[INFO] cloning repository https://github.com/openkylin/rust-clap-3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/openkylin/rust-clap-3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopenkylin%2Frust-clap-3", kill_on_drop: false }`
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[INFO] [stdout] 2b0adc7834518c4633e0d85e4b7dd67b412f8c5c
[INFO] checking openkylin/rust-clap-3 against try#5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopenkylin%2Frust-clap-3" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/openkylin/rust-clap-3
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/openkylin/rust-clap-3
[INFO] tweaked toml for git repo https://github.com/openkylin/rust-clap-3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/openkylin/rust-clap-3 on toolchain 5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/openkylin/rust-clap-3 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" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cae253e4a2c68ce771e74b5e5cff4537217ed8ac321f0963675ba8bff2398e5d
[INFO] running `Command { std: "docker" "start" "-a" "cae253e4a2c68ce771e74b5e5cff4537217ed8ac321f0963675ba8bff2398e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cae253e4a2c68ce771e74b5e5cff4537217ed8ac321f0963675ba8bff2398e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cae253e4a2c68ce771e74b5e5cff4537217ed8ac321f0963675ba8bff2398e5d", kill_on_drop: false }`
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[INFO] [stdout] 78bcef26381653e25856af7639fb99667e74caba7d13b9b2667ea2dfc6978cfc
[INFO] running `Command { std: "docker" "start" "-a" "78bcef26381653e25856af7639fb99667e74caba7d13b9b2667ea2dfc6978cfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.139
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling trybuild v1.0.63
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling rustversion v1.0.8
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking shlex v1.1.0
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[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v3.2.25 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:154:7
[INFO] [stdout]     |
[INFO] [stdout] 154 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:156:7
[INFO] [stdout]     |
[INFO] [stdout] 156 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:158:7
[INFO] [stdout]     |
[INFO] [stdout] 158 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:160:7
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:162:7
[INFO] [stdout]     |
[INFO] [stdout] 162 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/arg.rs:219:15
[INFO] [stdout]     |
[INFO] [stdout] 219 |         #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/arg.rs:223:19
[INFO] [stdout]     |
[INFO] [stdout] 223 |         #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]     --> src/builder/command.rs:2350:15
[INFO] [stdout]      |
[INFO] [stdout] 2350 |         #[cfg(feature = "unstable-v4")]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]      = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]     --> src/builder/command.rs:2354:19
[INFO] [stdout]      |
[INFO] [stdout] 2354 |         #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]      = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]     --> src/builder/command.rs:5104:25
[INFO] [stdout]      |
[INFO] [stdout] 5104 |                 || cfg!(feature = "unstable-v4")
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]      = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/possible_value.rs:156:11
[INFO] [stdout]     |
[INFO] [stdout] 156 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:164:19
[INFO] [stdout]     |
[INFO] [stdout] 164 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:182:19
[INFO] [stdout]     |
[INFO] [stdout] 182 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:200:19
[INFO] [stdout]     |
[INFO] [stdout] 200 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:218:19
[INFO] [stdout]     |
[INFO] [stdout] 218 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:691:11
[INFO] [stdout]     |
[INFO] [stdout] 691 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/parser/arg_matcher.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/parser/arg_matcher.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/parser/parser.rs:432:25
[INFO] [stdout]     |
[INFO] [stdout] 432 |                 if cfg!(feature = "unstable-v4") || !raw_args.is_end(&args_cursor) {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]   --> src/parser/features/suggestions.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 | #[cfg(all(test, features = "suggestions"))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and value
[INFO] [stdout]    |
[INFO] [stdout] 75 - #[cfg(all(test, features = "suggestions"))]
[INFO] [stdout] 75 + #[cfg(all(test, feature = "suggestions"))]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |     #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |     #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/output/help.rs:480:15
[INFO] [stdout]     |
[INFO] [stdout] 480 |         #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/output/help.rs:666:21
[INFO] [stdout]     |
[INFO] [stdout] 666 |             || cfg!(feature = "unstable-v4")
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/builder/command.rs:4454:17
[INFO] [stdout]      |
[INFO] [stdout] 4454 |             for mut sc in &mut self.subcommands {
[INFO] [stdout]      |                 ----^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse` is never used
[INFO] [stdout]    --> src/builder/value_parser.rs:547:8
[INFO] [stdout]     |
[INFO] [stdout] 539 | trait AnyValueParser: Send + Sync + 'static {
[INFO] [stdout]     |       -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 547 |     fn parse(
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupedValues` is never constructed
[INFO] [stdout]     --> src/parser/matches/arg_matches.rs:1697:12
[INFO] [stdout]      |
[INFO] [stdout] 1697 | pub struct GroupedValues<'a> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/builder/arg.rs:5154:36
[INFO] [stdout]      |
[INFO] [stdout] 5154 |     pub(crate) fn name_no_brackets(&self) -> Cow<str> {
[INFO] [stdout]      |                                    ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stdout]      |                                    |
[INFO] [stdout]      |                                    this lifetime flows to the output
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 5154 |     pub(crate) fn name_no_brackets(&self) -> Cow<'_, str> {
[INFO] [stdout]      |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/builder/command.rs:4574:25
[INFO] [stdout]      |
[INFO] [stdout] 4574 |     fn two_groups_of<F>(&self, condition: F) -> Option<(&ArgGroup, &ArgGroup)>
[INFO] [stdout]      |                         ^^^^^                           ---------  ---------
[INFO] [stdout]      |                         |                               ||         ||
[INFO] [stdout]      |                         |                               ||         |the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         |                               ||         the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         |                               |the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         |                               the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         this lifetime flows to the output
[INFO] [stdout]      |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 4574 |     fn two_groups_of<F>(&self, condition: F) -> Option<(&ArgGroup<'_>, &ArgGroup<'_>)>
[INFO] [stdout]      |                                                                  ++++           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/error/mod.rs:1088:18
[INFO] [stdout]      |
[INFO] [stdout] 1088 |     fn formatted(&self) -> Cow<Colorizer> {
[INFO] [stdout]      |                  ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]      |                  |
[INFO] [stdout]      |                  this lifetime flows to the output
[INFO] [stdout]      |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 1088 |     fn formatted(&self) -> Cow<'_, Colorizer> {
[INFO] [stdout]      |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/arg_matcher.rs:119:27
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub(crate) fn arg_ids(&self) -> indexmap::map::Keys<Id, MatchedArg> {
[INFO] [stdout]     |                           ^^^^^     ----------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub(crate) fn arg_ids(&self) -> indexmap::map::Keys<'_, Id, MatchedArg> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/arg_matcher.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub(crate) fn entry(&mut self, arg: &Id) -> indexmap::map::Entry<Id, MatchedArg> {
[INFO] [stdout]     |                         ^^^^^^^^^               ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub(crate) fn entry(&mut self, arg: &Id) -> indexmap::map::Entry<'_, Id, MatchedArg> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/arg_matcher.rs:135:24
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub(crate) fn iter(&self) -> indexmap::map::Iter<Id, MatchedArg> {
[INFO] [stdout]     |                        ^^^^^     ----------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub(crate) fn iter(&self) -> indexmap::map::Iter<'_, Id, MatchedArg> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/arg_matches.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] 221 |         id: &str,
[INFO] [stdout] 222 |     ) -> Option<ValuesRef<T>> {
[INFO] [stdout]     |                 ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 222 |     ) -> Option<ValuesRef<'_, T>> {
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/arg_matches.rs:480:30
[INFO] [stdout]     |
[INFO] [stdout] 480 |     pub fn values_of<T: Key>(&self, id: T) -> Option<Values> {
[INFO] [stdout]     |                              ^^^^^                   ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 480 |     pub fn values_of<T: Key>(&self, id: T) -> Option<Values<'_>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/arg_matches.rs:558:33
[INFO] [stdout]     |
[INFO] [stdout] 558 |     pub fn values_of_os<T: Key>(&self, id: T) -> Option<OsValues> {
[INFO] [stdout]     |                                 ^^^^^                   -------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 558 |     pub fn values_of_os<T: Key>(&self, id: T) -> Option<OsValues<'_>> {
[INFO] [stdout]     |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/parser/matches/arg_matches.rs:1244:9
[INFO] [stdout]      |
[INFO] [stdout] 1244 |         &self,
[INFO] [stdout]      |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] 1245 |         id: &str,
[INFO] [stdout] 1246 |     ) -> Result<Option<ValuesRef<T>>, MatchesError> {
[INFO] [stdout]      |                        ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]      |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 1246 |     ) -> Result<Option<ValuesRef<'_, T>>, MatchesError> {
[INFO] [stdout]      |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/matched_arg.rs:102:32
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn vals_flatten(&self) -> Flatten<Iter<Vec<AnyValue>>> {
[INFO] [stdout]     |                                ^^^^^             ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn vals_flatten(&self) -> Flatten<Iter<'_, Vec<AnyValue>>> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/matched_arg.rs:110:36
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn raw_vals_flatten(&self) -> Flatten<Iter<Vec<OsString>>> {
[INFO] [stdout]     |                                    ^^^^^             ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn raw_vals_flatten(&self) -> Flatten<Iter<'_, Vec<OsString>>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:154:7
[INFO] [stdout]     |
[INFO] [stdout] 154 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:156:7
[INFO] [stdout]     |
[INFO] [stdout] 156 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:158:7
[INFO] [stdout]     |
[INFO] [stdout] 158 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:160:7
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-doc`
[INFO] [stdout]    --> src/lib.rs:162:7
[INFO] [stdout]     |
[INFO] [stdout] 162 | #[cfg(feature = "unstable-doc")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-doc` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/arg.rs:219:15
[INFO] [stdout]     |
[INFO] [stdout] 219 |         #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/arg.rs:223:19
[INFO] [stdout]     |
[INFO] [stdout] 223 |         #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]     --> src/builder/command.rs:2350:15
[INFO] [stdout]      |
[INFO] [stdout] 2350 |         #[cfg(feature = "unstable-v4")]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]      = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]     --> src/builder/command.rs:2354:19
[INFO] [stdout]      |
[INFO] [stdout] 2354 |         #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]      = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]     --> src/builder/command.rs:5104:25
[INFO] [stdout]      |
[INFO] [stdout] 5104 |                 || cfg!(feature = "unstable-v4")
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]      = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/possible_value.rs:156:11
[INFO] [stdout]     |
[INFO] [stdout] 156 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/builder/debug_asserts.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:164:19
[INFO] [stdout]     |
[INFO] [stdout] 164 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:182:19
[INFO] [stdout]     |
[INFO] [stdout] 182 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:200:19
[INFO] [stdout]     |
[INFO] [stdout] 200 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:218:19
[INFO] [stdout]     |
[INFO] [stdout] 218 |             #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/builder/debug_asserts.rs:691:11
[INFO] [stdout]     |
[INFO] [stdout] 691 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/parser/arg_matcher.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/parser/arg_matcher.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/parser/parser.rs:432:25
[INFO] [stdout]     |
[INFO] [stdout] 432 |                 if cfg!(feature = "unstable-v4") || !raw_args.is_end(&args_cursor) {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]   --> src/parser/features/suggestions.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 | #[cfg(all(test, features = "suggestions"))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and value
[INFO] [stdout]    |
[INFO] [stdout] 75 - #[cfg(all(test, features = "suggestions"))]
[INFO] [stdout] 75 + #[cfg(all(test, feature = "suggestions"))]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |     #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 |     #[cfg(feature = "unstable-v4")]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]   --> src/output/help.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |     #[cfg(not(feature = "unstable-v4"))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]    = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/output/help.rs:480:15
[INFO] [stdout]     |
[INFO] [stdout] 480 |         #[cfg(feature = "unstable-v4")]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable-v4`
[INFO] [stdout]    --> src/output/help.rs:666:21
[INFO] [stdout]     |
[INFO] [stdout] 666 |             || cfg!(feature = "unstable-v4")
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `atty`, `backtrace`, `cargo`, `clap_derive`, `color`, `debug`, `default`, `deprecated`, `derive`, `env`, `regex`, `std`, `strsim`, `suggestions`, `termcolor`, `terminal_size`, `unicase`, `unicode`, `unstable-grouped`, `unstable-replace`, `wrap_help`, `yaml`, and `yaml-rust`
[INFO] [stdout]     = help: consider adding `unstable-v4` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/builder/command.rs:4454:17
[INFO] [stdout]      |
[INFO] [stdout] 4454 |             for mut sc in &mut self.subcommands {
[INFO] [stdout]      |                 ----^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse` is never used
[INFO] [stdout]    --> src/builder/value_parser.rs:547:8
[INFO] [stdout]     |
[INFO] [stdout] 539 | trait AnyValueParser: Send + Sync + 'static {
[INFO] [stdout]     |       -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 547 |     fn parse(
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupedValues` is never constructed
[INFO] [stdout]     --> src/parser/matches/arg_matches.rs:1697:12
[INFO] [stdout]      |
[INFO] [stdout] 1697 | pub struct GroupedValues<'a> {
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/builder/arg.rs:5154:36
[INFO] [stdout]      |
[INFO] [stdout] 5154 |     pub(crate) fn name_no_brackets(&self) -> Cow<str> {
[INFO] [stdout]      |                                    ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stdout]      |                                    |
[INFO] [stdout]      |                                    this lifetime flows to the output
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 5154 |     pub(crate) fn name_no_brackets(&self) -> Cow<'_, str> {
[INFO] [stdout]      |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/builder/command.rs:4574:25
[INFO] [stdout]      |
[INFO] [stdout] 4574 |     fn two_groups_of<F>(&self, condition: F) -> Option<(&ArgGroup, &ArgGroup)>
[INFO] [stdout]      |                         ^^^^^                           ---------  ---------
[INFO] [stdout]      |                         |                               ||         ||
[INFO] [stdout]      |                         |                               ||         |the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         |                               ||         the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         |                               |the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         |                               the lifetimes get resolved as `'_`
[INFO] [stdout]      |                         this lifetime flows to the output
[INFO] [stdout]      |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 4574 |     fn two_groups_of<F>(&self, condition: F) -> Option<(&ArgGroup<'_>, &ArgGroup<'_>)>
[INFO] [stdout]      |                                                                  ++++           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/error/mod.rs:1088:18
[INFO] [stdout]      |
[INFO] [stdout] 1088 |     fn formatted(&self) -> Cow<Colorizer> {
[INFO] [stdout]      |                  ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]      |                  |
[INFO] [stdout]      |                  this lifetime flows to the output
[INFO] [stdout]      |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 1088 |     fn formatted(&self) -> Cow<'_, Colorizer> {
[INFO] [stdout]      |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/arg_matcher.rs:119:27
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub(crate) fn arg_ids(&self) -> indexmap::map::Keys<Id, MatchedArg> {
[INFO] [stdout]     |                           ^^^^^     ----------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub(crate) fn arg_ids(&self) -> indexmap::map::Keys<'_, Id, MatchedArg> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/arg_matcher.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub(crate) fn entry(&mut self, arg: &Id) -> indexmap::map::Entry<Id, MatchedArg> {
[INFO] [stdout]     |                         ^^^^^^^^^               ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub(crate) fn entry(&mut self, arg: &Id) -> indexmap::map::Entry<'_, Id, MatchedArg> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/arg_matcher.rs:135:24
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub(crate) fn iter(&self) -> indexmap::map::Iter<Id, MatchedArg> {
[INFO] [stdout]     |                        ^^^^^     ----------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub(crate) fn iter(&self) -> indexmap::map::Iter<'_, Id, MatchedArg> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/arg_matches.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         &self,
[INFO] [stdout]     |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] 221 |         id: &str,
[INFO] [stdout] 222 |     ) -> Option<ValuesRef<T>> {
[INFO] [stdout]     |                 ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 222 |     ) -> Option<ValuesRef<'_, T>> {
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/arg_matches.rs:480:30
[INFO] [stdout]     |
[INFO] [stdout] 480 |     pub fn values_of<T: Key>(&self, id: T) -> Option<Values> {
[INFO] [stdout]     |                              ^^^^^                   ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 480 |     pub fn values_of<T: Key>(&self, id: T) -> Option<Values<'_>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/arg_matches.rs:558:33
[INFO] [stdout]     |
[INFO] [stdout] 558 |     pub fn values_of_os<T: Key>(&self, id: T) -> Option<OsValues> {
[INFO] [stdout]     |                                 ^^^^^                   -------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 558 |     pub fn values_of_os<T: Key>(&self, id: T) -> Option<OsValues<'_>> {
[INFO] [stdout]     |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> src/parser/matches/arg_matches.rs:1244:9
[INFO] [stdout]      |
[INFO] [stdout] 1244 |         &self,
[INFO] [stdout]      |         ^^^^^ this lifetime flows to the output
[INFO] [stdout] 1245 |         id: &str,
[INFO] [stdout] 1246 |     ) -> Result<Option<ValuesRef<T>>, MatchesError> {
[INFO] [stdout]      |                        ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]      |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]      |
[INFO] [stdout] 1246 |     ) -> Result<Option<ValuesRef<'_, T>>, MatchesError> {
[INFO] [stdout]      |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/matched_arg.rs:102:32
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn vals_flatten(&self) -> Flatten<Iter<Vec<AnyValue>>> {
[INFO] [stdout]     |                                ^^^^^             ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn vals_flatten(&self) -> Flatten<Iter<'_, Vec<AnyValue>>> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser/matches/matched_arg.rs:110:36
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn raw_vals_flatten(&self) -> Flatten<Iter<Vec<OsString>>> {
[INFO] [stdout]     |                                    ^^^^^             ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn raw_vals_flatten(&self) -> Flatten<Iter<'_, Vec<OsString>>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.89s
[INFO] running `Command { std: "docker" "inspect" "78bcef26381653e25856af7639fb99667e74caba7d13b9b2667ea2dfc6978cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78bcef26381653e25856af7639fb99667e74caba7d13b9b2667ea2dfc6978cfc", kill_on_drop: false }`
[INFO] [stdout] 78bcef26381653e25856af7639fb99667e74caba7d13b9b2667ea2dfc6978cfc
