout] d6febd15d7543e48f9425a1d4c2f843b68facd6954f5b45e1f8aa3c3817f16d9
Nov 17 21:38:26.949 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 21:38:27.259 INFO [stdout] 38d8f6411a3c2b7f68803f6c9c1bea6a3814923a4d764112ae2db454c0d48458
Nov 17 21:38:27.261 INFO running `"docker" "start" "-a" "38d8f6411a3c2b7f68803f6c9c1bea6a3814923a4d764112ae2db454c0d48458"`
Nov 17 21:38:27.765 INFO [stderr] usermod: no changes
Nov 17 21:38:27.871 INFO [stderr]    Compiling tokio-stdin v0.1.1
Nov 17 21:38:28.951 INFO [stderr]    Compiling stream-combinators v0.1.0 (/source)
Nov 17 21:38:30.695 INFO [stderr] warning: unnecessary parentheses around function argument
Nov 17 21:38:30.695 INFO [stderr]  --> examples/into_pairs.rs:9:41
Nov 17 21:38:30.695 INFO [stderr]   |
Nov 17 21:38:30.695 INFO [stderr] 9 |     let number_stream = iter_ok::<_,()>((0..6));
Nov 17 21:38:30.695 INFO [stderr]   |                                         ^^^^^^ help: remove these parentheses
Nov 17 21:38:30.703 INFO [stderr]   |
Nov 17 21:38:30.703 INFO [stderr]   = note: #[warn(unused_parens)] on by default
Nov 17 21:38:30.703 INFO [stderr] 
Nov 17 21:38:37.008 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.22s
Nov 17 21:38:37.015 INFO [stderr] su: No module specific data is present
Nov 17 21:38:37.431 INFO running `"docker" "inspect" "38d8f6411a3c2b7f68803f6c9c1bea6a3814923a4d764112ae2db454c0d48458"`
Nov 17 21:38:37.557 INFO running `"docker" "rm" "-f" "38d8f6411a3c2b7f68803f6c9c1bea6a3814923a4d764112ae2db454c0d48458"`
Nov 17 21:38:37.703 INFO [stdout] 38d8f6411a3c2b7f68803f6c9c1bea6a3814923a4d764112ae2db454c0d48458