[INFO] cloning repository https://github.com/AllanJRY/data_structures_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AllanJRY/data_structures_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllanJRY%2Fdata_structures_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllanJRY%2Fdata_structures_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56b3cbe12e4f10593aa0fc6a56381a053471d5c1
[INFO] checking AllanJRY/data_structures_algorithms against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllanJRY%2Fdata_structures_algorithms" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AllanJRY/data_structures_algorithms on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AllanJRY/data_structures_algorithms
[INFO] finished tweaking git repo https://github.com/AllanJRY/data_structures_algorithms
[INFO] tweaked toml for git repo https://github.com/AllanJRY/data_structures_algorithms written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/AllanJRY/data_structures_algorithms 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed850d4aa65a2fdd1da9b81d601fb3d904f37c5f023ea7dbf872ac18716015ac
[INFO] running `Command { std: "docker" "start" "-a" "ed850d4aa65a2fdd1da9b81d601fb3d904f37c5f023ea7dbf872ac18716015ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed850d4aa65a2fdd1da9b81d601fb3d904f37c5f023ea7dbf872ac18716015ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed850d4aa65a2fdd1da9b81d601fb3d904f37c5f023ea7dbf872ac18716015ac", kill_on_drop: false }`
[INFO] [stdout] ed850d4aa65a2fdd1da9b81d601fb3d904f37c5f023ea7dbf872ac18716015ac
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30d6dc801585d3a79ab33ba3390442e56df5762e4a211d0fe80980bb7667749b
[INFO] running `Command { std: "docker" "start" "-a" "30d6dc801585d3a79ab33ba3390442e56df5762e4a211d0fe80980bb7667749b", kill_on_drop: false }`
[INFO] [stderr]     Checking data_structures_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `push`, `pop`, `peek`, `peek_mut`, and `reverse` are never used
[INFO] [stdout]   --> src/structures/physical/linked_list/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub trait LinkedList<T> {
[INFO] [stdout]    |           ---------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn push(&mut self, val: T);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn pop(&mut self) -> Option<T>;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn peek(&self) -> Option<&T>;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn peek_mut(&mut self) -> Option<&mut T>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn reverse(&mut self);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reverse` is never used
[INFO] [stdout]   --> src/structures/physical/linked_list/mod.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub trait LinkedList<T> {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn reverse(&mut self);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "30d6dc801585d3a79ab33ba3390442e56df5762e4a211d0fe80980bb7667749b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30d6dc801585d3a79ab33ba3390442e56df5762e4a211d0fe80980bb7667749b", kill_on_drop: false }`
[INFO] [stdout] 30d6dc801585d3a79ab33ba3390442e56df5762e4a211d0fe80980bb7667749b
