[INFO] cloning repository https://github.com/chux0519/leetcode-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chux0519/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchux0519%2Fleetcode-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchux0519%2Fleetcode-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8814290fe1967f9f77e673e9150d89265666e170
[INFO] checking chux0519/leetcode-rust against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchux0519%2Fleetcode-rust" "/workspace/builds/worker-91/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-91/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chux0519/leetcode-rust on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chux0519/leetcode-rust
[INFO] finished tweaking git repo https://github.com/chux0519/leetcode-rust
[INFO] tweaked toml for git repo https://github.com/chux0519/leetcode-rust written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate git repo https://github.com/chux0519/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b67d395fb9ab880c55a13e19a92c1ffc98e5419d66c36b44ff6f4b7b0674ccf
[INFO] running `Command { std: "docker" "start" "-a" "9b67d395fb9ab880c55a13e19a92c1ffc98e5419d66c36b44ff6f4b7b0674ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b67d395fb9ab880c55a13e19a92c1ffc98e5419d66c36b44ff6f4b7b0674ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b67d395fb9ab880c55a13e19a92c1ffc98e5419d66c36b44ff6f4b7b0674ccf", kill_on_drop: false }`
[INFO] [stdout] 9b67d395fb9ab880c55a13e19a92c1ffc98e5419d66c36b44ff6f4b7b0674ccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 997976a61dc1f49c2360a5a7e362caa01f033470b96d2160c7a4c4cc07f432db
[INFO] running `Command { std: "docker" "start" "-a" "997976a61dc1f49c2360a5a7e362caa01f033470b96d2160c7a4c4cc07f432db", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking leetcode-rust v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/q048_rotate_image.rs (1 fix)
[INFO] [stderr]        Fixed src/q067_add_binary.rs (1 fix)
[INFO] [stderr]        Fixed src/q101_symmetric_tree.rs (1 fix)
[INFO] [stderr]        Fixed src/q1052_grumpy_bookstore_owner.rs (1 fix)
[INFO] [stderr]        Fixed src/q110_balanced_binary_tree.rs (1 fix)
[INFO] [stderr]        Fixed src/q042_trapping_rain_water.rs (1 fix)
[INFO] [stdout] warning: value assigned to `prev` is never read
[INFO] [stdout]   --> src/q025_reverse_nodes_in_k_group.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let mut prev = None::<Box<ListNode>>;
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pos_2` is never read
[INFO] [stdout]  --> src/q043_multiply_strings.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut pos_2 = 0;
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_left` is never read
[INFO] [stdout]  --> src/q048_rotate_image.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut top_left = (0, 0);
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut top_right = (0, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_left` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut bottom_left = (n - 1, 0);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bottom_right = (n - 1, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut tmp = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_a` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bit_a = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_b` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut bit_b = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sum` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut sum = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `num` is never read
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 let mut num = 0;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `toString` should have a snake case name
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn toString(str: &[u8]) -> String {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `to_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/q1054_distant_barcodes.rs (1 fix)
[INFO] [stdout] warning: value assigned to `prev` is never read
[INFO] [stdout]   --> src/q025_reverse_nodes_in_k_group.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let mut prev = None::<Box<ListNode>>;
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pos_2` is never read
[INFO] [stdout]  --> src/q043_multiply_strings.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut pos_2 = 0;
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_left` is never read
[INFO] [stdout]  --> src/q048_rotate_image.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut top_left = (0, 0);
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut top_right = (0, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_left` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut bottom_left = (n - 1, 0);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bottom_right = (n - 1, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut tmp = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_a` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bit_a = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_b` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut bit_b = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sum` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut sum = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `num` is never read
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 let mut num = 0;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `toString` should have a snake case name
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn toString(str: &[u8]) -> String {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `to_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.66s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking leetcode-rust v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: value assigned to `prev` is never read
[INFO] [stdout]   --> src/q025_reverse_nodes_in_k_group.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let mut prev = None::<Box<ListNode>>;
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pos_2` is never read
[INFO] [stdout]  --> src/q043_multiply_strings.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut pos_2 = 0;
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_left` is never read
[INFO] [stdout]  --> src/q048_rotate_image.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut top_left = (0, 0);
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut top_right = (0, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_left` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut bottom_left = (n - 1, 0);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bottom_right = (n - 1, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut tmp = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_a` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bit_a = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_b` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut bit_b = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sum` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut sum = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `num` is never read
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 let mut num = 0;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `toString` should have a snake case name
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn toString(str: &[u8]) -> String {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `to_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `prev` is never read
[INFO] [stdout]   --> src/q025_reverse_nodes_in_k_group.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let mut prev = None::<Box<ListNode>>;
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pos_2` is never read
[INFO] [stdout]  --> src/q043_multiply_strings.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut pos_2 = 0;
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_left` is never read
[INFO] [stdout]  --> src/q048_rotate_image.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut top_left = (0, 0);
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut top_right = (0, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_left` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let mut bottom_left = (n - 1, 0);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bottom_right` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bottom_right = (n - 1, n - 1);
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp` is never read
[INFO] [stdout]   --> src/q048_rotate_image.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut tmp = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_a` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut bit_a = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bit_b` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut bit_b = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sum` is never read
[INFO] [stdout]   --> src/q067_add_binary.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut sum = 0;
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `num` is never read
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 let mut num = 0;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `toString` should have a snake case name
[INFO] [stdout]   --> src/q1048_longest_string_chain.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn toString(str: &[u8]) -> String {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `to_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "997976a61dc1f49c2360a5a7e362caa01f033470b96d2160c7a4c4cc07f432db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997976a61dc1f49c2360a5a7e362caa01f033470b96d2160c7a4c4cc07f432db", kill_on_drop: false }`
[INFO] [stdout] 997976a61dc1f49c2360a5a7e362caa01f033470b96d2160c7a4c4cc07f432db