Dec 11 11:29:37.093 INFO checking qnighy/async-stdio-test against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 11:29:37.094 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-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 11 11:29:37.548 INFO [stdout] a350d38b94ef686b5a2b10469bbd5bc480d80d15c47d903d1b2b4ae66f48efa1
Dec 11 11:29:37.554 INFO running `"docker" "start" "-a" "a350d38b94ef686b5a2b10469bbd5bc480d80d15c47d903d1b2b4ae66f48efa1"`
Dec 11 11:29:38.779 INFO [stderr] usermod: no changes
Dec 11 11:29:38.938 INFO [stderr]     Checking tokio-threadpool v0.1.2
Dec 11 11:29:38.944 INFO [stderr]     Checking tokio-file-unix v0.5.0
Dec 11 11:29:40.449 INFO [stderr]     Checking tokio v0.1.5
Dec 11 11:29:41.584 INFO [stderr]     Checking async-stdio-test v0.1.0 (/source)
Dec 11 11:29:42.784 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.98s
Dec 11 11:29:42.795 INFO [stderr] su: No module specific data is present
Dec 11 11:29:43.386 INFO running `"docker" "inspect" "a350d38b94ef686b5a2b10469bbd5bc480d80d15c47d903d1b2b4ae66f48efa1"`
Dec 11 11:29:43.646 INFO running `"docker" "rm" "-f" "a350d38b94ef686b5a2b10469bbd5bc480d80d15c47d903d1b2b4ae66f48efa1"`
Dec 11 11:29:43.848 INFO [stdout] a350d38b94ef686b5a2b10469bbd5bc480d80d15c47d903d1b2b4ae66f48efa1