[INFO] cloning repository https://github.com/bloodstalker/truebit_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bloodstalker/truebit_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbloodstalker%2Ftruebit_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbloodstalker%2Ftruebit_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f08ee206ff00d379bf6e1d25394c792f706c91ea
[INFO] checking bloodstalker/truebit_client against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbloodstalker%2Ftruebit_client" "/workspace/builds/worker-84/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-84/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bloodstalker/truebit_client on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bloodstalker/truebit_client
[INFO] finished tweaking git repo https://github.com/bloodstalker/truebit_client
[INFO] tweaked toml for git repo https://github.com/bloodstalker/truebit_client written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate git repo https://github.com/bloodstalker/truebit_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a62b0afa335c6b203a590d1961f91578db136069e8b4e80397e299db11b53a5
[INFO] running `Command { std: "docker" "start" "-a" "7a62b0afa335c6b203a590d1961f91578db136069e8b4e80397e299db11b53a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a62b0afa335c6b203a590d1961f91578db136069e8b4e80397e299db11b53a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a62b0afa335c6b203a590d1961f91578db136069e8b4e80397e299db11b53a5", kill_on_drop: false }`
[INFO] [stdout] 7a62b0afa335c6b203a590d1961f91578db136069e8b4e80397e299db11b53a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=forbid" "-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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbb2fd0254c36ea3ebebd2863e92fca1bdeed678a89b03c70b04d663fa778f7a
[INFO] running `Command { std: "docker" "start" "-a" "dbb2fd0254c36ea3ebebd2863e92fca1bdeed678a89b03c70b04d663fa778f7a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking serde v1.0.20
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking tiny-keccak v1.3.1
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]     Checking rustc-hex v1.0.0
[INFO] [stderr]     Checking odds v0.2.25
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling unicase v2.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking arrayvec v0.3.24
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking parking_lot_core v0.2.6
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.0
[INFO] [stderr]     Checking futures-cpupool v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking serde_json v1.0.6
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]     Checking mime v0.3.5
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking tokio-core v0.1.10
[INFO] [stderr]     Checking mio-uds v0.6.4
[INFO] [stderr]    Compiling serde_derive v1.0.20
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-uds v0.1.7
[INFO] [stderr]     Checking hyper v0.11.7
[INFO] [stderr]     Checking ethabi v4.2.0
[INFO] [stderr]     Checking jsonrpc-core v7.1.1
[INFO] [stderr]     Checking web3 v0.1.0
[INFO] [stderr]     Checking truebit_client v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Address`, `U256`
[INFO] [stdout]  --> src/main.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use web3::types::{Address, U256};
[INFO] [stdout]   |                   ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Address`, `U256`
[INFO] [stdout]  --> src/main.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use web3::types::{Address, U256};
[INFO] [stdout]   |                   ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.40s
[INFO] running `Command { std: "docker" "inspect" "dbb2fd0254c36ea3ebebd2863e92fca1bdeed678a89b03c70b04d663fa778f7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb2fd0254c36ea3ebebd2863e92fca1bdeed678a89b03c70b04d663fa778f7a", kill_on_drop: false }`
[INFO] [stdout] dbb2fd0254c36ea3ebebd2863e92fca1bdeed678a89b03c70b04d663fa778f7a