[INFO] cloning repository https://github.com/leandrolavore/blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leandrolavore/blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleandrolavore%2Fblockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleandrolavore%2Fblockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88ca252def12b5db32a73e43c7782ab5164e0a35
[INFO] checking leandrolavore/blockchain against master#613bdd49978298648ed05ace086bd1ecad54b44a for pr-136458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleandrolavore%2Fblockchain" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leandrolavore/blockchain on toolchain 613bdd49978298648ed05ace086bd1ecad54b44a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+613bdd49978298648ed05ace086bd1ecad54b44a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leandrolavore/blockchain
[INFO] finished tweaking git repo https://github.com/leandrolavore/blockchain
[INFO] tweaked toml for git repo https://github.com/leandrolavore/blockchain written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/leandrolavore/blockchain 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" "+613bdd49978298648ed05ace086bd1ecad54b44a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+613bdd49978298648ed05ace086bd1ecad54b44a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e40bfac531a975099394dadb4e78627ca119f4d9828c9fb225494072889beeb6
[INFO] running `Command { std: "docker" "start" "-a" "e40bfac531a975099394dadb4e78627ca119f4d9828c9fb225494072889beeb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e40bfac531a975099394dadb4e78627ca119f4d9828c9fb225494072889beeb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e40bfac531a975099394dadb4e78627ca119f4d9828c9fb225494072889beeb6", kill_on_drop: false }`
[INFO] [stdout] e40bfac531a975099394dadb4e78627ca119f4d9828c9fb225494072889beeb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+613bdd49978298648ed05ace086bd1ecad54b44a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9b00e2bd5b1bebf54208218f31062ca13147f42ffc7fed70161956fd5131472
[INFO] running `Command { std: "docker" "start" "-a" "f9b00e2bd5b1bebf54208218f31062ca13147f42ffc7fed70161956fd5131472", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[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 sha2 v0.10.8
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `previous_hash` is never read
[INFO] [stdout]   --> src/helpers/block.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     previous_hash: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `previous_hash` is never read
[INFO] [stdout]   --> src/helpers/block.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     previous_hash: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mempool` is never read
[INFO] [stdout]  --> src/helpers/blockchain.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Blockchain {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     pub mempool: Vec<String>,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mempool` is never read
[INFO] [stdout]  --> src/helpers/blockchain.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Blockchain {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     pub mempool: Vec<String>,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "f9b00e2bd5b1bebf54208218f31062ca13147f42ffc7fed70161956fd5131472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9b00e2bd5b1bebf54208218f31062ca13147f42ffc7fed70161956fd5131472", kill_on_drop: false }`
[INFO] [stdout] f9b00e2bd5b1bebf54208218f31062ca13147f42ffc7fed70161956fd5131472