[INFO] cloning repository https://github.com/ankur-kalita/Blockchain_impl_bsc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ankur-kalita/Blockchain_impl_bsc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fankur-kalita%2FBlockchain_impl_bsc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fankur-kalita%2FBlockchain_impl_bsc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 821ec71515a22a1290911b514fdd99b7d69c2839
[INFO] checking ankur-kalita/Blockchain_impl_bsc against master#fe348cd1a8e0fa445b772393147ed865904dcd4d for pr-139587-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fankur-kalita%2FBlockchain_impl_bsc" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ankur-kalita/Blockchain_impl_bsc on toolchain fe348cd1a8e0fa445b772393147ed865904dcd4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ankur-kalita/Blockchain_impl_bsc
[INFO] finished tweaking git repo https://github.com/ankur-kalita/Blockchain_impl_bsc
[INFO] tweaked toml for git repo https://github.com/ankur-kalita/Blockchain_impl_bsc written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ankur-kalita/Blockchain_impl_bsc 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" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-trait v0.1.85
[INFO] [stderr]   Downloaded sha256 v1.5.0
[INFO] [stderr]   Downloaded cc v1.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2172e87b23e780b91a2e70fde1ebc3211557cb264e957e42bb1c54bc6f3904fa
[INFO] running `Command { std: "docker" "start" "-a" "2172e87b23e780b91a2e70fde1ebc3211557cb264e957e42bb1c54bc6f3904fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2172e87b23e780b91a2e70fde1ebc3211557cb264e957e42bb1c54bc6f3904fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2172e87b23e780b91a2e70fde1ebc3211557cb264e957e42bb1c54bc6f3904fa", kill_on_drop: false }`
[INFO] [stdout] 2172e87b23e780b91a2e70fde1ebc3211557cb264e957e42bb1c54bc6f3904fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 328703f89bfef7204d742654902cf76df95116c49f99c21b2c55d8b09cfacc7b
[INFO] running `Command { std: "docker" "start" "-a" "328703f89bfef7204d742654902cf76df95116c49f99c21b2c55d8b09cfacc7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]     Checking cpufeatures v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking chrono v0.4.39
[INFO] [stderr]    Compiling async-trait v0.1.85
[INFO] [stderr]     Checking sha256 v1.5.0
[INFO] [stderr]     Checking Blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::hash`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::hash;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::hash`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::hash;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `new_BC` should have a snake case name
[INFO] [stdout]    --> src/main.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let mut new_BC: Blockchain = Blockchain::new();
[INFO] [stdout]     |             ^^^^^^ help: convert the identifier to snake case: `new_bc`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `new_BC` should have a snake case name
[INFO] [stdout]    --> src/main.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let mut new_BC: Blockchain = Blockchain::new();
[INFO] [stdout]     |             ^^^^^^ help: convert the identifier to snake case: `new_bc`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "328703f89bfef7204d742654902cf76df95116c49f99c21b2c55d8b09cfacc7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "328703f89bfef7204d742654902cf76df95116c49f99c21b2c55d8b09cfacc7b", kill_on_drop: false }`
[INFO] [stdout] 328703f89bfef7204d742654902cf76df95116c49f99c21b2c55d8b09cfacc7b