Oct 12 19:47:06.437 INFO checking jianingy/blockchain-demo against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 19:47:06.438 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 19:47:06.659 INFO blam! aa1d3aa966594505bdda71408e46387365608b1e4cd60d38fa764fbd65cc7cba
Oct 12 19:47:06.661 INFO running `"docker" "start" "-a" "aa1d3aa966594505bdda71408e46387365608b1e4cd60d38fa764fbd65cc7cba"`
Oct 12 19:47:07.250 INFO kablam! usermod: no changes
Oct 12 19:47:07.581 INFO kablam!     Checking groupable v0.2.0
Oct 12 19:47:07.600 INFO kablam!     Checking mustache v0.8.2
Oct 12 19:47:07.600 INFO kablam!     Checking backtrace-sys v0.1.19
Oct 12 19:47:07.600 INFO kablam!     Checking openssl v0.9.24
Oct 12 19:47:07.600 INFO kablam!     Checking serde_urlencoded v0.5.2
Oct 12 19:47:07.600 INFO kablam!    Compiling serde_derive v1.0.59
Oct 12 19:47:08.608 INFO kablam!     Checking backtrace v0.3.8
Oct 12 19:47:09.794 INFO kablam!     Checking nickel v0.10.1
Oct 12 19:47:09.816 INFO kablam!     Checking failure v0.1.1
Oct 12 19:47:14.654 INFO kablam!     Checking native-tls v0.1.5
Oct 12 19:47:16.583 INFO kablam!     Checking tokio-tls v0.1.4
Oct 12 19:47:18.196 INFO kablam!     Checking hyper-tls v0.1.3
Oct 12 19:47:20.409 INFO kablam!     Checking reqwest v0.8.5
Oct 12 19:47:28.755 INFO kablam!     Checking blockchain-demo v0.1.0 (/source)
Oct 12 19:47:34.741 INFO kablam! warning: unused imports: `Serialize`, `Serializer`
Oct 12 19:47:34.741 INFO kablam!  --> src/blockchain.rs:4:18
Oct 12 19:47:34.741 INFO kablam!   |
Oct 12 19:47:34.742 INFO kablam! 4 | use serde::ser::{Serialize, Serializer};
Oct 12 19:47:34.742 INFO kablam!   |                  ^^^^^^^^^  ^^^^^^^^^^
Oct 12 19:47:34.742 INFO kablam!   |
Oct 12 19:47:34.743 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 19:47:34.743 INFO kablam! 
Oct 12 19:47:35.028 INFO kablam! warning: unused imports: `Serialize`, `Serializer`
Oct 12 19:47:35.028 INFO kablam!  --> src/blockchain.rs:4:18
Oct 12 19:47:35.028 INFO kablam!   |
Oct 12 19:47:35.028 INFO kablam! 4 | use serde::ser::{Serialize, Serializer};
Oct 12 19:47:35.028 INFO kablam!   |                  ^^^^^^^^^  ^^^^^^^^^^
Oct 12 19:47:35.028 INFO kablam!   |
Oct 12 19:47:35.028 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 19:47:35.028 INFO kablam! 
Oct 12 19:47:35.909 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 28.63s
Oct 12 19:47:35.926 INFO kablam! su: No module specific data is present
Oct 12 19:47:36.649 INFO running `"docker" "rm" "-f" "aa1d3aa966594505bdda71408e46387365608b1e4cd60d38fa764fbd65cc7cba"`
Oct 12 19:47:36.948 INFO blam! aa1d3aa966594505bdda71408e46387365608b1e4cd60d38fa764fbd65cc7cba