[INFO] updating cached repository https://github.com/fmendez/euler-rs
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddd2ac7cf5dbdf15a545df3d3e7f5ea6146464c7
[INFO] checking fmendez/euler-rs against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmendez%2Feuler-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fmendez/euler-rs on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fmendez/euler-rs
[INFO] finished tweaking git repo https://github.com/fmendez/euler-rs
[INFO] tweaked toml for git repo https://github.com/fmendez/euler-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/fmendez/euler-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81e59661c7a5d652339d9a1c535c0416d946dda906dfe65a0176542af610deb4
[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" "81e59661c7a5d652339d9a1c535c0416d946dda906dfe65a0176542af610deb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81e59661c7a5d652339d9a1c535c0416d946dda906dfe65a0176542af610deb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e59661c7a5d652339d9a1c535c0416d946dda906dfe65a0176542af610deb4", kill_on_drop: false }`
[INFO] [stdout] 81e59661c7a5d652339d9a1c535c0416d946dda906dfe65a0176542af610deb4
[INFO] running `Command { std: "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ad55bb545d2294d2db769cfaf41aacea83d7a08e9b8f1341c5f47e2820bb57c
[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" "5ad55bb545d2294d2db769cfaf41aacea83d7a08e9b8f1341c5f47e2820bb57c", kill_on_drop: false }`
[INFO] [stderr]     Checking euler-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `sum_multiples_of_a_and_b_below_z`
[INFO] [stdout]  --> src/problems/problem_001.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum_multiples_of_a_and_b_below_z(a: u64, b: u64, z: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `divible_by`
[INFO] [stdout]  --> src/problems/problem_001.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn divible_by(n: u64, z: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_even_fibonacci_not_exceeding_x`
[INFO] [stdout]  --> src/problems/problem_002.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum_even_fibonacci_not_exceeding_x(target: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "5ad55bb545d2294d2db769cfaf41aacea83d7a08e9b8f1341c5f47e2820bb57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad55bb545d2294d2db769cfaf41aacea83d7a08e9b8f1341c5f47e2820bb57c", kill_on_drop: false }`
[INFO] [stdout] 5ad55bb545d2294d2db769cfaf41aacea83d7a08e9b8f1341c5f47e2820bb57c