Dec 11 08:09:17.318 INFO checking tcsc/asyncho against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 08:09:17.318 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 08:09:17.884 INFO [stdout] 8e978c48c3f4e3fa91bfb0a119eff51c4100e2afc5297f20894e5f1430af259e
Dec 11 08:09:17.887 INFO running `"docker" "start" "-a" "8e978c48c3f4e3fa91bfb0a119eff51c4100e2afc5297f20894e5f1430af259e"`
Dec 11 08:09:19.416 INFO [stderr] usermod: no changes
Dec 11 08:09:19.524 INFO [stderr]     Checking futures v0.1.13
Dec 11 08:09:19.524 INFO [stderr]     Checking iovec v0.1.0
Dec 11 08:09:19.533 INFO [stderr]     Checking net2 v0.2.27
Dec 11 08:09:19.537 INFO [stderr]     Checking env_logger v0.4.2
Dec 11 08:09:20.352 INFO [stderr]     Checking bytes v0.4.2
Dec 11 08:09:21.184 INFO [stderr]     Checking mio v0.6.6
Dec 11 08:09:24.060 INFO [stderr]     Checking tokio-io v0.1.1
Dec 11 08:09:24.820 INFO [stderr]     Checking tokio-core v0.1.6
Dec 11 08:09:25.877 INFO [stderr]     Checking asyncho v0.1.0 (/source)
Dec 11 08:09:26.848 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 08:09:26.849 INFO [stderr]    --> src/service.rs:124:17
Dec 11 08:09:26.849 INFO [stderr]     |
Dec 11 08:09:26.849 INFO [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
Dec 11 08:09:26.849 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:09:26.850 INFO [stderr]     |
Dec 11 08:09:26.850 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 08:09:26.850 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 08:09:26.850 INFO [stderr] 
Dec 11 08:09:26.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 08:09:26.904 INFO [stderr]    --> src/service.rs:124:17
Dec 11 08:09:26.904 INFO [stderr]     |
Dec 11 08:09:26.905 INFO [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
Dec 11 08:09:26.905 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:09:26.905 INFO [stderr]     |
Dec 11 08:09:26.905 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 08:09:26.906 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 08:09:26.906 INFO [stderr] 
Dec 11 08:09:26.957 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.51s
Dec 11 08:09:26.962 INFO [stderr] su: No module specific data is present
Dec 11 08:09:28.482 INFO running `"docker" "inspect" "8e978c48c3f4e3fa91bfb0a119eff51c4100e2afc5297f20894e5f1430af259e"`
Dec 11 08:09:28.884 INFO running `"docker" "rm" "-f" "8e978c48c3f4e3fa91bfb0a119eff51c4100e2afc5297f20894e5f1430af259e"`
Dec 11 08:09:29.276 INFO [stdout] 8e978c48c3f4e3fa91bfb0a119eff51c4100e2afc5297f20894e5f1430af259e