[INFO] cloning repository https://github.com/AustinOliverHaskell/GenerativeArt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AustinOliverHaskell/GenerativeArt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAustinOliverHaskell%2FGenerativeArt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAustinOliverHaskell%2FGenerativeArt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f79b0eb5bc161926e8bedb32478d14bd489cdf54
[INFO] testing AustinOliverHaskell/GenerativeArt against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAustinOliverHaskell%2FGenerativeArt" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AustinOliverHaskell/GenerativeArt on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AustinOliverHaskell/GenerativeArt
[INFO] finished tweaking git repo https://github.com/AustinOliverHaskell/GenerativeArt
[INFO] tweaked toml for git repo https://github.com/AustinOliverHaskell/GenerativeArt written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/AustinOliverHaskell/GenerativeArt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47286007fc305bd822f5a04b3042b185c65944f972091fd36163fa0c47a5249b
[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" "47286007fc305bd822f5a04b3042b185c65944f972091fd36163fa0c47a5249b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47286007fc305bd822f5a04b3042b185c65944f972091fd36163fa0c47a5249b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47286007fc305bd822f5a04b3042b185c65944f972091fd36163fa0c47a5249b", kill_on_drop: false }`
[INFO] [stdout] 47286007fc305bd822f5a04b3042b185c65944f972091fd36163fa0c47a5249b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8314dbf5d1acf97991a102349266d2109ec606608d6b367d0e78f38cd7b5e48e
[INFO] running `Command { std: "docker" "start" "-a" "8314dbf5d1acf97991a102349266d2109ec606608d6b367d0e78f38cd7b5e48e", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling deflate v0.9.1
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling png v0.17.2
[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 generative_art v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/gravity_sim.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let slope = point_a.slope(point_b);
[INFO] [stdout]    |                 ---------------------- expected due to this value
[INFO] [stdout] ...
[INFO] [stdout] 23 |         slope = slope.unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ expected enum `Option`, found `f32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Option<f32>`
[INFO] [stdout]               found type `f32`
[INFO] [stdout] help: try wrapping the expression in `Some`
[INFO] [stdout]    |
[INFO] [stdout] 23 |         slope = Some(slope.unwrap());
[INFO] [stdout]    |                 +++++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `generative_art` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8314dbf5d1acf97991a102349266d2109ec606608d6b367d0e78f38cd7b5e48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8314dbf5d1acf97991a102349266d2109ec606608d6b367d0e78f38cd7b5e48e", kill_on_drop: false }`
[INFO] [stdout] 8314dbf5d1acf97991a102349266d2109ec606608d6b367d0e78f38cd7b5e48e