Dec 17 23:44:43.412 INFO checking gilbertw1/adventure-rust-future-tokio-code against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 23:44:43.412 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/gilbertw1/adventure-rust-future-tokio-code:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:44:43.594 INFO [stdout] cfe372dffa3ad11bf36a4c0b822542dffc32197b4d5aec733337bdb67885f723
Dec 17 23:44:43.598 INFO running `"docker" "start" "-a" "cfe372dffa3ad11bf36a4c0b822542dffc32197b4d5aec733337bdb67885f723"`
Dec 17 23:44:44.968 INFO [stderr]     Checking tokio-io v0.1.7
Dec 17 23:44:44.968 INFO [stderr]     Checking http v0.1.10
Dec 17 23:44:46.375 INFO [stderr]     Checking tokio-reactor v0.1.2
Dec 17 23:44:46.381 INFO [stderr]     Checking tokio-codec v0.1.0
Dec 17 23:44:46.383 INFO [stderr]     Checking tokio-fs v0.1.2
Dec 17 23:44:48.261 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 17 23:44:48.270 INFO [stderr]     Checking tokio-udp v0.1.1
Dec 17 23:44:49.434 INFO [stderr]     Checking tokio v0.1.7
Dec 17 23:44:50.830 INFO [stderr]     Checking tokio-core v0.1.17
Dec 17 23:44:51.078 INFO [stderr]     Checking h2 v0.1.12
Dec 17 23:44:52.757 INFO [stderr]     Checking domain v0.2.4
Dec 17 23:44:56.534 INFO [stderr]     Checking hyper v0.12.9
Dec 17 23:45:01.132 INFO [stderr]     Checking adventure-rust-future-and-tokio-code v0.1.0 (/opt/crater/workdir)
Dec 17 23:45:01.799 INFO [stderr] warning: unused variable: `result`
Dec 17 23:45:01.799 INFO [stderr]    --> src/main.rs:111:13
Dec 17 23:45:01.799 INFO [stderr]     |
Dec 17 23:45:01.799 INFO [stderr] 111 |         let result = self.request_sender.unbounded_send(ReverseLookupRequest { ip: ip, sender: resp_tx });
Dec 17 23:45:01.799 INFO [stderr]     |             ^^^^^^ help: consider using `_result` instead
Dec 17 23:45:01.799 INFO [stderr]     |
Dec 17 23:45:01.799 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 23:45:01.799 INFO [stderr] 
Dec 17 23:45:01.825 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 23:45:01.825 INFO [stderr]   --> src/main.rs:89:9
Dec 17 23:45:01.825 INFO [stderr]    |
Dec 17 23:45:01.825 INFO [stderr] 89 |         request.sender.send(response);
Dec 17 23:45:01.825 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:45:01.825 INFO [stderr]    |
Dec 17 23:45:01.825 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 23:45:01.825 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 23:45:01.825 INFO [stderr] 
Dec 17 23:45:01.826 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 23:45:01.826 INFO [stderr]    --> src/main.rs:125:9
Dec 17 23:45:01.826 INFO [stderr]     |
Dec 17 23:45:01.826 INFO [stderr] 125 |         tx.send(resolv);
Dec 17 23:45:01.826 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 17 23:45:01.826 INFO [stderr]     |
Dec 17 23:45:01.826 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 23:45:01.826 INFO [stderr] 
Dec 17 23:45:01.852 INFO [stderr] warning: unused variable: `result`
Dec 17 23:45:01.852 INFO [stderr]    --> src/main.rs:111:13
Dec 17 23:45:01.852 INFO [stderr]     |
Dec 17 23:45:01.852 INFO [stderr] 111 |         let result = self.request_sender.unbounded_send(ReverseLookupRequest { ip: ip, sender: resp_tx });
Dec 17 23:45:01.852 INFO [stderr]     |             ^^^^^^ help: consider using `_result` instead
Dec 17 23:45:01.852 INFO [stderr]     |
Dec 17 23:45:01.852 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 23:45:01.852 INFO [stderr] 
Dec 17 23:45:01.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 23:45:01.892 INFO [stderr]   --> src/main.rs:89:9
Dec 17 23:45:01.892 INFO [stderr]    |
Dec 17 23:45:01.892 INFO [stderr] 89 |         request.sender.send(response);
Dec 17 23:45:01.892 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:45:01.892 INFO [stderr]    |
Dec 17 23:45:01.892 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 23:45:01.892 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 23:45:01.892 INFO [stderr] 
Dec 17 23:45:01.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 23:45:01.892 INFO [stderr]    --> src/main.rs:125:9
Dec 17 23:45:01.892 INFO [stderr]     |
Dec 17 23:45:01.892 INFO [stderr] 125 |         tx.send(resolv);
Dec 17 23:45:01.892 INFO [stderr]     |         ^^^^^^^^^^^^^^^^
Dec 17 23:45:01.892 INFO [stderr]     |
Dec 17 23:45:01.892 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 23:45:01.892 INFO [stderr] 
Dec 17 23:45:01.927 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.25s
Dec 17 23:45:02.582 INFO running `"docker" "inspect" "cfe372dffa3ad11bf36a4c0b822542dffc32197b4d5aec733337bdb67885f723"`
Dec 17 23:45:02.848 INFO running `"docker" "rm" "-f" "cfe372dffa3ad11bf36a4c0b822542dffc32197b4d5aec733337bdb67885f723"`
Dec 17 23:45:03.187 INFO [stdout] cfe372dffa3ad11bf36a4c0b822542dffc32197b4d5aec733337bdb67885f723