[INFO] fetching crate stdweb 0.4.18...
[INFO] extracting crate stdweb 0.4.18 into work/ex/beta-1.37-6/sources/1.36.0/reg/stdweb/0.4.18
[INFO] extracting crate stdweb 0.4.18 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/stdweb/0.4.18
[INFO] validating manifest of stdweb-0.4.18 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stdweb-0.4.18 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stdweb-0.4.18
[INFO] finished frobbing stdweb-0.4.18
[INFO] frobbed toml for stdweb-0.4.18 written to work/ex/beta-1.37-6/sources/1.36.0/reg/stdweb/0.4.18/Cargo.toml
[INFO] started frobbing stdweb-0.4.18
[INFO] finished frobbing stdweb-0.4.18
[INFO] frobbed toml for stdweb-0.4.18 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/stdweb/0.4.18/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stdweb-0.4.18 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/stdweb/0.4.18:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 48c5feb722685962b31c39cf50f8aba7613265760d42614f6b53539d5a745ffa
[INFO] running `"docker" "start" "-a" "48c5feb722685962b31c39cf50f8aba7613265760d42614f6b53539d5a745ffa"`
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.4
[INFO] [stderr]    Compiling base-x v0.2.5
[INFO] [stderr]    Compiling stdweb v0.4.18 (/opt/crater/workdir)
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.7
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/node.rs:347:1
[INFO] [stderr]     |
[INFO] [stderr] 347 |   /// Errors thrown by `Node` insertion methods.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 348 | / error_enum_boilerplate! {
[INFO] [stderr] 349 | |     InsertNodeError,
[INFO] [stderr] 350 | |     NotFoundError, HierarchyRequestError
[INFO] [stderr] 351 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/element.rs:302:1
[INFO] [stderr]     |
[INFO] [stderr] 302 |   /// Errors thrown by `Element::insert_adjacent_html`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 303 | / error_enum_boilerplate! {
[INFO] [stderr] 304 | |     InsertAdjacentError,
[INFO] [stderr] 305 | |     NoModificationAllowedError, SyntaxError
[INFO] [stderr] 306 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/web_socket.rs:280:1
[INFO] [stderr]     |
[INFO] [stderr] 280 |   /// Errors thrown by `WebSocket::new`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 281 | / error_enum_boilerplate! {
[INFO] [stderr] 282 | |     CreationError,
[INFO] [stderr] 283 | |     SecurityError, SyntaxError
[INFO] [stderr] 284 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/web_socket.rs:286:1
[INFO] [stderr]     |
[INFO] [stderr] 286 |   /// Errors thrown by `WebSocket::close_with_status`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 287 | / error_enum_boilerplate! {
[INFO] [stderr] 288 | |     CloseError,
[INFO] [stderr] 289 | |     InvalidAccessError, SyntaxError
[INFO] [stderr] 290 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/webcore/promise.rs:315:5
[INFO] [stderr]     |
[INFO] [stderr] 315 |     pub(crate) fn new( promise: Promise ) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.03s
[INFO] running `"docker" "inspect" "48c5feb722685962b31c39cf50f8aba7613265760d42614f6b53539d5a745ffa"`
[INFO] running `"docker" "rm" "-f" "48c5feb722685962b31c39cf50f8aba7613265760d42614f6b53539d5a745ffa"`
[INFO] [stdout] 48c5feb722685962b31c39cf50f8aba7613265760d42614f6b53539d5a745ffa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/stdweb/0.4.18:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] c4e4b7153877be990bcb0c6610e0aa418b8535f6aa290a397ac903951cc7b14a
[INFO] running `"docker" "start" "-a" "c4e4b7153877be990bcb0c6610e0aa418b8535f6aa290a397ac903951cc7b14a"`
[INFO] [stderr]    Compiling stdweb v0.4.18 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/node.rs:347:1
[INFO] [stderr]     |
[INFO] [stderr] 347 |   /// Errors thrown by `Node` insertion methods.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 348 | / error_enum_boilerplate! {
[INFO] [stderr] 349 | |     InsertNodeError,
[INFO] [stderr] 350 | |     NotFoundError, HierarchyRequestError
[INFO] [stderr] 351 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/element.rs:302:1
[INFO] [stderr]     |
[INFO] [stderr] 302 |   /// Errors thrown by `Element::insert_adjacent_html`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 303 | / error_enum_boilerplate! {
[INFO] [stderr] 304 | |     InsertAdjacentError,
[INFO] [stderr] 305 | |     NoModificationAllowedError, SyntaxError
[INFO] [stderr] 306 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/web_socket.rs:280:1
[INFO] [stderr]     |
[INFO] [stderr] 280 |   /// Errors thrown by `WebSocket::new`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 281 | / error_enum_boilerplate! {
[INFO] [stderr] 282 | |     CreationError,
[INFO] [stderr] 283 | |     SecurityError, SyntaxError
[INFO] [stderr] 284 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/webapi/web_socket.rs:286:1
[INFO] [stderr]     |
[INFO] [stderr] 286 |   /// Errors thrown by `WebSocket::close_with_status`.
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 287 | / error_enum_boilerplate! {
[INFO] [stderr] 288 | |     CloseError,
[INFO] [stderr] 289 | |     InvalidAccessError, SyntaxError
[INFO] [stderr] 290 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/webcore/promise.rs:315:5
[INFO] [stderr]     |
[INFO] [stderr] 315 |     pub(crate) fn new( promise: Promise ) -> Self {
[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/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e" "/opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.3m78j3rtf3spsxgk.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-7d9df032c0eb8a14.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-77300aa0d630d98f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-4d48ca12b265d456.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-8869eee15acf0f54.rlib" "/opt/crater/target/debug/deps/libdiscard-57236529d613e1dd.rlib" "/opt/crater/target/debug/deps/libstdweb_internal_runtime-d7272ca4dc7addd7.rlib" "/opt/crater/target/debug/deps/libserde_json-86f23295433fb37c.rlib" "/opt/crater/target/debug/deps/libryu-2328132eba3746b3.rlib" "/opt/crater/target/debug/deps/libitoa-97a946ec35c116e9.rlib" "/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.1.rcgu.o: In function `stdweb::webcore::initialization::initialize::snippet::__cargo_web_snippet_cd8fa1f319db03ff32eea7c79bdb279c430a87ef':
[INFO] [stderr]           /opt/crater/workdir/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.1.rcgu.o: In function `stdweb::webcore::initialization::initialize::{{closure}}::snippet::__cargo_web_snippet_dc2fd915bd92f9e9c6a3bd15174f1414eee3dbaf':
[INFO] [stderr]           /opt/crater/workdir/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.1.rcgu.o: In function `stdweb::webcore::initialization::initialize::{{closure}}::snippet::__cargo_web_snippet_97495987af1720d8a9a923fa4683a7b683e3acd6':
[INFO] [stderr]           /opt/crater/workdir/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.1.rcgu.o: In function `stdweb::webcore::initialization::initialize::{{closure}}::snippet::__cargo_web_snippet_72fc447820458c720c68d0d8e078ede631edd723':
[INFO] [stderr]           /opt/crater/workdir/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.1.rcgu.o: In function `<stdweb::webcore::array::Array as stdweb::webcore::instance_of::InstanceOf>::instance_of::snippet::__cargo_web_snippet_10f5aa3985855124ab83b21d4e9f7297eb496508':
[INFO] [stderr]           /opt/crater/workdir/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stderr]           /opt/crater/target/debug/deps/stdweb-c5b365aa107d900e.stdweb.b6cawsev-cgu.1.rcgu.o:/opt/crater/workdir/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 `stdweb`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c4e4b7153877be990bcb0c6610e0aa418b8535f6aa290a397ac903951cc7b14a"`
[INFO] running `"docker" "rm" "-f" "c4e4b7153877be990bcb0c6610e0aa418b8535f6aa290a397ac903951cc7b14a"`
[INFO] [stdout] c4e4b7153877be990bcb0c6610e0aa418b8535f6aa290a397ac903951cc7b14a