[INFO] updating cached repository aconbere/anders-gameboy-emulator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aconbere/anders-gameboy-emulator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aconbere/anders-gameboy-emulator" "work/ex/beta-1.37-6/sources/1.36.0/gh/aconbere/anders-gameboy-emulator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/aconbere/anders-gameboy-emulator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aconbere/anders-gameboy-emulator" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aconbere/anders-gameboy-emulator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aconbere/anders-gameboy-emulator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4c87381272b60c484de4984f1f989f88d99cc252
[INFO] sha for GitHub repo aconbere/anders-gameboy-emulator: 4c87381272b60c484de4984f1f989f88d99cc252
[INFO] validating manifest of aconbere/anders-gameboy-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 aconbere/anders-gameboy-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 aconbere/anders-gameboy-emulator
[INFO] finished frobbing aconbere/anders-gameboy-emulator
[INFO] frobbed toml for aconbere/anders-gameboy-emulator written to work/ex/beta-1.37-6/sources/1.36.0/gh/aconbere/anders-gameboy-emulator/Cargo.toml
[INFO] started frobbing aconbere/anders-gameboy-emulator
[INFO] finished frobbing aconbere/anders-gameboy-emulator
[INFO] frobbed toml for aconbere/anders-gameboy-emulator written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aconbere/anders-gameboy-emulator/Cargo.toml
[INFO] crate aconbere/anders-gameboy-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 aconbere/anders-gameboy-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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/aconbere/anders-gameboy-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] 9681924e8f0529335a4ae20f5194fd567366e0bfba8ffa1f980a6435376126ca
[INFO] running `"docker" "start" "-a" "9681924e8f0529335a4ae20f5194fd567366e0bfba8ffa1f980a6435376126ca"`
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling anders-gameboy-emulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/device/mod.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         _ => panic!("WTF: address: {:X} isn't covered", address),
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WindowTileSelect`
[INFO] [stderr]  --> src/device/hardware_io.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     WindowTileSelect,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WindowDisplayEnable`
[INFO] [stderr]   --> src/device/hardware_io.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     WindowDisplayEnable,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ObjectSize`
[INFO] [stderr]   --> src/device/hardware_io.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     ObjectSize,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ObjectDisplayEnable`
[INFO] [stderr]   --> src/device/hardware_io.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ObjectDisplayEnable,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BackgroundDisplay`
[INFO] [stderr]   --> src/device/hardware_io.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     BackgroundDisplay,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LCDModes`
[INFO] [stderr]   --> src/device/hardware_io.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub enum LCDModes {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LCDStatusFlag`
[INFO] [stderr]   --> src/device/hardware_io.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub enum LCDStatusFlag {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_index`
[INFO] [stderr]   --> src/device/hardware_io.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn get_index(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_flag`
[INFO] [stderr]   --> src/device/hardware_io.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn set_flag(&mut self, f: LCDStatusFlag, t: bool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_flag`
[INFO] [stderr]   --> src/device/hardware_io.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn get_flag(&self, f: LCDStatusFlag) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `flags`
[INFO] [stderr]   --> src/device/interrupt.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | pub fn flags(enabled: u8, requested: u8) -> Vec<Flag> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `kind`
[INFO] [stderr]   --> src/device/tile_data.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     kind: TileDataKind,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_zero`
[INFO] [stderr]   --> src/tile.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn is_zero(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LD8Args`
[INFO] [stderr]   --> src/instructions.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub enum LD8Args {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mem`
[INFO] [stderr]   --> src/instructions.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Mem(Registers16),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DAA`
[INFO] [stderr]   --> src/instructions.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     DAA,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `State`
[INFO] [stderr]  --> src/repl.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub enum State {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Repl`
[INFO] [stderr]  --> src/repl.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Repl {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new`
[INFO] [stderr]   --> src/repl.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn new(state:State) -> Repl {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.anders_gameboy_emulator.114h2ivh-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124" "/opt/crater/target/debug/deps/anders_gameboy_emulator-c6dec800ecd15124.2prw14aqg614f2pa.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/libclap-3a1eecb730edf4c9.rlib" "/opt/crater/target/debug/deps/libvec_map-543e31245cb37b03.rlib" "/opt/crater/target/debug/deps/libtextwrap-451ef45577a7a752.rlib" "/opt/crater/target/debug/deps/libunicode_width-26f3734d51bc29d0.rlib" "/opt/crater/target/debug/deps/libstrsim-e16dede6f67e1ca9.rlib" "/opt/crater/target/debug/deps/libbitflags-4f5a5af30acbcb25.rlib" "/opt/crater/target/debug/deps/libatty-54ac8cac86f15421.rlib" "/opt/crater/target/debug/deps/libansi_term-d78a4dc68e723c1a.rlib" "/opt/crater/target/debug/deps/libsdl2-3903be26c1e852d1.rlib" "/opt/crater/target/debug/deps/librand-5708a7e90e452c25.rlib" "/opt/crater/target/debug/deps/librand-256e5b3bc08b0b28.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-acf8a93fc4812c64.rlib" "/opt/crater/target/debug/deps/libbitflags-df219a1ec24cdf3b.rlib" "/opt/crater/target/debug/deps/liblazy_static-318544a807a94655.rlib" "/opt/crater/target/debug/deps/liblibc-2bc51604af9dbea7.rlib" "/opt/crater/target/debug/deps/libnum-5b8952289c34ed60.rlib" "/opt/crater/target/debug/deps/libnum_iter-cfd0efa0e6c2d090.rlib" "/opt/crater/target/debug/deps/libnum_integer-50d7a6250a012600.rlib" "/opt/crater/target/debug/deps/libnum_traits-05dccce16f429b25.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_ttf" "-lSDL2" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[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 `anders-gameboy-emulator`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9681924e8f0529335a4ae20f5194fd567366e0bfba8ffa1f980a6435376126ca"`
[INFO] running `"docker" "rm" "-f" "9681924e8f0529335a4ae20f5194fd567366e0bfba8ffa1f980a6435376126ca"`
[INFO] [stdout] 9681924e8f0529335a4ae20f5194fd567366e0bfba8ffa1f980a6435376126ca