[INFO] updating cached repository https://github.com/josojo/web3-min-example
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 004b6375f55533e2400dff59b24a8db037507c90
[INFO] checking josojo/web3-min-example against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosojo%2Fweb3-min-example" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/josojo/web3-min-example on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/josojo/web3-min-example
[INFO] finished tweaking git repo https://github.com/josojo/web3-min-example
[INFO] tweaked toml for git repo https://github.com/josojo/web3-min-example written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/josojo/web3-min-example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b1d7374699ec1a677b4afaaa5249dea92408ac2ef677a710b8f20fc063db880d
[INFO] running `"docker" "start" "-a" "b1d7374699ec1a677b4afaaa5249dea92408ac2ef677a710b8f20fc063db880d"`
[INFO] [stderr]    Compiling serde v1.0.93
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking uint v0.4.1
[INFO] [stderr]     Checking fixed-hash v0.2.5
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking openssl v0.10.23
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking string v0.2.0
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking h2 v0.1.24
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking tokio v0.1.21
[INFO] [stderr]    Compiling serde_derive v1.0.93
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking hyper v0.12.30
[INFO] [stderr]     Checking websocket v0.21.1
[INFO] [stderr]     Checking tokio-uds v0.1.7
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking ethbloom v0.5.3
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking ethereum-types v0.4.2
[INFO] [stderr]     Checking jsonrpc-core v8.0.1
[INFO] [stderr]     Checking ethabi v6.1.0
[INFO] [stderr]     Checking web3 v0.6.0 (https://github.com/tomusdrw/rust-web3?rev=56ad08e#56ad08e0)
[INFO] [stderr]     Checking rust-example-web3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> bin/simple_storage.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytecode`
[INFO] [stderr]   --> bin/simple_storage.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let bytecode = include_str!("./../src/build/contracts_SimpleStorage_sol_SimpleStorage.bin");
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_bytecode`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> bin/simple_storage.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytecode`
[INFO] [stderr]   --> bin/simple_storage.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let bytecode = include_str!("./../src/build/contracts_SimpleStorage_sol_SimpleStorage.bin");
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_bytecode`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 44s
[INFO] running `"docker" "inspect" "b1d7374699ec1a677b4afaaa5249dea92408ac2ef677a710b8f20fc063db880d"`
[INFO] running `"docker" "rm" "-f" "b1d7374699ec1a677b4afaaa5249dea92408ac2ef677a710b8f20fc063db880d"`
[INFO] [stdout] b1d7374699ec1a677b4afaaa5249dea92408ac2ef677a710b8f20fc063db880d