[INFO] updating cached repository shiver/chip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shiver/chip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shiver/chip8" "work/ex/beta-1.37-6/sources/1.36.0/gh/shiver/chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/shiver/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shiver/chip8" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shiver/chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shiver/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cbec31add30a9348f2e32b19aea176f5229545c8
[INFO] sha for GitHub repo shiver/chip8: cbec31add30a9348f2e32b19aea176f5229545c8
[INFO] validating manifest of shiver/chip8 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 shiver/chip8 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 shiver/chip8
[INFO] finished frobbing shiver/chip8
[INFO] frobbed toml for shiver/chip8 written to work/ex/beta-1.37-6/sources/1.36.0/gh/shiver/chip8/Cargo.toml
[INFO] started frobbing shiver/chip8
[INFO] finished frobbing shiver/chip8
[INFO] frobbed toml for shiver/chip8 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shiver/chip8/Cargo.toml
[INFO] crate shiver/chip8 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 shiver/chip8 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-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shiver/chip8:/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] fdd15f599aec6ebb17f8ca578b7add79d35a80b7131b9a74eb81a2995a6ee2cb
[INFO] running `"docker" "start" "-a" "fdd15f599aec6ebb17f8ca578b7add79d35a80b7131b9a74eb81a2995a6ee2cb"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:231:21
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 let mut start_y = self.regs[*vy as usize];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 4.41s
[INFO] running `"docker" "inspect" "fdd15f599aec6ebb17f8ca578b7add79d35a80b7131b9a74eb81a2995a6ee2cb"`
[INFO] running `"docker" "rm" "-f" "fdd15f599aec6ebb17f8ca578b7add79d35a80b7131b9a74eb81a2995a6ee2cb"`
[INFO] [stdout] fdd15f599aec6ebb17f8ca578b7add79d35a80b7131b9a74eb81a2995a6ee2cb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shiver/chip8:/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] 84cca23421ecc1243b9a017ed5f879ad86d937f818903fef9cd29ac32e465f25
[INFO] running `"docker" "start" "-a" "84cca23421ecc1243b9a017ed5f879ad86d937f818903fef9cd29ac32e465f25"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:231:21
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 let mut start_y = self.regs[*vy as usize];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `"docker" "inspect" "84cca23421ecc1243b9a017ed5f879ad86d937f818903fef9cd29ac32e465f25"`
[INFO] running `"docker" "rm" "-f" "84cca23421ecc1243b9a017ed5f879ad86d937f818903fef9cd29ac32e465f25"`
[INFO] [stdout] 84cca23421ecc1243b9a017ed5f879ad86d937f818903fef9cd29ac32e465f25
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shiver/chip8:/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"`
[INFO] [stdout] 58e4452dcc6403f70e350150e6074b9c4ff80cb3d94505eb9045fe58fd74ca3f
[INFO] running `"docker" "start" "-a" "58e4452dcc6403f70e350150e6074b9c4ff80cb3d94505eb9045fe58fd74ca3f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8-94a54c91d6231f99
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8-ce6eb7360d0eee74
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8-5218c4e6f5a7a11a
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test test_call_subroutine ... ok
[INFO] [stdout] test test_dump_reg ... ok
[INFO] [stdout] test test_it ... ok
[INFO] [stdout] test test_load_reg ... ok
[INFO] [stdout] test test_load_const ... ok
[INFO] [stdout] test test_return ... ok
[INFO] [stdout] test test_set_and ... ok
[INFO] [stdout] test test_set_bcd ... ok
[INFO] [stdout] test test_add ... ok
[INFO] [stdout] test test_assign_value ... ok
[INFO] [stdout] test test_set_memory_address ... ok
[INFO] [stdout] test test_set_or ... ok
[INFO] [stdout] test test_set_memory_for_font ... ok
[INFO] [stdout] test test_clear_and_basics ... ok
[INFO] [stdout] test test_reduce ... ok
[INFO] [stdout] test test_shift_right ... ok
[INFO] [stdout] test test_skip_if_equal_register ... ok
[INFO] [stdout] test test_jump_to_address ... ok
[INFO] [stdout] test test_skip_if_not_equal ... ok
[INFO] [stdout] test test_skip_if_equal ... ok
[INFO] [stdout] test test_opcode_to_instruction ... ok
[INFO] [stdout] test test_shift_left ... ok
[INFO] [stdout] test test_subtract ... ok
[INFO] [stdout] test test_add_const ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chip8
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "58e4452dcc6403f70e350150e6074b9c4ff80cb3d94505eb9045fe58fd74ca3f"`
[INFO] running `"docker" "rm" "-f" "58e4452dcc6403f70e350150e6074b9c4ff80cb3d94505eb9045fe58fd74ca3f"`
[INFO] [stdout] 58e4452dcc6403f70e350150e6074b9c4ff80cb3d94505eb9045fe58fd74ca3f