[INFO] cloning repository https://github.com/levinotik/reetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/levinotik/reetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flevinotik%2Freetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flevinotik%2Freetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66dbca7ee7d896e93ebd938a693eb7393c97c3e0
[INFO] checking levinotik/reetcode against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flevinotik%2Freetcode" "/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/levinotik/reetcode on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/levinotik/reetcode
[INFO] finished tweaking git repo https://github.com/levinotik/reetcode
[INFO] tweaked toml for git repo https://github.com/levinotik/reetcode written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/levinotik/reetcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b593e983a4ce8abe0a12c2acc3b35c6171ad7c07b2b584d78829ce50e1057071
[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" "b593e983a4ce8abe0a12c2acc3b35c6171ad7c07b2b584d78829ce50e1057071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b593e983a4ce8abe0a12c2acc3b35c6171ad7c07b2b584d78829ce50e1057071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b593e983a4ce8abe0a12c2acc3b35c6171ad7c07b2b584d78829ce50e1057071", kill_on_drop: false }`
[INFO] [stdout] b593e983a4ce8abe0a12c2acc3b35c6171ad7c07b2b584d78829ce50e1057071
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b37d9a5c4f7251bfc606c9556bd56302d40941955377522d00d952739a81eba5
[INFO] running `Command { std: "docker" "start" "-a" "b37d9a5c4f7251bfc606c9556bd56302d40941955377522d00d952739a81eba5", kill_on_drop: false }`
[INFO] [stderr]     Checking reetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `defang_ip_address`
[INFO] [stdout]  --> src/solutions.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn defang_ip_address(address: String) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `relative_sort_array`
[INFO] [stdout]   --> src/solutions.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn relative_sort_array(arr1: Vec<i32>, arr2: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `num_equiv_domino_pairs`
[INFO] [stdout]   --> src/solutions.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn num_equiv_domino_pairs(dominoes: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "b37d9a5c4f7251bfc606c9556bd56302d40941955377522d00d952739a81eba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b37d9a5c4f7251bfc606c9556bd56302d40941955377522d00d952739a81eba5", kill_on_drop: false }`
[INFO] [stdout] b37d9a5c4f7251bfc606c9556bd56302d40941955377522d00d952739a81eba5