[INFO] updating cached repository tamanishi/blockchain_tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tamanishi/blockchain_tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tamanishi/blockchain_tutorial" "work/ex/beta-1.38-1/sources/1.37.0/gh/tamanishi/blockchain_tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tamanishi/blockchain_tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tamanishi/blockchain_tutorial" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tamanishi/blockchain_tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tamanishi/blockchain_tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aee1f6a09050e274fc509873df28358f64317298
[INFO] sha for GitHub repo tamanishi/blockchain_tutorial: aee1f6a09050e274fc509873df28358f64317298
[INFO] validating manifest of tamanishi/blockchain_tutorial on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tamanishi/blockchain_tutorial on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tamanishi/blockchain_tutorial
[INFO] finished frobbing tamanishi/blockchain_tutorial
[INFO] frobbed toml for tamanishi/blockchain_tutorial written to work/ex/beta-1.38-1/sources/1.37.0/gh/tamanishi/blockchain_tutorial/Cargo.toml
[INFO] started frobbing tamanishi/blockchain_tutorial
[INFO] finished frobbing tamanishi/blockchain_tutorial
[INFO] frobbed toml for tamanishi/blockchain_tutorial written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tamanishi/blockchain_tutorial/Cargo.toml
[INFO] crate tamanishi/blockchain_tutorial already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tamanishi/blockchain_tutorial against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tamanishi/blockchain_tutorial:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] fd5899bcabd89dfb0aedbc237735f9635b8b0acf184f06cbcb47b17adbe2dc4a
[INFO] running `"docker" "start" "-a" "fd5899bcabd89dfb0aedbc237735f9635b8b0acf184f06cbcb47b17adbe2dc4a"`
[INFO] [stderr]    Compiling serde v1.0.30
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling serde_derive v1.0.30
[INFO] [stderr]    Compiling serde_json v1.0.11
[INFO] [stderr]    Compiling blockchain_tutorial v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.81s
[INFO] running `"docker" "inspect" "fd5899bcabd89dfb0aedbc237735f9635b8b0acf184f06cbcb47b17adbe2dc4a"`
[INFO] running `"docker" "rm" "-f" "fd5899bcabd89dfb0aedbc237735f9635b8b0acf184f06cbcb47b17adbe2dc4a"`
[INFO] [stdout] fd5899bcabd89dfb0aedbc237735f9635b8b0acf184f06cbcb47b17adbe2dc4a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tamanishi/blockchain_tutorial:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ebaa8be8b2fd5118a3859bfe357011a3c4097956c85900d46525f9e768713ded
[INFO] running `"docker" "start" "-a" "ebaa8be8b2fd5118a3859bfe357011a3c4097956c85900d46525f9e768713ded"`
[INFO] [stderr]    Compiling blockchain_tutorial v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "ebaa8be8b2fd5118a3859bfe357011a3c4097956c85900d46525f9e768713ded"`
[INFO] running `"docker" "rm" "-f" "ebaa8be8b2fd5118a3859bfe357011a3c4097956c85900d46525f9e768713ded"`
[INFO] [stdout] ebaa8be8b2fd5118a3859bfe357011a3c4097956c85900d46525f9e768713ded
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tamanishi/blockchain_tutorial:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] bdb0444d882a2be933c49b66fc68829e3623c177f2418f35f5ddcc63b8b58210
[INFO] running `"docker" "start" "-a" "bdb0444d882a2be933c49b66fc68829e3623c177f2418f35f5ddcc63b8b58210"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/blockchain_tutorial-6f9e54f34fb7de02
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bdb0444d882a2be933c49b66fc68829e3623c177f2418f35f5ddcc63b8b58210"`
[INFO] running `"docker" "rm" "-f" "bdb0444d882a2be933c49b66fc68829e3623c177f2418f35f5ddcc63b8b58210"`
[INFO] [stdout] bdb0444d882a2be933c49b66fc68829e3623c177f2418f35f5ddcc63b8b58210