Nov 06 20:02:41.330 INFO checking jianingy/blockchain-demo against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 20:02:41.330 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-0/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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"`
Nov 06 20:02:41.573 INFO blam! 90f93f4e85ae57a8322f1e9fa5f9a7763192614459c9c9658449014e542bf613
Nov 06 20:02:41.574 INFO running `"docker" "start" "-a" "90f93f4e85ae57a8322f1e9fa5f9a7763192614459c9c9658449014e542bf613"`
Nov 06 20:02:42.536 INFO kablam! usermod: no changes
Nov 06 20:02:42.884 INFO kablam!    Compiling backtrace-sys v0.1.19
Nov 06 20:02:42.892 INFO kablam!     Checking mustache v0.8.2
Nov 06 20:02:42.892 INFO kablam!     Checking tokio-tls v0.1.4
Nov 06 20:02:44.808 INFO kablam!     Checking nickel v0.10.1
Nov 06 20:02:45.123 INFO kablam!     Checking hyper-tls v0.1.3
Nov 06 20:02:50.352 INFO kablam!     Checking reqwest v0.8.5
Nov 06 20:03:00.332 INFO kablam!     Checking backtrace v0.3.8
Nov 06 20:03:00.976 INFO kablam!     Checking failure v0.1.1
Nov 06 20:03:01.652 INFO kablam!     Checking blockchain-demo v0.1.0 (/source)
Nov 06 20:03:07.392 INFO kablam! warning: unused imports: `Serialize`, `Serializer`
Nov 06 20:03:07.392 INFO kablam!  --> src/blockchain.rs:4:18
Nov 06 20:03:07.392 INFO kablam!   |
Nov 06 20:03:07.392 INFO kablam! 4 | use serde::ser::{Serialize, Serializer};
Nov 06 20:03:07.392 INFO kablam!   |                  ^^^^^^^^^  ^^^^^^^^^^
Nov 06 20:03:07.392 INFO kablam!   |
Nov 06 20:03:07.392 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 06 20:03:07.392 INFO kablam! 
Nov 06 20:03:08.433 INFO kablam! warning: unused imports: `Serialize`, `Serializer`
Nov 06 20:03:08.433 INFO kablam!  --> src/blockchain.rs:4:18
Nov 06 20:03:08.433 INFO kablam!   |
Nov 06 20:03:08.434 INFO kablam! 4 | use serde::ser::{Serialize, Serializer};
Nov 06 20:03:08.434 INFO kablam!   |                  ^^^^^^^^^  ^^^^^^^^^^
Nov 06 20:03:08.434 INFO kablam!   |
Nov 06 20:03:08.435 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 06 20:03:08.435 INFO kablam! 
Nov 06 20:03:08.985 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 26.42s
Nov 06 20:03:08.999 INFO kablam! su: No module specific data is present
Nov 06 20:03:09.800 INFO running `"docker" "rm" "-f" "90f93f4e85ae57a8322f1e9fa5f9a7763192614459c9c9658449014e542bf613"`
Nov 06 20:03:10.088 INFO blam! 90f93f4e85ae57a8322f1e9fa5f9a7763192614459c9c9658449014e542bf613