[INFO] updating cached repository carcharo/Chip8Emulator-Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/carcharo/Chip8Emulator-Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/carcharo/Chip8Emulator-Rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/carcharo/Chip8Emulator-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/carcharo/Chip8Emulator-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/carcharo/Chip8Emulator-Rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/carcharo/Chip8Emulator-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/carcharo/Chip8Emulator-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 417572ec4456f958ce4a378e0c0657a11d48fa13
[INFO] sha for GitHub repo carcharo/Chip8Emulator-Rust: 417572ec4456f958ce4a378e0c0657a11d48fa13
[INFO] validating manifest of carcharo/Chip8Emulator-Rust 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 carcharo/Chip8Emulator-Rust 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 carcharo/Chip8Emulator-Rust
[INFO] finished frobbing carcharo/Chip8Emulator-Rust
[INFO] frobbed toml for carcharo/Chip8Emulator-Rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/carcharo/Chip8Emulator-Rust/Cargo.toml
[INFO] started frobbing carcharo/Chip8Emulator-Rust
[INFO] finished frobbing carcharo/Chip8Emulator-Rust
[INFO] frobbed toml for carcharo/Chip8Emulator-Rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/carcharo/Chip8Emulator-Rust/Cargo.toml
[INFO] crate carcharo/Chip8Emulator-Rust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing carcharo/Chip8Emulator-Rust 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/carcharo/Chip8Emulator-Rust:/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] 137632aea781c5545f654e7b20b279f295b4097970b778150cefcfcfa467dffb
[INFO] running `"docker" "start" "-a" "137632aea781c5545f654e7b20b279f295b4097970b778150cefcfcfa467dffb"`
[INFO] [stderr]    Compiling chip8_emulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/memory.rs:42:34
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                  ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/memory.rs:42:48
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                                ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/memory.rs:46:33
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                 ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/memory.rs:46:47
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `mem`
[INFO] [stderr]   --> src/memory.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     mem: [u8; 4096],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/memory.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "137632aea781c5545f654e7b20b279f295b4097970b778150cefcfcfa467dffb"`
[INFO] running `"docker" "rm" "-f" "137632aea781c5545f654e7b20b279f295b4097970b778150cefcfcfa467dffb"`
[INFO] [stdout] 137632aea781c5545f654e7b20b279f295b4097970b778150cefcfcfa467dffb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/carcharo/Chip8Emulator-Rust:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4847efb47a8398a6046333f06e3491fa3271619317c0281f8e3ceb2a598b1e98
[INFO] running `"docker" "start" "-a" "4847efb47a8398a6046333f06e3491fa3271619317c0281f8e3ceb2a598b1e98"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling chip8_emulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/memory.rs:42:34
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                  ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/memory.rs:42:48
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                                ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/memory.rs:46:33
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                 ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/memory.rs:46:47
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |                                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `mem`
[INFO] [stderr]   --> src/memory.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     mem: [u8; 4096],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/memory.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "4847efb47a8398a6046333f06e3491fa3271619317c0281f8e3ceb2a598b1e98"`
[INFO] running `"docker" "rm" "-f" "4847efb47a8398a6046333f06e3491fa3271619317c0281f8e3ceb2a598b1e98"`
[INFO] [stdout] 4847efb47a8398a6046333f06e3491fa3271619317c0281f8e3ceb2a598b1e98
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/carcharo/Chip8Emulator-Rust:/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" "test" "--frozen"`
[INFO] [stdout] d67a860594fd5a58c7f980f3233bcdcec9e4599d903b4c9b297a3234391b0d60
[INFO] running `"docker" "start" "-a" "d67a860594fd5a58c7f980f3233bcdcec9e4599d903b4c9b297a3234391b0d60"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8_emulator-409d9ad360888924
[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" "d67a860594fd5a58c7f980f3233bcdcec9e4599d903b4c9b297a3234391b0d60"`
[INFO] running `"docker" "rm" "-f" "d67a860594fd5a58c7f980f3233bcdcec9e4599d903b4c9b297a3234391b0d60"`
[INFO] [stdout] d67a860594fd5a58c7f980f3233bcdcec9e4599d903b4c9b297a3234391b0d60