[INFO] cloning repository https://github.com/openguild-labs/open-hack-rust-starter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/openguild-labs/open-hack-rust-starter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopenguild-labs%2Fopen-hack-rust-starter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopenguild-labs%2Fopen-hack-rust-starter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66e3b1d1516b239f52a6049498bf4fe068f25959
[INFO] building openguild-labs/open-hack-rust-starter against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopenguild-labs%2Fopen-hack-rust-starter" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/openguild-labs/open-hack-rust-starter
[INFO] finished tweaking git repo https://github.com/openguild-labs/open-hack-rust-starter
[INFO] tweaked toml for git repo https://github.com/openguild-labs/open-hack-rust-starter written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/openguild-labs/open-hack-rust-starter on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/openguild-labs/open-hack-rust-starter 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f9ec7c7b9d02fcccc470cd65e65b4648003c263a61b3c2f8e90c9a0dbffe670
[INFO] running `Command { std: "docker" "start" "-a" "3f9ec7c7b9d02fcccc470cd65e65b4648003c263a61b3c2f8e90c9a0dbffe670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f9ec7c7b9d02fcccc470cd65e65b4648003c263a61b3c2f8e90c9a0dbffe670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f9ec7c7b9d02fcccc470cd65e65b4648003c263a61b3c2f8e90c9a0dbffe670", kill_on_drop: false }`
[INFO] [stdout] 3f9ec7c7b9d02fcccc470cd65e65b4648003c263a61b3c2f8e90c9a0dbffe670
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ad466a3165a28c29b4db4f26f3e9cb8a47715d691d4e4020335d36d6ea95a86
[INFO] running `Command { std: "docker" "start" "-a" "4ad466a3165a28c29b4db4f26f3e9cb8a47715d691d4e4020335d36d6ea95a86", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling open-hack-rust-starter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::solutions`
[INFO] [stdout]  --> src/advanced/benchmark.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::solutions;
[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 imports: `get_time` and `timeit`
[INFO] [stdout]  --> src/advanced/benchmark.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::utils::{get_time, timeit};
[INFO] [stdout]   |                    ^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/basic/answers/two_sum/github_lamdanghoang.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phusy2001.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/advanced/utils.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let result = f();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_measurement` are never used
[INFO] [stdout]   --> src/advanced/model.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl WeatherData {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn add_measurement(&mut self, measurement: f64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `github_anhpham_solution` is never used
[INFO] [stdout]   --> src/advanced/solutions/github_anhpham.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn github_anhpham_solution(reader: BufReader<File>, station_data: &mut HashMap<String, WeatherData>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `github_lamdanghoang_solution` is never used
[INFO] [stdout]   --> src/advanced/solutions/github_lamdanghoang.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn github_lamdanghoang_solution(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `template_solution` is never used
[INFO] [stdout]  --> src/advanced/solutions/template.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn template_solution(reader: BufReader<File>, station_data: &mut HashMap<String, WeatherData>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `timeit` is never used
[INFO] [stdout]  --> src/advanced/utils.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn timeit<F: Fn() -> T, T>(name: &'static str, f: F) -> T {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_time` is never used
[INFO] [stdout]   --> src/advanced/utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_time<F: Fn() -> T, T>(name: &'static str, f: F) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_HuyDNA.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_anhpham.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_congnghiakhiem.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_lamdanghoang.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_ngyngcphu.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_nvtuanqti212.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_phapdev.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_phusy2001.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_zrus.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `github_HuyDNA` should have a snake case name
[INFO] [stdout]  --> src/basic/answers/two_sum/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod github_HuyDNA;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: convert the identifier to snake case: `github_huy_dna`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `github_HuyDNA` should have a snake case name
[INFO] [stdout]  --> src/basic/answers/hello_world/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod github_HuyDNA;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: convert the identifier to snake case: `github_huy_dna`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phusy2001.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phusy2001.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_zrus.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_zrus.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 5 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_HuyDNA.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_HuyDNA.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 5 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/hello_world.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/two_sum.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_anhpham.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_anhpham.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_ngyngcphu.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_ngyngcphu.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_lamdanghoang.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_lamdanghoang.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/two_sum.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_nvtuanqti212.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_nvtuanqti212.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phapdev.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phapdev.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "4ad466a3165a28c29b4db4f26f3e9cb8a47715d691d4e4020335d36d6ea95a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ad466a3165a28c29b4db4f26f3e9cb8a47715d691d4e4020335d36d6ea95a86", kill_on_drop: false }`
[INFO] [stdout] 4ad466a3165a28c29b4db4f26f3e9cb8a47715d691d4e4020335d36d6ea95a86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7102276e13b260b414a154091616867043563efce42a804911a9e9f9c00e50b9
[INFO] running `Command { std: "docker" "start" "-a" "7102276e13b260b414a154091616867043563efce42a804911a9e9f9c00e50b9", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `super::solutions`
[INFO] [stdout]  --> src/advanced/benchmark.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::solutions;
[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 imports: `get_time` and `timeit`
[INFO] [stdout]  --> src/advanced/benchmark.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::utils::{get_time, timeit};
[INFO] [stdout]   |                    ^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/basic/answers/two_sum/github_lamdanghoang.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phusy2001.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/advanced/utils.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let result = f();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_measurement` are never used
[INFO] [stdout]   --> src/advanced/model.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl WeatherData {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn add_measurement(&mut self, measurement: f64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `github_anhpham_solution` is never used
[INFO] [stdout]   --> src/advanced/solutions/github_anhpham.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn github_anhpham_solution(reader: BufReader<File>, station_data: &mut HashMap<String, WeatherData>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `github_lamdanghoang_solution` is never used
[INFO] [stdout]   --> src/advanced/solutions/github_lamdanghoang.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn github_lamdanghoang_solution(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `template_solution` is never used
[INFO] [stdout]  --> src/advanced/solutions/template.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn template_solution(reader: BufReader<File>, station_data: &mut HashMap<String, WeatherData>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `timeit` is never used
[INFO] [stdout]  --> src/advanced/utils.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn timeit<F: Fn() -> T, T>(name: &'static str, f: F) -> T {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_time` is never used
[INFO] [stdout]   --> src/advanced/utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_time<F: Fn() -> T, T>(name: &'static str, f: F) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_HuyDNA.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_anhpham.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_congnghiakhiem.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_lamdanghoang.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_ngyngcphu.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_nvtuanqti212.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_phapdev.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_phusy2001.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/answers/hello_world/github_zrus.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `github_HuyDNA` should have a snake case name
[INFO] [stdout]  --> src/basic/answers/two_sum/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod github_HuyDNA;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: convert the identifier to snake case: `github_huy_dna`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `github_HuyDNA` should have a snake case name
[INFO] [stdout]  --> src/basic/answers/hello_world/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod github_HuyDNA;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: convert the identifier to snake case: `github_huy_dna`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phusy2001.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phusy2001.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_zrus.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_zrus.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 5 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_HuyDNA.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_HuyDNA.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 5 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/basic/hello_world.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/two_sum.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_anhpham.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_anhpham.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_ngyngcphu.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_ngyngcphu.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_lamdanghoang.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_lamdanghoang.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/two_sum.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_nvtuanqti212.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_nvtuanqti212.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phapdev.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phapdev.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling open-hack-rust-starter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/basic/answers/two_sum/github_lamdanghoang.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[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 import: `std::collections::HashMap`
[INFO] [stdout]  --> src/basic/answers/two_sum/github_phusy2001.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/advanced/utils.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let result = f();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `github_HuyDNA` should have a snake case name
[INFO] [stdout]  --> src/basic/answers/hello_world/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod github_HuyDNA;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: convert the identifier to snake case: `github_huy_dna`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `github_HuyDNA` should have a snake case name
[INFO] [stdout]  --> src/basic/answers/two_sum/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod github_HuyDNA;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ help: convert the identifier to snake case: `github_huy_dna`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "7102276e13b260b414a154091616867043563efce42a804911a9e9f9c00e50b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7102276e13b260b414a154091616867043563efce42a804911a9e9f9c00e50b9", kill_on_drop: false }`
[INFO] [stdout] 7102276e13b260b414a154091616867043563efce42a804911a9e9f9c00e50b9