Dec 04 21:15:27.402 INFO checking carlosgj94/simple_blockchain against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 21:15:27.402 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 21:15:27.920 INFO [stdout] fbb336b6141acda706c055849eba8dec123a991c52651c632698e8ffa285ffdc
Dec 04 21:15:27.922 INFO running `"docker" "start" "-a" "fbb336b6141acda706c055849eba8dec123a991c52651c632698e8ffa285ffdc"`
Dec 04 21:15:29.841 INFO [stderr] usermod: no changes
Dec 04 21:15:29.975 INFO [stderr]    Compiling rust-crypto v0.2.36
Dec 04 21:15:36.256 INFO [stderr]     Checking simple_blockchain v0.1.0 (/source)
Dec 04 21:15:36.915 INFO [stderr] warning: value assigned to `hash` is never read
Dec 04 21:15:36.915 INFO [stderr]   --> src/main.rs:73:13
Dec 04 21:15:36.915 INFO [stderr]    |
Dec 04 21:15:36.915 INFO [stderr] 73 |     let mut hash = String::new();
Dec 04 21:15:36.915 INFO [stderr]    |             ^^^^
Dec 04 21:15:36.915 INFO [stderr]    |
Dec 04 21:15:36.915 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 04 21:15:36.915 INFO [stderr] 
Dec 04 21:15:36.939 INFO [stderr] warning: function is never used: `is_valid_new_block`
Dec 04 21:15:36.939 INFO [stderr]    --> src/main.rs:104:1
Dec 04 21:15:36.939 INFO [stderr]     |
Dec 04 21:15:36.939 INFO [stderr] 104 | fn is_valid_new_block(n_block: Block, p_block: Block) -> bool {
Dec 04 21:15:36.939 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:15:36.939 INFO [stderr]     |
Dec 04 21:15:36.939 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 21:15:36.939 INFO [stderr] 
Dec 04 21:15:37.111 INFO [stderr] warning: value assigned to `hash` is never read
Dec 04 21:15:37.111 INFO [stderr]   --> src/main.rs:73:13
Dec 04 21:15:37.111 INFO [stderr]    |
Dec 04 21:15:37.111 INFO [stderr] 73 |     let mut hash = String::new();
Dec 04 21:15:37.111 INFO [stderr]    |             ^^^^
Dec 04 21:15:37.111 INFO [stderr]    |
Dec 04 21:15:37.111 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 04 21:15:37.111 INFO [stderr] 
Dec 04 21:15:37.127 INFO [stderr] warning: function is never used: `is_valid_new_block`
Dec 04 21:15:37.127 INFO [stderr]    --> src/main.rs:104:1
Dec 04 21:15:37.127 INFO [stderr]     |
Dec 04 21:15:37.127 INFO [stderr] 104 | fn is_valid_new_block(n_block: Block, p_block: Block) -> bool {
Dec 04 21:15:37.127 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:15:37.127 INFO [stderr]     |
Dec 04 21:15:37.127 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 21:15:37.127 INFO [stderr] 
Dec 04 21:15:37.153 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.26s
Dec 04 21:15:37.159 INFO [stderr] su: No module specific data is present
Dec 04 21:15:37.649 INFO running `"docker" "inspect" "fbb336b6141acda706c055849eba8dec123a991c52651c632698e8ffa285ffdc"`
Dec 04 21:15:37.820 INFO running `"docker" "rm" "-f" "fbb336b6141acda706c055849eba8dec123a991c52651c632698e8ffa285ffdc"`
Dec 04 21:15:37.966 INFO [stdout] fbb336b6141acda706c055849eba8dec123a991c52651c632698e8ffa285ffdc