Dec 04 16:38:18.418 INFO checking jianingy/blockchain-demo against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 16:38:18.418 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 16:38:18.647 INFO [stdout] 944ed84cf9df45209b26e60cc8f0cb074361b005affabcf33fcfa77f4bbfe82c
Dec 04 16:38:18.649 INFO running `"docker" "start" "-a" "944ed84cf9df45209b26e60cc8f0cb074361b005affabcf33fcfa77f4bbfe82c"`
Dec 04 16:38:19.263 INFO [stderr] usermod: no changes
Dec 04 16:38:19.534 INFO [stderr]     Checking mustache v0.8.2
Dec 04 16:38:19.535 INFO [stderr]     Checking openssl v0.9.24
Dec 04 16:38:19.535 INFO [stderr]     Checking serde_urlencoded v0.5.2
Dec 04 16:38:19.535 INFO [stderr]     Checking sha2 v0.7.1
Dec 04 16:38:19.535 INFO [stderr]     Checking failure v0.1.1
Dec 04 16:38:20.973 INFO [stderr]     Checking nickel v0.10.1
Dec 04 16:38:24.138 INFO [stderr]     Checking native-tls v0.1.5
Dec 04 16:38:25.135 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 04 16:38:26.779 INFO [stderr]     Checking hyper-tls v0.1.3
Dec 04 16:38:28.468 INFO [stderr]     Checking reqwest v0.8.5
Dec 04 16:38:31.335 INFO [stderr]     Checking blockchain-demo v0.1.0 (/source)
Dec 04 16:38:35.171 INFO [stderr] warning: unused imports: `Serialize`, `Serializer`
Dec 04 16:38:35.171 INFO [stderr]  --> src/blockchain.rs:4:18
Dec 04 16:38:35.171 INFO [stderr]   |
Dec 04 16:38:35.171 INFO [stderr] 4 | use serde::ser::{Serialize, Serializer};
Dec 04 16:38:35.171 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
Dec 04 16:38:35.171 INFO [stderr]   |
Dec 04 16:38:35.171 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 16:38:35.171 INFO [stderr] 
Dec 04 16:38:35.201 INFO [stderr] warning: unused imports: `Serialize`, `Serializer`
Dec 04 16:38:35.201 INFO [stderr]  --> src/blockchain.rs:4:18
Dec 04 16:38:35.201 INFO [stderr]   |
Dec 04 16:38:35.201 INFO [stderr] 4 | use serde::ser::{Serialize, Serializer};
Dec 04 16:38:35.201 INFO [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
Dec 04 16:38:35.201 INFO [stderr]   |
Dec 04 16:38:35.201 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 16:38:35.201 INFO [stderr] 
Dec 04 16:38:35.839 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.55s
Dec 04 16:38:35.849 INFO [stderr] su: No module specific data is present
Dec 04 16:38:36.403 INFO running `"docker" "inspect" "944ed84cf9df45209b26e60cc8f0cb074361b005affabcf33fcfa77f4bbfe82c"`
Dec 04 16:38:36.707 INFO running `"docker" "rm" "-f" "944ed84cf9df45209b26e60cc8f0cb074361b005affabcf33fcfa77f4bbfe82c"`
Dec 04 16:38:36.973 INFO [stdout] 944ed84cf9df45209b26e60cc8f0cb074361b005affabcf33fcfa77f4bbfe82c