[INFO] cloning repository https://github.com/avanhatt/parallel_fsm_rv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/avanhatt/parallel_fsm_rv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favanhatt%2Fparallel_fsm_rv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favanhatt%2Fparallel_fsm_rv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 956855fb5919aca199781073404c12ca9cafb164
[INFO] checking avanhatt/parallel_fsm_rv against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favanhatt%2Fparallel_fsm_rv" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/avanhatt/parallel_fsm_rv on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/avanhatt/parallel_fsm_rv
[INFO] finished tweaking git repo https://github.com/avanhatt/parallel_fsm_rv
[INFO] tweaked toml for git repo https://github.com/avanhatt/parallel_fsm_rv written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/avanhatt/parallel_fsm_rv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum_macros v0.13.0
[INFO] [stderr]   Downloaded strum v0.13.0
[INFO] [stderr]   Downloaded rust-fsm v0.4.0
[INFO] [stderr]   Downloaded rust-fsm-dsl v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34bfceaa1ceeeea78884161677e10e10ce2872726298604c2ce192a947cccc24
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34bfceaa1ceeeea78884161677e10e10ce2872726298604c2ce192a947cccc24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34bfceaa1ceeeea78884161677e10e10ce2872726298604c2ce192a947cccc24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34bfceaa1ceeeea78884161677e10e10ce2872726298604c2ce192a947cccc24", kill_on_drop: false }`
[INFO] [stdout] 34bfceaa1ceeeea78884161677e10e10ce2872726298604c2ce192a947cccc24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b44e3fb68825f0b31abd04a73104dd50a8d97c4c2f1cd7f8962134cc384bd84
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7b44e3fb68825f0b31abd04a73104dd50a8d97c4c2f1cd7f8962134cc384bd84", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking strum v0.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling rust-fsm-dsl v0.4.0
[INFO] [stderr]    Compiling strum_macros v0.13.0
[INFO] [stderr]     Checking rust-fsm v0.4.0
[INFO] [stderr]     Checking parallel_fsm_rv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Yellow`
[INFO] [stdout]   --> src/main.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |       Yellow => Stopping,
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.27s
[INFO] running `Command { std: "docker" "inspect" "7b44e3fb68825f0b31abd04a73104dd50a8d97c4c2f1cd7f8962134cc384bd84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b44e3fb68825f0b31abd04a73104dd50a8d97c4c2f1cd7f8962134cc384bd84", kill_on_drop: false }`
[INFO] [stdout] 7b44e3fb68825f0b31abd04a73104dd50a8d97c4c2f1cd7f8962134cc384bd84