[INFO] updating cached repository https://github.com/mabruckner/mathland
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0300787f6e0bf4b369640848341e08536843a9a
[INFO] testing mabruckner/mathland against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmabruckner%2Fmathland" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mabruckner/mathland on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mabruckner/mathland
[INFO] finished tweaking git repo https://github.com/mabruckner/mathland
[INFO] tweaked toml for git repo https://github.com/mabruckner/mathland written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mabruckner/mathland already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 008bee8f6e936f6975fbd860cb4fabeda9c56ea6c3e8652b593b961412ca2ea7
[INFO] running `"docker" "start" "-a" "008bee8f6e936f6975fbd860cb4fabeda9c56ea6c3e8652b593b961412ca2ea7"`
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.3
[INFO] [stderr]    Compiling base-x v0.2.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling stdweb v0.4.15
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.6
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling yew v0.7.0 (https://github.com/mabruckner/yew.git?branch=svg-hack#b69be1d5)
[INFO] [stderr]    Compiling mathland v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/enemy.rs:76:19
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub card: Box<EnemyCard>,
[INFO] [stderr]    |                   ^^^^^^^^^ help: use `dyn`: `dyn EnemyCard`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/enemy.rs:93:43
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn generate_problem(&mut self) -> Box<Problem>;
[INFO] [stderr]    |                                           ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/enemy.rs:118:35
[INFO] [stderr]     |
[INFO] [stderr] 118 |         let (name, card): (_, Box<EnemyCard>) = match self.level {
[INFO] [stderr]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn EnemyCard`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/enemy.rs:119:14
[INFO] [stderr]     |
[INFO] [stderr] 119 |             0...3 => ("Circle", Box::new(CircleCard())),
[INFO] [stderr]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/enemy.rs:135:43
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn generate_problem(&mut self) -> Box<Problem> {
[INFO] [stderr]     |                                           ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:80:39
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub obstacles: Vec<([f32; 2], Box<Problem>)>,
[INFO] [stderr]    |                                       ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:29
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub encounters: Vec<Box<Enemy>>,
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Enemy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub enemy: Box<Enemy>,
[INFO] [stderr]     |                    ^^^^^ help: use `dyn`: `dyn Enemy`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:107:29
[INFO] [stderr]     |
[INFO] [stderr] 107 |     pub problem: Option<Box<Problem>>,
[INFO] [stderr]     |                             ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:149:25
[INFO] [stderr]     |
[INFO] [stderr] 149 |     pub _anim_task: Box<Task>,
[INFO] [stderr]     |                         ^^^^ help: use `dyn`: `dyn Task`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.mathland.16p5hk15-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed" "/opt/rustwide/target/debug/deps/mathland-22827839b36ff0ed.40n05xhh3dd66z8f.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-1cfb6d2e5c1b81c1/out" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libmathland-5366e3fa1b16ddea.rlib" "/opt/rustwide/target/debug/deps/libcgmath-f6ca30d18ea81f3d.rlib" "/opt/rustwide/target/debug/deps/libapprox-20c7faf05ba55687.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-96f5ce4bbc698d03.rlib" "/opt/rustwide/target/debug/deps/librand-ef3562f7ea6f1079.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-57eff26591ee1926.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-a1f64ed70102bd13.rlib" "/opt/rustwide/target/debug/deps/librand_hc-79eb2bb135bcf82e.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-ed3231068e4634b4.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-abee9575352963b6.rlib" "/opt/rustwide/target/debug/deps/librand_core-96fcd81fcc1da5a2.rlib" "/opt/rustwide/target/debug/deps/librand_os-a0832b5b6b6f1b66.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-84b04fde051c371f.rlib" "/opt/rustwide/target/debug/deps/librand_core-f46a59bb123ae6e7.rlib" "/opt/rustwide/target/debug/deps/libyew-7bcc8891c1a86313.rlib" "/opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib" "/opt/rustwide/target/debug/deps/libdiscard-846edfb26de9cf45.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-8b5af0ab2f1077d2.rlib" "/opt/rustwide/target/debug/deps/libslab-48da5e5bfb95471c.rlib" "/opt/rustwide/target/debug/deps/libanymap-9b2684f03e561fe5.rlib" "/opt/rustwide/target/debug/deps/libbincode-8a70e418b904f374.rlib" "/opt/rustwide/target/debug/deps/libserde_json-46aa2193feee5e30.rlib" "/opt/rustwide/target/debug/deps/libryu-241afc8b85942cc5.rlib" "/opt/rustwide/target/debug/deps/libserde-0d67cf44ba7712c6.rlib" "/opt/rustwide/target/debug/deps/libhttp-2f408f418bdc49f9.rlib" "/opt/rustwide/target/debug/deps/libitoa-1c480b98c3ffabe1.rlib" "/opt/rustwide/target/debug/deps/libfnv-593caa3c2629b83d.rlib" "/opt/rustwide/target/debug/deps/libbytes-773db1d8df7251e5.rlib" "/opt/rustwide/target/debug/deps/libiovec-6ac2685f628a005a.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-b551d4293eeff0ab.rlib" "/opt/rustwide/target/debug/deps/liblog-ad24cce9d8e02d74.rlib" "/opt/rustwide/target/debug/deps/libfailure-f1240732ee5cb21f.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-cd11a447ddd6e021.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-453054be1604fbe5.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-d6299ec918f912e0.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-7e9b153d55b90d49.rlib" "/opt/rustwide/target/debug/deps/liblibc-1c28ef2f9e63f828.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-db812c66f862af4c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e7871a21575d5ff7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-2f2c581bc0d759e6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-35731cabc05dc8a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-36477394541292db.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-8b706b170c1272d8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-801dbb3043ccf581.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-a32aa66ce6f72b21.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d00ea3bfb2bb6c00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d2c6ebe88c3e113c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-df74f62f6bb60621.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2170473575daeedb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1a08089bbddc4f51.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f8f562e5472ad5c3.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/rustwide/target/debug/deps/libyew-7bcc8891c1a86313.rlib(yew-7bcc8891c1a86313.yew.1hwm3htu-cgu.11.rcgu.o): In function `yew::virtual_dom::vtag::VTag<COMP>::apply_diffs::snippet::__cargo_web_snippet_0da47658267a7497de743e1b0892f992ba6ca6ef':
[INFO] [stderr]           /opt/rustwide/cargo-home/git/checkouts/yew-d37ecb2b9a8c5778/b69be1d/<::stdweb::webcore::macros::_js_impl macros>:35: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libyew-7bcc8891c1a86313.rlib(yew-7bcc8891c1a86313.yew.1hwm3htu-cgu.11.rcgu.o): In function `yew::virtual_dom::vtag::VTag<COMP>::apply_diffs::snippet::__cargo_web_snippet_6a77b2f2accec26fefbfa0d864061d26f40f8f6f':
[INFO] [stderr]           /opt/rustwide/cargo-home/git/checkouts/yew-d37ecb2b9a8c5778/b69be1d/<::stdweb::webcore::macros::_js_impl macros>:35: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libyew-7bcc8891c1a86313.rlib(yew-7bcc8891c1a86313.yew.1hwm3htu-cgu.11.rcgu.o): In function `yew::virtual_dom::vtag::set_attribute::snippet::__cargo_web_snippet_da2febd72f9938d90bc2bf2905643f595b07abd9':
[INFO] [stderr]           /opt/rustwide/cargo-home/git/checkouts/yew-d37ecb2b9a8c5778/b69be1d/<::stdweb::webcore::macros::_js_impl macros>:35: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libyew-7bcc8891c1a86313.rlib(yew-7bcc8891c1a86313.yew.1hwm3htu-cgu.11.rcgu.o): In function `yew::virtual_dom::vtag::remove_attribute::snippet::__cargo_web_snippet_f6358c198ebcc61c9da370cca2679c0b8bc81a7b':
[INFO] [stderr]           /opt/rustwide/cargo-home/git/checkouts/yew-d37ecb2b9a8c5778/b69be1d/<::stdweb::webcore::macros::_js_impl macros>:35: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libyew-7bcc8891c1a86313.rlib(yew-7bcc8891c1a86313.yew.1hwm3htu-cgu.11.rcgu.o): In function `yew::virtual_dom::vtag::set_checked::snippet::__cargo_web_snippet_a1f43b583e011a9bbeae64030b81f677e6c29005':
[INFO] [stderr]           /opt/rustwide/cargo-home/git/checkouts/yew-d37ecb2b9a8c5778/b69be1d/<::stdweb::webcore::macros::_js_impl macros>:35: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libyew-7bcc8891c1a86313.rlib(yew-7bcc8891c1a86313.yew.1hwm3htu-cgu.3.rcgu.o):/opt/rustwide/cargo-home/git/checkouts/yew-d37ecb2b9a8c5778/b69be1d/<::stdweb::webcore::macros::_js_impl macros>:45: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib(stdweb-dc47c6a129d08ff2.stdweb.8abm275u-cgu.10.rcgu.o): In function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/ffi/emscripten.rs:9: undefined reference to `emscripten_pause_main_loop'
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib(stdweb-dc47c6a129d08ff2.stdweb.8abm275u-cgu.10.rcgu.o): In function `stdweb::webcore::value::Reference::from_raw_unchecked::snippet::__cargo_web_snippet_9f22d4ca7bc938409787341b7db181f8dd41e6df':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib(stdweb-dc47c6a129d08ff2.stdweb.8abm275u-cgu.10.rcgu.o): In function `<stdweb::webcore::value::Reference as core::ops::drop::Drop>::drop::snippet::__cargo_web_snippet_80d6d56760c65e49b7be8b6b01c1ea861b046bf0':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib(stdweb-dc47c6a129d08ff2.stdweb.8abm275u-cgu.10.rcgu.o): In function `stdweb::webapi::window::window::snippet::__cargo_web_snippet_0f503de1d61309643e0e13a7871406891e3691c9':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib(stdweb-dc47c6a129d08ff2.stdweb.8abm275u-cgu.11.rcgu.o): In function `stdweb::webapi::parent_node::IParentNode::query_selector::snippet::__cargo_web_snippet_a152e8d0e8fac5476f30c1d19e4ab217dbcba73d':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib(stdweb-dc47c6a129d08ff2.stdweb.8abm275u-cgu.11.rcgu.o): In function `stdweb::webapi::parent_node::IParentNode::query_selector::snippet::__cargo_web_snippet_b06dde4acf09433b5190a4b001259fe5d4abcbc2':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-dc47c6a129d08ff2.rlib(stdweb-dc47c6a129d08ff2.stdweb.8abm275u-cgu.11.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:101: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `mathland`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "008bee8f6e936f6975fbd860cb4fabeda9c56ea6c3e8652b593b961412ca2ea7"`
[INFO] running `"docker" "rm" "-f" "008bee8f6e936f6975fbd860cb4fabeda9c56ea6c3e8652b593b961412ca2ea7"`
[INFO] [stdout] 008bee8f6e936f6975fbd860cb4fabeda9c56ea6c3e8652b593b961412ca2ea7