Oct 12 19:47:06.589 INFO checking jianingy/blockchain-demo against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 19:47:06.589 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 19:47:06.828 INFO blam! 1577e0a3791bec60962dfcf031028870bbddeccc9174144c1ad6cdc6fdcbae74
Oct 12 19:47:06.834 INFO running `"docker" "start" "-a" "1577e0a3791bec60962dfcf031028870bbddeccc9174144c1ad6cdc6fdcbae74"`
Oct 12 19:47:07.453 INFO kablam! usermod: no changes
Oct 12 19:47:07.792 INFO kablam!     Checking mustache v0.8.2
Oct 12 19:47:07.824 INFO kablam!     Checking openssl v0.9.24
Oct 12 19:47:07.840 INFO kablam!     Checking failure v0.1.1
Oct 12 19:47:07.840 INFO kablam!     Checking hyper v0.11.27
Oct 12 19:47:09.668 INFO kablam!     Checking nickel v0.10.1
Oct 12 19:47:14.100 INFO kablam!     Checking native-tls v0.1.5
Oct 12 19:47:15.318 INFO kablam!     Checking tokio-tls v0.1.4
Oct 12 19:47:19.404 INFO kablam!     Checking hyper-tls v0.1.3
Oct 12 19:47:21.556 INFO kablam!     Checking reqwest v0.8.5
Oct 12 19:47:24.969 INFO kablam!     Checking blockchain-demo v0.1.0 (/source)
Oct 12 19:47:30.356 INFO kablam! warning: unused imports: `Serialize`, `Serializer`
Oct 12 19:47:30.356 INFO kablam!  --> src/blockchain.rs:4:18
Oct 12 19:47:30.356 INFO kablam!   |
Oct 12 19:47:30.357 INFO kablam! 4 | use serde::ser::{Serialize, Serializer};
Oct 12 19:47:30.357 INFO kablam!   |                  ^^^^^^^^^  ^^^^^^^^^^
Oct 12 19:47:30.357 INFO kablam!   |
Oct 12 19:47:30.357 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 19:47:30.357 INFO kablam! 
Oct 12 19:47:30.596 INFO kablam! warning: unused imports: `Serialize`, `Serializer`
Oct 12 19:47:30.596 INFO kablam!  --> src/blockchain.rs:4:18
Oct 12 19:47:30.597 INFO kablam!   |
Oct 12 19:47:30.598 INFO kablam! 4 | use serde::ser::{Serialize, Serializer};
Oct 12 19:47:30.598 INFO kablam!   |                  ^^^^^^^^^  ^^^^^^^^^^
Oct 12 19:47:30.616 INFO kablam!   |
Oct 12 19:47:30.617 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 19:47:30.617 INFO kablam! 
Oct 12 19:47:31.526 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 24.05s
Oct 12 19:47:31.565 INFO kablam! su: No module specific data is present
Oct 12 19:47:32.918 INFO running `"docker" "rm" "-f" "1577e0a3791bec60962dfcf031028870bbddeccc9174144c1ad6cdc6fdcbae74"`
Oct 12 19:47:33.290 INFO blam! 1577e0a3791bec60962dfcf031028870bbddeccc9174144c1ad6cdc6fdcbae74