[INFO] cloning repository https://github.com/DaLaw2/Simulation-Annealing-Implement
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DaLaw2/Simulation-Annealing-Implement" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaLaw2%2FSimulation-Annealing-Implement", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaLaw2%2FSimulation-Annealing-Implement'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56de66084b4481384d8dec3b3c1bc655b0e8a77e
[INFO] checking DaLaw2/Simulation-Annealing-Implement against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaLaw2%2FSimulation-Annealing-Implement" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DaLaw2/Simulation-Annealing-Implement on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DaLaw2/Simulation-Annealing-Implement
[INFO] finished tweaking git repo https://github.com/DaLaw2/Simulation-Annealing-Implement
[INFO] tweaked toml for git repo https://github.com/DaLaw2/Simulation-Annealing-Implement written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DaLaw2/Simulation-Annealing-Implement already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded calamine v0.21.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 454057da7bc795efff1d77267dc33455db60e53576078c0e918ea9ec7862bc9c
[INFO] running `Command { std: "docker" "start" "-a" "454057da7bc795efff1d77267dc33455db60e53576078c0e918ea9ec7862bc9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "454057da7bc795efff1d77267dc33455db60e53576078c0e918ea9ec7862bc9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454057da7bc795efff1d77267dc33455db60e53576078c0e918ea9ec7862bc9c", kill_on_drop: false }`
[INFO] [stdout] 454057da7bc795efff1d77267dc33455db60e53576078c0e918ea9ec7862bc9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d26a3c5b91a6e8efb8c2aeffbe82b83f73ace81dc94a938ec2a505d78d71b88b
[INFO] running `Command { std: "docker" "start" "-a" "d26a3c5b91a6e8efb8c2aeffbe82b83f73ace81dc94a938ec2a505d78d71b88b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking codepage v0.1.1
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking quick-xml v0.28.2
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking calamine v0.21.0
[INFO] [stderr]     Checking SimulationAnnealing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/main.rs:207:33
[INFO] [stdout]     |
[INFO] [stdout] 207 | fn k_opt(solution: &Vec<usize>, k: usize) -> Vec<usize> {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/main.rs:207:33
[INFO] [stdout]     |
[INFO] [stdout] 207 | fn k_opt(solution: &Vec<usize>, k: usize) -> Vec<usize> {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.87s
[INFO] running `Command { std: "docker" "inspect" "d26a3c5b91a6e8efb8c2aeffbe82b83f73ace81dc94a938ec2a505d78d71b88b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d26a3c5b91a6e8efb8c2aeffbe82b83f73ace81dc94a938ec2a505d78d71b88b", kill_on_drop: false }`
[INFO] [stdout] d26a3c5b91a6e8efb8c2aeffbe82b83f73ace81dc94a938ec2a505d78d71b88b