[INFO] updating cached repository https://github.com/jmcomets/stream-search
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0e2bd340c1cb0214e1a40661203bb80077009dc8
[INFO] checking jmcomets/stream-search against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcomets%2Fstream-search" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmcomets/stream-search on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jmcomets/stream-search
[INFO] finished tweaking git repo https://github.com/jmcomets/stream-search
[INFO] tweaked toml for git repo https://github.com/jmcomets/stream-search written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jmcomets/stream-search already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] eaf08d098910670227632b60abf2ebc6bef795f86a283a97c77057be100630ad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "eaf08d098910670227632b60abf2ebc6bef795f86a283a97c77057be100630ad"`
[INFO] [stderr]     Checking stream-search v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `sum_adjacent_differences`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / fn sum_adjacent_differences<'a, It>(iter: It) -> usize
[INFO] [stderr] 23 | |     where It: Iterator<Item=&'a usize> + Clone
[INFO] [stderr] 24 | | {
[INFO] [stderr] 25 | |     let cloned_iter = iter.clone();
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |         .sum()
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_adjacent_differences`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | / fn sum_adjacent_differences<'a, It>(iter: It) -> usize
[INFO] [stderr] 23 | |     where It: Iterator<Item=&'a usize> + Clone
[INFO] [stderr] 24 | | {
[INFO] [stderr] 25 | |     let cloned_iter = iter.clone();
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |         .sum()
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "eaf08d098910670227632b60abf2ebc6bef795f86a283a97c77057be100630ad"`
[INFO] running `"docker" "rm" "-f" "eaf08d098910670227632b60abf2ebc6bef795f86a283a97c77057be100630ad"`
[INFO] [stdout] eaf08d098910670227632b60abf2ebc6bef795f86a283a97c77057be100630ad