[INFO] cloning repository https://github.com/jam411/blockchain-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jam411/blockchain-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjam411%2Fblockchain-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjam411%2Fblockchain-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4de27b1f0bd51d8e05c6f9310e72721a8628445b
[INFO] checking jam411/blockchain-in-rust against master#e22dab387f6b4f6a87dfc54ac2f6013dddb41e68 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjam411%2Fblockchain-in-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] started tweaking git repo https://github.com/jam411/blockchain-in-rust
[INFO] finished tweaking git repo https://github.com/jam411/blockchain-in-rust
[INFO] tweaked toml for git repo https://github.com/jam411/blockchain-in-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jam411/blockchain-in-rust on toolchain e22dab387f6b4f6a87dfc54ac2f6013dddb41e68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jam411/blockchain-in-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" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.74
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 328b2e9827b061cbf0156ffaf0fabc8e96117a759ba5d67642c8fb1c8c0cd274
[INFO] running `Command { std: "docker" "start" "-a" "328b2e9827b061cbf0156ffaf0fabc8e96117a759ba5d67642c8fb1c8c0cd274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "328b2e9827b061cbf0156ffaf0fabc8e96117a759ba5d67642c8fb1c8c0cd274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "328b2e9827b061cbf0156ffaf0fabc8e96117a759ba5d67642c8fb1c8c0cd274", kill_on_drop: false }`
[INFO] [stdout] 328b2e9827b061cbf0156ffaf0fabc8e96117a759ba5d67642c8fb1c8c0cd274
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07b59c68ae3ae12995ff378c4e2f0472cc4c15f32f2c7027b5df80a045f83a53
[INFO] running `Command { std: "docker" "start" "-a" "07b59c68ae3ae12995ff378c4e2f0472cc4c15f32f2c7027b5df80a045f83a53", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking blockchain-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]   --> src/block.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         nonce: u64,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonce`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nonce`
[INFO] [stdout]   --> src/block.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         nonce: u64,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonce`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.62s
[INFO] running `Command { std: "docker" "inspect" "07b59c68ae3ae12995ff378c4e2f0472cc4c15f32f2c7027b5df80a045f83a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b59c68ae3ae12995ff378c4e2f0472cc4c15f32f2c7027b5df80a045f83a53", kill_on_drop: false }`
[INFO] [stdout] 07b59c68ae3ae12995ff378c4e2f0472cc4c15f32f2c7027b5df80a045f83a53
