[INFO] cloning repository https://github.com/jackyzhen/rust-vs-go-slides
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackyzhen/rust-vs-go-slides" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackyzhen%2Frust-vs-go-slides", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackyzhen%2Frust-vs-go-slides'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aab94ec37548c57d445ea7438359d3f1e66f0988
[INFO] testing jackyzhen/rust-vs-go-slides against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackyzhen%2Frust-vs-go-slides" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackyzhen/rust-vs-go-slides on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jackyzhen/rust-vs-go-slides
[INFO] finished tweaking git repo https://github.com/jackyzhen/rust-vs-go-slides
[INFO] tweaked toml for git repo https://github.com/jackyzhen/rust-vs-go-slides written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jackyzhen/rust-vs-go-slides already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 167a31da7ee2addb3d19b2b501574f30881086973f6313c6adeec325ac94065f
[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" "167a31da7ee2addb3d19b2b501574f30881086973f6313c6adeec325ac94065f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "167a31da7ee2addb3d19b2b501574f30881086973f6313c6adeec325ac94065f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "167a31da7ee2addb3d19b2b501574f30881086973f6313c6adeec325ac94065f", kill_on_drop: false }`
[INFO] [stdout] 167a31da7ee2addb3d19b2b501574f30881086973f6313c6adeec325ac94065f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1eb3f90709127abe0c337612b356bcb06dadf7de1fa111b10a211bbea458b372
[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" "1eb3f90709127abe0c337612b356bcb06dadf7de1fa111b10a211bbea458b372", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdweb v0.4.8
[INFO] [stderr]    Compiling discard v1.0.3
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling serde_json v1.0.24
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling http v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]    Compiling stdweb-derive v0.4.0
[INFO] [stderr]    Compiling yew v0.5.0 (https://github.com/DenisKolodin/yew?rev=b957f8778ebb3ce88a6d10dfb41f04a4e44d6640#b957f877)
[INFO] [stderr]    Compiling rust-vs-go-slides v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/model.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub handler: Option<Box<Task>>,
[INFO] [stdout]    |                             ^^^^ help: use `dyn`: `dyn Task`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[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/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.4qpoaa2vtb25qrjy.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-29ba3e459db0129b/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librust_vs_go_slides-3b56ee1000866e88.rlib" "/opt/rustwide/target/debug/deps/libpulldown_cmark-47ad9fb99da2383e.rlib" "/opt/rustwide/target/debug/deps/libbitflags-8022bcf3ce8fd356.rlib" "/opt/rustwide/target/debug/deps/libyew-fd98e08e8ce3c6ce.rlib" "/opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib" "/opt/rustwide/target/debug/deps/libdiscard-58208c9de54a35e7.rlib" "/opt/rustwide/target/debug/deps/libslab-ad3ee0f22d6e2367.rlib" "/opt/rustwide/target/debug/deps/libanymap-b9768cc292968a96.rlib" "/opt/rustwide/target/debug/deps/libbincode-fbee72da5d3401f8.rlib" "/opt/rustwide/target/debug/deps/libserde_json-25c8cfc694c6c140.rlib" "/opt/rustwide/target/debug/deps/libdtoa-1c14135160fd8ea5.rlib" "/opt/rustwide/target/debug/deps/libserde-a97b55e149a9f6db.rlib" "/opt/rustwide/target/debug/deps/libhttp-ccd1ca18badbf308.rlib" "/opt/rustwide/target/debug/deps/libitoa-3ded5a20740d32f2.rlib" "/opt/rustwide/target/debug/deps/libfnv-6f4452e033ff10c8.rlib" "/opt/rustwide/target/debug/deps/libbytes-62e419795f9e9f54.rlib" "/opt/rustwide/target/debug/deps/libiovec-f577b963ad5b7c86.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-f570f72f2e3a5dc9.rlib" "/opt/rustwide/target/debug/deps/liblog-9aa593aaba564f29.rlib" "/opt/rustwide/target/debug/deps/libfailure-5c77a17be05aa28e.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-fcc17bf87e4a5eaa.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-a0e7a0621081e03f.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-0a32c0aba44e933d.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-3f7a66533414a6ec.rlib" "/opt/rustwide/target/debug/deps/liblibc-853b6cb442b1724a.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2420485b9e5ef5e1.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-785e3cb61c4b1960.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-087191a88bdaa22d.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9981842c02975178.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-6fb405869b015fde.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d05c5c3c56004b7b.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-42d74d2097528b38.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-fb36534c113d2209.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-b56b9042c12b6535.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-491902d6cb3e76df.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-61834e0981b8c367.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-f78aa99d613a55bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-53ee54cd7fed2c57.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-544ecdbd6cda3c58.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-379cc252b6943a79.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8063eea38dcc5e62.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5b228734afae15ee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d6c7a399d95d173f.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/rust_vs_go_slides-91e0ee6c8c6a39ce.rust_vs_go_slides.cuyd37u2-cgu.3.rcgu.o: in function `stdweb::webapi::parent_node::IParentNode::query_selector':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/parent_node.rs:23: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/librust_vs_go_slides-3b56ee1000866e88.rlib(rust_vs_go_slides-3b56ee1000866e88.rust_vs_go_slides.1gqtn43f-cgu.13.rcgu.o): in function `<stdweb::webapi::html_elements::textarea::TextAreaElement as stdweb::webcore::instance_of::InstanceOf>::instance_of':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/html_elements/textarea.rs:12: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/librust_vs_go_slides-3b56ee1000866e88.rlib(rust_vs_go_slides-3b56ee1000866e88.rust_vs_go_slides.1gqtn43f-cgu.13.rcgu.o): in function `stdweb::webapi::html_elements::textarea::TextAreaElement::set_value':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/html_elements/textarea.rs:36: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/librust_vs_go_slides-3b56ee1000866e88.rlib(rust_vs_go_slides-3b56ee1000866e88.rust_vs_go_slides.1gqtn43f-cgu.14.rcgu.o): in function `<stdweb::webapi::html_elements::input::InputElement as stdweb::webcore::instance_of::InstanceOf>::instance_of':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/html_elements/input.rs:13: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/librust_vs_go_slides-3b56ee1000866e88.rlib(rust_vs_go_slides-3b56ee1000866e88.rust_vs_go_slides.1gqtn43f-cgu.14.rcgu.o): in function `stdweb::webapi::html_elements::input::InputElement::set_raw_value':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/html_elements/input.rs:37: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/librust_vs_go_slides-3b56ee1000866e88.rlib(rust_vs_go_slides-3b56ee1000866e88.rust_vs_go_slides.1gqtn43f-cgu.15.rcgu.o):/opt/rustwide/workdir/src/markdown.rs:84: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib(stdweb-443e054552baefe8.stdweb.ct265mi8-cgu.5.rcgu.o): in function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/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-0.4.8/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib(stdweb-443e054552baefe8.stdweb.ct265mi8-cgu.6.rcgu.o): in function `stdweb::webapi::token_list::TokenList::add':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/token_list.rs:27: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib(stdweb-443e054552baefe8.stdweb.ct265mi8-cgu.6.rcgu.o): in function `stdweb::webapi::token_list::TokenList::remove':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/token_list.rs:39: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib(stdweb-443e054552baefe8.stdweb.ct265mi8-cgu.8.rcgu.o): in function `stdweb::webapi::event_target::EventListenerHandle::remove':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webapi/event_target.rs:29: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib(stdweb-443e054552baefe8.stdweb.ct265mi8-cgu.9.rcgu.o): in function `stdweb::webcore::initialization::initialize':
[INFO] [stdout]           /opt/rustwide/target/debug/build/stdweb-ef521c57daf3b083/out/runtime.rs:1: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib(stdweb-443e054552baefe8.stdweb.ct265mi8-cgu.9.rcgu.o): in function `stdweb::webcore::initialization::initialize::{{closure}}':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webcore/initialization.rs:24: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-443e054552baefe8.rlib(stdweb-443e054552baefe8.stdweb.ct265mi8-cgu.9.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.8/src/webcore/initialization.rs:26: 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 `rust-vs-go-slides`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1eb3f90709127abe0c337612b356bcb06dadf7de1fa111b10a211bbea458b372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb3f90709127abe0c337612b356bcb06dadf7de1fa111b10a211bbea458b372", kill_on_drop: false }`
[INFO] [stdout] 1eb3f90709127abe0c337612b356bcb06dadf7de1fa111b10a211bbea458b372
