[INFO] cloning repository https://github.com/jeff-yeung/huntTheWumpus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeff-yeung/huntTheWumpus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-yeung%2FhuntTheWumpus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-yeung%2FhuntTheWumpus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ff1be5ca0bce2f19aea7aea0b533370a8c60d8e
[INFO] testing jeff-yeung/huntTheWumpus against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-yeung%2FhuntTheWumpus" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeff-yeung/huntTheWumpus on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeff-yeung/huntTheWumpus
[INFO] finished tweaking git repo https://github.com/jeff-yeung/huntTheWumpus
[INFO] tweaked toml for git repo https://github.com/jeff-yeung/huntTheWumpus written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jeff-yeung/huntTheWumpus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8768c7a8adcb8b425e84d2aca6c6c4c899df5bef1446d63f57958d2a1bdd478
[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" "e8768c7a8adcb8b425e84d2aca6c6c4c899df5bef1446d63f57958d2a1bdd478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8768c7a8adcb8b425e84d2aca6c6c4c899df5bef1446d63f57958d2a1bdd478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8768c7a8adcb8b425e84d2aca6c6c4c899df5bef1446d63f57958d2a1bdd478", kill_on_drop: false }`
[INFO] [stdout] e8768c7a8adcb8b425e84d2aca6c6c4c899df5bef1446d63f57958d2a1bdd478
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3f505237c49fdc5748b5ea328d2cef141c8741bae0a1cceb08cc203a94f521b
[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" "d3f505237c49fdc5748b5ea328d2cef141c8741bae0a1cceb08cc203a94f521b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.4
[INFO] [stderr]    Compiling base-x v0.2.5
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling yew v0.8.0
[INFO] [stderr]    Compiling yew-macro v0.8.0
[INFO] [stderr]    Compiling stdweb v0.4.18
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling hunt_the_wumpus 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/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.hunt.b8213pql-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45" "/opt/rustwide/target/debug/deps/hunt-7dd16d0977677b45.ktfnq4c5iyze58b.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-1d8d9dcef78983b7/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libhunt_the_wumpus-3b162d42517950e3.rlib" "/opt/rustwide/target/debug/deps/libyew-9e1e1f604c0354e4.rlib" "/opt/rustwide/target/debug/deps/libproc_macro_nested-e32e2b1750fbc0ea.rlib" "/opt/rustwide/target/debug/deps/libindexmap-59187502c7313612.rlib" "/opt/rustwide/target/debug/deps/libhttp-eca244a8b430f25e.rlib" "/opt/rustwide/target/debug/deps/libfnv-f34a80f1f2884e58.rlib" "/opt/rustwide/target/debug/deps/libbytes-0e2fdc8d97a86f07.rlib" "/opt/rustwide/target/debug/deps/libiovec-ca0afb6125401cd0.rlib" "/opt/rustwide/target/debug/deps/libfailure-df7a719c6cb9efdc.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-dd44f1bea18eaf53.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-069dee9e5d066d2b.rlib" "/opt/rustwide/target/debug/deps/liblibc-3ae96693a4881a0d.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-62310dac5ec68432.rlib" "/opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib" "/opt/rustwide/target/debug/deps/libdiscard-8c304c4ed57889f5.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-ec2ad82401f5bee7.rlib" "/opt/rustwide/target/debug/deps/libserde_json-1a428a75fa2558bd.rlib" "/opt/rustwide/target/debug/deps/libryu-5ff9f6938685d4e7.rlib" "/opt/rustwide/target/debug/deps/libitoa-d5a63dfb88a1c172.rlib" "/opt/rustwide/target/debug/deps/libslab-2ac6dc832fffd6a6.rlib" "/opt/rustwide/target/debug/deps/liblog-929326792e1e5fdf.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-798640aaaf2e4a53.rlib" "/opt/rustwide/target/debug/deps/libbincode-72c327a6a5149aaf.rlib" "/opt/rustwide/target/debug/deps/libserde-f9e4b7ba2a719e60.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-6e2b66ea17cbcfed.rlib" "/opt/rustwide/target/debug/deps/libanymap-6bbd4a7bd711f443.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-f14aca24435a5414.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-48d342a8b48d1d01.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-14bc0820888c8eb3.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9cbd9e217bff06bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-31826136df98934e.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-075976a117c8fd5d.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2d5cbedfbf17a011.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0474372ff08c5319.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d437c34460d2315a.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-fb61ed1b8cc4de79.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bf76d1b643bfc9f0.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a1b53aa7fddcf418.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-28585e57fac45c73.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64801769bc15ab28.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-541997b56bb98660.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cdea3c81adab3d12.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-cd9f15a39fb65cbc.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-9e1e1f604c0354e4.rlib(yew-9e1e1f604c0354e4.yew.eqploqz6-cgu.10.rcgu.o): in function `yew::virtual_dom::vtag::VTag<COMP>::apply_diffs::snippet::__cargo_web_snippet_0da47658267a7497de743e1b0892f992ba6ca6ef':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.18/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-9e1e1f604c0354e4.rlib(yew-9e1e1f604c0354e4.yew.eqploqz6-cgu.10.rcgu.o): in function `yew::virtual_dom::vtag::VTag<COMP>::apply_diffs::snippet::__cargo_web_snippet_6a77b2f2accec26fefbfa0d864061d26f40f8f6f':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.18/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-9e1e1f604c0354e4.rlib(yew-9e1e1f604c0354e4.yew.eqploqz6-cgu.10.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-0.4.18/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-9e1e1f604c0354e4.rlib(yew-9e1e1f604c0354e4.yew.eqploqz6-cgu.10.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-0.4.18/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-9e1e1f604c0354e4.rlib(yew-9e1e1f604c0354e4.yew.eqploqz6-cgu.10.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-0.4.18/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.11.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.18/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-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.3.rcgu.o): in function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.18/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-0.4.18/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.6.rcgu.o): in function `stdweb::webcore::value::Reference::from_raw_unchecked::snippet::__cargo_web_snippet_9f22d4ca7bc938409787341b7db181f8dd41e6df':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.18/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.6.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/github.com-1ecc6299db9ec823/stdweb-0.4.18/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.6.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-0.4.18/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.6.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-0.4.18/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.6.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-0.4.18/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-21b9674881a98c72.rlib(stdweb-21b9674881a98c72.stdweb.179h05xo-cgu.6.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.18/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 `hunt_the_wumpus`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d3f505237c49fdc5748b5ea328d2cef141c8741bae0a1cceb08cc203a94f521b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f505237c49fdc5748b5ea328d2cef141c8741bae0a1cceb08cc203a94f521b", kill_on_drop: false }`
[INFO] [stdout] d3f505237c49fdc5748b5ea328d2cef141c8741bae0a1cceb08cc203a94f521b
