[INFO] cloning repository https://github.com/bhc8521/traffic_light
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bhc8521/traffic_light" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhc8521%2Ftraffic_light", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhc8521%2Ftraffic_light'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7dbdc86aa99c88b48c14b4e924473cebcdfff7a2
[INFO] checking bhc8521/traffic_light against try#c05ee43175e02d208faed1fcc0f436c56e48bba6 for pr-92413
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhc8521%2Ftraffic_light" "/workspace/builds/worker-81/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-81/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bhc8521/traffic_light on toolchain c05ee43175e02d208faed1fcc0f436c56e48bba6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bhc8521/traffic_light
[INFO] finished tweaking git repo https://github.com/bhc8521/traffic_light
[INFO] tweaked toml for git repo https://github.com/bhc8521/traffic_light written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] crate git repo https://github.com/bhc8521/traffic_light already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "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-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd2206f328ebdd603c7f9e8592d4432855fec3819c77eeebd370e1a8563e10a8
[INFO] running `Command { std: "docker" "start" "-a" "bd2206f328ebdd603c7f9e8592d4432855fec3819c77eeebd370e1a8563e10a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd2206f328ebdd603c7f9e8592d4432855fec3819c77eeebd370e1a8563e10a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd2206f328ebdd603c7f9e8592d4432855fec3819c77eeebd370e1a8563e10a8", kill_on_drop: false }`
[INFO] [stdout] bd2206f328ebdd603c7f9e8592d4432855fec3819c77eeebd370e1a8563e10a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 688f6bd0f38369c680d5d57aa865e0fac20e64732ca921824bdf21d2317ccbd9
[INFO] running `Command { std: "docker" "start" "-a" "688f6bd0f38369c680d5d57aa865e0fac20e64732ca921824bdf21d2317ccbd9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking traffic_light v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]   --> src/main.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn time_last<'a>(&self) -> i32 {
[INFO] [stdout]    |                 -^^- help: elide the unused lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]   --> src/main.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn time_last<'a>(&self) -> i32 {
[INFO] [stdout]    |                 -^^- help: elide the unused lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Green,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Green,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `traffic_light` due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "688f6bd0f38369c680d5d57aa865e0fac20e64732ca921824bdf21d2317ccbd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "688f6bd0f38369c680d5d57aa865e0fac20e64732ca921824bdf21d2317ccbd9", kill_on_drop: false }`
[INFO] [stdout] 688f6bd0f38369c680d5d57aa865e0fac20e64732ca921824bdf21d2317ccbd9