[INFO] cloning repository https://github.com/Nerlin/rust-poker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nerlin/rust-poker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNerlin%2Frust-poker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNerlin%2Frust-poker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23d98f0670702a91a8ead87b10a00bf7cd82314f
[INFO] testing Nerlin/rust-poker against 1.95.0 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNerlin%2Frust-poker" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nerlin/rust-poker
[INFO] finished tweaking git repo https://github.com/Nerlin/rust-poker
[INFO] tweaked toml for git repo https://github.com/Nerlin/rust-poker written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nerlin/rust-poker on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nerlin/rust-poker 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97cd40e20e36f8c0ba9dc8d77605d5703904d4200f8e518136b772c5e3604bcc
[INFO] running `Command { std: "docker" "start" "-a" "97cd40e20e36f8c0ba9dc8d77605d5703904d4200f8e518136b772c5e3604bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97cd40e20e36f8c0ba9dc8d77605d5703904d4200f8e518136b772c5e3604bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97cd40e20e36f8c0ba9dc8d77605d5703904d4200f8e518136b772c5e3604bcc", kill_on_drop: false }`
[INFO] [stdout] 97cd40e20e36f8c0ba9dc8d77605d5703904d4200f8e518136b772c5e3604bcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f290f843f4dd32b24cc25bba110202e3c37915f32eab2af218780a8a4a112f8
[INFO] running `Command { std: "docker" "start" "-a" "7f290f843f4dd32b24cc25bba110202e3c37915f32eab2af218780a8a4a112f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling rust-poker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn check_flush_royal(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                                ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn check_flush_royal(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn check_straight(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                             ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn check_straight(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn check_flush(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                          ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn check_flush(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:82:31
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn check_duplicates(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                               ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn check_duplicates(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/poker/rules.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn check_high(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]     |                         ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn check_high(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "7f290f843f4dd32b24cc25bba110202e3c37915f32eab2af218780a8a4a112f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f290f843f4dd32b24cc25bba110202e3c37915f32eab2af218780a8a4a112f8", kill_on_drop: false }`
[INFO] [stdout] 7f290f843f4dd32b24cc25bba110202e3c37915f32eab2af218780a8a4a112f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d7ce6b10c3bb295eff0c87aea7b6e642e2af34e2b47aba6e36763839fc2ec65
[INFO] running `Command { std: "docker" "start" "-a" "2d7ce6b10c3bb295eff0c87aea7b6e642e2af34e2b47aba6e36763839fc2ec65", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-poker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn check_flush_royal(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                                ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn check_flush_royal(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn check_straight(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                             ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn check_straight(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn check_flush(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                          ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn check_flush(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poker/rules.rs:82:31
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn check_duplicates(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]    |                               ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn check_duplicates(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/poker/rules.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn check_high(hand: &Hand) -> Option<Combination> {
[INFO] [stdout]     |                         ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn check_high(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "2d7ce6b10c3bb295eff0c87aea7b6e642e2af34e2b47aba6e36763839fc2ec65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7ce6b10c3bb295eff0c87aea7b6e642e2af34e2b47aba6e36763839fc2ec65", kill_on_drop: false }`
[INFO] [stdout] 2d7ce6b10c3bb295eff0c87aea7b6e642e2af34e2b47aba6e36763839fc2ec65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f66a3cdb954dc018cec65901744c578d2c0f2db66e36c70e55dc3019bb3c77b
[INFO] running `Command { std: "docker" "start" "-a" "6f66a3cdb954dc018cec65901744c578d2c0f2db66e36c70e55dc3019bb3c77b", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/poker/rules.rs:11:32
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn check_flush_royal(hand: &Hand) -> Option<Combination> {
[INFO] [stderr]    |                                ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                |
[INFO] [stderr]    |                                the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn check_flush_royal(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stderr]    |                                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/poker/rules.rs:41:29
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn check_straight(hand: &Hand) -> Option<Combination> {
[INFO] [stderr]    |                             ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn check_straight(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stderr]    |                                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/poker/rules.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn check_flush(hand: &Hand) -> Option<Combination> {
[INFO] [stderr]    |                          ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn check_flush(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stderr]    |                                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/poker/rules.rs:82:31
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn check_duplicates(hand: &Hand) -> Option<Combination> {
[INFO] [stderr]    |                               ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                               |
[INFO] [stderr]    |                               the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn check_duplicates(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stderr]    |                                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/poker/rules.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn check_high(hand: &Hand) -> Option<Combination> {
[INFO] [stderr]     |                         ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn check_high(hand: &Hand) -> Option<Combination<'_>> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-poker` (bin "rust-poker" test) generated 5 warnings (run `cargo fix --bin "rust-poker" -p rust-poker --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_poker-9557354652c1f608)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test tests::test_flush_fail ... ok
[INFO] [stdout] test tests::test_flush ... ok
[INFO] [stdout] test tests::test_flush_royal_returns_straight ... ok
[INFO] [stdout] test tests::test_flush_royal_returns_flush ... ok
[INFO] [stdout] test tests::test_four_of_a_kind ... ok
[INFO] [stdout] test tests::test_pair ... ok
[INFO] [stdout] test tests::test_straight_fail ... ok
[INFO] [stdout] test tests::test_straight_from_ten_to_ace ... ok
[INFO] [stdout] test tests::test_flush_royal_fail ... ok
[INFO] [stdout] test tests::test_two_pairs ... ok
[INFO] [stdout] test tests::test_straight ... ok
[INFO] [stdout] test tests::test_straight_from_ace_to_five ... ok
[INFO] [stdout] test tests::test_three_of_a_kind ... ok
[INFO] [stdout] test tests::test_no_duplicates ... ok
[INFO] [stdout] test tests::test_flush_royal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f66a3cdb954dc018cec65901744c578d2c0f2db66e36c70e55dc3019bb3c77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f66a3cdb954dc018cec65901744c578d2c0f2db66e36c70e55dc3019bb3c77b", kill_on_drop: false }`
[INFO] [stdout] 6f66a3cdb954dc018cec65901744c578d2c0f2db66e36c70e55dc3019bb3c77b
