[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 master#d7bd9cd469ff6871420007f091ef52fc32d2ca99 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrabbitXIII%2Fwasm_snake" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rabbitXIII/wasm_snake on toolchain d7bd9cd469ff6871420007f091ef52fc32d2ca99
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc1/source/Cargo.toml
[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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing rabbitXIII/wasm_snake against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrabbitXIII%2Fwasm_snake" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rabbitXIII/wasm_snake on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc2/source/Cargo.toml
[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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing rabbitXIII/wasm_snake against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrabbitXIII%2Fwasm_snake" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rabbitXIII/wasm_snake on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc2/source/Cargo.toml
[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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16d80eafdf13411d9b9bc354a076e16713e45df9c50d297c27b3cd2767c52357
[INFO] running `Command { std: "docker" "start" "-a" "16d80eafdf13411d9b9bc354a076e16713e45df9c50d297c27b3cd2767c52357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16d80eafdf13411d9b9bc354a076e16713e45df9c50d297c27b3cd2767c52357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16d80eafdf13411d9b9bc354a076e16713e45df9c50d297c27b3cd2767c52357", kill_on_drop: false }`
[INFO] [stdout] 16d80eafdf13411d9b9bc354a076e16713e45df9c50d297c27b3cd2767c52357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75261577e8bfe8d65ff757f2162ae9697257234c2710e8c83f63409e4604e569
[INFO] running `Command { std: "docker" "start" "-a" "75261577e8bfe8d65ff757f2162ae9697257234c2710e8c83f63409e4604e569", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling semver-parser v0.7.0
[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 sha1 v0.6.0
[INFO] [stderr]    Compiling base-x v0.2.6
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[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)]` 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]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcWy9eVB/symbols.o" "/opt/rustwide/target/debug/deps/wasm_snake-76dadebe89ff678a.wasm_snake.66f82f628042a99d-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/wasm_snake-76dadebe89ff678a.wasm_snake.66f82f628042a99d-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/wasm_snake-76dadebe89ff678a.3akjf44sciepgiye.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib" "/opt/rustwide/target/debug/deps/libdiscard-98975c93c4127ce9.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-514878bed33c6b9c.rlib" "/opt/rustwide/target/debug/deps/libserde_json-821b7d8832f0695e.rlib" "/opt/rustwide/target/debug/deps/libryu-4110fff4b29be1a1.rlib" "/opt/rustwide/target/debug/deps/libitoa-49876a9142f55064.rlib" "/opt/rustwide/target/debug/deps/libserde-7e0328e67f38a3c2.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-41777efa78699460.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-c112ec61d40d65ca.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-20279e89ddf4a3cc.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-04ebab3d6657d9b7.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-43ee38a2c180d260.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-d8bc9f4e15c9d54f.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e6b80df35ce800f7.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-e1bb29bdfec551bd.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-7d60d25f346b95e2.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-f568bda7d014913a.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-a759d15c36457a02.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-dd7d06242b5022a0.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-f4343bfa39e809a4.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-af1cb76e71c5600e.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8c4c4e24ed6290fa.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-58f5eb9eff701be9.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9686387289eaa322.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-632ae0f28c5e55ff.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-b7903030bc1640bf.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/wasm_snake-76dadebe89ff678a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/wasm_snake-76dadebe89ff678a.wasm_snake.66f82f628042a99d-cgu.0.rcgu.o: in function `wasm_snake::snake::Snake::create_food::snippet::__cargo_web_snippet_ad7d159412cc3f611a3ed6f04ff238a29b21a272':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:149: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/wasm_snake-76dadebe89ff678a.wasm_snake.66f82f628042a99d-cgu.0.rcgu.o: in function `wasm_snake::snake::Snake::create_food::snippet::__cargo_web_snippet_ad7d159412cc3f611a3ed6f04ff238a29b21a272':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:149: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.00.rcgu.o): in function `<stdweb::webapi::rendering_context::CanvasRenderingContext2d as stdweb::webcore::instance_of::InstanceOf>::instance_of::snippet::__cargo_web_snippet_550049fd354fc2e2d13b8dacf6ebece3de7d60a0':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:64: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.00.rcgu.o): in function `<stdweb::webapi::rendering_context::CanvasRenderingContext2d as stdweb::webapi::rendering_context::RenderingContext>::from_canvas::snippet::__cargo_web_snippet_49ae24e0f2d690c290030200ef793256363af281':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:149: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.00.rcgu.o): in function `stdweb::webapi::rendering_context::CanvasRenderingContext2d::set_fill_style_color::snippet::__cargo_web_snippet_7e69871d2f0243bddcb8cffc809fd6fb5fb78697':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:139: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.00.rcgu.o):/opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:139: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.03.rcgu.o): in function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_pause_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.03.rcgu.o): in function `<stdweb::webcore::symbol::Symbol as core::ops::drop::Drop>::drop::snippet::__cargo_web_snippet_e9638d6405ab65f78daf4a5af9c9de14ecf1e2ec':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:139: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.04.rcgu.o): in function `stdweb::webapi::non_element_parent_node::INonElementParentNode::get_element_by_id::snippet::__cargo_web_snippet_d5e30f74cb752784e06bd97a37b1f89b6c3433a7':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:149: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.05.rcgu.o): in function `stdweb::webcore::value::Reference::from_raw_unchecked::snippet::__cargo_web_snippet_9f22d4ca7bc938409787341b7db181f8dd41e6df':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.05.rcgu.o): in function `<stdweb::webcore::value::Reference as core::ops::drop::Drop>::drop::snippet::__cargo_web_snippet_80d6d56760c65e49b7be8b6b01c1ea861b046bf0':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.05.rcgu.o): in function `stdweb::webapi::events::keyboard::IKeyboardEvent::key::snippet::__cargo_web_snippet_23639371cb88eaf0e4e3ff14ba63d1e5b5cea0b2':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:149: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-e43af9c98dc0be48.rlib(stdweb-e43af9c98dc0be48.stdweb.eb24e8053c7bfffb-cgu.05.rcgu.o):/opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/stdweb-0.4.20/src/webcore/macros.rs:64: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-lib)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm_snake` (bin "wasm_snake") due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "75261577e8bfe8d65ff757f2162ae9697257234c2710e8c83f63409e4604e569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75261577e8bfe8d65ff757f2162ae9697257234c2710e8c83f63409e4604e569", kill_on_drop: false }`
[INFO] [stdout] 75261577e8bfe8d65ff757f2162ae9697257234c2710e8c83f63409e4604e569