[INFO] cloning repository https://github.com/Lucian-4a25/rust-leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lucian-4a25/rust-leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucian-4a25%2Frust-leetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucian-4a25%2Frust-leetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ec261524917ddcf7df0923a054a167912387f85
[INFO] checking Lucian-4a25/rust-leetcode against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucian-4a25%2Frust-leetcode" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lucian-4a25/rust-leetcode
[INFO] finished tweaking git repo https://github.com/Lucian-4a25/rust-leetcode
[INFO] tweaked toml for git repo https://github.com/Lucian-4a25/rust-leetcode written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lucian-4a25/rust-leetcode on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lucian-4a25/rust-leetcode 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23c85080d07a9bf371eb4f2b9a94a152aaf7b507444b62ebb7cb692d92b8d9f0
[INFO] running `Command { std: "docker" "start" "-a" "23c85080d07a9bf371eb4f2b9a94a152aaf7b507444b62ebb7cb692d92b8d9f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23c85080d07a9bf371eb4f2b9a94a152aaf7b507444b62ebb7cb692d92b8d9f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c85080d07a9bf371eb4f2b9a94a152aaf7b507444b62ebb7cb692d92b8d9f0", kill_on_drop: false }`
[INFO] [stdout] 23c85080d07a9bf371eb4f2b9a94a152aaf7b507444b62ebb7cb692d92b8d9f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dda23982591a83d8a7c822dfb68942a2e363339015ea3aaadcf386adfd9cc1d
[INFO] running `Command { std: "docker" "start" "-a" "9dda23982591a83d8a7c822dfb68942a2e363339015ea3aaadcf386adfd9cc1d", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/remove_duplicates.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::slice::{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 import: `std::ops::Range`
[INFO] [stdout]  --> src/remove_duplicates.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/remove_duplicates.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::slice::{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 import: `std::ops::Range`
[INFO] [stdout]  --> src/remove_duplicates.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `slice_range` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `slice_range` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "9dda23982591a83d8a7c822dfb68942a2e363339015ea3aaadcf386adfd9cc1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dda23982591a83d8a7c822dfb68942a2e363339015ea3aaadcf386adfd9cc1d", kill_on_drop: false }`
[INFO] [stdout] 9dda23982591a83d8a7c822dfb68942a2e363339015ea3aaadcf386adfd9cc1d
