[INFO] cloning repository https://github.com/ikaranmali/leetcode-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ikaranmali/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikaranmali%2Fleetcode-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikaranmali%2Fleetcode-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df0f1622f0e8ee5dd45f8a19f9e1e9bbd09b04a6
[INFO] checking ikaranmali/leetcode-rust against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikaranmali%2Fleetcode-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ikaranmali/leetcode-rust on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ikaranmali/leetcode-rust
[INFO] finished tweaking git repo https://github.com/ikaranmali/leetcode-rust
[INFO] tweaked toml for git repo https://github.com/ikaranmali/leetcode-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ikaranmali/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d39a5c3ced9d83bebe20f5e84f82d30cd55e5edd1323d06303854b268cb813e7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d39a5c3ced9d83bebe20f5e84f82d30cd55e5edd1323d06303854b268cb813e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d39a5c3ced9d83bebe20f5e84f82d30cd55e5edd1323d06303854b268cb813e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d39a5c3ced9d83bebe20f5e84f82d30cd55e5edd1323d06303854b268cb813e7", kill_on_drop: false }`
[INFO] [stdout] d39a5c3ced9d83bebe20f5e84f82d30cd55e5edd1323d06303854b268cb813e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcf52f64169e8163400852dabe3454b1d2e28afd7cebe98188215a61e69bd384
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fcf52f64169e8163400852dabe3454b1d2e28afd7cebe98188215a61e69bd384", kill_on_drop: false }`
[INFO] [stderr]     Checking two_sum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `reversed_integer` is never read
[INFO] [stdout]   --> src/palindrome_check.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut reversed_integer:i64 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/palindrome_check.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     x: i32
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `reversed_integer` is never read
[INFO] [stdout]   --> src/palindrome_check.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut reversed_integer:i64 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/palindrome_check.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     x: i32
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "fcf52f64169e8163400852dabe3454b1d2e28afd7cebe98188215a61e69bd384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf52f64169e8163400852dabe3454b1d2e28afd7cebe98188215a61e69bd384", kill_on_drop: false }`
[INFO] [stdout] fcf52f64169e8163400852dabe3454b1d2e28afd7cebe98188215a61e69bd384