[INFO] cloning repository https://github.com/1500256797/erc20_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1500256797/erc20_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1500256797%2Ferc20_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1500256797%2Ferc20_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 937718abfc4be6942c4b782e45080b018b22c2c2
[INFO] checking 1500256797/erc20_lib against 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa for pr-159356
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1500256797%2Ferc20_lib" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/1500256797/erc20_lib
[INFO] finished tweaking git repo https://github.com/1500256797/erc20_lib
[INFO] tweaked toml for git repo https://github.com/1500256797/erc20_lib written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/1500256797/erc20_lib on toolchain 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/1500256797/erc20_lib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c36f533e8924a726b63f9d01e781fa8c8c28c96d1d595403829afb31452ee0f5" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c
[INFO] running `Command { std: "docker" "start" "8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | /         get_erc20_token_top_holders_balance(
[INFO] [stdout] 81 | |             contract_address,
[INFO] [stdout] 82 | |             from_block,
[INFO] [stdout] 83 | |             to_block,
[INFO] [stdout] ...  |
[INFO] [stdout] 88 | |         .await;
[INFO] [stdout]    | |______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let _ = get_erc20_token_top_holders_balance(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.62s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: ethereum-types v0.14.1, ethers-contract-abigen v1.0.2, primitive-types v0.12.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c", kill_on_drop: false }`
[INFO] [stdout] 8c0b51b73e772487ff5e985b3006d779a75c2a1fc0d53d8bb916c91a5ad0079c
