Dec 11 16:22:05.731 INFO checking jianingy/blockchain-demo against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:22:05.732 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 16:22:05.946 INFO [stdout] 9e96b5512fe9e7d813f0eda59ed8d538b9c9f839d37947d83d8e539f921be01c
Dec 11 16:22:05.950 INFO running `"docker" "start" "-a" "9e96b5512fe9e7d813f0eda59ed8d538b9c9f839d37947d83d8e539f921be01c"`
Dec 11 16:22:06.376 INFO [stderr] usermod: no changes
Dec 11 16:22:06.736 INFO [stderr]    Compiling serde v1.0.59
Dec 11 16:22:06.744 INFO [stderr]    Compiling proc-macro2 v0.4.3
Dec 11 16:22:06.769 INFO [stderr]     Checking uuid v0.5.1
Dec 11 16:22:06.770 INFO [stderr]     Checking mustache v0.8.2
Dec 11 16:22:06.770 INFO [stderr]     Checking backtrace-sys v0.1.19
Dec 11 16:22:06.771 INFO [stderr]     Checking regex v0.2.11
Dec 11 16:22:06.771 INFO [stderr]     Checking openssl v0.9.24
Dec 11 16:22:06.774 INFO [stderr]     Checking hyper v0.10.13
Dec 11 16:22:08.213 INFO [stderr]     Checking backtrace v0.3.8
Dec 11 16:22:10.013 INFO [stderr]     Checking hyper v0.11.27
Dec 11 16:22:11.819 INFO [stderr]     Checking failure v0.1.1
Dec 11 16:22:15.756 INFO [stderr]    Compiling quote v0.6.2
Dec 11 16:22:16.800 INFO [stderr]    Compiling syn v0.14.0
Dec 11 16:22:17.313 INFO [stderr]     Checking native-tls v0.1.5
Dec 11 16:22:19.232 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 11 16:22:22.380 INFO [stderr]     Checking nickel v0.10.1
Dec 11 16:22:24.688 INFO [stderr]     Checking hyper-tls v0.1.3
Dec 11 16:22:29.388 INFO [stderr]    Compiling serde_derive v1.0.59
Dec 11 16:22:30.060 INFO [stderr]     Checking serde_urlencoded v0.5.2
Dec 11 16:22:30.060 INFO [stderr]     Checking serde_json v1.0.17
Dec 11 16:22:32.681 INFO [stderr]     Checking reqwest v0.8.5
Dec 11 16:22:41.828 INFO [stderr]     Checking blockchain-demo v0.1.0 (/source)
Dec 11 16:22:47.564 INFO [stderr] warning: unused imports: `Serialize`, `Serializer`
Dec 11 16:22:47.564 INFO [stderr]  --> src/blockchain.rs:4:18
Dec 11 16:22:47.564 INFO [stderr]   |
Dec 11 16:22:47.564 INFO [stderr] 4 | use serde::ser::{Serialize, Serializer};
Dec 11 16:22:47.564 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
Dec 11 16:22:47.564 INFO [stderr]   |
Dec 11 16:22:47.564 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:22:47.564 INFO [stderr] 
Dec 11 16:22:47.989 INFO [stderr] warning: unused imports: `Serialize`, `Serializer`
Dec 11 16:22:47.990 INFO [stderr]  --> src/blockchain.rs:4:18
Dec 11 16:22:47.990 INFO [stderr]   |
Dec 11 16:22:47.990 INFO [stderr] 4 | use serde::ser::{Serialize, Serializer};
Dec 11 16:22:47.990 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
Dec 11 16:22:47.990 INFO [stderr]   |
Dec 11 16:22:47.990 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:22:47.990 INFO [stderr] 
Dec 11 16:22:48.624 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.23s
Dec 11 16:22:48.642 INFO [stderr] su: No module specific data is present
Dec 11 16:22:50.012 INFO running `"docker" "inspect" "9e96b5512fe9e7d813f0eda59ed8d538b9c9f839d37947d83d8e539f921be01c"`
Dec 11 16:22:50.382 INFO running `"docker" "rm" "-f" "9e96b5512fe9e7d813f0eda59ed8d538b9c9f839d37947d83d8e539f921be01c"`
Dec 11 16:22:50.717 INFO [stdout] 9e96b5512fe9e7d813f0eda59ed8d538b9c9f839d37947d83d8e539f921be01c