[INFO] cloning repository https://github.com/therealriteshkudalkar/practice_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/therealriteshkudalkar/practice_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealriteshkudalkar%2Fpractice_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealriteshkudalkar%2Fpractice_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8faa21d519ca9a9f5fdb1ce47610f459a07a3b4b
[INFO] checking therealriteshkudalkar/practice_rust against try#5ec4d3b0c83717313176eefa7d71e9d36dc83355 for pr-155501
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealriteshkudalkar%2Fpractice_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/therealriteshkudalkar/practice_rust
[INFO] removed 1 missing tests
[INFO] finished tweaking git repo https://github.com/therealriteshkudalkar/practice_rust
[INFO] tweaked toml for git repo https://github.com/therealriteshkudalkar/practice_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/therealriteshkudalkar/practice_rust on toolchain 5ec4d3b0c83717313176eefa7d71e9d36dc83355
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/therealriteshkudalkar/practice_rust 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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8b16adbb7c15aabf8b0f8d582cca1cc95e45fb53efcb8d29d8de93f9308d8b9
[INFO] running `Command { std: "docker" "start" "-a" "b8b16adbb7c15aabf8b0f8d582cca1cc95e45fb53efcb8d29d8de93f9308d8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8b16adbb7c15aabf8b0f8d582cca1cc95e45fb53efcb8d29d8de93f9308d8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b16adbb7c15aabf8b0f8d582cca1cc95e45fb53efcb8d29d8de93f9308d8b9", kill_on_drop: false }`
[INFO] [stdout] b8b16adbb7c15aabf8b0f8d582cca1cc95e45fb53efcb8d29d8de93f9308d8b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f088cdd023296cdd25da13f1bd11d83e95dbdf3b214b7af67e544cc7c59da2f
[INFO] running `Command { std: "docker" "start" "-a" "4f088cdd023296cdd25da13f1bd11d83e95dbdf3b214b7af67e544cc7c59da2f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main69.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         ;
[INFO] [stdout]    |         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main69.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         ;
[INFO] [stdout]    |         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/main65.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn four_sum(nums: Vec<i32>, target: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]  --> src/main65.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn four_sum(nums: Vec<i32>, target: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/main65.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn four_sum(nums: Vec<i32>, target: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]  --> src/main65.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn four_sum(nums: Vec<i32>, target: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "4f088cdd023296cdd25da13f1bd11d83e95dbdf3b214b7af67e544cc7c59da2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f088cdd023296cdd25da13f1bd11d83e95dbdf3b214b7af67e544cc7c59da2f", kill_on_drop: false }`
[INFO] [stdout] 4f088cdd023296cdd25da13f1bd11d83e95dbdf3b214b7af67e544cc7c59da2f