[INFO] cloning repository https://github.com/sevenshi/rs-leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sevenshi/rs-leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevenshi%2Frs-leetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevenshi%2Frs-leetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c134b507036c8b9360d9b4d6b03e3d8a127a58c8
[INFO] checking sevenshi/rs-leetcode against try#51b1964e35e5e26f8cd938940f0da6f7b5cc54fc for pr-138176
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsevenshi%2Frs-leetcode" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sevenshi/rs-leetcode on toolchain 51b1964e35e5e26f8cd938940f0da6f7b5cc54fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sevenshi/rs-leetcode
[INFO] finished tweaking git repo https://github.com/sevenshi/rs-leetcode
[INFO] tweaked toml for git repo https://github.com/sevenshi/rs-leetcode written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sevenshi/rs-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" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d03538f4e23b11dad838684d761c8b4b2b94cff5e06ab9ceedf0b732dc8e8f25
[INFO] running `Command { std: "docker" "start" "-a" "d03538f4e23b11dad838684d761c8b4b2b94cff5e06ab9ceedf0b732dc8e8f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d03538f4e23b11dad838684d761c8b4b2b94cff5e06ab9ceedf0b732dc8e8f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d03538f4e23b11dad838684d761c8b4b2b94cff5e06ab9ceedf0b732dc8e8f25", kill_on_drop: false }`
[INFO] [stdout] d03538f4e23b11dad838684d761c8b4b2b94cff5e06ab9ceedf0b732dc8e8f25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+51b1964e35e5e26f8cd938940f0da6f7b5cc54fc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34c21ca6ac3fc842e8c99d19764a4816b6ee5edb9b46c07d559b249ebd94291a
[INFO] running `Command { std: "docker" "start" "-a" "34c21ca6ac3fc842e8c99d19764a4816b6ee5edb9b46c07d559b249ebd94291a", kill_on_drop: false }`
[INFO] [stderr]     Checking rs-leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:122:7
[INFO] [stdout]     |
[INFO] [stdout] 122 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:175:7
[INFO] [stdout]     |
[INFO] [stdout] 175 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:122:7
[INFO] [stdout]     |
[INFO] [stdout] 122 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:175:7
[INFO] [stdout]     |
[INFO] [stdout] 175 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:224:7
[INFO] [stdout]     |
[INFO] [stdout] 224 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:295:7
[INFO] [stdout]     |
[INFO] [stdout] 295 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:339:7
[INFO] [stdout]     |
[INFO] [stdout] 339 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:353:7
[INFO] [stdout]     |
[INFO] [stdout] 353 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:224:7
[INFO] [stdout]     |
[INFO] [stdout] 224 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Display`
[INFO] [stdout]  --> src/solved/problem_0002.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{boxed::Box, fmt::Display};
[INFO] [stdout]   |                       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:295:7
[INFO] [stdout]     |
[INFO] [stdout] 295 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:339:7
[INFO] [stdout]     |
[INFO] [stdout] 339 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unused`
[INFO] [stdout]    --> src/solved/problem_0002.rs:353:7
[INFO] [stdout]     |
[INFO] [stdout] 353 | #[cfg(feature = "unused")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `unused` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Display`
[INFO] [stdout]  --> src/solved/problem_0002.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{boxed::Box, fmt::Display};
[INFO] [stdout]   |                       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_sum` is never used
[INFO] [stdout]  --> src/solved/problem_0001.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn two_sum(nums: Vec<i32>,target: i32) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/solved/problem_0001.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn run(){
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_sum` is never used
[INFO] [stdout]  --> src/solved/problem_0001.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn two_sum(nums: Vec<i32>,target: i32) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/solved/problem_0001.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn run(){
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "34c21ca6ac3fc842e8c99d19764a4816b6ee5edb9b46c07d559b249ebd94291a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c21ca6ac3fc842e8c99d19764a4816b6ee5edb9b46c07d559b249ebd94291a", kill_on_drop: false }`
[INFO] [stdout] 34c21ca6ac3fc842e8c99d19764a4816b6ee5edb9b46c07d559b249ebd94291a