[INFO] cloning repository https://github.com/cheesekon/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cheesekon/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheesekon%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheesekon%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35ef4c25a036cc5449e8c52709fb3b16c96802b5
[INFO] checking cheesekon/rust-practice against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheesekon%2Frust-practice" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cheesekon/rust-practice
[INFO] finished tweaking git repo https://github.com/cheesekon/rust-practice
[INFO] tweaked toml for git repo https://github.com/cheesekon/rust-practice written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cheesekon/rust-practice on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cheesekon/rust-practice 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ecafaa07ba018e09a57bf3033590a4e2b78b9db407ae5fbb8d50cc19da0bf70
[INFO] running `Command { std: "docker" "start" "-a" "9ecafaa07ba018e09a57bf3033590a4e2b78b9db407ae5fbb8d50cc19da0bf70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ecafaa07ba018e09a57bf3033590a4e2b78b9db407ae5fbb8d50cc19da0bf70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ecafaa07ba018e09a57bf3033590a4e2b78b9db407ae5fbb8d50cc19da0bf70", kill_on_drop: false }`
[INFO] [stdout] 9ecafaa07ba018e09a57bf3033590a4e2b78b9db407ae5fbb8d50cc19da0bf70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c865c56f860516a2c803bcda4843167daeb23dc5f96f0985c1594e73875244d4
[INFO] running `Command { std: "docker" "start" "-a" "c865c56f860516a2c803bcda4843167daeb23dc5f96f0985c1594e73875244d4", kill_on_drop: false }`
[INFO] [stderr]     Checking homework v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `TrafficLightTrait` is never used
[INFO] [stdout]   --> src/lib.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait TrafficLightTrait {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TrafficLight` is never used
[INFO] [stdout]   --> src/lib.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum TrafficLight {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TrafficLightTrait` is never used
[INFO] [stdout]   --> src/lib.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait TrafficLightTrait {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TrafficLight` is never used
[INFO] [stdout]   --> src/lib.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum TrafficLight {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "c865c56f860516a2c803bcda4843167daeb23dc5f96f0985c1594e73875244d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c865c56f860516a2c803bcda4843167daeb23dc5f96f0985c1594e73875244d4", kill_on_drop: false }`
[INFO] [stdout] c865c56f860516a2c803bcda4843167daeb23dc5f96f0985c1594e73875244d4
