[INFO] updating cached repository Banyango/rust-blockchain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Banyango/rust-blockchain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Banyango/rust-blockchain" "work/ex/beta-1.37-6/sources/1.36.0/gh/Banyango/rust-blockchain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Banyango/rust-blockchain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Banyango/rust-blockchain" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Banyango/rust-blockchain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Banyango/rust-blockchain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2b2b0bc7b2b8bdf9c699e1c6d43edfbba2f9c7d8
[INFO] sha for GitHub repo Banyango/rust-blockchain: 2b2b0bc7b2b8bdf9c699e1c6d43edfbba2f9c7d8
[INFO] validating manifest of Banyango/rust-blockchain on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Banyango/rust-blockchain on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Banyango/rust-blockchain
[INFO] finished frobbing Banyango/rust-blockchain
[INFO] frobbed toml for Banyango/rust-blockchain written to work/ex/beta-1.37-6/sources/1.36.0/gh/Banyango/rust-blockchain/Cargo.toml
[INFO] started frobbing Banyango/rust-blockchain
[INFO] finished frobbing Banyango/rust-blockchain
[INFO] frobbed toml for Banyango/rust-blockchain written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Banyango/rust-blockchain/Cargo.toml
[INFO] crate Banyango/rust-blockchain already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Banyango/rust-blockchain against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Banyango/rust-blockchain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8916830ca19e5403a2af1f95e41db2f6a4b4c0f6aef6f967e3d502df9bf5adea
[INFO] running `"docker" "start" "-a" "8916830ca19e5403a2af1f95e41db2f6a4b4c0f6aef6f967e3d502df9bf5adea"`
[INFO] [stderr]    Compiling pad v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.36
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling hyper v0.10.15
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling iron v0.6.0
[INFO] [stderr]    Compiling persistent v0.4.0
[INFO] [stderr]    Compiling router v0.6.0
[INFO] [stderr]    Compiling bodyparser v0.8.0
[INFO] [stderr]    Compiling rust-blockchain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/block.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::{Serialize, Deserialize};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.14s
[INFO] running `"docker" "inspect" "8916830ca19e5403a2af1f95e41db2f6a4b4c0f6aef6f967e3d502df9bf5adea"`
[INFO] running `"docker" "rm" "-f" "8916830ca19e5403a2af1f95e41db2f6a4b4c0f6aef6f967e3d502df9bf5adea"`
[INFO] [stdout] 8916830ca19e5403a2af1f95e41db2f6a4b4c0f6aef6f967e3d502df9bf5adea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Banyango/rust-blockchain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9fb47175759617beb756d46f345cff4d2f42fffc673ad6f12fc111423d9e5847
[INFO] running `"docker" "start" "-a" "9fb47175759617beb756d46f345cff4d2f42fffc673ad6f12fc111423d9e5847"`
[INFO] [stderr]    Compiling rust-blockchain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stderr]  --> src/block.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::{Serialize, Deserialize};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `"docker" "inspect" "9fb47175759617beb756d46f345cff4d2f42fffc673ad6f12fc111423d9e5847"`
[INFO] running `"docker" "rm" "-f" "9fb47175759617beb756d46f345cff4d2f42fffc673ad6f12fc111423d9e5847"`
[INFO] [stdout] 9fb47175759617beb756d46f345cff4d2f42fffc673ad6f12fc111423d9e5847
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Banyango/rust-blockchain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 82a5ffbf2db978bb89396e37311ae20082eca9aa0f472f34c4a2a79015958f51
[INFO] running `"docker" "start" "-a" "82a5ffbf2db978bb89396e37311ae20082eca9aa0f472f34c4a2a79015958f51"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_blockchain-9b46009878daae00
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test miner::tests::test_is_block_valid_index_wrong ... ok
[INFO] [stdout] test miner::tests::test_is_block_valid_new_hash_is_none ... ok
[INFO] [stdout] test miner::tests::test_is_block_valid_prev_hash_not_equal_to_hash ... ok
[INFO] [stdout] test miner::tests::test_is_hash_valid_invalid_hash ... ok
[INFO] [stdout] test miner::tests::test_is_hash_valid_valid_hash ... ok
[INFO] [stdout] test miner::tests::test_is_hash_valid ... ok
[INFO] [stdout] test miner::tests::test_prefix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "82a5ffbf2db978bb89396e37311ae20082eca9aa0f472f34c4a2a79015958f51"`
[INFO] running `"docker" "rm" "-f" "82a5ffbf2db978bb89396e37311ae20082eca9aa0f472f34c4a2a79015958f51"`
[INFO] [stdout] 82a5ffbf2db978bb89396e37311ae20082eca9aa0f472f34c4a2a79015958f51