[INFO] crate ipfs-api 0.5.0-alpha2 is already in cache
[INFO] extracting crate ipfs-api 0.5.0-alpha2 into work/ex/clippy-test-run/sources/stable/reg/ipfs-api/0.5.0-alpha2
[INFO] extracting crate ipfs-api 0.5.0-alpha2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ipfs-api/0.5.0-alpha2
[INFO] validating manifest of ipfs-api-0.5.0-alpha2 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ipfs-api-0.5.0-alpha2 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ipfs-api-0.5.0-alpha2
[INFO] finished frobbing ipfs-api-0.5.0-alpha2
[INFO] frobbed toml for ipfs-api-0.5.0-alpha2 written to work/ex/clippy-test-run/sources/stable/reg/ipfs-api/0.5.0-alpha2/Cargo.toml
[INFO] started frobbing ipfs-api-0.5.0-alpha2
[INFO] finished frobbing ipfs-api-0.5.0-alpha2
[INFO] frobbed toml for ipfs-api-0.5.0-alpha2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ipfs-api/0.5.0-alpha2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting ipfs-api-0.5.0-alpha2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/ipfs-api/0.5.0-alpha2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fb9bc5a8ce1f9ae59e01ef0500f6d00b64c4df702b51a565fd69392fc662c47e
[INFO] running `"docker" "start" "-a" "fb9bc5a8ce1f9ae59e01ef0500f6d00b64c4df702b51a565fd69392fc662c47e"`
[INFO] [stderr]     Checking hyper-multipart-rfc7578 v0.2.0-alpha2
[INFO] [stderr]     Checking ipfs-api v0.5.0-alpha2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |             stream: stream,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `stream`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |             stream: stream,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `stream`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DagPut`
[INFO] [stderr]   --> src/request/dag.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct DagPut;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/client.rs:108:22
[INFO] [stderr]     |
[INFO] [stderr] 108 |             Ok(e) => Error::Api(e).into(),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error::Api(e)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/client.rs:110:26
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 Ok(s) => Error::Uncategorized(s).into(),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error::Uncategorized(s)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/client.rs:310:54
[INFO] [stderr]     |
[INFO] [stderr] 310 |                     return Box::new(stream::once(Err(err.into())));
[INFO] [stderr]     |                                                      ^^^^^^^^^^ help: consider removing `.into()`: `err`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/read.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 |                                 Err(e.into())
[INFO] [stderr]    |                                     ^^^^^^^^ help: consider removing `.into()`: `e`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/key.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 24 | |             &KeyType::Rsa => "rsa",
[INFO] [stderr] 25 | |             &KeyType::Ed25519 => "ed25519",
[INFO] [stderr] 26 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let s = match *self {
[INFO] [stderr] 24 |             KeyType::Rsa => "rsa",
[INFO] [stderr] 25 |             KeyType::Ed25519 => "ed25519",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/log.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 28 | |             &LoggingLevel::Debug => "debug",
[INFO] [stderr] 29 | |             &LoggingLevel::Info => "info",
[INFO] [stderr] 30 | |             &LoggingLevel::Warning => "warning",
[INFO] [stderr] 31 | |             &LoggingLevel::Error => "error",
[INFO] [stderr] 32 | |             &LoggingLevel::Critical => "critical",
[INFO] [stderr] 33 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let s = match *self {
[INFO] [stderr] 28 |             LoggingLevel::Debug => "debug",
[INFO] [stderr] 29 |             LoggingLevel::Info => "info",
[INFO] [stderr] 30 |             LoggingLevel::Warning => "warning",
[INFO] [stderr] 31 |             LoggingLevel::Error => "error",
[INFO] [stderr] 32 |             LoggingLevel::Critical => "critical",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/log.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 50 | |             &Logger::All => "*",
[INFO] [stderr] 51 | |             &Logger::Specific(ref logger) => logger.as_ref(),
[INFO] [stderr] 52 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let s = match *self {
[INFO] [stderr] 50 |             Logger::All => "*",
[INFO] [stderr] 51 |             Logger::Specific(ref logger) => logger.as_ref(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/object.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 66 | |             &ObjectTemplate::UnixFsDir => "unixfs-dir",
[INFO] [stderr] 67 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let s = match *self {
[INFO] [stderr] 66 |             ObjectTemplate::UnixFsDir => "unixfs-dir",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DagPut`
[INFO] [stderr]   --> src/request/dag.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct DagPut;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/client.rs:108:22
[INFO] [stderr]     |
[INFO] [stderr] 108 |             Ok(e) => Error::Api(e).into(),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error::Api(e)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/client.rs:110:26
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 Ok(s) => Error::Uncategorized(s).into(),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `Error::Uncategorized(s)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/client.rs:310:54
[INFO] [stderr]     |
[INFO] [stderr] 310 |                     return Box::new(stream::once(Err(err.into())));
[INFO] [stderr]     |                                                      ^^^^^^^^^^ help: consider removing `.into()`: `err`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/read.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 |                                 Err(e.into())
[INFO] [stderr]    |                                     ^^^^^^^^ help: consider removing `.into()`: `e`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/key.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 24 | |             &KeyType::Rsa => "rsa",
[INFO] [stderr] 25 | |             &KeyType::Ed25519 => "ed25519",
[INFO] [stderr] 26 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let s = match *self {
[INFO] [stderr] 24 |             KeyType::Rsa => "rsa",
[INFO] [stderr] 25 |             KeyType::Ed25519 => "ed25519",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/log.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 28 | |             &LoggingLevel::Debug => "debug",
[INFO] [stderr] 29 | |             &LoggingLevel::Info => "info",
[INFO] [stderr] 30 | |             &LoggingLevel::Warning => "warning",
[INFO] [stderr] 31 | |             &LoggingLevel::Error => "error",
[INFO] [stderr] 32 | |             &LoggingLevel::Critical => "critical",
[INFO] [stderr] 33 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let s = match *self {
[INFO] [stderr] 28 |             LoggingLevel::Debug => "debug",
[INFO] [stderr] 29 |             LoggingLevel::Info => "info",
[INFO] [stderr] 30 |             LoggingLevel::Warning => "warning",
[INFO] [stderr] 31 |             LoggingLevel::Error => "error",
[INFO] [stderr] 32 |             LoggingLevel::Critical => "critical",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/log.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 50 | |             &Logger::All => "*",
[INFO] [stderr] 51 | |             &Logger::Specific(ref logger) => logger.as_ref(),
[INFO] [stderr] 52 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let s = match *self {
[INFO] [stderr] 50 |             Logger::All => "*",
[INFO] [stderr] 51 |             Logger::Specific(ref logger) => logger.as_ref(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/request/object.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |           let s = match self {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 66 | |             &ObjectTemplate::UnixFsDir => "unixfs-dir",
[INFO] [stderr] 67 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let s = match *self {
[INFO] [stderr] 66 |             ObjectTemplate::UnixFsDir => "unixfs-dir",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change
[INFO] [stderr]   --> src/response/serde.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |         Ok(num as i64)
[INFO] [stderr]    |            ^^^^^^^^^^ help: try: `i64::from(num)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> examples/get_commands.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 |     if cmd.options.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!cmd.options.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> examples/get_commands.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 |     if cmd.subcommands.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!cmd.subcommands.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.36s
[INFO] running `"docker" "inspect" "fb9bc5a8ce1f9ae59e01ef0500f6d00b64c4df702b51a565fd69392fc662c47e"`
[INFO] running `"docker" "rm" "-f" "fb9bc5a8ce1f9ae59e01ef0500f6d00b64c4df702b51a565fd69392fc662c47e"`
[INFO] [stdout] fb9bc5a8ce1f9ae59e01ef0500f6d00b64c4df702b51a565fd69392fc662c47e