Nov 29 15:49:17.500 INFO checking uma0317/Rust-BlockChain against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 15:49:17.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 29 15:49:17.950 INFO [stdout] 3a1b77bb933ae6ca4765f099fbce80ba04682fedc2bb391a81c5bc8ea13dc540
Nov 29 15:49:17.952 INFO running `"docker" "start" "-a" "3a1b77bb933ae6ca4765f099fbce80ba04682fedc2bb391a81c5bc8ea13dc540"`
Nov 29 15:49:20.080 INFO [stderr] usermod: no changes
Nov 29 15:49:20.208 INFO [stderr]    Compiling num-traits v0.2.4
Nov 29 15:49:20.208 INFO [stderr]    Compiling gcc v0.3.54
Nov 29 15:49:20.208 INFO [stderr]    Compiling num-integer v0.1.38
Nov 29 15:49:20.208 INFO [stderr]     Checking time v0.1.40
Nov 29 15:49:20.208 INFO [stderr]     Checking rand v0.3.22
Nov 29 15:49:26.684 INFO [stderr]    Compiling rust-crypto v0.2.36
Nov 29 15:49:29.177 INFO [stderr]     Checking chrono v0.4.2
Nov 29 15:49:35.143 INFO [stderr]     Checking blockchain v0.1.0 (/source)
Nov 29 15:49:35.307 INFO [stderr] warning: unused import: `Block`
Nov 29 15:49:35.307 INFO [stderr]  --> src/main.rs:3:30
Nov 29 15:49:35.307 INFO [stderr]   |
Nov 29 15:49:35.307 INFO [stderr] 3 | use blockchain::{Blockchain, Block, Transaction};
Nov 29 15:49:35.307 INFO [stderr]   |                              ^^^^^
Nov 29 15:49:35.307 INFO [stderr]   |
Nov 29 15:49:35.307 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 15:49:35.307 INFO [stderr] 
Nov 29 15:49:35.465 INFO [stderr] warning: unused import: `Block`
Nov 29 15:49:35.465 INFO [stderr]  --> src/main.rs:3:30
Nov 29 15:49:35.465 INFO [stderr]   |
Nov 29 15:49:35.465 INFO [stderr] 3 | use blockchain::{Blockchain, Block, Transaction};
Nov 29 15:49:35.465 INFO [stderr]   |                              ^^^^^
Nov 29 15:49:35.465 INFO [stderr]   |
Nov 29 15:49:35.465 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 15:49:35.465 INFO [stderr] 
Nov 29 15:49:35.502 INFO [stderr] warning: method is never used: `is_chain_valid`
Nov 29 15:49:35.502 INFO [stderr]    --> src/blockchain.rs:164:5
Nov 29 15:49:35.502 INFO [stderr]     |
Nov 29 15:49:35.502 INFO [stderr] 164 |     fn is_chain_valid(&self) -> bool {
Nov 29 15:49:35.502 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 15:49:35.502 INFO [stderr]     |
Nov 29 15:49:35.502 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 29 15:49:35.502 INFO [stderr] 
Nov 29 15:49:35.604 INFO [stderr] warning: method is never used: `is_chain_valid`
Nov 29 15:49:35.604 INFO [stderr]    --> src/blockchain.rs:164:5
Nov 29 15:49:35.604 INFO [stderr]     |
Nov 29 15:49:35.604 INFO [stderr] 164 |     fn is_chain_valid(&self) -> bool {
Nov 29 15:49:35.604 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 15:49:35.604 INFO [stderr]     |
Nov 29 15:49:35.604 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 29 15:49:35.604 INFO [stderr] 
Nov 29 15:49:35.642 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.53s
Nov 29 15:49:35.649 INFO [stderr] su: No module specific data is present
Nov 29 15:49:36.332 INFO running `"docker" "inspect" "3a1b77bb933ae6ca4765f099fbce80ba04682fedc2bb391a81c5bc8ea13dc540"`
Nov 29 15:49:36.610 INFO running `"docker" "rm" "-f" "3a1b77bb933ae6ca4765f099fbce80ba04682fedc2bb391a81c5bc8ea13dc540"`
Nov 29 15:49:36.860 INFO [stdout] 3a1b77bb933ae6ca4765f099fbce80ba04682fedc2bb391a81c5bc8ea13dc540