[INFO] cloning repository https://github.com/jstrojil/genetic-algorithm-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jstrojil/genetic-algorithm-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstrojil%2Fgenetic-algorithm-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstrojil%2Fgenetic-algorithm-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db17c0555225b8d7228c10654a1b59b56d3fd8b2
[INFO] testing jstrojil/genetic-algorithm-in-rust against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstrojil%2Fgenetic-algorithm-in-rust" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jstrojil/genetic-algorithm-in-rust on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jstrojil/genetic-algorithm-in-rust
[INFO] finished tweaking git repo https://github.com/jstrojil/genetic-algorithm-in-rust
[INFO] tweaked toml for git repo https://github.com/jstrojil/genetic-algorithm-in-rust written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/jstrojil/genetic-algorithm-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc4d85873432d80afa01ad81a24bc46c4e87c3b6dcb6f9774624eedd85bc660f
[INFO] running `Command { std: "docker" "start" "-a" "dc4d85873432d80afa01ad81a24bc46c4e87c3b6dcb6f9774624eedd85bc660f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc4d85873432d80afa01ad81a24bc46c4e87c3b6dcb6f9774624eedd85bc660f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4d85873432d80afa01ad81a24bc46c4e87c3b6dcb6f9774624eedd85bc660f", kill_on_drop: false }`
[INFO] [stdout] dc4d85873432d80afa01ad81a24bc46c4e87c3b6dcb6f9774624eedd85bc660f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f05f0cf68b4c9c0c9d4ed1f43a4c5c3da2be4d31148f4bd38b4ef3136826cade
[INFO] running `Command { std: "docker" "start" "-a" "f05f0cf68b4c9c0c9d4ed1f43a4c5c3da2be4d31148f4bd38b4ef3136826cade", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling find_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "f05f0cf68b4c9c0c9d4ed1f43a4c5c3da2be4d31148f4bd38b4ef3136826cade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05f0cf68b4c9c0c9d4ed1f43a4c5c3da2be4d31148f4bd38b4ef3136826cade", kill_on_drop: false }`
[INFO] [stdout] f05f0cf68b4c9c0c9d4ed1f43a4c5c3da2be4d31148f4bd38b4ef3136826cade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f8f9fcbfbc4db921979dad503a03b4676ac0ef6b621620adda1493bf7152c22
[INFO] running `Command { std: "docker" "start" "-a" "6f8f9fcbfbc4db921979dad503a03b4676ac0ef6b621620adda1493bf7152c22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling find_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "6f8f9fcbfbc4db921979dad503a03b4676ac0ef6b621620adda1493bf7152c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8f9fcbfbc4db921979dad503a03b4676ac0ef6b621620adda1493bf7152c22", kill_on_drop: false }`
[INFO] [stdout] 6f8f9fcbfbc4db921979dad503a03b4676ac0ef6b621620adda1493bf7152c22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 600b6f5bfdecac0f078dfa8ccf9705e72f97f8de8b9fea5503b2f5374d3bee39
[INFO] running `Command { std: "docker" "start" "-a" "600b6f5bfdecac0f078dfa8ccf9705e72f97f8de8b9fea5503b2f5374d3bee39", kill_on_drop: false }`
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/main.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `find_string` (bin "find_string" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/find_string-50f3c8591b9757eb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "600b6f5bfdecac0f078dfa8ccf9705e72f97f8de8b9fea5503b2f5374d3bee39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "600b6f5bfdecac0f078dfa8ccf9705e72f97f8de8b9fea5503b2f5374d3bee39", kill_on_drop: false }`
[INFO] [stdout] 600b6f5bfdecac0f078dfa8ccf9705e72f97f8de8b9fea5503b2f5374d3bee39