[INFO] updating cached repository MichaelBurge/nes-emulator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MichaelBurge/nes-emulator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MichaelBurge/nes-emulator" "work/ex/beta-1.37-6/sources/1.36.0/gh/MichaelBurge/nes-emulator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/MichaelBurge/nes-emulator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MichaelBurge/nes-emulator" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MichaelBurge/nes-emulator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MichaelBurge/nes-emulator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c0d47f0a7285c4305c5f578b87fb90103cfdb5e8
[INFO] sha for GitHub repo MichaelBurge/nes-emulator: c0d47f0a7285c4305c5f578b87fb90103cfdb5e8
[INFO] validating manifest of MichaelBurge/nes-emulator 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 MichaelBurge/nes-emulator 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 MichaelBurge/nes-emulator
[INFO] finished frobbing MichaelBurge/nes-emulator
[INFO] frobbed toml for MichaelBurge/nes-emulator written to work/ex/beta-1.37-6/sources/1.36.0/gh/MichaelBurge/nes-emulator/Cargo.toml
[INFO] started frobbing MichaelBurge/nes-emulator
[INFO] finished frobbing MichaelBurge/nes-emulator
[INFO] frobbed toml for MichaelBurge/nes-emulator written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MichaelBurge/nes-emulator/Cargo.toml
[INFO] crate MichaelBurge/nes-emulator already has a lockfile, it will not be regenerated
[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 MichaelBurge/nes-emulator against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/MichaelBurge/nes-emulator:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 243e2b9df8a9439db964612586dc0253514b6f40b2783895f60655a4978ef57a
[INFO] running `"docker" "start" "-a" "243e2b9df8a9439db964612586dc0253514b6f40b2783895f60655a4978ef57a"`
[INFO] [stderr]    Compiling sdl2-sys v0.32.5
[INFO] [stderr]    Compiling sdl2 v0.32.1
[INFO] [stderr]    Compiling nes-emulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/serialization.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         for i in 0..len {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/serialization.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         for i in 0..len {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `record_tas`
[INFO] [stderr]   --> src/headless.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |         let mut record_tas = self.read_byte();
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_record_tas`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/serialization.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         for i in 0..len {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/headless.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut nes = None;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/headless.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         let mut record_tas = self.read_byte();
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/serialization.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         for i in 0..len {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] 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/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417" "/opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.1vtrocxpllhc4cqw.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libsdl2-0ae47b33240b9085.rlib" "/opt/crater/target/debug/deps/librand-1959034b3506f590.rlib" "/opt/crater/target/debug/deps/librand_xorshift-6a66fc50e6498d00.rlib" "/opt/crater/target/debug/deps/librand_pcg-60ef83adabd8d47a.rlib" "/opt/crater/target/debug/deps/librand_hc-83283ab0a0ee3df8.rlib" "/opt/crater/target/debug/deps/librand_chacha-b9f5abd1824a7f75.rlib" "/opt/crater/target/debug/deps/librand_isaac-94fc18115e9afd61.rlib" "/opt/crater/target/debug/deps/librand_core-482fdfb44fe03c92.rlib" "/opt/crater/target/debug/deps/librand_os-0f15c87582ed0aff.rlib" "/opt/crater/target/debug/deps/librand_jitter-4e4a4328edc945b8.rlib" "/opt/crater/target/debug/deps/librand_core-a9179eebc82cf0f0.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-2f8d2928f3ea8e82.rlib" "/opt/crater/target/debug/deps/libbitflags-6f632fff558bf385.rlib" "/opt/crater/target/debug/deps/liblazy_static-35422c5bca3b6d90.rlib" "/opt/crater/target/debug/deps/liblibc-e769383495013c75.rlib" "/opt/crater/target/debug/deps/libnum-558d8b228c2ea06c.rlib" "/opt/crater/target/debug/deps/libnum_iter-a7210c4b115aa645.rlib" "/opt/crater/target/debug/deps/libnum_integer-b313e99b23f6e865.rlib" "/opt/crater/target/debug/deps/libnum_traits-cd98387e0f6e90f9.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/nes_emulator-9456c6d8eb40e417.nes_emulator.4bj4dogb-cgu.5.rcgu.o: In function `nes_emulator::main':
[INFO] [stderr]           /opt/crater/workdir/src/main.rs:168: 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 `nes-emulator`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "243e2b9df8a9439db964612586dc0253514b6f40b2783895f60655a4978ef57a"`
[INFO] running `"docker" "rm" "-f" "243e2b9df8a9439db964612586dc0253514b6f40b2783895f60655a4978ef57a"`
[INFO] [stdout] 243e2b9df8a9439db964612586dc0253514b6f40b2783895f60655a4978ef57a