[INFO] cloning repository https://github.com/ahouts/web-snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahouts/web-snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahouts%2Fweb-snake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahouts%2Fweb-snake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e71f901278c9f31fdddec2d9d158cb848184525
[INFO] testing ahouts/web-snake against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahouts%2Fweb-snake" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahouts/web-snake on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/ahouts/web-snake
[INFO] finished tweaking git repo https://github.com/ahouts/web-snake
[INFO] tweaked toml for git repo https://github.com/ahouts/web-snake written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ahouts/web-snake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded alloc-no-stdlib v1.3.0
[INFO] [stderr]   Downloaded brotli v2.5.1
[INFO] [stderr]   Downloaded brotli-decompressor v1.3.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72f639772314eb7fc29a5e437f33554f3ece5ca2d9be2f30a04691374841285f
[INFO] running `Command { std: "docker" "start" "-a" "72f639772314eb7fc29a5e437f33554f3ece5ca2d9be2f30a04691374841285f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72f639772314eb7fc29a5e437f33554f3ece5ca2d9be2f30a04691374841285f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f639772314eb7fc29a5e437f33554f3ece5ca2d9be2f30a04691374841285f", kill_on_drop: false }`
[INFO] [stdout] 72f639772314eb7fc29a5e437f33554f3ece5ca2d9be2f30a04691374841285f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60cb5bd2ef7828124679c7d0c12206e5e6e9fc55277eca436dcbdd10a696c913
[INFO] running `Command { std: "docker" "start" "-a" "60cb5bd2ef7828124679c7d0c12206e5e6e9fc55277eca436dcbdd10a696c913", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.2
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling alloc-no-stdlib v1.3.0
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.2
[INFO] [stderr]    Compiling stdweb v0.4.10
[INFO] [stderr]    Compiling brotli-decompressor v1.3.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling brotli v2.5.1
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling web-snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:148:6
[INFO] [stdout]     |
[INFO] [stdout] 148 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:145:17
[INFO] [stdout]     |
[INFO] [stdout] 145 |             let mut snake_game = snake_ref.borrow_mut();
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.57ua50dlpvec0w18.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libchrono-5e5e6f25ed9d0b9c.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-8645222f051075b1.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-d14f0c72bbf32dc0.rlib" "/opt/rustwide/target/debug/deps/libtime-817639fa0f149dac.rlib" "/opt/rustwide/target/debug/deps/liblibc-bcb46937e7421e15.rlib" "/opt/rustwide/target/debug/deps/libbincode-5fb68e978cec21bc.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-1c467fd3cc6a12f3.rlib" "/opt/rustwide/target/debug/deps/libbrotli-c50f71d02d374fab.rlib" "/opt/rustwide/target/debug/deps/libbrotli_decompressor-38e7dd86aeab7aac.rlib" "/opt/rustwide/target/debug/deps/liballoc_no_stdlib-6bb98c8f7f4bf942.rlib" "/opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib" "/opt/rustwide/target/debug/deps/libdiscard-e53e9963f70e18d6.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-9157b8b25ae9fd97.rlib" "/opt/rustwide/target/debug/deps/libserde_json-70f4043768ff96f1.rlib" "/opt/rustwide/target/debug/deps/libryu-6a86494ec31330dd.rlib" "/opt/rustwide/target/debug/deps/libitoa-629fadaade644a01.rlib" "/opt/rustwide/target/debug/deps/libserde-e35db697bf77ca01.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-37fdd654777c296f.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-d883bf2137e9181a.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-22ab8f3db88b586e.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-0167c9242d0931d5.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-361790a1a5505fc5.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-01c2ffe1ecd05a67.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-ec79e29a889fe805.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-001a3456e8a8331b.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e8f1404290f0f040.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-76f46d0f23360a60.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-baf0bdc5eb131895.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3a6a4ee6592d9370.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-1cc90d9dd57195f8.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0e91863ffbec5148.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-69528f2eac185ac9.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-52d5241975807511.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9924c22ae1efcf66.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d1241f7bd234a268.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/web_snake-11a736693da23d07" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.12.rcgu.o: in function `<stdweb::webapi::events::keyboard::KeyDownEvent as stdweb::webcore::instance_of::InstanceOf>::instance_of':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/events/keyboard.rs:225: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.12.rcgu.o: in function `stdweb::webapi::event_target::IEventTarget::add_event_listener':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/event_target.rs:54: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.12.rcgu.o: in function `stdweb::webapi::event_target::IEventTarget::add_event_listener':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/event_target.rs:54: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.12.rcgu.o: in function `stdweb::webapi::event_target::IEventTarget::add_event_listener':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/event_target.rs:54: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.12.rcgu.o: in function `stdweb::webapi::event_target::IEventTarget::add_event_listener':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/event_target.rs:54: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/web_snake-11a736693da23d07.web_snake.d801ce47-cgu.12.rcgu.o:/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/event_target.rs:54: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib(stdweb-f43a1c6d85c60224.stdweb.59b1d8f4-cgu.4.rcgu.o): in function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_pause_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib(stdweb-f43a1c6d85c60224.stdweb.59b1d8f4-cgu.4.rcgu.o): in function `stdweb::webapi::window::window':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/window.rs:45: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib(stdweb-f43a1c6d85c60224.stdweb.59b1d8f4-cgu.4.rcgu.o): in function `stdweb::webapi::window::Window::alert':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/window.rs:55: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib(stdweb-f43a1c6d85c60224.stdweb.59b1d8f4-cgu.4.rcgu.o): in function `stdweb::webapi::html_elements::canvas::CanvasElement::height':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/html_elements/canvas.rs:35: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib(stdweb-f43a1c6d85c60224.stdweb.59b1d8f4-cgu.4.rcgu.o): in function `stdweb::webapi::html_elements::canvas::CanvasElement::width':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/html_elements/canvas.rs:59: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib(stdweb-f43a1c6d85c60224.stdweb.59b1d8f4-cgu.4.rcgu.o): in function `<stdweb::webapi::html_elements::canvas::CanvasElement as stdweb::webcore::instance_of::InstanceOf>::instance_of':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/html_elements/canvas.rs:17: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-f43a1c6d85c60224.rlib(stdweb-f43a1c6d85c60224.stdweb.59b1d8f4-cgu.6.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webcore/initialization.rs:20: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: 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#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `web-snake`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "60cb5bd2ef7828124679c7d0c12206e5e6e9fc55277eca436dcbdd10a696c913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60cb5bd2ef7828124679c7d0c12206e5e6e9fc55277eca436dcbdd10a696c913", kill_on_drop: false }`
[INFO] [stdout] 60cb5bd2ef7828124679c7d0c12206e5e6e9fc55277eca436dcbdd10a696c913