Dec 17 22:19:36.804 INFO checking jianingy/blockchain-demo against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:19:36.804 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/jianingy/blockchain-demo:/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 22:19:37.212 INFO [stdout] d385683f379eb94115c1b8d8375788cf59de7d8ac67f938ff2b77266e15ccec6
Dec 17 22:19:37.218 INFO running `"docker" "start" "-a" "d385683f379eb94115c1b8d8375788cf59de7d8ac67f938ff2b77266e15ccec6"`
Dec 17 22:19:38.796 INFO [stderr]    Compiling serde v1.0.59
Dec 17 22:19:38.808 INFO [stderr]     Checking memchr v2.0.1
Dec 17 22:19:38.813 INFO [stderr]    Compiling backtrace-sys v0.1.19
Dec 17 22:19:38.814 INFO [stderr]     Checking base64 v0.9.1
Dec 17 22:19:38.814 INFO [stderr]    Compiling proc-macro2 v0.4.3
Dec 17 22:19:38.836 INFO [stderr]     Checking uuid v0.5.1
Dec 17 22:19:38.836 INFO [stderr]     Checking mustache v0.8.2
Dec 17 22:19:38.836 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 17 22:19:40.896 INFO [stderr]     Checking aho-corasick v0.6.4
Dec 17 22:19:40.897 INFO [stderr]     Checking hyper v0.11.27
Dec 17 22:19:43.502 INFO [stderr]     Checking regex v0.2.11
Dec 17 22:19:46.582 INFO [stderr]    Compiling quote v0.6.2
Dec 17 22:19:48.171 INFO [stderr]    Compiling syn v0.14.0
Dec 17 22:19:51.281 INFO [stderr]     Checking nickel v0.10.1
Dec 17 22:19:54.246 INFO [stderr]     Checking hyper-tls v0.1.3
Dec 17 22:19:57.537 INFO [stderr]    Compiling serde_derive v1.0.59
Dec 17 22:19:59.108 INFO [stderr]     Checking serde_urlencoded v0.5.2
Dec 17 22:19:59.108 INFO [stderr]     Checking serde_json v1.0.17
Dec 17 22:20:01.193 INFO [stderr]     Checking reqwest v0.8.5
Dec 17 22:20:03.263 INFO [stderr]     Checking backtrace v0.3.8
Dec 17 22:20:03.867 INFO [stderr]     Checking failure v0.1.1
Dec 17 22:20:13.811 INFO [stderr]     Checking blockchain-demo v0.1.0 (/opt/crater/workdir)
Dec 17 22:20:15.796 INFO [stderr] warning: unused imports: `Serialize`, `Serializer`
Dec 17 22:20:15.796 INFO [stderr]  --> src/blockchain.rs:4:18
Dec 17 22:20:15.796 INFO [stderr]   |
Dec 17 22:20:15.796 INFO [stderr] 4 | use serde::ser::{Serialize, Serializer};
Dec 17 22:20:15.796 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
Dec 17 22:20:15.796 INFO [stderr]   |
Dec 17 22:20:15.796 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:20:15.796 INFO [stderr] 
Dec 17 22:20:15.916 INFO [stderr] warning: unused imports: `Serialize`, `Serializer`
Dec 17 22:20:15.916 INFO [stderr]  --> src/blockchain.rs:4:18
Dec 17 22:20:15.916 INFO [stderr]   |
Dec 17 22:20:15.916 INFO [stderr] 4 | use serde::ser::{Serialize, Serializer};
Dec 17 22:20:15.916 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
Dec 17 22:20:15.916 INFO [stderr]   |
Dec 17 22:20:15.916 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:20:15.916 INFO [stderr] 
Dec 17 22:20:16.925 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.52s
Dec 17 22:20:18.035 INFO running `"docker" "inspect" "d385683f379eb94115c1b8d8375788cf59de7d8ac67f938ff2b77266e15ccec6"`
Dec 17 22:20:18.462 INFO running `"docker" "rm" "-f" "d385683f379eb94115c1b8d8375788cf59de7d8ac67f938ff2b77266e15ccec6"`
Dec 17 22:20:18.856 INFO [stdout] d385683f379eb94115c1b8d8375788cf59de7d8ac67f938ff2b77266e15ccec6