[INFO] cloning repository https://github.com/chunhongZheng/substrate-learning-lesson4-04
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chunhongZheng/substrate-learning-lesson4-04" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FchunhongZheng%2Fsubstrate-learning-lesson4-04", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FchunhongZheng%2Fsubstrate-learning-lesson4-04'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a38d6857c3644e558dab24f3ddd95d236f51ab1
[INFO] checking chunhongZheng/substrate-learning-lesson4-04 against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FchunhongZheng%2Fsubstrate-learning-lesson4-04" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chunhongZheng/substrate-learning-lesson4-04
[INFO] finished tweaking git repo https://github.com/chunhongZheng/substrate-learning-lesson4-04
[INFO] tweaked toml for git repo https://github.com/chunhongZheng/substrate-learning-lesson4-04 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chunhongZheng/substrate-learning-lesson4-04 on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chunhongZheng/substrate-learning-lesson4-04 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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 861b41bd82122dffe0508da094c700302c031a46e18d255aacabb11be8f2ce5d
[INFO] running `Command { std: "docker" "start" "-a" "861b41bd82122dffe0508da094c700302c031a46e18d255aacabb11be8f2ce5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "861b41bd82122dffe0508da094c700302c031a46e18d255aacabb11be8f2ce5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "861b41bd82122dffe0508da094c700302c031a46e18d255aacabb11be8f2ce5d", kill_on_drop: false }`
[INFO] [stdout] 861b41bd82122dffe0508da094c700302c031a46e18d255aacabb11be8f2ce5d
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22f808465aa2b7c704ce64aae0e1c2c937de1d723d2ddfef2890780b59b5cfc1
[INFO] running `Command { std: "docker" "start" "-a" "22f808465aa2b7c704ce64aae0e1c2c937de1d723d2ddfef2890780b59b5cfc1", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-learn-lesson4-04 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Yellow` is never constructed
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum TrafficLight{
[INFO] [stdout]   |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     Yellow,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `redLight` should have a snake case name
[INFO] [stdout]   --> src/main.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let  redLight = TrafficLight::Red;
[INFO] [stdout]    |          ^^^^^^^^ help: convert the identifier to snake case: `red_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `greenLight` should have a snake case name
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let greenLight = TrafficLight::Green;
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `green_light`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Yellow` is never constructed
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum TrafficLight{
[INFO] [stdout]   |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     Yellow,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `redLight` should have a snake case name
[INFO] [stdout]   --> src/main.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let  redLight = TrafficLight::Red;
[INFO] [stdout]    |          ^^^^^^^^ help: convert the identifier to snake case: `red_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `greenLight` should have a snake case name
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let greenLight = TrafficLight::Green;
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `green_light`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "22f808465aa2b7c704ce64aae0e1c2c937de1d723d2ddfef2890780b59b5cfc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f808465aa2b7c704ce64aae0e1c2c937de1d723d2ddfef2890780b59b5cfc1", kill_on_drop: false }`
[INFO] [stdout] 22f808465aa2b7c704ce64aae0e1c2c937de1d723d2ddfef2890780b59b5cfc1