[INFO] cloning repository https://github.com/gihwan-dev/rust-algorithm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gihwan-dev/rust-algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgihwan-dev%2Frust-algorithm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgihwan-dev%2Frust-algorithm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bdc633e65bcf9c548c7bef446ae25891d8745c8
[INFO] testing gihwan-dev/rust-algorithm against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgihwan-dev%2Frust-algorithm" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gihwan-dev/rust-algorithm
[INFO] finished tweaking git repo https://github.com/gihwan-dev/rust-algorithm
[INFO] tweaked toml for git repo https://github.com/gihwan-dev/rust-algorithm written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gihwan-dev/rust-algorithm on toolchain b83b707f97d809763b7861afa7638871f3339a33
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[INFO] crate git repo https://github.com/gihwan-dev/rust-algorithm 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] fe7ec860aed938f022e7b342a0adc9cd52e090f49fbe5d87bd6ab0a7c19653ec
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[INFO] running `Command { std: "docker" "inspect" "fe7ec860aed938f022e7b342a0adc9cd52e090f49fbe5d87bd6ab0a7c19653ec", kill_on_drop: false }`
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[INFO] [stdout] fe7ec860aed938f022e7b342a0adc9cd52e090f49fbe5d87bd6ab0a7c19653ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 946fe4d1579062fcf7611f5883d4ebb7b150b3343515961df0c473e9c34a0c7a
[INFO] running `Command { std: "docker" "start" "-a" "946fe4d1579062fcf7611f5883d4ebb7b150b3343515961df0c473e9c34a0c7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering::{self, *};
[INFO] [stdout]   |                                ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/zig_zag_conversion.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `convert` is never used
[INFO] [stdout]  --> src/algorithms/zig_zag_conversion.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn convert(s: String, num_rows: i32) -> String {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `str_str` is never used
[INFO] [stdout]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn str_str(haystack: String, needle: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/text_justification.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `full_justify` is never used
[INFO] [stdout]  --> src/algorithms/text_justification.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn full_justify(words: Vec<String>, max_width: i32) -> Vec<String> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/valid_palindrome.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_palindrome` is never used
[INFO] [stdout]  --> src/algorithms/valid_palindrome.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn is_palindrome(s: String) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/is_subsequence.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_subsequence` is never used
[INFO] [stdout]  --> src/algorithms/is_subsequence.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/is_subsequence.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_subsequence` is never used
[INFO] [stdout]   --> src/algorithms/is_subsequence.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 34 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/container_with_most_water.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_area` is never used
[INFO] [stdout]  --> src/algorithms/container_with_most_water.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/container_with_most_water.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_area` is never used
[INFO] [stdout]   --> src/algorithms/container_with_most_water.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 30 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "946fe4d1579062fcf7611f5883d4ebb7b150b3343515961df0c473e9c34a0c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "946fe4d1579062fcf7611f5883d4ebb7b150b3343515961df0c473e9c34a0c7a", kill_on_drop: false }`
[INFO] [stdout] 946fe4d1579062fcf7611f5883d4ebb7b150b3343515961df0c473e9c34a0c7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9101877d605a1293a5dd7a7f7656659335ff9ce485e636aaaff3970fa1996a6e
[INFO] running `Command { std: "docker" "start" "-a" "9101877d605a1293a5dd7a7f7656659335ff9ce485e636aaaff3970fa1996a6e", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering::{self, *};
[INFO] [stdout]   |                                ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/zig_zag_conversion.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `convert` is never used
[INFO] [stdout]  --> src/algorithms/zig_zag_conversion.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn convert(s: String, num_rows: i32) -> String {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `str_str` is never used
[INFO] [stdout]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn str_str(haystack: String, needle: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/text_justification.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `full_justify` is never used
[INFO] [stdout]  --> src/algorithms/text_justification.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn full_justify(words: Vec<String>, max_width: i32) -> Vec<String> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/valid_palindrome.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_palindrome` is never used
[INFO] [stdout]  --> src/algorithms/valid_palindrome.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn is_palindrome(s: String) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/is_subsequence.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_subsequence` is never used
[INFO] [stdout]  --> src/algorithms/is_subsequence.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/is_subsequence.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_subsequence` is never used
[INFO] [stdout]   --> src/algorithms/is_subsequence.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 34 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/container_with_most_water.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_area` is never used
[INFO] [stdout]  --> src/algorithms/container_with_most_water.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/container_with_most_water.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_area` is never used
[INFO] [stdout]   --> src/algorithms/container_with_most_water.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 30 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering::{self, *};
[INFO] [stdout]   |                                ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `str_str` is never used
[INFO] [stdout]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn str_str(haystack: String, needle: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/text_justification.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `full_justify` is never used
[INFO] [stdout]  --> src/algorithms/text_justification.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn full_justify(words: Vec<String>, max_width: i32) -> Vec<String> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/is_subsequence.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_subsequence` is never used
[INFO] [stdout]   --> src/algorithms/is_subsequence.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 34 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/algorithms/container_with_most_water.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_area` is never used
[INFO] [stdout]  --> src/algorithms/container_with_most_water.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BestSolution` is never constructed
[INFO] [stdout]   --> src/algorithms/container_with_most_water.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct BestSolution {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_area` is never used
[INFO] [stdout]   --> src/algorithms/container_with_most_water.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl BestSolution {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 30 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "9101877d605a1293a5dd7a7f7656659335ff9ce485e636aaaff3970fa1996a6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9101877d605a1293a5dd7a7f7656659335ff9ce485e636aaaff3970fa1996a6e", kill_on_drop: false }`
[INFO] [stdout] 9101877d605a1293a5dd7a7f7656659335ff9ce485e636aaaff3970fa1996a6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b5408b8e7f574dcb514053449fcc0328096cb96a0777450badbde009ff9ceac
[INFO] running `Command { std: "docker" "start" "-a" "6b5408b8e7f574dcb514053449fcc0328096cb96a0777450badbde009ff9ceac", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `*`
[INFO] [stderr]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::Ordering::{self, *};
[INFO] [stderr]   |                                ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `numbers`
[INFO] [stderr]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/zig_zag_conversion.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `convert` is never used
[INFO] [stderr]  --> src/algorithms/zig_zag_conversion.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 4 |     pub fn convert(s: String, num_rows: i32) -> String {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `str_str` is never used
[INFO] [stderr]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 4 |     pub fn str_str(haystack: String, needle: String) -> i32 {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/text_justification.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `full_justify` is never used
[INFO] [stderr]  --> src/algorithms/text_justification.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 4 |     pub fn full_justify(words: Vec<String>, max_width: i32) -> Vec<String> {
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/valid_palindrome.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `is_palindrome` is never used
[INFO] [stderr]  --> src/algorithms/valid_palindrome.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 4 |     pub fn is_palindrome(s: String) -> bool {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/is_subsequence.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `is_subsequence` is never used
[INFO] [stderr]  --> src/algorithms/is_subsequence.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 4 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BestSolution` is never constructed
[INFO] [stderr]   --> src/algorithms/is_subsequence.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | struct BestSolution {}
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `is_subsequence` is never used
[INFO] [stderr]   --> src/algorithms/is_subsequence.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 33 | impl BestSolution {
[INFO] [stderr]    | ----------------- associated function in this implementation
[INFO] [stderr] 34 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `two_sum` is never used
[INFO] [stderr]  --> src/algorithms/two_sum_2_input_array_is_sorted.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 6 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BestSolution` is never constructed
[INFO] [stderr]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct BestSolution {}
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `two_sum` is never used
[INFO] [stderr]   --> src/algorithms/two_sum_2_input_array_is_sorted.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | impl BestSolution {
[INFO] [stderr]    | ----------------- associated function in this implementation
[INFO] [stderr] 26 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/container_with_most_water.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `max_area` is never used
[INFO] [stderr]  --> src/algorithms/container_with_most_water.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | impl Solution {
[INFO] [stderr]   | ------------- associated function in this implementation
[INFO] [stderr] 6 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BestSolution` is never constructed
[INFO] [stderr]   --> src/algorithms/container_with_most_water.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct BestSolution {}
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `max_area` is never used
[INFO] [stderr]   --> src/algorithms/container_with_most_water.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | impl BestSolution {
[INFO] [stderr]    | ----------------- associated function in this implementation
[INFO] [stderr] 30 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `algorithms` (lib) generated 22 warnings (run `cargo fix --lib -p algorithms` to apply 1 suggestion)
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> src/algorithms/find_index_of_the_first_occurrence_in_a_string.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `algorithms` (lib test) generated 14 warnings (13 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/algorithms-709b88c3ffbb16d4)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test algorithms::two_sum_2_input_array_is_sorted::test_case_1 ... ok
[INFO] [stdout] test algorithms::zig_zag_conversion::test_zig_zag_conversion ... ok
[INFO] [stdout] test algorithms::valid_palindrome::test_case_1 ... ok
[INFO] [stdout] test algorithms::is_subsequence::test_case_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/algorithms-f83047c9d6d15fe9)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algorithms
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b5408b8e7f574dcb514053449fcc0328096cb96a0777450badbde009ff9ceac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5408b8e7f574dcb514053449fcc0328096cb96a0777450badbde009ff9ceac", kill_on_drop: false }`
[INFO] [stdout] 6b5408b8e7f574dcb514053449fcc0328096cb96a0777450badbde009ff9ceac