[INFO] updating cached repository https://github.com/ClarkWalker/rust_wasm_yew_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a38721892dabe6687fcde7fd4454adad5864913
[INFO] testing ClarkWalker/rust_wasm_yew_demo against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClarkWalker%2Frust_wasm_yew_demo" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ClarkWalker/rust_wasm_yew_demo on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ClarkWalker/rust_wasm_yew_demo
[INFO] finished tweaking git repo https://github.com/ClarkWalker/rust_wasm_yew_demo
[INFO] tweaked toml for git repo https://github.com/ClarkWalker/rust_wasm_yew_demo written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ClarkWalker/rust_wasm_yew_demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 213e704573997b16d18806b808251d0f2df86464712222655e6b188f43e23cca
[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" "213e704573997b16d18806b808251d0f2df86464712222655e6b188f43e23cca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "213e704573997b16d18806b808251d0f2df86464712222655e6b188f43e23cca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213e704573997b16d18806b808251d0f2df86464712222655e6b188f43e23cca", kill_on_drop: false }`
[INFO] [stdout] 213e704573997b16d18806b808251d0f2df86464712222655e6b188f43e23cca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f456212ea11553904ff0d4a20325a1a6760bfadde33839465722ec239f623757
[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" "f456212ea11553904ff0d4a20325a1a6760bfadde33839465722ec239f623757", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling cc v1.0.27
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.11
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling stdweb v0.4.12
[INFO] [stderr]    Compiling http v0.1.14
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.4
[INFO] [stderr]    Compiling yew v0.4.0
[INFO] [stderr]    Compiling _2018_12_19_wasm_demo_02 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286._2018_12_19_wasm_demo_02.940tjwpc-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-4fc9875b45791286.52ptjglsty6x532g.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-77ec1f80e0f5727c/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libyew-c42be0c071ab01f7.rlib" "/opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib" "/opt/rustwide/target/debug/deps/libdiscard-ff595bbfeefd76ad.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-dde0409d0fa9034e.rlib" "/opt/rustwide/target/debug/deps/libserde_json-af3222e0c6c84412.rlib" "/opt/rustwide/target/debug/deps/libryu-1453091df3717590.rlib" "/opt/rustwide/target/debug/deps/libserde-abf613448ee1f12d.rlib" "/opt/rustwide/target/debug/deps/libhttp-8063aa347841e780.rlib" "/opt/rustwide/target/debug/deps/libitoa-a13d72d2b2f6d981.rlib" "/opt/rustwide/target/debug/deps/libfnv-17f81a650e186a33.rlib" "/opt/rustwide/target/debug/deps/libbytes-abb0afed8539b01d.rlib" "/opt/rustwide/target/debug/deps/libiovec-58857852dbf00947.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-53a07c8c7d51e476.rlib" "/opt/rustwide/target/debug/deps/liblog-88c149eb87f4da1d.rlib" "/opt/rustwide/target/debug/deps/libfailure-15aab74222c1dfcf.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-4bc5f1914f2e66de.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-96b098c9af1ecbdd.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-e78a789a07a3e1df.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-62e12eca671dc45f.rlib" "/opt/rustwide/target/debug/deps/liblibc-9118970dadd5bb31.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8bb11f807a7b6b4c.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-ca8087507780d964.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-259c92b387c1c166.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-16e0a2fbbb8e14b3.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-8a1651b8e23d2aaf.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-23bdd98b0574083e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-855a92055ec33e2e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-24c70dd44fbacdfb.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-b326273841bae587.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ac3c1f0e16507051.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5729542b65954aa.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-09bd1119ab1cad7d.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9a787681bfbeaf61.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-5a0398ee67f74664.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-c42be0c071ab01f7.rlib(yew-c42be0c071ab01f7.yew.dbf2l897-cgu.5.rcgu.o): in function `yew::virtual_dom::vtag::VTag<CTX,COMP>::apply_diffs::snippet::__cargo_web_snippet_0da47658267a7497de743e1b0892f992ba6ca6ef':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-c42be0c071ab01f7.rlib(yew-c42be0c071ab01f7.yew.dbf2l897-cgu.5.rcgu.o): in function `yew::virtual_dom::vtag::VTag<CTX,COMP>::apply_diffs::snippet::__cargo_web_snippet_6a77b2f2accec26fefbfa0d864061d26f40f8f6f':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-c42be0c071ab01f7.rlib(yew-c42be0c071ab01f7.yew.dbf2l897-cgu.5.rcgu.o): in function `yew::virtual_dom::vtag::set_attribute::snippet::__cargo_web_snippet_da2febd72f9938d90bc2bf2905643f595b07abd9':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-c42be0c071ab01f7.rlib(yew-c42be0c071ab01f7.yew.dbf2l897-cgu.5.rcgu.o): in function `yew::virtual_dom::vtag::remove_attribute::snippet::__cargo_web_snippet_f6358c198ebcc61c9da370cca2679c0b8bc81a7b':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-c42be0c071ab01f7.rlib(yew-c42be0c071ab01f7.yew.dbf2l897-cgu.5.rcgu.o): in function `yew::virtual_dom::vtag::set_checked::snippet::__cargo_web_snippet_a1f43b583e011a9bbeae64030b81f677e6c29005':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.1.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:32: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.5.rcgu.o): in function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/ffi/emscripten.rs:9: undefined reference to `emscripten_pause_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.5.rcgu.o): in function `stdweb::webapi::node::INode::append_child::snippet::__cargo_web_snippet_e741b9d9071097746386b2c2ec044a2bc73e688c':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.5.rcgu.o): in function `stdweb::webapi::node::INode::remove_child::snippet::__cargo_web_snippet_cd41a77d0178ae27c833ef2950e5f1a48a1455c1':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.5.rcgu.o): in function `stdweb::webapi::node::INode::remove_child::snippet::__cargo_web_snippet_b06dde4acf09433b5190a4b001259fe5d4abcbc2':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.5.rcgu.o): in function `stdweb::webapi::node::INode::remove_child::snippet::__cargo_web_snippet_ab05f53189dacccf2d365ad26daa407d4f7abea9':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.5.rcgu.o): in function `stdweb::webapi::node::INode::remove_child::snippet::__cargo_web_snippet_614a3dd2adb7e9eac4a0ec6e59d37f87e0521c3b':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-a59ebb3f604f6bde.rlib(stdweb-a59ebb3f604f6bde.stdweb.9j6cr2dt-cgu.5.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:101: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `_2018_12_19_wasm_demo_02`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f456212ea11553904ff0d4a20325a1a6760bfadde33839465722ec239f623757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f456212ea11553904ff0d4a20325a1a6760bfadde33839465722ec239f623757", kill_on_drop: false }`
[INFO] [stdout] f456212ea11553904ff0d4a20325a1a6760bfadde33839465722ec239f623757