[INFO] cloning repository https://github.com/Tiiita/leet-code-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tiiita/leet-code-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTiiita%2Fleet-code-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTiiita%2Fleet-code-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcbc92ce3981a96660e6e5d63bc73a140b856c14
[INFO] testing Tiiita/leet-code-rs against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTiiita%2Fleet-code-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tiiita/leet-code-rs
[INFO] finished tweaking git repo https://github.com/Tiiita/leet-code-rs
[INFO] tweaked toml for git repo https://github.com/Tiiita/leet-code-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tiiita/leet-code-rs on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tiiita/leet-code-rs 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 524d802b0d21445d22904991fea4fbb8309379a584058c76fc109b690cae778a
[INFO] running `Command { std: "docker" "start" "-a" "524d802b0d21445d22904991fea4fbb8309379a584058c76fc109b690cae778a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "524d802b0d21445d22904991fea4fbb8309379a584058c76fc109b690cae778a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "524d802b0d21445d22904991fea4fbb8309379a584058c76fc109b690cae778a", kill_on_drop: false }`
[INFO] [stdout] 524d802b0d21445d22904991fea4fbb8309379a584058c76fc109b690cae778a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d87d097976a1c7f58be1a0a0f500a381ec1a77a23144309a712fb98d1ce2295
[INFO] running `Command { std: "docker" "start" "-a" "1d87d097976a1c7f58be1a0a0f500a381ec1a77a23144309a712fb98d1ce2295", kill_on_drop: false }`
[INFO] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sudoku`
[INFO] [stdout]   --> src/sudoku_solver.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn validate_box(sudoku: &Sudoku) -> bool {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sudoku`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]  --> src/palindrome.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn test() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `palindrome_num` is never used
[INFO] [stdout]   --> src/palindrome.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn palindrome_num(num: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `palindrome` is never used
[INFO] [stdout]   --> src/palindrome.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn palindrome(chars: Chars<'_>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_box` is never used
[INFO] [stdout]   --> src/sudoku_solver.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn validate_box(sudoku: &Sudoku) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "1d87d097976a1c7f58be1a0a0f500a381ec1a77a23144309a712fb98d1ce2295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d87d097976a1c7f58be1a0a0f500a381ec1a77a23144309a712fb98d1ce2295", kill_on_drop: false }`
[INFO] [stdout] 1d87d097976a1c7f58be1a0a0f500a381ec1a77a23144309a712fb98d1ce2295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d77d605b0cd49d7925710c7d041435400f275cab249d31371c608e53d8fe857a
[INFO] running `Command { std: "docker" "start" "-a" "d77d605b0cd49d7925710c7d041435400f275cab249d31371c608e53d8fe857a", kill_on_drop: false }`
[INFO] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sudoku`
[INFO] [stdout]   --> src/sudoku_solver.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn validate_box(sudoku: &Sudoku) -> bool {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sudoku`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]  --> src/palindrome.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn test() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `palindrome_num` is never used
[INFO] [stdout]   --> src/palindrome.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn palindrome_num(num: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `palindrome` is never used
[INFO] [stdout]   --> src/palindrome.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn palindrome(chars: Chars<'_>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_box` is never used
[INFO] [stdout]   --> src/sudoku_solver.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn validate_box(sudoku: &Sudoku) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "d77d605b0cd49d7925710c7d041435400f275cab249d31371c608e53d8fe857a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77d605b0cd49d7925710c7d041435400f275cab249d31371c608e53d8fe857a", kill_on_drop: false }`
[INFO] [stdout] d77d605b0cd49d7925710c7d041435400f275cab249d31371c608e53d8fe857a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82e5f97f123fd968e1d0a828f5fcc3e4f4575029d7c3a6f9f46dd811b9320be5
[INFO] running `Command { std: "docker" "start" "-a" "82e5f97f123fd968e1d0a828f5fcc3e4f4575029d7c3a6f9f46dd811b9320be5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `sudoku`
[INFO] [stderr]   --> src/sudoku_solver.rs:45:17
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn validate_box(sudoku: &Sudoku) -> bool {
[INFO] [stderr]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sudoku`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test` is never used
[INFO] [stderr]  --> src/palindrome.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn test() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `palindrome_num` is never used
[INFO] [stderr]   --> src/palindrome.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn palindrome_num(num: i32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `palindrome` is never used
[INFO] [stderr]   --> src/palindrome.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn palindrome(chars: Chars<'_>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `validate_box` is never used
[INFO] [stderr]   --> src/sudoku_solver.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn validate_box(sudoku: &Sudoku) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `leet_code` (bin "leet_code" test) generated 5 warnings (run `cargo fix --bin "leet_code" -p leet_code --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/leet_code-b662205d6e703ae9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82e5f97f123fd968e1d0a828f5fcc3e4f4575029d7c3a6f9f46dd811b9320be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e5f97f123fd968e1d0a828f5fcc3e4f4575029d7c3a6f9f46dd811b9320be5", kill_on_drop: false }`
[INFO] [stdout] 82e5f97f123fd968e1d0a828f5fcc3e4f4575029d7c3a6f9f46dd811b9320be5