[INFO] cloning repository https://github.com/jacobrreed/rblockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacobrreed/rblockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrreed%2Frblockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrreed%2Frblockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 755ea0779d77b1267214c2cf12fa1949d59d7459
[INFO] checking jacobrreed/rblockchain against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrreed%2Frblockchain" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jacobrreed/rblockchain
[INFO] finished tweaking git repo https://github.com/jacobrreed/rblockchain
[INFO] tweaked toml for git repo https://github.com/jacobrreed/rblockchain written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jacobrreed/rblockchain on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jacobrreed/rblockchain 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking jacobrreed/rblockchain against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrreed%2Frblockchain" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jacobrreed/rblockchain
[INFO] finished tweaking git repo https://github.com/jacobrreed/rblockchain
[INFO] tweaked toml for git repo https://github.com/jacobrreed/rblockchain written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jacobrreed/rblockchain on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jacobrreed/rblockchain 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-targets v0.48.2
[INFO] [stderr]   Downloaded serde_json v1.0.105
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.48.2
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.48.2
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.48.2
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.48.2
[INFO] [stderr]   Downloaded windows_i686_gnu v0.48.2
[INFO] [stderr]   Downloaded windows_i686_msvc v0.48.2
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.48.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32367f981ccd82a22283449027bc47f7ab9c72b812722a53b11a2803ec1a7005
[INFO] running `Command { std: "docker" "start" "-a" "32367f981ccd82a22283449027bc47f7ab9c72b812722a53b11a2803ec1a7005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32367f981ccd82a22283449027bc47f7ab9c72b812722a53b11a2803ec1a7005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32367f981ccd82a22283449027bc47f7ab9c72b812722a53b11a2803ec1a7005", kill_on_drop: false }`
[INFO] [stdout] 32367f981ccd82a22283449027bc47f7ab9c72b812722a53b11a2803ec1a7005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18db520ad40ed10747660f4b882abbfb3ceb816e0f702af0cc4800d4367c86e1
[INFO] running `Command { std: "docker" "start" "-a" "18db520ad40ed10747660f4b882abbfb3ceb816e0f702af0cc4800d4367c86e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking time v0.1.45
[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 v0.10.7
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking rblockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `genesis_block` is never read
[INFO] [stdout]   --> src/models/blockchain.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout]  9 |     // The first block to be added to the chain.
[INFO] [stdout] 10 |     pub genesis_block: Block,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `genesis_block` is never read
[INFO] [stdout]   --> src/models/blockchain.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout]  9 |     // The first block to be added to the chain.
[INFO] [stdout] 10 |     pub genesis_block: Block,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Blockchain` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.92s
[INFO] running `Command { std: "docker" "inspect" "18db520ad40ed10747660f4b882abbfb3ceb816e0f702af0cc4800d4367c86e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18db520ad40ed10747660f4b882abbfb3ceb816e0f702af0cc4800d4367c86e1", kill_on_drop: false }`
[INFO] [stdout] 18db520ad40ed10747660f4b882abbfb3ceb816e0f702af0cc4800d4367c86e1