[INFO] cloning repository https://github.com/rylev/coding-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rylev/coding-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frylev%2Fcoding-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frylev%2Fcoding-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34a2a31e512eb89fedecc2b8800accbae0ec04e4
[INFO] checking rylev/coding-challenge against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frylev%2Fcoding-challenge" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rylev/coding-challenge on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rylev/coding-challenge
[INFO] finished tweaking git repo https://github.com/rylev/coding-challenge
[INFO] tweaked toml for git repo https://github.com/rylev/coding-challenge written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rylev/coding-challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0e7a9c181aa5df13bfa42469980f34014643f4ec5ee7b7bfe0d523d7d2899c6
[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" "f0e7a9c181aa5df13bfa42469980f34014643f4ec5ee7b7bfe0d523d7d2899c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0e7a9c181aa5df13bfa42469980f34014643f4ec5ee7b7bfe0d523d7d2899c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e7a9c181aa5df13bfa42469980f34014643f4ec5ee7b7bfe0d523d7d2899c6", kill_on_drop: false }`
[INFO] [stdout] f0e7a9c181aa5df13bfa42469980f34014643f4ec5ee7b7bfe0d523d7d2899c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53fe1df7a8b837627823807c62944e5c795ecd801b9bd7d6f2b9de3bfa9d98a0
[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" "53fe1df7a8b837627823807c62944e5c795ecd801b9bd7d6f2b9de3bfa9d98a0", kill_on_drop: false }`
[INFO] [stderr]     Checking coding-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(numbers: Vec<i32>) -> Self {
[INFO] [stdout]   |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> src/lib.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn sum_range(&self, i: i32, j: i32) -> i32 {
[INFO] [stdout]   |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]  --> src/lib.rs:8:37
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn sum_range(&self, i: i32, j: i32) -> i32 {
[INFO] [stdout]   |                                     ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(numbers: Vec<i32>) -> Self {
[INFO] [stdout]   |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> src/lib.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn sum_range(&self, i: i32, j: i32) -> i32 {
[INFO] [stdout]   |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]  --> src/lib.rs:8:37
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn sum_range(&self, i: i32, j: i32) -> i32 {
[INFO] [stdout]   |                                     ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "53fe1df7a8b837627823807c62944e5c795ecd801b9bd7d6f2b9de3bfa9d98a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53fe1df7a8b837627823807c62944e5c795ecd801b9bd7d6f2b9de3bfa9d98a0", kill_on_drop: false }`
[INFO] [stdout] 53fe1df7a8b837627823807c62944e5c795ecd801b9bd7d6f2b9de3bfa9d98a0