[INFO] updating cached repository hacksu/rust-wasm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hacksu/rust-wasm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hacksu/rust-wasm" "work/ex/beta-1.38-1/sources/1.37.0/gh/hacksu/rust-wasm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hacksu/rust-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hacksu/rust-wasm" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hacksu/rust-wasm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hacksu/rust-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 65497b4b867a7fa9c033c0439759f50fe869b1a3
[INFO] sha for GitHub repo hacksu/rust-wasm: 65497b4b867a7fa9c033c0439759f50fe869b1a3
[INFO] validating manifest of hacksu/rust-wasm on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hacksu/rust-wasm on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hacksu/rust-wasm
[INFO] finished frobbing hacksu/rust-wasm
[INFO] frobbed toml for hacksu/rust-wasm written to work/ex/beta-1.38-1/sources/1.37.0/gh/hacksu/rust-wasm/Cargo.toml
[INFO] started frobbing hacksu/rust-wasm
[INFO] finished frobbing hacksu/rust-wasm
[INFO] frobbed toml for hacksu/rust-wasm written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hacksu/rust-wasm/Cargo.toml
[INFO] crate hacksu/rust-wasm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing hacksu/rust-wasm against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hacksu/rust-wasm:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 05444d18376d1f2c787cd78e74e1b261caefee237c925e74069259fbf8b735f2
[INFO] running `"docker" "start" "-a" "05444d18376d1f2c787cd78e74e1b261caefee237c925e74069259fbf8b735f2"`
[INFO] [stderr]    Compiling rust-wasm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `stdweb::web::*`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use stdweb::web::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     None
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[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/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303" "/opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.57skoicvevzmtfuf.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libyew-38d66829ab397fa1.rlib" "/opt/crater/target/debug/deps/libstdweb-17eaaf78749f1d34.rlib" "/opt/crater/target/debug/deps/libserde_json-2646a89831983895.rlib" "/opt/crater/target/debug/deps/libdtoa-dbece04ab2440d63.rlib" "/opt/crater/target/debug/deps/libitoa-4ba6695a0e6b4a3c.rlib" "/opt/crater/target/debug/deps/libnum_traits-b1a031529aab51a7.rlib" "/opt/crater/target/debug/deps/libserde-dfb5d6c53c0e3b31.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.15.rcgu.o: In function `yew::html::App<MSG>::new':
[INFO] [stderr]           /opt/crater/workdir/<::stdweb::webcore::macros::__js_raw_asm macros>:4: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.15.rcgu.o: In function `yew::html::App<MSG>::mount_to':
[INFO] [stderr]           /opt/crater/workdir/<::stdweb::webcore::macros::__js_raw_asm macros>:4: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.15.rcgu.o: In function `yew::html::AppSender<MSG>::send':
[INFO] [stderr]           /opt/crater/workdir/<::stdweb::webcore::macros::__js_raw_asm macros>:4: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.15.rcgu.o: In function `stdweb::webcore::value::Reference::from_raw_unchecked':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.3.0/src/webcore/macros.rs:48: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.15.rcgu.o: In function `<stdweb::webcore::value::Reference as core::ops::drop::Drop>::drop':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.3.0/src/webcore/macros.rs:48: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/rust_wasm-0baa66f601080303.rust_wasm.54yfcfou-cgu.3.rcgu.o:/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.3.0/src/webcore/macros.rs:48: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stderr]           /opt/crater/target/debug/deps/libstdweb-17eaaf78749f1d34.rlib(stdweb-17eaaf78749f1d34.stdweb.1kustdq4-cgu.7.rcgu.o): In function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.3.0/src/webcore/ffi/emscripten.rs:9: undefined reference to `emscripten_pause_main_loop'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.3.0/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[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 `rust-wasm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "05444d18376d1f2c787cd78e74e1b261caefee237c925e74069259fbf8b735f2"`
[INFO] running `"docker" "rm" "-f" "05444d18376d1f2c787cd78e74e1b261caefee237c925e74069259fbf8b735f2"`
[INFO] [stdout] 05444d18376d1f2c787cd78e74e1b261caefee237c925e74069259fbf8b735f2