[INFO] cloning repository https://github.com/jit-y/leetcode-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jit-y/leetcode-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fleetcode-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fleetcode-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c46c9992516dfb38c2af97014c54123625e3d6b
[INFO] checking jit-y/leetcode-rs against master#5337252b9952fdd9482ed6a4add17254e5bd2c40 for pr-138785
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fleetcode-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jit-y/leetcode-rs on toolchain 5337252b9952fdd9482ed6a4add17254e5bd2c40
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jit-y/leetcode-rs
[INFO] finished tweaking git repo https://github.com/jit-y/leetcode-rs
[INFO] tweaked toml for git repo https://github.com/jit-y/leetcode-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jit-y/leetcode-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" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a8b4aae19b5f3edf4d257ca20a69dc3a4863a5ab4c3b14f851a91d201d5cdf0
[INFO] running `Command { std: "docker" "start" "-a" "6a8b4aae19b5f3edf4d257ca20a69dc3a4863a5ab4c3b14f851a91d201d5cdf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a8b4aae19b5f3edf4d257ca20a69dc3a4863a5ab4c3b14f851a91d201d5cdf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8b4aae19b5f3edf4d257ca20a69dc3a4863a5ab4c3b14f851a91d201d5cdf0", kill_on_drop: false }`
[INFO] [stdout] 6a8b4aae19b5f3edf4d257ca20a69dc3a4863a5ab4c3b14f851a91d201d5cdf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+5337252b9952fdd9482ed6a4add17254e5bd2c40" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 835bed96241a66bca19d70d4ecb08f06cf363fef62592198b5ff140e39a90d0d
[INFO] running `Command { std: "docker" "start" "-a" "835bed96241a66bca19d70d4ecb08f06cf363fef62592198b5ff140e39a90d0d", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> examples/minimum_add_to_make_parentheses_valid.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `min_add_to_make_valid` is never used
[INFO] [stdout]  --> examples/minimum_add_to_make_parentheses_valid.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 3 |     pub fn min_add_to_make_valid(s: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `hammingWeight` should have a snake case name
[INFO] [stdout]  --> examples/number_of_1_bits.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub fn hammingWeight(n: u32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^ help: convert the identifier to snake case: `hamming_weight`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "835bed96241a66bca19d70d4ecb08f06cf363fef62592198b5ff140e39a90d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "835bed96241a66bca19d70d4ecb08f06cf363fef62592198b5ff140e39a90d0d", kill_on_drop: false }`
[INFO] [stdout] 835bed96241a66bca19d70d4ecb08f06cf363fef62592198b5ff140e39a90d0d