[INFO] updating cached repository nakakura/tokio-blocking
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nakakura/tokio-blocking
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nakakura/tokio-blocking" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/nakakura/tokio-blocking"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/nakakura/tokio-blocking'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nakakura/tokio-blocking" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/nakakura/tokio-blocking"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/nakakura/tokio-blocking'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f821d4a958d32832301e7cc323a1cd5aab348fb
[INFO] sha for GitHub repo nakakura/tokio-blocking: 2f821d4a958d32832301e7cc323a1cd5aab348fb
[INFO] validating manifest of nakakura/tokio-blocking on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nakakura/tokio-blocking on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nakakura/tokio-blocking
[INFO] finished frobbing nakakura/tokio-blocking
[INFO] frobbed toml for nakakura/tokio-blocking written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/nakakura/tokio-blocking/Cargo.toml
[INFO] started frobbing nakakura/tokio-blocking
[INFO] finished frobbing nakakura/tokio-blocking
[INFO] frobbed toml for nakakura/tokio-blocking written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/nakakura/tokio-blocking/Cargo.toml
[INFO] crate nakakura/tokio-blocking already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nakakura/tokio-blocking against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-5/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/nakakura/tokio-blocking:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e804e00e7f5e5794d9f61caa1e80596959cc85f64f029c776dcd95461f4df574
[INFO] running `"docker" "start" "-a" "e804e00e7f5e5794d9f61caa1e80596959cc85f64f029c776dcd95461f4df574"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking chrono v0.4.5
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]     Checking tokio-reactor v0.1.3
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking wit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `err`, `ok`
[INFO] [stderr]  --> src/main.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::future::{err, ok};
[INFO] [stderr]   |                       ^^^  ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `err`, `ok`
[INFO] [stderr]  --> src/main.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::future::{err, ok};
[INFO] [stderr]   |                       ^^^  ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `running`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     running: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 | /         blocking(|| {
[INFO] [stderr] 36 | |             println!("start {}, now: {:?}, end_time: {:?}", self.token, Utc::now(), self.end_time);
[INFO] [stderr] 37 | |             while Utc::now() < self.end_time {
[INFO] [stderr] 38 | |                 let delta_sec = self.end_time.timestamp() - Utc::now().timestamp();
[INFO] [stderr] ...  |
[INFO] [stderr] 43 | |             }
[INFO] [stderr] 44 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `running`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     running: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 | /         blocking(|| {
[INFO] [stderr] 36 | |             println!("start {}, now: {:?}, end_time: {:?}", self.token, Utc::now(), self.end_time);
[INFO] [stderr] 37 | |             while Utc::now() < self.end_time {
[INFO] [stderr] 38 | |                 let delta_sec = self.end_time.timestamp() - Utc::now().timestamp();
[INFO] [stderr] ...  |
[INFO] [stderr] 43 | |             }
[INFO] [stderr] 44 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.27s
[INFO] running `"docker" "inspect" "e804e00e7f5e5794d9f61caa1e80596959cc85f64f029c776dcd95461f4df574"`
[INFO] running `"docker" "rm" "-f" "e804e00e7f5e5794d9f61caa1e80596959cc85f64f029c776dcd95461f4df574"`
[INFO] [stdout] e804e00e7f5e5794d9f61caa1e80596959cc85f64f029c776dcd95461f4df574