Dec 11 17:25:21.057 INFO checking hjr3/future-mpsc-example against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 17:25:21.057 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 17:25:21.278 INFO [stdout] 68b2cf79a66e423d7d048de9970d47efc9267d2ce81cf4118596b5eb65824f14
Dec 11 17:25:21.282 INFO running `"docker" "start" "-a" "68b2cf79a66e423d7d048de9970d47efc9267d2ce81cf4118596b5eb65824f14"`
Dec 11 17:25:21.645 INFO [stderr] usermod: no changes
Dec 11 17:25:21.722 INFO [stderr]     Checking net2 v0.2.26
Dec 11 17:25:21.723 INFO [stderr]     Checking env_logger v0.4.1
Dec 11 17:25:22.274 INFO [stderr]     Checking mio v0.6.4
Dec 11 17:25:23.632 INFO [stderr]     Checking tokio-core v0.1.4
Dec 11 17:25:24.693 INFO [stderr]     Checking future-mpsc-example v0.1.0 (/source)
Dec 11 17:25:25.624 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.96s
Dec 11 17:25:25.628 INFO [stderr] su: No module specific data is present
Dec 11 17:25:25.905 INFO running `"docker" "inspect" "68b2cf79a66e423d7d048de9970d47efc9267d2ce81cf4118596b5eb65824f14"`
Dec 11 17:25:25.995 INFO running `"docker" "rm" "-f" "68b2cf79a66e423d7d048de9970d47efc9267d2ce81cf4118596b5eb65824f14"`
Dec 11 17:25:26.112 INFO [stdout] 68b2cf79a66e423d7d048de9970d47efc9267d2ce81cf4118596b5eb65824f14