[INFO] cloning repository https://github.com/BurnySc2/leetcode-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BurnySc2/leetcode-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurnySc2%2Fleetcode-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurnySc2%2Fleetcode-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69b52526ac94051ba5ad8fe961942d0a4b41e620
[INFO] checking BurnySc2/leetcode-solutions against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurnySc2%2Fleetcode-solutions" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BurnySc2/leetcode-solutions
[INFO] finished tweaking git repo https://github.com/BurnySc2/leetcode-solutions
[INFO] tweaked toml for git repo https://github.com/BurnySc2/leetcode-solutions written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BurnySc2/leetcode-solutions on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BurnySc2/leetcode-solutions 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16cf9ba0d986e576a1d6cc7f1410d82d510a806112ab00310e9bda22b199a073
[INFO] running `Command { std: "docker" "start" "-a" "16cf9ba0d986e576a1d6cc7f1410d82d510a806112ab00310e9bda22b199a073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16cf9ba0d986e576a1d6cc7f1410d82d510a806112ab00310e9bda22b199a073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16cf9ba0d986e576a1d6cc7f1410d82d510a806112ab00310e9bda22b199a073", kill_on_drop: false }`
[INFO] [stdout] 16cf9ba0d986e576a1d6cc7f1410d82d510a806112ab00310e9bda22b199a073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06eaf6b5705d06e7cdfbd8e5a2b2a94ba22d8e78d739711d577c9f72d4124b3a
[INFO] running `Command { std: "docker" "start" "-a" "06eaf6b5705d06e7cdfbd8e5a2b2a94ba22d8e78d739711d577c9f72d4124b3a", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode-solutions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/problems/p1108.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode-solutions` (bin "leetcode-solutions") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode-solutions` (bin "leetcode-solutions" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "06eaf6b5705d06e7cdfbd8e5a2b2a94ba22d8e78d739711d577c9f72d4124b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06eaf6b5705d06e7cdfbd8e5a2b2a94ba22d8e78d739711d577c9f72d4124b3a", kill_on_drop: false }`
[INFO] [stdout] 06eaf6b5705d06e7cdfbd8e5a2b2a94ba22d8e78d739711d577c9f72d4124b3a
