[INFO] cloning repository https://github.com/IndianBoy42/triangle-checkers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IndianBoy42/triangle-checkers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Ftriangle-checkers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Ftriangle-checkers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9db25d4196ae9f315107265d913ac545002591c
[INFO] testing IndianBoy42/triangle-checkers against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Ftriangle-checkers" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IndianBoy42/triangle-checkers 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/IndianBoy42/triangle-checkers
[INFO] finished tweaking git repo https://github.com/IndianBoy42/triangle-checkers
[INFO] tweaked toml for git repo https://github.com/IndianBoy42/triangle-checkers written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/IndianBoy42/triangle-checkers 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 8f06ca0aac2c19c059a8dd3214e158f3ea8ed5274cb7561c1a809a82f292f420
[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" "8f06ca0aac2c19c059a8dd3214e158f3ea8ed5274cb7561c1a809a82f292f420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f06ca0aac2c19c059a8dd3214e158f3ea8ed5274cb7561c1a809a82f292f420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f06ca0aac2c19c059a8dd3214e158f3ea8ed5274cb7561c1a809a82f292f420", kill_on_drop: false }`
[INFO] [stdout] 8f06ca0aac2c19c059a8dd3214e158f3ea8ed5274cb7561c1a809a82f292f420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 2a60c0512bba745c12b6b06f4082df4cd24d24abdc6094eb6e2f5b5ef30f9a14
[INFO] running `Command { std: "docker" "start" "-a" "2a60c0512bba745c12b6b06f4082df4cd24d24abdc6094eb6e2f5b5ef30f9a14", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling signal-hook v0.3.9
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[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling object v0.24.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling andrew v0.3.1
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling xcursor v0.3.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling signal-hook-mio v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling crossterm v0.20.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling wayland-commons v0.28.6
[INFO] [stderr]    Compiling calloop v0.6.5
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling wayland-cursor v0.28.6
[INFO] [stderr]    Compiling wayland-egl v0.28.6
[INFO] [stderr]    Compiling smithay-client-toolkit v0.12.3
[INFO] [stderr]    Compiling winit v0.24.0
[INFO] [stderr]    Compiling glutin v0.26.0
[INFO] [stderr]    Compiling speedy2d v1.1.0
[INFO] [stderr]    Compiling triangle-checkers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `helper`
[INFO] [stdout]   --> src/main.rs:68:28
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn on_start(&mut self, helper: &mut WindowHelper<()>, info: window::WindowStartupInfo) {}
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_helper`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info`
[INFO] [stdout]   --> src/main.rs:68:59
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn on_start(&mut self, helper: &mut WindowHelper<()>, info: window::WindowStartupInfo) {}
[INFO] [stdout]    |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `helper`
[INFO] [stdout]   --> src/main.rs:70:33
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn on_user_event(&mut self, helper: &mut WindowHelper<()>, user_event: ()) {}
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_helper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_event`
[INFO] [stdout]   --> src/main.rs:70:64
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn on_user_event(&mut self, helper: &mut WindowHelper<()>, user_event: ()) {}
[INFO] [stdout]    |                                                                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `helper`
[INFO] [stdout]   --> src/main.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn on_resize(&mut self, helper: &mut WindowHelper<()>, size_pixels: Vector2<u32>) {}
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_helper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size_pixels`
[INFO] [stdout]   --> src/main.rs:72:60
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn on_resize(&mut self, helper: &mut WindowHelper<()>, size_pixels: Vector2<u32>) {}
[INFO] [stdout]    |                                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_size_pixels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `helper`
[INFO] [stdout]   --> src/main.rs:74:43
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn on_scale_factor_changed(&mut self, helper: &mut WindowHelper<()>, scale_factor: f64) {}
[INFO] [stdout]    |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_helper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale_factor`
[INFO] [stdout]   --> src/main.rs:74:74
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn on_scale_factor_changed(&mut self, helper: &mut WindowHelper<()>, scale_factor: f64) {}
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scale_factor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alt`
[INFO] [stdout]   --> src/main.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let alt = mods.map(|m| m.alt()).unwrap_or(false);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_alt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shift`
[INFO] [stdout]   --> src/main.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let shift = mods.map(|m| m.shift()).unwrap_or(false);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_shift`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `helper`
[INFO] [stdout]    --> src/main.rs:313:9
[INFO] [stdout]     |
[INFO] [stdout] 313 |         helper: &mut WindowHelper<()>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_helper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `virtual_key_code`
[INFO] [stdout]    --> src/main.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |         virtual_key_code: Option<VirtualKeyCode>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_virtual_key_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scancode`
[INFO] [stdout]    --> src/main.rs:315:9
[INFO] [stdout]     |
[INFO] [stdout] 315 |         scancode: KeyScancode,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scancode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `helper`
[INFO] [stdout]    --> src/main.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |         helper: &mut WindowHelper<()>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_helper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `virtual_key_code`
[INFO] [stdout]    --> src/main.rs:322:9
[INFO] [stdout]     |
[INFO] [stdout] 322 |         virtual_key_code: Option<VirtualKeyCode>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_virtual_key_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scancode`
[INFO] [stdout]    --> src/main.rs:323:9
[INFO] [stdout]     |
[INFO] [stdout] 323 |         scancode: KeyScancode,
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scancode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `over`
[INFO] [stdout]    --> src/gamestate.rs:153:24
[INFO] [stdout]     |
[INFO] [stdout] 153 |             for (from, over, to) in board.all_valid_moves() {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_over`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]    --> src/gamestate.rs:155:37
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 let (existing, idx, board) = self
[INFO] [stdout]     |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_right_flip`
[INFO] [stdout]    --> src/board.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 |     fn rotate_right_flip(&self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_left_flip`
[INFO] [stdout]    --> src/board.rs:227:8
[INFO] [stdout]     |
[INFO] [stdout] 227 |     fn rotate_left_flip(&self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solvable`
[INFO] [stdout]   --> src/gamestate.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn solvable<'a>(&'a self, p: &'a GameTree<SIZE>) -> impl Iterator<Item = usize> + 'a {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]    --> src/gamestate.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn get_mut(&mut self, i: usize) -> Option<&mut GameTreeNode<SIZE>> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_solvable`
[INFO] [stdout]    --> src/gamestate.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn check_solvable(&self, from: usize) -> Option<impl Iterator<Item = usize> + '_> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `U32Set`
[INFO] [stdout]   --> src/u32set.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub type U32Set = FixedBitSet<u32>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `U64Set`
[INFO] [stdout]   --> src/u32set.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub type U64Set = FixedBitSet<u64>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(default_free_fn)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_size_of_val)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `triangle-checkers` due to 3 previous errors; 25 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2a60c0512bba745c12b6b06f4082df4cd24d24abdc6094eb6e2f5b5ef30f9a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a60c0512bba745c12b6b06f4082df4cd24d24abdc6094eb6e2f5b5ef30f9a14", kill_on_drop: false }`
[INFO] [stdout] 2a60c0512bba745c12b6b06f4082df4cd24d24abdc6094eb6e2f5b5ef30f9a14