[INFO] cloning repository https://github.com/dewaka/topcoder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dewaka/topcoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdewaka%2Ftopcoder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdewaka%2Ftopcoder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bf4e66d4187bbacdaf3faedbd50a0df89f59843
[INFO] checking dewaka/topcoder against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdewaka%2Ftopcoder" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dewaka/topcoder on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dewaka/topcoder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0d6795afd64104fa3d0d0f65ae5ee9978319542ae79c20b976ab71fa343481e
[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" "e0d6795afd64104fa3d0d0f65ae5ee9978319542ae79c20b976ab71fa343481e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0d6795afd64104fa3d0d0f65ae5ee9978319542ae79c20b976ab71fa343481e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d6795afd64104fa3d0d0f65ae5ee9978319542ae79c20b976ab71fa343481e", kill_on_drop: false }`
[INFO] [stdout] e0d6795afd64104fa3d0d0f65ae5ee9978319542ae79c20b976ab71fa343481e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 188c8a68b0718678e07e6a65dcc9ded915e1b1d65a1dfa03be1cc4d416ba4a98
[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" "188c8a68b0718678e07e6a65dcc9ded915e1b1d65a1dfa03be1cc4d416ba4a98", kill_on_drop: false }`
[INFO] [stderr]     Checking topcoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]  --> src/problems/energy_source.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn count_different_sources(num: i64) -> (i64, i64) {
[INFO] [stdout]   |                                ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]  --> src/problems/building_strings.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn find_any(k: i32) -> Vec<String> {
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]  --> src/problems/energy_source.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn count_different_sources(num: i64) -> (i64, i64) {
[INFO] [stdout]   |                                ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]  --> src/problems/building_strings.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn find_any(k: i32) -> Vec<String> {
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "188c8a68b0718678e07e6a65dcc9ded915e1b1d65a1dfa03be1cc4d416ba4a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188c8a68b0718678e07e6a65dcc9ded915e1b1d65a1dfa03be1cc4d416ba4a98", kill_on_drop: false }`
[INFO] [stdout] 188c8a68b0718678e07e6a65dcc9ded915e1b1d65a1dfa03be1cc4d416ba4a98