[INFO] cloning repository https://github.com/giwan-dev/leetcode-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/giwan-dev/leetcode-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiwan-dev%2Fleetcode-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiwan-dev%2Fleetcode-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96dbaca150a4e85a799e331b1448585e3faf40a8
[INFO] linting giwan-dev/leetcode-rs against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiwan-dev%2Fleetcode-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/giwan-dev/leetcode-rs
[INFO] finished tweaking git repo https://github.com/giwan-dev/leetcode-rs
[INFO] tweaked toml for git repo https://github.com/giwan-dev/leetcode-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/giwan-dev/leetcode-rs on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/giwan-dev/leetcode-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef3520416257a3557e1f356cba24379c7ccef43472f2e3902697af67f0a4ec44
[INFO] running `Command { std: "docker" "start" "-a" "ef3520416257a3557e1f356cba24379c7ccef43472f2e3902697af67f0a4ec44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef3520416257a3557e1f356cba24379c7ccef43472f2e3902697af67f0a4ec44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef3520416257a3557e1f356cba24379c7ccef43472f2e3902697af67f0a4ec44", kill_on_drop: false }`
[INFO] [stdout] ef3520416257a3557e1f356cba24379c7ccef43472f2e3902697af67f0a4ec44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb09272bad77dbedb9cdc5a5b649149036424a4633827cf44620ec308ef61a75
[INFO] running `Command { std: "docker" "start" "-a" "eb09272bad77dbedb9cdc5a5b649149036424a4633827cf44620ec308ef61a75", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `from_number` and `to_number` are never used
[INFO] [stdout]   --> src/add_two_numbers.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl ListNode {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn from_number(num: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn to_number(self) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference
[INFO] [stdout]   --> src/add_two_numbers.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn to_number(self) -> i32 {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider choosing a less ambiguous name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stdout]    = note: `#[warn(clippy::wrong_self_convention)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/add_two_numbers.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 |     while !l1.is_none() || !l2.is_none() {
[INFO] [stdout]    |           ^^^^^^^^^^^^^ help: try: `l1.is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/add_two_numbers.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     while !l1.is_none() || !l2.is_none() {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^ help: try: `l2.is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `map_or(None, ..)` on an `Option` value
[INFO] [stdout]   --> src/add_two_numbers.rs:64:14
[INFO] [stdout]    |
[INFO] [stdout] 64 |         l1 = l1.map_or(None, |node| node.next);
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `and_then`: `l1.and_then(|node| node.next)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_or_none
[INFO] [stdout]    = note: `#[warn(clippy::option_map_or_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `map_or(None, ..)` on an `Option` value
[INFO] [stdout]   --> src/add_two_numbers.rs:65:14
[INFO] [stdout]    |
[INFO] [stdout] 65 |         l2 = l2.map_or(None, |node| node.next);
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `and_then`: `l2.and_then(|node| node.next)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_or_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]   --> src/add_two_numbers.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let digit = result.pop().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout]    = note: `#[warn(clippy::manual_while_let_some)]` on by default
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]    |
[INFO] [stdout] 73 ~     while let Some(digit) = result.pop() {
[INFO] [stdout] 74 ~         
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/median_of_two_sorted_arrays.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     if length % 2 == 0 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: replace with: `length.is_multiple_of(2)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `i32` which implements the `Copy` trait
[INFO] [stdout]   --> src/two_sum.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |             table.insert(num.clone(), indices);
[INFO] [stdout]    |                          ^^^^^^^^^^^ help: try dereferencing it: `*num`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/two_sum.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if indices.len() > 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!indices.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference
[INFO] [stdout]   --> src/add_two_numbers.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn to_number(self) -> i32 {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider choosing a less ambiguous name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stdout]    = note: `#[warn(clippy::wrong_self_convention)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/add_two_numbers.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 |     while !l1.is_none() || !l2.is_none() {
[INFO] [stdout]    |           ^^^^^^^^^^^^^ help: try: `l1.is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/add_two_numbers.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     while !l1.is_none() || !l2.is_none() {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^ help: try: `l2.is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `map_or(None, ..)` on an `Option` value
[INFO] [stdout]   --> src/add_two_numbers.rs:64:14
[INFO] [stdout]    |
[INFO] [stdout] 64 |         l1 = l1.map_or(None, |node| node.next);
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `and_then`: `l1.and_then(|node| node.next)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_or_none
[INFO] [stdout]    = note: `#[warn(clippy::option_map_or_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `map_or(None, ..)` on an `Option` value
[INFO] [stdout]   --> src/add_two_numbers.rs:65:14
[INFO] [stdout]    |
[INFO] [stdout] 65 |         l2 = l2.map_or(None, |node| node.next);
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `and_then`: `l2.and_then(|node| node.next)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_or_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]   --> src/add_two_numbers.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let digit = result.pop().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout]    = note: `#[warn(clippy::manual_while_let_some)]` on by default
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]    |
[INFO] [stdout] 73 ~     while let Some(digit) = result.pop() {
[INFO] [stdout] 74 ~         
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/median_of_two_sorted_arrays.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     if length % 2 == 0 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: replace with: `length.is_multiple_of(2)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/search_in_rotated_sorted_array_ii.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     assert_eq!(search(vec![2, 5, 6, 0, 0, 1, 2], 0), true);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     assert_eq!(search(vec![2, 5, 6, 0, 0, 1, 2], 0), true);
[INFO] [stdout] 47 +     assert!(search(vec![2, 5, 6, 0, 0, 1, 2], 0));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/search_in_rotated_sorted_array_ii.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(search(vec![2, 5, 6, 0, 0, 1, 2], 3), false);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 48 -     assert_eq!(search(vec![2, 5, 6, 0, 0, 1, 2], 3), false);
[INFO] [stdout] 48 +     assert!(!search(vec![2, 5, 6, 0, 0, 1, 2], 3));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/search_in_rotated_sorted_array_ii.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     assert_eq!(search(vec![1], 0), false);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 49 -     assert_eq!(search(vec![1], 0), false);
[INFO] [stdout] 49 +     assert!(!search(vec![1], 0));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/search_in_rotated_sorted_array_ii.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     assert_eq!(search(vec![1], 2), false);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     assert_eq!(search(vec![1], 2), false);
[INFO] [stdout] 50 +     assert!(!search(vec![1], 2));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/search_in_rotated_sorted_array_ii.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     assert_eq!(search(vec![1, 1], 0), false);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 51 -     assert_eq!(search(vec![1, 1], 0), false);
[INFO] [stdout] 51 +     assert!(!search(vec![1, 1], 0));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `i32` which implements the `Copy` trait
[INFO] [stdout]   --> src/two_sum.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |             table.insert(num.clone(), indices);
[INFO] [stdout]    |                          ^^^^^^^^^^^ help: try dereferencing it: `*num`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/two_sum.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if indices.len() > 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!indices.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "eb09272bad77dbedb9cdc5a5b649149036424a4633827cf44620ec308ef61a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb09272bad77dbedb9cdc5a5b649149036424a4633827cf44620ec308ef61a75", kill_on_drop: false }`
[INFO] [stdout] eb09272bad77dbedb9cdc5a5b649149036424a4633827cf44620ec308ef61a75