Dec 17 19:00:44.943 INFO checking nakakura/tokio-blocking against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:00:44.943 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/nakakura/tokio-blocking:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 19:00:45.132 INFO [stdout] aca23f335669f6dcb70a1bbbf3b9530ea9c10ccabc3b2db2a250d94c82464bec
Dec 17 19:00:45.133 INFO running `"docker" "start" "-a" "aca23f335669f6dcb70a1bbbf3b9530ea9c10ccabc3b2db2a250d94c82464bec"`
Dec 17 19:00:46.042 INFO [stderr]     Checking mio v0.6.15
Dec 17 19:00:46.049 INFO [stderr]     Checking tokio-io v0.1.7
Dec 17 19:00:46.053 INFO [stderr]     Checking tokio-threadpool v0.1.5
Dec 17 19:00:47.228 INFO [stderr]     Checking tokio-codec v0.1.0
Dec 17 19:00:47.589 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 17 19:00:48.085 INFO [stderr]     Checking tokio-reactor v0.1.3
Dec 17 19:00:48.940 INFO [stderr]     Checking tokio-udp v0.1.1
Dec 17 19:00:48.940 INFO [stderr]     Checking tokio-tcp v0.1.1
Dec 17 19:00:49.728 INFO [stderr]     Checking tokio v0.1.7
Dec 17 19:00:50.560 INFO [stderr]     Checking wit v0.1.0 (/opt/crater/workdir)
Dec 17 19:00:50.999 INFO [stderr] warning: unused imports: `err`, `ok`
Dec 17 19:00:50.999 INFO [stderr]  --> src/main.rs:7:23
Dec 17 19:00:50.999 INFO [stderr]   |
Dec 17 19:00:50.999 INFO [stderr] 7 | use futures::future::{err, ok};
Dec 17 19:00:50.999 INFO [stderr]   |                       ^^^  ^^
Dec 17 19:00:51.000 INFO [stderr]   |
Dec 17 19:00:51.000 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:00:51.000 INFO [stderr] 
Dec 17 19:00:51.168 INFO [stderr] warning: unused imports: `err`, `ok`
Dec 17 19:00:51.168 INFO [stderr]  --> src/main.rs:7:23
Dec 17 19:00:51.168 INFO [stderr]   |
Dec 17 19:00:51.168 INFO [stderr] 7 | use futures::future::{err, ok};
Dec 17 19:00:51.168 INFO [stderr]   |                       ^^^  ^^
Dec 17 19:00:51.168 INFO [stderr]   |
Dec 17 19:00:51.168 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:00:51.168 INFO [stderr] 
Dec 17 19:00:51.208 INFO [stderr] warning: field is never used: `running`
Dec 17 19:00:51.208 INFO [stderr]   --> src/main.rs:17:5
Dec 17 19:00:51.208 INFO [stderr]    |
Dec 17 19:00:51.208 INFO [stderr] 17 |     running: bool,
Dec 17 19:00:51.208 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 17 19:00:51.208 INFO [stderr]    |
Dec 17 19:00:51.208 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 19:00:51.208 INFO [stderr] 
Dec 17 19:00:51.224 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:00:51.224 INFO [stderr]   --> src/main.rs:35:9
Dec 17 19:00:51.224 INFO [stderr]    |
Dec 17 19:00:51.224 INFO [stderr] 35 | /         blocking(|| {
Dec 17 19:00:51.224 INFO [stderr] 36 | |             println!("start {}, now: {:?}, end_time: {:?}", self.token, Utc::now(), self.end_time);
Dec 17 19:00:51.224 INFO [stderr] 37 | |             while Utc::now() < self.end_time {
Dec 17 19:00:51.224 INFO [stderr] 38 | |                 let delta_sec = self.end_time.timestamp() - Utc::now().timestamp();
Dec 17 19:00:51.224 INFO [stderr] ...  |
Dec 17 19:00:51.224 INFO [stderr] 43 | |             }
Dec 17 19:00:51.224 INFO [stderr] 44 | |         });
Dec 17 19:00:51.224 INFO [stderr]    | |___________^
Dec 17 19:00:51.224 INFO [stderr]    |
Dec 17 19:00:51.224 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:00:51.224 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:00:51.224 INFO [stderr] 
Dec 17 19:00:51.292 INFO [stderr] warning: field is never used: `running`
Dec 17 19:00:51.292 INFO [stderr]   --> src/main.rs:17:5
Dec 17 19:00:51.292 INFO [stderr]    |
Dec 17 19:00:51.292 INFO [stderr] 17 |     running: bool,
Dec 17 19:00:51.292 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 17 19:00:51.292 INFO [stderr]    |
Dec 17 19:00:51.292 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 19:00:51.292 INFO [stderr] 
Dec 17 19:00:51.298 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:00:51.298 INFO [stderr]   --> src/main.rs:35:9
Dec 17 19:00:51.298 INFO [stderr]    |
Dec 17 19:00:51.298 INFO [stderr] 35 | /         blocking(|| {
Dec 17 19:00:51.298 INFO [stderr] 36 | |             println!("start {}, now: {:?}, end_time: {:?}", self.token, Utc::now(), self.end_time);
Dec 17 19:00:51.298 INFO [stderr] 37 | |             while Utc::now() < self.end_time {
Dec 17 19:00:51.298 INFO [stderr] 38 | |                 let delta_sec = self.end_time.timestamp() - Utc::now().timestamp();
Dec 17 19:00:51.298 INFO [stderr] ...  |
Dec 17 19:00:51.299 INFO [stderr] 43 | |             }
Dec 17 19:00:51.299 INFO [stderr] 44 | |         });
Dec 17 19:00:51.299 INFO [stderr]    | |___________^
Dec 17 19:00:51.299 INFO [stderr]    |
Dec 17 19:00:51.299 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:00:51.299 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:00:51.299 INFO [stderr] 
Dec 17 19:00:51.331 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.43s
Dec 17 19:00:52.140 INFO running `"docker" "inspect" "aca23f335669f6dcb70a1bbbf3b9530ea9c10ccabc3b2db2a250d94c82464bec"`
Dec 17 19:00:52.432 INFO running `"docker" "rm" "-f" "aca23f335669f6dcb70a1bbbf3b9530ea9c10ccabc3b2db2a250d94c82464bec"`
Dec 17 19:00:52.636 INFO [stdout] aca23f335669f6dcb70a1bbbf3b9530ea9c10ccabc3b2db2a250d94c82464bec