[INFO] cloning repository https://github.com/echo724/leetcode-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/echo724/leetcode-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fecho724%2Fleetcode-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fecho724%2Fleetcode-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 259c2198baa9e2dbae00f4fef69231aaa81203c9
[INFO] checking echo724/leetcode-solutions against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fecho724%2Fleetcode-solutions" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/echo724/leetcode-solutions
[INFO] finished tweaking git repo https://github.com/echo724/leetcode-solutions
[INFO] tweaked toml for git repo https://github.com/echo724/leetcode-solutions written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/echo724/leetcode-solutions on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/echo724/leetcode-solutions 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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de4be28ae9b578b22e4a080e5a02b1632397ca4eafb326451396d2fe84bfb165
[INFO] running `Command { std: "docker" "start" "-a" "de4be28ae9b578b22e4a080e5a02b1632397ca4eafb326451396d2fe84bfb165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de4be28ae9b578b22e4a080e5a02b1632397ca4eafb326451396d2fe84bfb165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4be28ae9b578b22e4a080e5a02b1632397ca4eafb326451396d2fe84bfb165", kill_on_drop: false }`
[INFO] [stdout] de4be28ae9b578b22e4a080e5a02b1632397ca4eafb326451396d2fe84bfb165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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_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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 941851ed34f65041eefaf8c7f83cc7b40b7cdc9727ff8698c6c1153eb9d12244
[INFO] running `Command { std: "docker" "start" "-a" "941851ed34f65041eefaf8c7f83cc7b40b7cdc9727ff8698c6c1153eb9d12244", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 if ((i - min_index) > max) {
[INFO] [stdout]    |                    ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -                 if ((i - min_index) > max) {
[INFO] [stdout] 22 +                 if (i - min_index) > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CharIndices`
[INFO] [stdout]  --> src/reverse_integer_7.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::str::{CharIndices, FromStr};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 if ((i - min_index) > max) {
[INFO] [stdout]    |                    ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -                 if ((i - min_index) > max) {
[INFO] [stdout] 22 +                 if (i - min_index) > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CharIndices`
[INFO] [stdout]  --> src/reverse_integer_7.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::str::{CharIndices, FromStr};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |             if let Some((x, v)) = chars[min_index..i]
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 .find(|(x, value)| value == &v)
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col_num` is never read
[INFO] [stdout]   --> src/zigzag_conversion_6.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let mut col_num: i32 = 0;
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `length_of_longest_substring` is never used
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/reverse_integer_7.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `reverse` is never used
[INFO] [stdout]   --> src/reverse_integer_7.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn reverse(x: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/zigzag_conversion_6.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `convert` is never used
[INFO] [stdout]   --> src/zigzag_conversion_6.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn convert(s: String, num_rows: i32) -> String {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |             if let Some((x, v)) = chars[min_index..i]
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters_3.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 .find(|(x, value)| value == &v)
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col_num` is never read
[INFO] [stdout]   --> src/zigzag_conversion_6.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let mut col_num: i32 = 0;
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numRows` should have a snake case name
[INFO] [stdout]   --> src/zigzag_conversion_6.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let numRows = 3;
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `num_rows`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numRows` should have a snake case name
[INFO] [stdout]   --> src/zigzag_conversion_6.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let numRows = 4;
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `num_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numRows` should have a snake case name
[INFO] [stdout]   --> src/zigzag_conversion_6.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let numRows = 4;
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `num_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "941851ed34f65041eefaf8c7f83cc7b40b7cdc9727ff8698c6c1153eb9d12244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "941851ed34f65041eefaf8c7f83cc7b40b7cdc9727ff8698c6c1153eb9d12244", kill_on_drop: false }`
[INFO] [stdout] 941851ed34f65041eefaf8c7f83cc7b40b7cdc9727ff8698c6c1153eb9d12244