[INFO] cloning repository https://github.com/taztingo/rusty-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taztingo/rusty-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaztingo%2Frusty-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaztingo%2Frusty-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de90640bf3c7fab9cc43eea8d63aed1ae71edcaf
[INFO] testing taztingo/rusty-blockchain against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaztingo%2Frusty-blockchain" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taztingo/rusty-blockchain on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/taztingo/rusty-blockchain
[INFO] finished tweaking git repo https://github.com/taztingo/rusty-blockchain
[INFO] tweaked toml for git repo https://github.com/taztingo/rusty-blockchain written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/taztingo/rusty-blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded openssl v0.10.31
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b32b873f84dfb3d529fbc7f9a0e9cd47143414880803bb8960aab2e05dcdd88
[INFO] running `Command { std: "docker" "start" "-a" "2b32b873f84dfb3d529fbc7f9a0e9cd47143414880803bb8960aab2e05dcdd88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b32b873f84dfb3d529fbc7f9a0e9cd47143414880803bb8960aab2e05dcdd88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b32b873f84dfb3d529fbc7f9a0e9cd47143414880803bb8960aab2e05dcdd88", kill_on_drop: false }`
[INFO] [stdout] 2b32b873f84dfb3d529fbc7f9a0e9cd47143414880803bb8960aab2e05dcdd88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0b221baf869f71ab017670793ae3472720c6d6f4608e4dd6b562eb2453a734
[INFO] running `Command { std: "docker" "start" "-a" "2e0b221baf869f71ab017670793ae3472720c6d6f4608e4dd6b562eb2453a734", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.31
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.59
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling rusty-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `latest`
[INFO] [stdout]   --> src/blockchain.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn latest(&self) -> Option<&Block> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.86s
[INFO] running `Command { std: "docker" "inspect" "2e0b221baf869f71ab017670793ae3472720c6d6f4608e4dd6b562eb2453a734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0b221baf869f71ab017670793ae3472720c6d6f4608e4dd6b562eb2453a734", kill_on_drop: false }`
[INFO] [stdout] 2e0b221baf869f71ab017670793ae3472720c6d6f4608e4dd6b562eb2453a734
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e25f383d4a8cf2515f3b517b287991ed92a28148ec35fb921daaa5140d119d3
[INFO] running `Command { std: "docker" "start" "-a" "2e25f383d4a8cf2515f3b517b287991ed92a28148ec35fb921daaa5140d119d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `latest`
[INFO] [stdout]   --> src/blockchain.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn latest(&self) -> Option<&Block> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "2e25f383d4a8cf2515f3b517b287991ed92a28148ec35fb921daaa5140d119d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e25f383d4a8cf2515f3b517b287991ed92a28148ec35fb921daaa5140d119d3", kill_on_drop: false }`
[INFO] [stdout] 2e25f383d4a8cf2515f3b517b287991ed92a28148ec35fb921daaa5140d119d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] befecd1c2ad201352cc0bd5c9efd2509224c88e00d00c4c8779618c00c9b5789
[INFO] running `Command { std: "docker" "start" "-a" "befecd1c2ad201352cc0bd5c9efd2509224c88e00d00c4c8779618c00c9b5789", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `latest`
[INFO] [stderr]   --> src/blockchain.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn latest(&self) -> Option<&Block> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty-blockchain` (bin "rusty-blockchain" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_blockchain-1e2b8e1ab66ca749)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_blockchain-f6ca70a7ee3b91c4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty-blockchain
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "befecd1c2ad201352cc0bd5c9efd2509224c88e00d00c4c8779618c00c9b5789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "befecd1c2ad201352cc0bd5c9efd2509224c88e00d00c4c8779618c00c9b5789", kill_on_drop: false }`
[INFO] [stdout] befecd1c2ad201352cc0bd5c9efd2509224c88e00d00c4c8779618c00c9b5789