Nov 28 08:05:26.015 INFO checking carlosgj94/simple_blockchain against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 08:05:26.015 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 08:05:26.452 INFO [stdout] d16617faa9cb6258e48825324417c5bb0768425c476433e0a847d4ad2bf2d803
Nov 28 08:05:26.460 INFO running `"docker" "start" "-a" "d16617faa9cb6258e48825324417c5bb0768425c476433e0a847d4ad2bf2d803"`
Nov 28 08:05:27.644 INFO [stderr] usermod: no changes
Nov 28 08:05:27.740 INFO [stderr]     Checking simple_blockchain v0.1.0 (/source)
Nov 28 08:05:28.565 INFO [stderr] warning: value assigned to `hash` is never read
Nov 28 08:05:28.565 INFO [stderr]   --> src/main.rs:73:13
Nov 28 08:05:28.565 INFO [stderr]    |
Nov 28 08:05:28.566 INFO [stderr] 73 |     let mut hash = String::new();
Nov 28 08:05:28.566 INFO [stderr]    |             ^^^^
Nov 28 08:05:28.566 INFO [stderr]    |
Nov 28 08:05:28.566 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 08:05:28.567 INFO [stderr] 
Nov 28 08:05:28.576 INFO [stderr] warning: function is never used: `is_valid_new_block`
Nov 28 08:05:28.576 INFO [stderr]    --> src/main.rs:104:1
Nov 28 08:05:28.576 INFO [stderr]     |
Nov 28 08:05:28.577 INFO [stderr] 104 | fn is_valid_new_block(n_block: Block, p_block: Block) -> bool {
Nov 28 08:05:28.577 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:05:28.577 INFO [stderr]     |
Nov 28 08:05:28.577 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 28 08:05:28.578 INFO [stderr] 
Nov 28 08:05:28.769 INFO [stderr] warning: value assigned to `hash` is never read
Nov 28 08:05:28.769 INFO [stderr]   --> src/main.rs:73:13
Nov 28 08:05:28.769 INFO [stderr]    |
Nov 28 08:05:28.770 INFO [stderr] 73 |     let mut hash = String::new();
Nov 28 08:05:28.770 INFO [stderr]    |             ^^^^
Nov 28 08:05:28.770 INFO [stderr]    |
Nov 28 08:05:28.771 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 08:05:28.771 INFO [stderr] 
Nov 28 08:05:28.785 INFO [stderr] warning: function is never used: `is_valid_new_block`
Nov 28 08:05:28.785 INFO [stderr]    --> src/main.rs:104:1
Nov 28 08:05:28.785 INFO [stderr]     |
Nov 28 08:05:28.785 INFO [stderr] 104 | fn is_valid_new_block(n_block: Block, p_block: Block) -> bool {
Nov 28 08:05:28.786 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:05:28.786 INFO [stderr]     |
Nov 28 08:05:28.786 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 28 08:05:28.786 INFO [stderr] 
Nov 28 08:05:28.796 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Nov 28 08:05:28.796 INFO [stderr] su: No module specific data is present
Nov 28 08:05:29.811 INFO running `"docker" "inspect" "d16617faa9cb6258e48825324417c5bb0768425c476433e0a847d4ad2bf2d803"`
Nov 28 08:05:30.110 INFO running `"docker" "rm" "-f" "d16617faa9cb6258e48825324417c5bb0768425c476433e0a847d4ad2bf2d803"`
Nov 28 08:05:30.433 INFO [stdout] d16617faa9cb6258e48825324417c5bb0768425c476433e0a847d4ad2bf2d803