[INFO] updating cached repository Nazariglez/mini-blockchain-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Nazariglez/mini-blockchain-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Nazariglez/mini-blockchain-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Nazariglez/mini-blockchain-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Nazariglez/mini-blockchain-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Nazariglez/mini-blockchain-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nazariglez/mini-blockchain-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nazariglez/mini-blockchain-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 926de679a1e3473717aa6e741462894b9eee1de4
[INFO] sha for GitHub repo Nazariglez/mini-blockchain-rs: 926de679a1e3473717aa6e741462894b9eee1de4
[INFO] validating manifest of Nazariglez/mini-blockchain-rs 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 Nazariglez/mini-blockchain-rs 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 Nazariglez/mini-blockchain-rs
[INFO] finished frobbing Nazariglez/mini-blockchain-rs
[INFO] frobbed toml for Nazariglez/mini-blockchain-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Nazariglez/mini-blockchain-rs/Cargo.toml
[INFO] started frobbing Nazariglez/mini-blockchain-rs
[INFO] finished frobbing Nazariglez/mini-blockchain-rs
[INFO] frobbed toml for Nazariglez/mini-blockchain-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nazariglez/mini-blockchain-rs/Cargo.toml
[INFO] crate Nazariglez/mini-blockchain-rs 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 Nazariglez/mini-blockchain-rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nazariglez/mini-blockchain-rs:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] fa267703e0e248a35df9f50cbeea5e773a2c09c95926fa2806ba18c53db91adc
[INFO] running `"docker" "start" "-a" "fa267703e0e248a35df9f50cbeea5e773a2c09c95926fa2806ba18c53db91adc"`
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:32
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.32s
[INFO] running `"docker" "inspect" "fa267703e0e248a35df9f50cbeea5e773a2c09c95926fa2806ba18c53db91adc"`
[INFO] running `"docker" "rm" "-f" "fa267703e0e248a35df9f50cbeea5e773a2c09c95926fa2806ba18c53db91adc"`
[INFO] [stdout] fa267703e0e248a35df9f50cbeea5e773a2c09c95926fa2806ba18c53db91adc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nazariglez/mini-blockchain-rs:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] c52c062b3a2b9beda8f9337dc29017a83e33c0b143c19b711bba667e53bf3a1a
[INFO] running `"docker" "start" "-a" "c52c062b3a2b9beda8f9337dc29017a83e33c0b143c19b711bba667e53bf3a1a"`
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:32
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "c52c062b3a2b9beda8f9337dc29017a83e33c0b143c19b711bba667e53bf3a1a"`
[INFO] running `"docker" "rm" "-f" "c52c062b3a2b9beda8f9337dc29017a83e33c0b143c19b711bba667e53bf3a1a"`
[INFO] [stdout] c52c062b3a2b9beda8f9337dc29017a83e33c0b143c19b711bba667e53bf3a1a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Nazariglez/mini-blockchain-rs:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d0ce535b1bfe676723db73a37397990440501639d9f28e09235dc5688eeae180
[INFO] running `"docker" "start" "-a" "d0ce535b1bfe676723db73a37397990440501639d9f28e09235dc5688eeae180"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/blockchain-57baf202fa76c716
[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" "d0ce535b1bfe676723db73a37397990440501639d9f28e09235dc5688eeae180"`
[INFO] running `"docker" "rm" "-f" "d0ce535b1bfe676723db73a37397990440501639d9f28e09235dc5688eeae180"`
[INFO] [stdout] d0ce535b1bfe676723db73a37397990440501639d9f28e09235dc5688eeae180