Nov 03 20:55:51.544 INFO checking uma0317/Rust-BlockChain against master#2ad8c7b3502616aff142a4640cce911c6c2c5463 for pr-55655
Nov 03 20:55:51.545 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-1/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55655/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/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 +2ad8c7b3502616aff142a4640cce911c6c2c5463-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 03 20:55:52.031 INFO blam! af78f7c8217a805c5217d75b1f67fdc68f0487e0fba19ec624be432890ba06dd
Nov 03 20:55:52.043 INFO running `"docker" "start" "-a" "af78f7c8217a805c5217d75b1f67fdc68f0487e0fba19ec624be432890ba06dd"`
Nov 03 20:55:54.614 INFO kablam! usermod: no changes
Nov 03 20:55:54.795 INFO kablam!    Compiling num-traits v0.2.4
Nov 03 20:55:54.799 INFO kablam!    Compiling num-integer v0.1.38
Nov 03 20:55:54.851 INFO kablam!    Compiling rust-crypto v0.2.36
Nov 03 20:55:54.852 INFO kablam!     Checking rand v0.4.2
Nov 03 20:55:54.852 INFO kablam!     Checking time v0.1.40
Nov 03 20:55:59.939 INFO kablam!     Checking rand v0.3.22
Nov 03 20:56:02.797 INFO kablam!     Checking chrono v0.4.2
Nov 03 20:56:07.922 INFO kablam!     Checking blockchain v0.1.0 (/source)
Nov 03 20:56:08.087 INFO kablam! warning: unused import: `Block`
Nov 03 20:56:08.088 INFO kablam!  --> src/main.rs:3:30
Nov 03 20:56:08.091 INFO kablam!   |
Nov 03 20:56:08.091 INFO kablam! 3 | use blockchain::{Blockchain, Block, Transaction};
Nov 03 20:56:08.092 INFO kablam!   |                              ^^^^^
Nov 03 20:56:08.092 INFO kablam!   |
Nov 03 20:56:08.092 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 03 20:56:08.092 INFO kablam! 
Nov 03 20:56:08.210 INFO kablam! warning: method is never used: `is_chain_valid`
Nov 03 20:56:08.211 INFO kablam!    --> src/blockchain.rs:164:5
Nov 03 20:56:08.211 INFO kablam!     |
Nov 03 20:56:08.212 INFO kablam! 164 |     fn is_chain_valid(&self) -> bool {
Nov 03 20:56:08.219 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 03 20:56:08.219 INFO kablam!     |
Nov 03 20:56:08.220 INFO kablam!     = note: #[warn(dead_code)] on by default
Nov 03 20:56:08.220 INFO kablam! 
Nov 03 20:56:08.383 INFO kablam! warning: unused import: `Block`
Nov 03 20:56:08.384 INFO kablam!  --> src/main.rs:3:30
Nov 03 20:56:08.384 INFO kablam!   |
Nov 03 20:56:08.384 INFO kablam! 3 | use blockchain::{Blockchain, Block, Transaction};
Nov 03 20:56:08.384 INFO kablam!   |                              ^^^^^
Nov 03 20:56:08.385 INFO kablam!   |
Nov 03 20:56:08.385 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 03 20:56:08.385 INFO kablam! 
Nov 03 20:56:08.551 INFO kablam! warning: method is never used: `is_chain_valid`
Nov 03 20:56:08.551 INFO kablam!    --> src/blockchain.rs:164:5
Nov 03 20:56:08.551 INFO kablam!     |
Nov 03 20:56:08.551 INFO kablam! 164 |     fn is_chain_valid(&self) -> bool {
Nov 03 20:56:08.551 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 03 20:56:08.551 INFO kablam!     |
Nov 03 20:56:08.551 INFO kablam!     = note: #[warn(dead_code)] on by default
Nov 03 20:56:08.551 INFO kablam! 
Nov 03 20:56:08.587 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 13.94s
Nov 03 20:56:08.600 INFO kablam! su: No module specific data is present
Nov 03 20:56:09.587 INFO running `"docker" "rm" "-f" "af78f7c8217a805c5217d75b1f67fdc68f0487e0fba19ec624be432890ba06dd"`
Nov 03 20:56:09.951 INFO blam! af78f7c8217a805c5217d75b1f67fdc68f0487e0fba19ec624be432890ba06dd