[INFO] cloning repository https://github.com/wlyh514/carcassonne
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wlyh514/carcassonne" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlyh514%2Fcarcassonne", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlyh514%2Fcarcassonne'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7b2b6ca49940727aac41300bdf8c603a9b646c6
[INFO] checking wlyh514/carcassonne against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwlyh514%2Fcarcassonne" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wlyh514/carcassonne
[INFO] finished tweaking git repo https://github.com/wlyh514/carcassonne
[INFO] tweaked toml for git repo https://github.com/wlyh514/carcassonne written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wlyh514/carcassonne on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wlyh514/carcassonne 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0da7fb6bee1031decba129d92710a1536fde2f0d68a8cbaec19e95f8c740dcc1
[INFO] running `Command { std: "docker" "start" "-a" "0da7fb6bee1031decba129d92710a1536fde2f0d68a8cbaec19e95f8c740dcc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0da7fb6bee1031decba129d92710a1536fde2f0d68a8cbaec19e95f8c740dcc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da7fb6bee1031decba129d92710a1536fde2f0d68a8cbaec19e95f8c740dcc1", kill_on_drop: false }`
[INFO] [stdout] 0da7fb6bee1031decba129d92710a1536fde2f0d68a8cbaec19e95f8c740dcc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2492ede394382665c12e6f64447423d38f7bd0c7cf37b0ff1e5e0833b194277e
[INFO] running `Command { std: "docker" "start" "-a" "2492ede394382665c12e6f64447423d38f7bd0c7cf37b0ff1e5e0833b194277e", kill_on_drop: false }`
[INFO] [stderr]     Checking carcassonne v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Road` and `River` are never constructed
[INFO] [stdout]  --> src/carcassonne.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Segment {
[INFO] [stdout]   |          ------- variants in this enum
[INFO] [stdout] 6 |     Road,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     River,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Segment` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `connected` is never used
[INFO] [stdout]   --> src/utils.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | / impl<T> UnionFind<T>
[INFO] [stdout] 14 | | where
[INFO] [stdout] 15 | |     T: Eq + Hash + Clone,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |       pub fn connected(&mut self, x: &T, y: &T) -> bool {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Road` and `River` are never constructed
[INFO] [stdout]  --> src/carcassonne.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Segment {
[INFO] [stdout]   |          ------- variants in this enum
[INFO] [stdout] 6 |     Road,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     River,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Segment` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `connected` is never used
[INFO] [stdout]   --> src/utils.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | / impl<T> UnionFind<T>
[INFO] [stdout] 14 | | where
[INFO] [stdout] 15 | |     T: Eq + Hash + Clone,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |       pub fn connected(&mut self, x: &T, y: &T) -> bool {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "2492ede394382665c12e6f64447423d38f7bd0c7cf37b0ff1e5e0833b194277e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2492ede394382665c12e6f64447423d38f7bd0c7cf37b0ff1e5e0833b194277e", kill_on_drop: false }`
[INFO] [stdout] 2492ede394382665c12e6f64447423d38f7bd0c7cf37b0ff1e5e0833b194277e