[INFO] updating cached repository https://github.com/dewaka/topcoder
[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] 1bf4e66d4187bbacdaf3faedbd50a0df89f59843
[INFO] checking dewaka/topcoder against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdewaka%2Ftopcoder" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dewaka/topcoder on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dewaka/topcoder
[INFO] finished tweaking git repo https://github.com/dewaka/topcoder
[INFO] tweaked toml for git repo https://github.com/dewaka/topcoder written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/dewaka/topcoder already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 850edea9b4a76e6398220e73441e511d7d6100eb8a3a27fe079a3a1c7fa35165
[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" "850edea9b4a76e6398220e73441e511d7d6100eb8a3a27fe079a3a1c7fa35165"`
[INFO] [stderr]     Checking topcoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]  --> src/problems/energy_source.rs:3:32
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn count_different_sources(num: i64) -> (i64, i64) {
[INFO] [stderr]   |                                ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]  --> src/problems/building_strings.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn find_any(k: i32) -> Vec<String> {
[INFO] [stderr]   |                 ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]  --> src/problems/energy_source.rs:3:32
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn count_different_sources(num: i64) -> (i64, i64) {
[INFO] [stderr]   |                                ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]  --> src/problems/building_strings.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn find_any(k: i32) -> Vec<String> {
[INFO] [stderr]   |                 ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "850edea9b4a76e6398220e73441e511d7d6100eb8a3a27fe079a3a1c7fa35165"`
[INFO] running `"docker" "rm" "-f" "850edea9b4a76e6398220e73441e511d7d6100eb8a3a27fe079a3a1c7fa35165"`
[INFO] [stdout] 850edea9b4a76e6398220e73441e511d7d6100eb8a3a27fe079a3a1c7fa35165