[INFO] cloning repository https://github.com/qihan-z/bitcoin_network_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qihan-z/bitcoin_network_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqihan-z%2Fbitcoin_network_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqihan-z%2Fbitcoin_network_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7f6f6c44e3efde6e978ca8660ddee630bd5a1a0
[INFO] checking qihan-z/bitcoin_network_rust/f7f6f6c44e3efde6e978ca8660ddee630bd5a1a0 against master#27d8a577138c0d319a572cd1a464c2b755e577de for pr-118882
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqihan-z%2Fbitcoin_network_rust" "/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/qihan-z/bitcoin_network_rust on toolchain 27d8a577138c0d319a572cd1a464c2b755e577de
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+27d8a577138c0d319a572cd1a464c2b755e577de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qihan-z/bitcoin_network_rust
[INFO] finished tweaking git repo https://github.com/qihan-z/bitcoin_network_rust
[INFO] tweaked toml for git repo https://github.com/qihan-z/bitcoin_network_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/qihan-z/bitcoin_network_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" "+27d8a577138c0d319a572cd1a464c2b755e577de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+27d8a577138c0d319a572cd1a464c2b755e577de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec82f2cbb3c5be06c0c16796aa2dd9457080cb7a3a53a1b4b278dc5e1eb7cce4
[INFO] running `Command { std: "docker" "start" "-a" "ec82f2cbb3c5be06c0c16796aa2dd9457080cb7a3a53a1b4b278dc5e1eb7cce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec82f2cbb3c5be06c0c16796aa2dd9457080cb7a3a53a1b4b278dc5e1eb7cce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec82f2cbb3c5be06c0c16796aa2dd9457080cb7a3a53a1b4b278dc5e1eb7cce4", kill_on_drop: false }`
[INFO] [stdout] ec82f2cbb3c5be06c0c16796aa2dd9457080cb7a3a53a1b4b278dc5e1eb7cce4
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+27d8a577138c0d319a572cd1a464c2b755e577de" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5a19b0591bdcc05687186159d1616288eff58468625ffa847f451b50420133d
[INFO] running `Command { std: "docker" "start" "-a" "c5a19b0591bdcc05687186159d1616288eff58468625ffa847f451b50420133d", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking bitcoin_network_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `time`, `data`, and `prev_block_hash` are never read
[INFO] [stdout]  --> src/block.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Block {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 4 |     time: u64,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     data: Vec<u8>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     prev_block_hash: Vec<u8>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_hash`, and `new_genesis_block` are never used
[INFO] [stdout]   --> src/block.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Block {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 11 |     fn new(data: &str, prev_block_hash: Vec<u8>) -> Block {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn set_hash(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn new_genesis_block() -> Block {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `time`, `data`, and `prev_block_hash` are never read
[INFO] [stdout]  --> src/block.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Block {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 4 |     time: u64,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     data: Vec<u8>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     prev_block_hash: Vec<u8>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_hash`, and `new_genesis_block` are never used
[INFO] [stdout]   --> src/block.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Block {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 11 |     fn new(data: &str, prev_block_hash: Vec<u8>) -> Block {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn set_hash(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn new_genesis_block() -> Block {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "c5a19b0591bdcc05687186159d1616288eff58468625ffa847f451b50420133d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5a19b0591bdcc05687186159d1616288eff58468625ffa847f451b50420133d", kill_on_drop: false }`
[INFO] [stdout] c5a19b0591bdcc05687186159d1616288eff58468625ffa847f451b50420133d