[INFO] cloning repository https://github.com/qaoo8/simple-blockchain-by-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qaoo8/simple-blockchain-by-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaoo8%2Fsimple-blockchain-by-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaoo8%2Fsimple-blockchain-by-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 760bc3c51ab8728e7da842bbdffde73267b392db
[INFO] checking qaoo8/simple-blockchain-by-rust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaoo8%2Fsimple-blockchain-by-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qaoo8/simple-blockchain-by-rust on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qaoo8/simple-blockchain-by-rust
[INFO] finished tweaking git repo https://github.com/qaoo8/simple-blockchain-by-rust
[INFO] tweaked toml for git repo https://github.com/qaoo8/simple-blockchain-by-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/qaoo8/simple-blockchain-by-rust 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitcoin_hashes v0.7.6
[INFO] [stderr]   Downloaded clap v4.5.10
[INFO] [stderr]   Downloaded bitcoincash-addr v0.5.2
[INFO] [stderr]   Downloaded merkle-cbt v0.3.2
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded clap_builder v4.5.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fa932c06685859fd2c783111e828d482de3c3224d2a6fd37cfdbc058c8019f7
[INFO] running `Command { std: "docker" "start" "-a" "1fa932c06685859fd2c783111e828d482de3c3224d2a6fd37cfdbc058c8019f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fa932c06685859fd2c783111e828d482de3c3224d2a6fd37cfdbc058c8019f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa932c06685859fd2c783111e828d482de3c3224d2a6fd37cfdbc058c8019f7", kill_on_drop: false }`
[INFO] [stdout] 1fa932c06685859fd2c783111e828d482de3c3224d2a6fd37cfdbc058c8019f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d33a43f4157504cadc862cea24ebd61c6b21c7d4bbe061356862386fbe9997bd
[INFO] running `Command { std: "docker" "start" "-a" "d33a43f4157504cadc862cea24ebd61c6b21c7d4bbe061356862386fbe9997bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling cc v1.1.6
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]     Checking gimli v0.29.0
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]     Checking anstyle-query v1.1.0
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]     Checking clap_lex v0.7.1
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking bitcoin_hashes v0.7.6
[INFO] [stderr]     Checking merkle-cbt v0.3.2
[INFO] [stderr]     Checking clap_builder v4.5.10
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking object v0.36.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]    Compiling backtrace v0.3.73
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]     Checking clap v4.5.10
[INFO] [stderr]     Checking addr2line v0.22.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking bitcoincash-addr v0.5.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking blockchain-rust-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/block.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/blockchain.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let mut b = Blockchain::new().unwrap();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.58s
[INFO] running `Command { std: "docker" "inspect" "d33a43f4157504cadc862cea24ebd61c6b21c7d4bbe061356862386fbe9997bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33a43f4157504cadc862cea24ebd61c6b21c7d4bbe061356862386fbe9997bd", kill_on_drop: false }`
[INFO] [stdout] d33a43f4157504cadc862cea24ebd61c6b21c7d4bbe061356862386fbe9997bd