[INFO] cloning repository https://github.com/ADkun/leet-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ADkun/leet-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FADkun%2Fleet-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FADkun%2Fleet-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b416fc5b00737bdf46e3d4c920829872c2b9133e
[INFO] checking ADkun/leet-rs against master#e22dab387f6b4f6a87dfc54ac2f6013dddb41e68 for pr-136776-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FADkun%2Fleet-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ADkun/leet-rs
[INFO] finished tweaking git repo https://github.com/ADkun/leet-rs
[INFO] tweaked toml for git repo https://github.com/ADkun/leet-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ADkun/leet-rs on toolchain e22dab387f6b4f6a87dfc54ac2f6013dddb41e68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ADkun/leet-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0688fe8e5ef44e69cc85c450e282ee0b0f7b23930c54f1cd4d20c14a045336f9
[INFO] running `Command { std: "docker" "start" "-a" "0688fe8e5ef44e69cc85c450e282ee0b0f7b23930c54f1cd4d20c14a045336f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0688fe8e5ef44e69cc85c450e282ee0b0f7b23930c54f1cd4d20c14a045336f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0688fe8e5ef44e69cc85c450e282ee0b0f7b23930c54f1cd4d20c14a045336f9", kill_on_drop: false }`
[INFO] [stdout] 0688fe8e5ef44e69cc85c450e282ee0b0f7b23930c54f1cd4d20c14a045336f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0077d588293886ee918d59685084ec75b8120a0132ee2639d3aacf28f43a5dbb
[INFO] running `Command { std: "docker" "start" "-a" "0077d588293886ee918d59685084ec75b8120a0132ee2639d3aacf28f43a5dbb", kill_on_drop: false }`
[INFO] [stderr]     Checking leet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `is_palindrome_optimize` is never used
[INFO] [stdout]   --> src/is_palindrome.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn is_palindrome_optimize(x: i32) -> bool {
[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 `is_palindrome` is never used
[INFO] [stdout]  --> src/is_palindrome.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn is_palindrome(x: i32) -> bool {
[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 `is_palindrome_optimize` is never used
[INFO] [stdout]   --> src/is_palindrome.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn is_palindrome_optimize(x: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `roman_to_int` is never used
[INFO] [stdout]  --> src/roman_to_int.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn roman_to_int(s: String) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_sum_hash` is never used
[INFO] [stdout]  --> src/two_sum.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn two_sum_hash(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_sum` is never used
[INFO] [stdout]   --> src/two_sum.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | 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 0.35s
[INFO] running `Command { std: "docker" "inspect" "0077d588293886ee918d59685084ec75b8120a0132ee2639d3aacf28f43a5dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0077d588293886ee918d59685084ec75b8120a0132ee2639d3aacf28f43a5dbb", kill_on_drop: false }`
[INFO] [stdout] 0077d588293886ee918d59685084ec75b8120a0132ee2639d3aacf28f43a5dbb
