[INFO] cloning repository https://github.com/galigalikun/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/galigalikun/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaligalikun%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaligalikun%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6a1de398eb5fda1902f1ec5944b79d8a7222041
[INFO] checking galigalikun/leetcode/b6a1de398eb5fda1902f1ec5944b79d8a7222041 against master#1f81f906893d166d05fb4839f169983f2b564cc7 for pr-135167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaligalikun%2Fleetcode" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/galigalikun/leetcode on toolchain 1f81f906893d166d05fb4839f169983f2b564cc7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/galigalikun/leetcode
[INFO] finished tweaking git repo https://github.com/galigalikun/leetcode
[INFO] tweaked toml for git repo https://github.com/galigalikun/leetcode written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/galigalikun/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" "+1f81f906893d166d05fb4839f169983f2b564cc7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37eb2f060fd8600bdddce08e0d2f74e430b34ae79b7e44c4ab31ae4bdd332d4f
[INFO] running `Command { std: "docker" "start" "-a" "37eb2f060fd8600bdddce08e0d2f74e430b34ae79b7e44c4ab31ae4bdd332d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37eb2f060fd8600bdddce08e0d2f74e430b34ae79b7e44c4ab31ae4bdd332d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37eb2f060fd8600bdddce08e0d2f74e430b34ae79b7e44c4ab31ae4bdd332d4f", kill_on_drop: false }`
[INFO] [stdout] 37eb2f060fd8600bdddce08e0d2f74e430b34ae79b7e44c4ab31ae4bdd332d4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f22a3c1f4faab25b6bd11f05b30e931ea84872b4cf9150203bba1f9e13bd153
[INFO] running `Command { std: "docker" "start" "-a" "4f22a3c1f4faab25b6bd11f05b30e931ea84872b4cf9150203bba1f9e13bd153", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bits`
[INFO] [stdout]   --> src/1-bit-and-2-bit-characters.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn is_one_bit_character(bits: Vec<i32>) -> bool {
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bits`
[INFO] [stdout]   --> src/1-bit-and-2-bit-characters.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn is_one_bit_character(bits: Vec<i32>) -> bool {
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "4f22a3c1f4faab25b6bd11f05b30e931ea84872b4cf9150203bba1f9e13bd153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f22a3c1f4faab25b6bd11f05b30e931ea84872b4cf9150203bba1f9e13bd153", kill_on_drop: false }`
[INFO] [stdout] 4f22a3c1f4faab25b6bd11f05b30e931ea84872b4cf9150203bba1f9e13bd153