[INFO] cloning 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" "clone" "--bare" "https://github.com/ClarkWalker/rust_wasm_yew_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClarkWalker%2Frust_wasm_yew_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClarkWalker%2Frust_wasm_yew_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a38721892dabe6687fcde7fd4454adad5864913
[INFO] testing ClarkWalker/rust_wasm_yew_demo against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClarkWalker%2Frust_wasm_yew_demo" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ClarkWalker/rust_wasm_yew_demo on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-2/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base-x v0.2.3
[INFO] [stderr]   Downloaded stdweb-derive v0.5.1
[INFO] [stderr]   Downloaded serde v1.0.82
[INFO] [stderr]   Downloaded cc v1.0.27
[INFO] [stderr]   Downloaded stdweb-internal-runtime v0.1.3
[INFO] [stderr]   Downloaded serde_derive v1.0.82
[INFO] [stderr]   Downloaded stdweb-internal-macros v0.2.4
[INFO] [stderr]   Downloaded yew v0.4.0
[INFO] [stderr]   Downloaded stdweb v0.4.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa732b7ee4a1f66e4310b590b3e5630c4ee3650a1c4ac3df75a77e502aa7be98
[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" "fa732b7ee4a1f66e4310b590b3e5630c4ee3650a1c4ac3df75a77e502aa7be98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa732b7ee4a1f66e4310b590b3e5630c4ee3650a1c4ac3df75a77e502aa7be98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa732b7ee4a1f66e4310b590b3e5630c4ee3650a1c4ac3df75a77e502aa7be98", kill_on_drop: false }`
[INFO] [stdout] fa732b7ee4a1f66e4310b590b3e5630c4ee3650a1c4ac3df75a77e502aa7be98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd3e3df9035f871fb97719448545b8d2579379fdb75130f485c59021d518c429
[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" "bd3e3df9035f871fb97719448545b8d2579379fdb75130f485c59021d518c429", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling cc v1.0.27
[INFO] [stderr]    Compiling autocfg v0.1.1
[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 byteorder v1.2.7
[INFO] [stderr]    Compiling stdweb v0.4.12
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling http v0.1.14
[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_derive v0.1.3
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.4
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[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" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef._2018_12_19_wasm_demo_02.89fl93mj-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef" "/opt/rustwide/target/debug/deps/_2018_12_19_wasm_demo_02-9e1786f43929edef.6lfvad9ftbgrysj.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-3dd64c92a0d9ce26/out" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libyew-c3adfaf9b4df8d31.rlib" "/opt/rustwide/target/debug/deps/libstdweb-be2833e14df1a5ad.rlib" "/opt/rustwide/target/debug/deps/libdiscard-94ce9fa1d11eb511.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-32b1830b670e2934.rlib" "/opt/rustwide/target/debug/deps/libserde_json-816cbd0b6ae016c1.rlib" "/opt/rustwide/target/debug/deps/libryu-a2e05793006b80b0.rlib" "/opt/rustwide/target/debug/deps/libserde-91d30733711c97b5.rlib" "/opt/rustwide/target/debug/deps/libhttp-892d82da048fa32e.rlib" "/opt/rustwide/target/debug/deps/libitoa-a9910cb6817ea53c.rlib" "/opt/rustwide/target/debug/deps/libfnv-81254b20febae08d.rlib" "/opt/rustwide/target/debug/deps/libbytes-370fd1f4e178c1a8.rlib" "/opt/rustwide/target/debug/deps/libiovec-7c382e20259ef1f1.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-f77409651a8445c6.rlib" "/opt/rustwide/target/debug/deps/liblog-dcba4b6547116a50.rlib" "/opt/rustwide/target/debug/deps/libfailure-9cfa190e578e474a.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-8101d06dbb675891.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-7659288da3fe9ecd.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-1dc1633c5393b905.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-55872d12948ebe29.rlib" "/opt/rustwide/target/debug/deps/liblibc-99eb49759f94b4f4.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-c3adfaf9b4df8d31.rlib(yew-c3adfaf9b4df8d31.yew.9vg60m1b-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-c3adfaf9b4df8d31.rlib(yew-c3adfaf9b4df8d31.yew.9vg60m1b-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-c3adfaf9b4df8d31.rlib(yew-c3adfaf9b4df8d31.yew.9vg60m1b-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-c3adfaf9b4df8d31.rlib(yew-c3adfaf9b4df8d31.yew.9vg60m1b-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-c3adfaf9b4df8d31.rlib(yew-c3adfaf9b4df8d31.yew.9vg60m1b-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-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.1.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/src/webcore/macros.rs:91: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.4.rcgu.o): in function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.12/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-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.4.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-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.4.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-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.4.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-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.4.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-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.4.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-be2833e14df1a5ad.rlib(stdweb-be2833e14df1a5ad.stdweb.9hj1r9cp-cgu.4.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" "bd3e3df9035f871fb97719448545b8d2579379fdb75130f485c59021d518c429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3e3df9035f871fb97719448545b8d2579379fdb75130f485c59021d518c429", kill_on_drop: false }`
[INFO] [stdout] bd3e3df9035f871fb97719448545b8d2579379fdb75130f485c59021d518c429