[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/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/bloodstalker/truebit_client"`
[INFO] [stderr] Cloning into 'work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/bloodstalker/truebit_client'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bloodstalker/truebit_client" "work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/bloodstalker/truebit_client"`
[INFO] [stderr] Cloning into 'work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/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 master#003382e4150984cb476047b3925edf8d75df2d59
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bloodstalker/truebit_client on toolchain try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+47f4f94676fbdd494dd2c2dc9ac377a13fc78e00-alt" "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/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/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/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/bloodstalker/truebit_client/Cargo.toml
[INFO] crate bloodstalker/truebit_client already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+47f4f94676fbdd494dd2c2dc9ac377a13fc78e00-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bloodstalker/truebit_client against master#003382e4150984cb476047b3925edf8d75df2d59 for pr-59527
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59527/worker-3/master#003382e4150984cb476047b3925edf8d75df2d59:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/bloodstalker/truebit_client:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3d5114cf9ade1dd09f549b4a36bd7bec75bc758c87545da490b577be77f125f0
[INFO] running `"docker" "start" "-a" "3d5114cf9ade1dd09f549b4a36bd7bec75bc758c87545da490b577be77f125f0"`
[INFO] [stderr]     Checking parking_lot_core v0.2.6
[INFO] [stderr]     Checking arrayvec v0.3.24
[INFO] [stderr]     Checking tokio-uds v0.1.7
[INFO] [stderr]     Checking ethabi v4.2.0
[INFO] [stderr]     Checking jsonrpc-core v7.1.1
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking web3 v0.1.0
[INFO] [stderr]     Checking 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] 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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:29
[INFO] [stderr]    |
[INFO] [stderr] 27 |     .options(Options::with(|mut opt| opt.gas = Some(3_000_000.into())))
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:27:29
[INFO] [stderr]    |
[INFO] [stderr] 27 |     .options(Options::with(|mut opt| opt.gas = Some(3_000_000.into())))
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.79s
[INFO] running `"docker" "inspect" "3d5114cf9ade1dd09f549b4a36bd7bec75bc758c87545da490b577be77f125f0"`
[INFO] running `"docker" "rm" "-f" "3d5114cf9ade1dd09f549b4a36bd7bec75bc758c87545da490b577be77f125f0"`
[INFO] [stdout] 3d5114cf9ade1dd09f549b4a36bd7bec75bc758c87545da490b577be77f125f0