[INFO] cloning repository https://github.com/rabbitXIII/wasm_snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rabbitXIII/wasm_snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrabbitXIII%2Fwasm_snake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrabbitXIII%2Fwasm_snake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 792cbbf65d134d99bb608dfd10bf0e15f0b8e8e3
[INFO] testing rabbitXIII/wasm_snake against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrabbitXIII%2Fwasm_snake" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rabbitXIII/wasm_snake
[INFO] finished tweaking git repo https://github.com/rabbitXIII/wasm_snake
[INFO] tweaked toml for git repo https://github.com/rabbitXIII/wasm_snake written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rabbitXIII/wasm_snake on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rabbitXIII/wasm_snake 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c214dca71e34224ebe735034ee6ed4b38bc41b1bd5174a6e3a561e281239d5f
[INFO] running `Command { std: "docker" "start" "-a" "6c214dca71e34224ebe735034ee6ed4b38bc41b1bd5174a6e3a561e281239d5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c214dca71e34224ebe735034ee6ed4b38bc41b1bd5174a6e3a561e281239d5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c214dca71e34224ebe735034ee6ed4b38bc41b1bd5174a6e3a561e281239d5f", kill_on_drop: false }`
[INFO] [stdout] 6c214dca71e34224ebe735034ee6ed4b38bc41b1bd5174a6e3a561e281239d5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c32aebfeabbd37f3b5303d2686c5caaa0d76c224a994941139e16500b11dcac
[INFO] running `Command { std: "docker" "start" "-a" "2c32aebfeabbd37f3b5303d2686c5caaa0d76c224a994941139e16500b11dcac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling base-x v0.2.6
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]    Compiling wasm_snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/snake.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let length = input_queue.len() as i32;
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `canvas` is never read
[INFO] [stdout]  --> src/canvas.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Canvas {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 8 |   pub canvas: CanvasElement,
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BLUE` and `RED` are never constructed
[INFO] [stdout]   --> src/snake.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum Color {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] 14 |   GREEN,
[INFO] [stdout] 15 |   BLUE,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 16 |   RED,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Color` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcFLzroS/symbols.o" "<3 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libstdweb-15bd96fce50dcc8b,libdiscard-42c070064d5e00ee,libstdweb_internal_runtime-90d250613f5b1f86,libserde_json-b509c11ee0df1949,libryu-a76e0641ef2b03c7,libitoa-ef69a9d95e60733f,libserde-2573dfa115b71f11}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcFLzroS/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/wasm_snake-d5fa96ddc4c8df49" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: undefined symbol: emscripten_asm_const_int
[INFO] [stdout]           >>> referenced by macros.rs:149 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/stdweb-0.4.20/src/webcore/macros.rs:149)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/wasm_snake-d5fa96ddc4c8df49.wasm_snake.633065da0f3d613-cgu.0.rcgu.o:(wasm_snake::snake::Snake::create_food::snippet::__cargo_web_snippet_ad7d159412cc3f611a3ed6f04ff238a29b21a272::h5188f22dc2767b0d)
[INFO] [stdout]           >>> referenced by macros.rs:149 (/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/stdweb-0.4.20/src/webcore/macros.rs:149)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/wasm_snake-d5fa96ddc4c8df49.wasm_snake.633065da0f3d613-cgu.0.rcgu.o:(wasm_snake::snake::Snake::create_food::snippet::__cargo_web_snippet_ad7d159412cc3f611a3ed6f04ff238a29b21a272::h5ffef28727a858ab)
[INFO] [stdout]           >>> referenced by macros.rs:64 (src/webcore/macros.rs:64)
[INFO] [stdout]           >>>               stdweb-15bd96fce50dcc8b.stdweb.e6ad0f0f1eefc354-cgu.00.rcgu.o:(_$LT$stdweb..webapi..rendering_context..CanvasRenderingContext2d$u20$as$u20$stdweb..webcore..instance_of..InstanceOf$GT$::instance_of::snippet::__cargo_web_snippet_550049fd354fc2e2d13b8dacf6ebece3de7d60a0::h5b1a45aafdcce9a7) in archive /opt/rustwide/target/debug/deps/libstdweb-15bd96fce50dcc8b.rlib
[INFO] [stdout]           >>> referenced 30 more times
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: emscripten_pause_main_loop
[INFO] [stdout]           >>> referenced by emscripten.rs:11 (src/webcore/ffi/emscripten.rs:11)
[INFO] [stdout]           >>>               stdweb-15bd96fce50dcc8b.stdweb.e6ad0f0f1eefc354-cgu.04.rcgu.o:(stdweb::webcore::ffi::emscripten::event_loop::h1e366e2335e60a15) in archive /opt/rustwide/target/debug/deps/libstdweb-15bd96fce50dcc8b.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: emscripten_set_main_loop
[INFO] [stdout]           >>> referenced by emscripten.rs:11 (src/webcore/ffi/emscripten.rs:11)
[INFO] [stdout]           >>>               stdweb-15bd96fce50dcc8b.stdweb.e6ad0f0f1eefc354-cgu.04.rcgu.o:(stdweb::webcore::ffi::emscripten::event_loop::h1e366e2335e60a15) in archive /opt/rustwide/target/debug/deps/libstdweb-15bd96fce50dcc8b.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm_snake` (bin "wasm_snake") due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2c32aebfeabbd37f3b5303d2686c5caaa0d76c224a994941139e16500b11dcac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c32aebfeabbd37f3b5303d2686c5caaa0d76c224a994941139e16500b11dcac", kill_on_drop: false }`
[INFO] [stdout] 2c32aebfeabbd37f3b5303d2686c5caaa0d76c224a994941139e16500b11dcac
