[INFO] updating cached repository https://github.com/aidanhs/slow-ref-stdweb-example
[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] 3fe6f72f6dd92ca0027a4334e1f00124fee9a74f
[INFO] testing aidanhs/slow-ref-stdweb-example against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Faidanhs%2Fslow-ref-stdweb-example" "work/builds/worker-10/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aidanhs/slow-ref-stdweb-example 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/aidanhs/slow-ref-stdweb-example
[INFO] finished tweaking git repo https://github.com/aidanhs/slow-ref-stdweb-example
[INFO] tweaked toml for git repo https://github.com/aidanhs/slow-ref-stdweb-example written to work/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/aidanhs/slow-ref-stdweb-example 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-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/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] f5cbab30f2118d2f7cba1e0813189237081cc324a9cb9ac078ac63ffcd65b965
[INFO] running `"docker" "start" "-a" "f5cbab30f2118d2f7cba1e0813189237081cc324a9cb9ac078ac63ffcd65b965"`
[INFO] [stderr]    Compiling serde v1.0.59
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling stdweb v0.4.6
[INFO] [stderr]    Compiling discard v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling bytes v0.4.7
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling quote v0.6.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling syn v0.14.0
[INFO] [stderr]    Compiling http v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_derive v1.0.59
[INFO] [stderr]    Compiling serde_json v1.0.17
[INFO] [stderr]    Compiling stdweb-derive v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.7
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling yew v0.4.0 (https://github.com/DenisKolodin/yew.git?rev=f392d7e#f392d7ef)
[INFO] [stderr]    Compiling web_logger v0.1.0
[INFO] [stderr]    Compiling logobble-dataflow-page v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `env`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let env = app.mount(elt);
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_env`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `env`
[INFO] [stderr]   --> src/main.rs:78:46
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn update(&mut self, msg: Self::Message, env: &mut Env<CTX, Self>) -> ShouldRender {
[INFO] [stderr]    |                                              ^^^ help: consider prefixing with an underscore: `_env`
[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/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0" "/opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.jbgiaap7owxxv54.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-6c4e74059b3e3bfe/out/.libs" "-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/libyew-dc58e5a748b05b7f.rlib" "/opt/rustwide/target/debug/deps/libhttp-d99e8bf49f99cd82.rlib" "/opt/rustwide/target/debug/deps/libfnv-593caa3c2629b83d.rlib" "/opt/rustwide/target/debug/deps/libbytes-a4b104ffb49178ec.rlib" "/opt/rustwide/target/debug/deps/libiovec-c650807270e7d699.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-15d101da604ba292.rlib" "/opt/rustwide/target/debug/deps/libfailure-8e750cdc1464965e.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-b7fcb8a7f9a86a48.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-55606f771b43a533.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-1eedf8fdeacbe059.rlib" "/opt/rustwide/target/debug/deps/liblibc-5fbdaf22b01b8e59.rlib" "/opt/rustwide/target/debug/deps/libweb_logger-7c4bd86dc31f75fa.rlib" "/opt/rustwide/target/debug/deps/libstdweb-797887f47b50b141.rlib" "/opt/rustwide/target/debug/deps/libdiscard-c47abdd0105b3923.rlib" "/opt/rustwide/target/debug/deps/libserde_json-5737a2577f012592.rlib" "/opt/rustwide/target/debug/deps/libitoa-73878477fad7415c.rlib" "/opt/rustwide/target/debug/deps/libdtoa-056fe719c09c0198.rlib" "/opt/rustwide/target/debug/deps/libserde-5d98962f91e21045.rlib" "/opt/rustwide/target/debug/deps/liblog-53bf8bbb9abf67aa.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-f01a36473a8c8e63.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/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.1.rcgu.o: In function `stdweb::webapi::node::INode::append_child':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/src/webcore/macros.rs:34: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.1.rcgu.o: In function `stdweb::webapi::node::INode::append_child':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/src/webcore/macros.rs:34: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.1.rcgu.o: In function `stdweb::webapi::node::INode::append_child':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/src/webcore/macros.rs:34: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.1.rcgu.o: In function `stdweb::webapi::node::INode::next_sibling':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/src/webcore/macros.rs:34: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.1.rcgu.o: In function `stdweb::webapi::node::INode::remove_child':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/src/webcore/macros.rs:34: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/logobble_dataflow_page-2af58a0bbeedc2b0.logobble_dataflow_page.9jz7tcr5-cgu.1.rcgu.o:/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/src/webcore/macros.rs:34: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-797887f47b50b141.rlib(stdweb-797887f47b50b141.stdweb.8x1o0l0h-cgu.6.rcgu.o): In function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/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-0.4.6/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stderr]           /opt/rustwide/target/debug/deps/libstdweb-797887f47b50b141.rlib(stdweb-797887f47b50b141.stdweb.8x1o0l0h-cgu.8.rcgu.o): In function `<stdweb::webcore::object::Object as core::convert::From<&alloc::collections::btree::map::BTreeMap<K,V>>>::from':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.6/src/webcore/object.rs:68: undefined reference to `emscripten_asm_const_int'
[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 `logobble-dataflow-page`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f5cbab30f2118d2f7cba1e0813189237081cc324a9cb9ac078ac63ffcd65b965"`
[INFO] running `"docker" "rm" "-f" "f5cbab30f2118d2f7cba1e0813189237081cc324a9cb9ac078ac63ffcd65b965"`
[INFO] [stdout] f5cbab30f2118d2f7cba1e0813189237081cc324a9cb9ac078ac63ffcd65b965