[INFO] updating cached repository bloodstalker/truebit_client
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bloodstalker/truebit_client
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bloodstalker/truebit_client" "work/ex/beta-1.38-1/sources/1.37.0/gh/bloodstalker/truebit_client"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bloodstalker/truebit_client'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bloodstalker/truebit_client" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bloodstalker/truebit_client"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bloodstalker/truebit_client'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f08ee206ff00d379bf6e1d25394c792f706c91ea
[INFO] sha for GitHub repo bloodstalker/truebit_client: f08ee206ff00d379bf6e1d25394c792f706c91ea
[INFO] validating manifest of bloodstalker/truebit_client 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 bloodstalker/truebit_client 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 bloodstalker/truebit_client
[INFO] finished frobbing bloodstalker/truebit_client
[INFO] frobbed toml for bloodstalker/truebit_client written to work/ex/beta-1.38-1/sources/1.37.0/gh/bloodstalker/truebit_client/Cargo.toml
[INFO] started frobbing bloodstalker/truebit_client
[INFO] finished frobbing bloodstalker/truebit_client
[INFO] frobbed toml for bloodstalker/truebit_client written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bloodstalker/truebit_client/Cargo.toml
[INFO] crate bloodstalker/truebit_client 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 bloodstalker/truebit_client 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bloodstalker/truebit_client:/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] 6a609d5c6ad11de565415c7c51de473bd3dc54cf859ec1ff997c33aeb04e7a97
[INFO] running `"docker" "start" "-a" "6a609d5c6ad11de565415c7c51de473bd3dc54cf859ec1ff997c33aeb04e7a97"`
[INFO] [stderr]    Compiling tiny-keccak v1.3.1
[INFO] [stderr]    Compiling serde_json v1.0.6
[INFO] [stderr]    Compiling parking_lot_core v0.2.6
[INFO] [stderr]    Compiling mio-uds v0.6.4
[INFO] [stderr]    Compiling tokio-uds v0.1.7
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling jsonrpc-core v7.1.1
[INFO] [stderr]    Compiling ethabi v4.2.0
[INFO] [stderr]    Compiling web3 v0.1.0
[INFO] [stderr]    Compiling truebit_client v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Address`, `U256`
[INFO] [stderr]  --> src/main.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use web3::types::{Address, U256};
[INFO] [stderr]   |                   ^^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.54s
[INFO] running `"docker" "inspect" "6a609d5c6ad11de565415c7c51de473bd3dc54cf859ec1ff997c33aeb04e7a97"`
[INFO] running `"docker" "rm" "-f" "6a609d5c6ad11de565415c7c51de473bd3dc54cf859ec1ff997c33aeb04e7a97"`
[INFO] [stdout] 6a609d5c6ad11de565415c7c51de473bd3dc54cf859ec1ff997c33aeb04e7a97
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bloodstalker/truebit_client:/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] 0ae16ab1a4bbd9c5fee4330e754e64538ee07bd71ba27c77e35afdfaceb5542c
[INFO] running `"docker" "start" "-a" "0ae16ab1a4bbd9c5fee4330e754e64538ee07bd71ba27c77e35afdfaceb5542c"`
[INFO] [stderr]    Compiling truebit_client v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Address`, `U256`
[INFO] [stderr]  --> src/main.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use web3::types::{Address, U256};
[INFO] [stderr]   |                   ^^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `"docker" "inspect" "0ae16ab1a4bbd9c5fee4330e754e64538ee07bd71ba27c77e35afdfaceb5542c"`
[INFO] running `"docker" "rm" "-f" "0ae16ab1a4bbd9c5fee4330e754e64538ee07bd71ba27c77e35afdfaceb5542c"`
[INFO] [stdout] 0ae16ab1a4bbd9c5fee4330e754e64538ee07bd71ba27c77e35afdfaceb5542c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/bloodstalker/truebit_client:/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] 402b9cdbab3575acda1b62cab6f8103458a27ecf4744e255ed959bcd82f5aee4
[INFO] running `"docker" "start" "-a" "402b9cdbab3575acda1b62cab6f8103458a27ecf4744e255ed959bcd82f5aee4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/truebit_client-db2935d1760e749e
[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" "402b9cdbab3575acda1b62cab6f8103458a27ecf4744e255ed959bcd82f5aee4"`
[INFO] running `"docker" "rm" "-f" "402b9cdbab3575acda1b62cab6f8103458a27ecf4744e255ed959bcd82f5aee4"`
[INFO] [stdout] 402b9cdbab3575acda1b62cab6f8103458a27ecf4744e255ed959bcd82f5aee4