Dec 12 22:50:34.172 INFO testing uma0317/Rust-BlockChain against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 22:50:34.172 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 12 22:50:34.903 INFO [stdout] 8dd37f064278c33d51e47deca434e5bcd7c4a5132ef4db51c9c7b8abce81f3d5
Dec 12 22:50:34.905 INFO running `"docker" "start" "-a" "8dd37f064278c33d51e47deca434e5bcd7c4a5132ef4db51c9c7b8abce81f3d5"`
Dec 12 22:50:36.255 INFO [stderr] usermod: no changes
Dec 12 22:50:36.364 INFO [stderr]    Compiling rust-crypto v0.2.36
Dec 12 22:50:45.236 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 12 22:50:45.475 INFO [stderr] warning: unused import: `Block`
Dec 12 22:50:45.475 INFO [stderr]  --> src/main.rs:3:30
Dec 12 22:50:45.475 INFO [stderr]   |
Dec 12 22:50:45.475 INFO [stderr] 3 | use blockchain::{Blockchain, Block, Transaction};
Dec 12 22:50:45.475 INFO [stderr]   |                              ^^^^^
Dec 12 22:50:45.475 INFO [stderr]   |
Dec 12 22:50:45.475 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 22:50:45.475 INFO [stderr] 
Dec 12 22:50:45.607 INFO [stderr] warning: method is never used: `is_chain_valid`
Dec 12 22:50:45.607 INFO [stderr]    --> src/blockchain.rs:164:5
Dec 12 22:50:45.607 INFO [stderr]     |
Dec 12 22:50:45.607 INFO [stderr] 164 |     fn is_chain_valid(&self) -> bool {
Dec 12 22:50:45.607 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:50:45.607 INFO [stderr]     |
Dec 12 22:50:45.607 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 22:50:45.607 INFO [stderr] 
Dec 12 22:50:46.683 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.38s
Dec 12 22:50:46.683 INFO [stderr] su: No module specific data is present
Dec 12 22:50:47.251 INFO running `"docker" "inspect" "8dd37f064278c33d51e47deca434e5bcd7c4a5132ef4db51c9c7b8abce81f3d5"`
Dec 12 22:50:47.465 INFO running `"docker" "rm" "-f" "8dd37f064278c33d51e47deca434e5bcd7c4a5132ef4db51c9c7b8abce81f3d5"`
Dec 12 22:50:47.823 INFO [stdout] 8dd37f064278c33d51e47deca434e5bcd7c4a5132ef4db51c9c7b8abce81f3d5
Dec 12 22:50:47.829 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 12 22:50:48.279 INFO [stdout] c15e94193763b1c911a23f7c6c9cc19e59134389631cd97d18d08448ce796393
Dec 12 22:50:48.281 INFO running `"docker" "start" "-a" "c15e94193763b1c911a23f7c6c9cc19e59134389631cd97d18d08448ce796393"`
Dec 12 22:50:49.512 INFO [stderr] usermod: no changes
Dec 12 22:50:49.676 INFO [stderr]    Compiling blockchain v0.1.0 (/source)
Dec 12 22:50:49.939 INFO [stderr] warning: unused import: `Block`
Dec 12 22:50:49.939 INFO [stderr]  --> src/main.rs:3:30
Dec 12 22:50:49.939 INFO [stderr]   |
Dec 12 22:50:49.939 INFO [stderr] 3 | use blockchain::{Blockchain, Block, Transaction};
Dec 12 22:50:49.939 INFO [stderr]   |                              ^^^^^
Dec 12 22:50:49.939 INFO [stderr]   |
Dec 12 22:50:49.939 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 22:50:49.939 INFO [stderr] 
Dec 12 22:50:50.059 INFO [stderr] warning: method is never used: `is_chain_valid`
Dec 12 22:50:50.059 INFO [stderr]    --> src/blockchain.rs:164:5
Dec 12 22:50:50.060 INFO [stderr]     |
Dec 12 22:50:50.060 INFO [stderr] 164 |     fn is_chain_valid(&self) -> bool {
Dec 12 22:50:50.060 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:50:50.060 INFO [stderr]     |
Dec 12 22:50:50.060 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 22:50:50.060 INFO [stderr] 
Dec 12 22:50:50.395 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 12 22:50:50.395 INFO [stderr] su: No module specific data is present
Dec 12 22:50:51.111 INFO running `"docker" "inspect" "c15e94193763b1c911a23f7c6c9cc19e59134389631cd97d18d08448ce796393"`
Dec 12 22:50:51.411 INFO running `"docker" "rm" "-f" "c15e94193763b1c911a23f7c6c9cc19e59134389631cd97d18d08448ce796393"`
Dec 12 22:50:51.715 INFO [stdout] c15e94193763b1c911a23f7c6c9cc19e59134389631cd97d18d08448ce796393
Dec 12 22:50:51.721 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-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 12 22:50:52.207 INFO [stdout] 1e3f5af71676199097b5c1ae9ed1ebad29fd24b55d429fbdea60b21159b39cc2
Dec 12 22:50:52.209 INFO running `"docker" "start" "-a" "1e3f5af71676199097b5c1ae9ed1ebad29fd24b55d429fbdea60b21159b39cc2"`
Dec 12 22:50:53.399 INFO [stderr] usermod: no changes
Dec 12 22:50:53.577 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
Dec 12 22:50:53.577 INFO [stderr]      Running /target/debug/deps/blockchain-38253ae75e8eb63c
Dec 12 22:50:53.578 INFO [stdout] 
Dec 12 22:50:53.578 INFO [stdout] running 0 tests
Dec 12 22:50:53.578 INFO [stdout] 
Dec 12 22:50:53.578 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 22:50:53.578 INFO [stdout] 
Dec 12 22:50:53.580 INFO [stderr] su: No module specific data is present
Dec 12 22:50:54.947 INFO running `"docker" "inspect" "1e3f5af71676199097b5c1ae9ed1ebad29fd24b55d429fbdea60b21159b39cc2"`
Dec 12 22:50:55.259 INFO running `"docker" "rm" "-f" "1e3f5af71676199097b5c1ae9ed1ebad29fd24b55d429fbdea60b21159b39cc2"`
Dec 12 22:50:55.563 INFO [stdout] 1e3f5af71676199097b5c1ae9ed1ebad29fd24b55d429fbdea60b21159b39cc2