[INFO] cloning repository https://github.com/rlopxhan21/best-hand-finder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rlopxhan21/best-hand-finder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frlopxhan21%2Fbest-hand-finder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frlopxhan21%2Fbest-hand-finder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cfa3c4d3dd6c8de0649bf5a5f6bb85d3e487372
[INFO] checking rlopxhan21/best-hand-finder against master#a9e7b30487235621751cc628f170c0f15fb215c4 for pr-136539
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frlopxhan21%2Fbest-hand-finder" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rlopxhan21/best-hand-finder on toolchain a9e7b30487235621751cc628f170c0f15fb215c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rlopxhan21/best-hand-finder
[INFO] finished tweaking git repo https://github.com/rlopxhan21/best-hand-finder
[INFO] tweaked toml for git repo https://github.com/rlopxhan21/best-hand-finder written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rlopxhan21/best-hand-finder 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" "+a9e7b30487235621751cc628f170c0f15fb215c4" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6d5562cba93ee540d7c629be35c1bcc912cde53a191e5f297d972ddd6ce4b91
[INFO] running `Command { std: "docker" "start" "-a" "c6d5562cba93ee540d7c629be35c1bcc912cde53a191e5f297d972ddd6ce4b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6d5562cba93ee540d7c629be35c1bcc912cde53a191e5f297d972ddd6ce4b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6d5562cba93ee540d7c629be35c1bcc912cde53a191e5f297d972ddd6ce4b91", kill_on_drop: false }`
[INFO] [stdout] c6d5562cba93ee540d7c629be35c1bcc912cde53a191e5f297d972ddd6ce4b91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fabc56931e394d8f5d1e38028cdba66c0e103c8bec5fa4a9f13b70a4d1a05fab
[INFO] running `Command { std: "docker" "start" "-a" "fabc56931e394d8f5d1e38028cdba66c0e103c8bec5fa4a9f13b70a4d1a05fab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking best-hand-finder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `CardInfo` is never constructed
[INFO] [stdout]  --> src/kitty.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct CardInfo {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cards` is never read
[INFO] [stdout]   --> src/kitty.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Thani {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 12 |     cards: [[String; 3]; 3],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thani` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/kitty.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Thani {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(best_cards: [[String; 3]; 3]) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `optimized_thani` is never read
[INFO] [stdout]   --> src/kitty.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Kitty {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 24 |     hath: [(String, String); 9],
[INFO] [stdout] 25 |     optimized_thani: Vec<Thani>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Kitty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CardInfo` is never constructed
[INFO] [stdout]  --> src/kitty.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct CardInfo {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cards` is never read
[INFO] [stdout]   --> src/kitty.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Thani {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 12 |     cards: [[String; 3]; 3],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thani` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/kitty.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Thani {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(best_cards: [[String; 3]; 3]) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `optimized_thani` is never read
[INFO] [stdout]   --> src/kitty.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Kitty {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 24 |     hath: [(String, String); 9],
[INFO] [stdout] 25 |     optimized_thani: Vec<Thani>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Kitty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "fabc56931e394d8f5d1e38028cdba66c0e103c8bec5fa4a9f13b70a4d1a05fab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fabc56931e394d8f5d1e38028cdba66c0e103c8bec5fa4a9f13b70a4d1a05fab", kill_on_drop: false }`
[INFO] [stdout] fabc56931e394d8f5d1e38028cdba66c0e103c8bec5fa4a9f13b70a4d1a05fab