[INFO] cloning repository https://github.com/sadrian-experiments-org/Three-Principal-Layers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sadrian-experiments-org/Three-Principal-Layers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsadrian-experiments-org%2FThree-Principal-Layers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsadrian-experiments-org%2FThree-Principal-Layers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 638b52b0c803cc22e28530fdd7212844e1efe155
[INFO] checking sadrian-experiments-org/Three-Principal-Layers against try#0cb362313295507a2f4321c0e30cea0168f2fe71 for pr-138961-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsadrian-experiments-org%2FThree-Principal-Layers" "/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/sadrian-experiments-org/Three-Principal-Layers
[INFO] finished tweaking git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers
[INFO] tweaked toml for git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers on toolchain 0cb362313295507a2f4321c0e30cea0168f2fe71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers 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" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "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 sadrian-experiments-org/Three-Principal-Layers against try#0cb362313295507a2f4321c0e30cea0168f2fe71 for pr-138961-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsadrian-experiments-org%2FThree-Principal-Layers" "/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/sadrian-experiments-org/Three-Principal-Layers
[INFO] finished tweaking git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers
[INFO] tweaked toml for git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers on toolchain 0cb362313295507a2f4321c0e30cea0168f2fe71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sadrian-experiments-org/Three-Principal-Layers 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" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "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] 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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 090883f0c421e1107bf089973d6e07d476ea4c0ebe9dca17dc5d6a940764a7a8
[INFO] running `Command { std: "docker" "start" "-a" "090883f0c421e1107bf089973d6e07d476ea4c0ebe9dca17dc5d6a940764a7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "090883f0c421e1107bf089973d6e07d476ea4c0ebe9dca17dc5d6a940764a7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "090883f0c421e1107bf089973d6e07d476ea4c0ebe9dca17dc5d6a940764a7a8", kill_on_drop: false }`
[INFO] [stdout] 090883f0c421e1107bf089973d6e07d476ea4c0ebe9dca17dc5d6a940764a7a8
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da676c3a1381312e88db15ecabe66098969d272e40227c3c445f2d4650c7fcc5
[INFO] running `Command { std: "docker" "start" "-a" "da676c3a1381312e88db15ecabe66098969d272e40227c3c445f2d4650c7fcc5", kill_on_drop: false }`
[INFO] [stderr]     Checking three_principal_layers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `room_number`
[INFO] [stdout]  --> src/domain_logic/transaction_script/oop.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn book_room(&self, room_number: u32) {
[INFO] [stdout]   |                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_room_number`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `room_number`
[INFO] [stdout]  --> src/domain_logic/transaction_script/oop.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn book_room(&self, room_number: u32) {
[INFO] [stdout]   |                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_room_number`
[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 0.07s
[INFO] running `Command { std: "docker" "inspect" "da676c3a1381312e88db15ecabe66098969d272e40227c3c445f2d4650c7fcc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da676c3a1381312e88db15ecabe66098969d272e40227c3c445f2d4650c7fcc5", kill_on_drop: false }`
[INFO] [stdout] da676c3a1381312e88db15ecabe66098969d272e40227c3c445f2d4650c7fcc5