Dec 11 12:58:08.321 INFO checking nakakura/tokio-blocking against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 12:58:08.321 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 12:58:08.832 INFO [stdout] 06a73e9e98252bee1024c4af557286ae413aff894e843a1ef238054e03c0006d
Dec 11 12:58:08.834 INFO running `"docker" "start" "-a" "06a73e9e98252bee1024c4af557286ae413aff894e843a1ef238054e03c0006d"`
Dec 11 12:58:09.464 INFO [stderr] usermod: no changes
Dec 11 12:58:09.568 INFO [stderr]     Checking net2 v0.2.33
Dec 11 12:58:09.569 INFO [stderr]     Checking tokio-io v0.1.7
Dec 11 12:58:09.569 INFO [stderr]     Checking crossbeam-epoch v0.4.3
Dec 11 12:58:09.569 INFO [stderr]     Checking chrono v0.4.5
Dec 11 12:58:10.885 INFO [stderr]     Checking crossbeam-deque v0.3.1
Dec 11 12:58:11.077 INFO [stderr]     Checking mio v0.6.15
Dec 11 12:58:11.808 INFO [stderr]     Checking tokio-codec v0.1.0
Dec 11 12:58:12.073 INFO [stderr]     Checking tokio-threadpool v0.1.5
Dec 11 12:58:13.480 INFO [stderr]     Checking tokio-reactor v0.1.3
Dec 11 12:58:14.305 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 11 12:58:14.613 INFO [stderr]     Checking tokio-udp v0.1.1
Dec 11 12:58:14.613 INFO [stderr]     Checking tokio-tcp v0.1.1
Dec 11 12:58:16.160 INFO [stderr]     Checking tokio v0.1.7
Dec 11 12:58:17.628 INFO [stderr]     Checking wit v0.1.0 (/source)
Dec 11 12:58:18.672 INFO [stderr] warning: unused imports: `err`, `ok`
Dec 11 12:58:18.672 INFO [stderr]  --> src/main.rs:7:23
Dec 11 12:58:18.672 INFO [stderr]   |
Dec 11 12:58:18.672 INFO [stderr] 7 | use futures::future::{err, ok};
Dec 11 12:58:18.672 INFO [stderr]   |                       ^^^  ^^
Dec 11 12:58:18.672 INFO [stderr]   |
Dec 11 12:58:18.672 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 12:58:18.672 INFO [stderr] 
Dec 11 12:58:18.739 INFO [stderr] warning: field is never used: `running`
Dec 11 12:58:18.739 INFO [stderr]   --> src/main.rs:17:5
Dec 11 12:58:18.739 INFO [stderr]    |
Dec 11 12:58:18.739 INFO [stderr] 17 |     running: bool,
Dec 11 12:58:18.739 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 12:58:18.739 INFO [stderr]    |
Dec 11 12:58:18.748 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 12:58:18.748 INFO [stderr] 
Dec 11 12:58:18.760 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:58:18.760 INFO [stderr]   --> src/main.rs:35:9
Dec 11 12:58:18.760 INFO [stderr]    |
Dec 11 12:58:18.760 INFO [stderr] 35 | /         blocking(|| {
Dec 11 12:58:18.760 INFO [stderr] 36 | |             println!("start {}, now: {:?}, end_time: {:?}", self.token, Utc::now(), self.end_time);
Dec 11 12:58:18.760 INFO [stderr] 37 | |             while Utc::now() < self.end_time {
Dec 11 12:58:18.760 INFO [stderr] 38 | |                 let delta_sec = self.end_time.timestamp() - Utc::now().timestamp();
Dec 11 12:58:18.760 INFO [stderr] ...  |
Dec 11 12:58:18.760 INFO [stderr] 43 | |             }
Dec 11 12:58:18.760 INFO [stderr] 44 | |         });
Dec 11 12:58:18.760 INFO [stderr]    | |___________^
Dec 11 12:58:18.760 INFO [stderr]    |
Dec 11 12:58:18.760 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 12:58:18.760 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:58:18.760 INFO [stderr] 
Dec 11 12:58:19.076 INFO [stderr] warning: unused imports: `err`, `ok`
Dec 11 12:58:19.076 INFO [stderr]  --> src/main.rs:7:23
Dec 11 12:58:19.076 INFO [stderr]   |
Dec 11 12:58:19.076 INFO [stderr] 7 | use futures::future::{err, ok};
Dec 11 12:58:19.076 INFO [stderr]   |                       ^^^  ^^
Dec 11 12:58:19.076 INFO [stderr]   |
Dec 11 12:58:19.076 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 12:58:19.076 INFO [stderr] 
Dec 11 12:58:19.180 INFO [stderr] warning: field is never used: `running`
Dec 11 12:58:19.180 INFO [stderr]   --> src/main.rs:17:5
Dec 11 12:58:19.180 INFO [stderr]    |
Dec 11 12:58:19.180 INFO [stderr] 17 |     running: bool,
Dec 11 12:58:19.180 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 12:58:19.180 INFO [stderr]    |
Dec 11 12:58:19.180 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 12:58:19.180 INFO [stderr] 
Dec 11 12:58:19.196 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:58:19.196 INFO [stderr]   --> src/main.rs:35:9
Dec 11 12:58:19.196 INFO [stderr]    |
Dec 11 12:58:19.196 INFO [stderr] 35 | /         blocking(|| {
Dec 11 12:58:19.196 INFO [stderr] 36 | |             println!("start {}, now: {:?}, end_time: {:?}", self.token, Utc::now(), self.end_time);
Dec 11 12:58:19.196 INFO [stderr] 37 | |             while Utc::now() < self.end_time {
Dec 11 12:58:19.196 INFO [stderr] 38 | |                 let delta_sec = self.end_time.timestamp() - Utc::now().timestamp();
Dec 11 12:58:19.196 INFO [stderr] ...  |
Dec 11 12:58:19.196 INFO [stderr] 43 | |             }
Dec 11 12:58:19.196 INFO [stderr] 44 | |         });
Dec 11 12:58:19.196 INFO [stderr]    | |___________^
Dec 11 12:58:19.196 INFO [stderr]    |
Dec 11 12:58:19.196 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 12:58:19.196 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:58:19.196 INFO [stderr] 
Dec 11 12:58:19.245 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.76s
Dec 11 12:58:19.266 INFO [stderr] su: No module specific data is present
Dec 11 12:58:20.230 INFO running `"docker" "inspect" "06a73e9e98252bee1024c4af557286ae413aff894e843a1ef238054e03c0006d"`
Dec 11 12:58:20.550 INFO running `"docker" "rm" "-f" "06a73e9e98252bee1024c4af557286ae413aff894e843a1ef238054e03c0006d"`
Dec 11 12:58:20.904 INFO [stdout] 06a73e9e98252bee1024c4af557286ae413aff894e843a1ef238054e03c0006d