[INFO] cloning repository https://github.com/dustinpor2626/BlockChainWithRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dustinpor2626/BlockChainWithRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustinpor2626%2FBlockChainWithRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustinpor2626%2FBlockChainWithRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5e36f3cc1617e0a98f5857c6e974d2e0e019e28
[INFO] checking dustinpor2626/BlockChainWithRust against master#0e517d38ad0e72f93c734b14fabd4bb9b7441de6 for pr-140557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustinpor2626%2FBlockChainWithRust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dustinpor2626/BlockChainWithRust on toolchain 0e517d38ad0e72f93c734b14fabd4bb9b7441de6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dustinpor2626/BlockChainWithRust
[INFO] finished tweaking git repo https://github.com/dustinpor2626/BlockChainWithRust
[INFO] tweaked toml for git repo https://github.com/dustinpor2626/BlockChainWithRust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dustinpor2626/BlockChainWithRust 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" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec4f154e6225c74484b6c1c31cfc3a7a52d22eb596d92278ee143401cdd2b690
[INFO] running `Command { std: "docker" "start" "-a" "ec4f154e6225c74484b6c1c31cfc3a7a52d22eb596d92278ee143401cdd2b690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec4f154e6225c74484b6c1c31cfc3a7a52d22eb596d92278ee143401cdd2b690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4f154e6225c74484b6c1c31cfc3a7a52d22eb596d92278ee143401cdd2b690", kill_on_drop: false }`
[INFO] [stdout] ec4f154e6225c74484b6c1c31cfc3a7a52d22eb596d92278ee143401cdd2b690
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+0e517d38ad0e72f93c734b14fabd4bb9b7441de6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e51d8e49960eeca540c37b4ef4ff3835d20585b9ecad9677c04220ab931a702
[INFO] running `Command { std: "docker" "start" "-a" "7e51d8e49960eeca540c37b4ef4ff3835d20585b9ecad9677c04220ab931a702", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.8
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]   --> src/blockchain.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Blockchain {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_hash` is never used
[INFO] [stdout]  --> src/hash.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn calculate_hash(data: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]   --> src/blockchain.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Blockchain {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_hash` is never used
[INFO] [stdout]  --> src/hash.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn calculate_hash(data: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | /         io::stdin()
[INFO] [stdout] 17 | |         .read_line(&mut input);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let _ = io::stdin()
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | /         io::stdin()
[INFO] [stdout] 17 | |         .read_line(&mut input);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let _ = io::stdin()
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "7e51d8e49960eeca540c37b4ef4ff3835d20585b9ecad9677c04220ab931a702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e51d8e49960eeca540c37b4ef4ff3835d20585b9ecad9677c04220ab931a702", kill_on_drop: false }`
[INFO] [stdout] 7e51d8e49960eeca540c37b4ef4ff3835d20585b9ecad9677c04220ab931a702