Dec 19 07:30:07.030 INFO checking tcsc/asyncho against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 07:30:07.030 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/tcsc/asyncho:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 07:30:07.597 INFO [stdout] 08f4022d034717d6e95a1e7f6e2025c105dfdb60aa89a60c4300d9ebd8394034
Dec 19 07:30:07.599 INFO running `"docker" "start" "-a" "08f4022d034717d6e95a1e7f6e2025c105dfdb60aa89a60c4300d9ebd8394034"`
Dec 19 07:30:10.410 INFO [stderr]     Checking futures v0.1.13
Dec 19 07:30:10.410 INFO [stderr]     Checking log v0.3.7
Dec 19 07:30:10.416 INFO [stderr]     Checking memchr v1.0.1
Dec 19 07:30:10.417 INFO [stderr]     Checking thread-id v3.0.0
Dec 19 07:30:10.417 INFO [stderr]     Checking iovec v0.1.0
Dec 19 07:30:10.417 INFO [stderr]     Checking net2 v0.2.27
Dec 19 07:30:11.316 INFO [stderr]     Checking thread_local v0.3.3
Dec 19 07:30:11.384 INFO [stderr]     Checking bytes v0.4.2
Dec 19 07:30:11.621 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 19 07:30:13.068 INFO [stderr]     Checking mio v0.6.6
Dec 19 07:30:13.578 INFO [stderr]     Checking regex v0.2.1
Dec 19 07:30:17.530 INFO [stderr]     Checking tokio-io v0.1.1
Dec 19 07:30:17.627 INFO [stderr]     Checking env_logger v0.4.2
Dec 19 07:30:18.577 INFO [stderr]     Checking tokio-core v0.1.6
Dec 19 07:30:19.638 INFO [stderr]     Checking asyncho v0.1.0 (/opt/crater/workdir)
Dec 19 07:30:20.200 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:30:20.201 INFO [stderr]    --> src/service.rs:124:17
Dec 19 07:30:20.201 INFO [stderr]     |
Dec 19 07:30:20.201 INFO [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
Dec 19 07:30:20.202 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:30:20.202 INFO [stderr]     |
Dec 19 07:30:20.202 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 07:30:20.202 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:30:20.203 INFO [stderr] 
Dec 19 07:30:20.388 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:30:20.388 INFO [stderr]    --> src/service.rs:124:17
Dec 19 07:30:20.388 INFO [stderr]     |
Dec 19 07:30:20.388 INFO [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
Dec 19 07:30:20.388 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:30:20.388 INFO [stderr]     |
Dec 19 07:30:20.388 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 07:30:20.388 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:30:20.388 INFO [stderr] 
Dec 19 07:30:20.435 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.14s
Dec 19 07:30:21.552 INFO running `"docker" "inspect" "08f4022d034717d6e95a1e7f6e2025c105dfdb60aa89a60c4300d9ebd8394034"`
Dec 19 07:30:22.054 INFO running `"docker" "rm" "-f" "08f4022d034717d6e95a1e7f6e2025c105dfdb60aa89a60c4300d9ebd8394034"`
Dec 19 07:30:22.324 INFO [stdout] 08f4022d034717d6e95a1e7f6e2025c105dfdb60aa89a60c4300d9ebd8394034