[INFO] updating cached repository https://github.com/spbots/euler-rs
[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] 9a0896613dacec4a508471d4e8e6cae82c04da66
[INFO] checking spbots/euler-rs against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspbots%2Feuler-rs" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spbots/euler-rs 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/spbots/euler-rs
[INFO] finished tweaking git repo https://github.com/spbots/euler-rs
[INFO] tweaked toml for git repo https://github.com/spbots/euler-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/spbots/euler-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 00aed7ba0c7f2f9ff819814a8a1230b894a71f88460c6bcafe5b29ea7e0f2cc3
[INFO] running `"docker" "start" "-a" "00aed7ba0c7f2f9ff819814a8a1230b894a71f88460c6bcafe5b29ea7e0f2cc3"`
[INFO] [stderr]     Checking euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `prime_factorization`
[INFO] [stderr]   --> src/euler/wheel_factorization.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn prime_factorization(n: u64) -> Vec<u64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divisors_for_number`
[INFO] [stderr]   --> src/euler/e012.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | / fn divisors_for_number(
[INFO] [stderr] 33 | |     n: u64,
[INFO] [stderr] 34 | |     w: &wheel_factorization::FactorizationWheel,
[INFO] [stderr] 35 | | ) -> HashSet<u64> {
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |     ds
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `first_triangle_number_with_n_divisors`
[INFO] [stderr]   --> src/euler/e012.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn first_triangle_number_with_n_divisors(n: u64) -> u64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "00aed7ba0c7f2f9ff819814a8a1230b894a71f88460c6bcafe5b29ea7e0f2cc3"`
[INFO] running `"docker" "rm" "-f" "00aed7ba0c7f2f9ff819814a8a1230b894a71f88460c6bcafe5b29ea7e0f2cc3"`
[INFO] [stdout] 00aed7ba0c7f2f9ff819814a8a1230b894a71f88460c6bcafe5b29ea7e0f2cc3