[INFO] updating cached repository squablyScientist/chip8-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/squablyScientist/chip8-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/squablyScientist/chip8-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/squablyScientist/chip8-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/squablyScientist/chip8-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/squablyScientist/chip8-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/squablyScientist/chip8-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/squablyScientist/chip8-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20a3b6f01b05b4f4e44d4695942b21cbdbe04a62
[INFO] sha for GitHub repo squablyScientist/chip8-rust: 20a3b6f01b05b4f4e44d4695942b21cbdbe04a62
[INFO] validating manifest of squablyScientist/chip8-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 squablyScientist/chip8-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 squablyScientist/chip8-rust
[INFO] finished frobbing squablyScientist/chip8-rust
[INFO] frobbed toml for squablyScientist/chip8-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/squablyScientist/chip8-rust/Cargo.toml
[INFO] started frobbing squablyScientist/chip8-rust
[INFO] finished frobbing squablyScientist/chip8-rust
[INFO] frobbed toml for squablyScientist/chip8-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/squablyScientist/chip8-rust/Cargo.toml
[INFO] crate squablyScientist/chip8-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 squablyScientist/chip8-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/squablyScientist/chip8-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 80f0fb5270d7db314497fd881810679ff1f7bf15bec51baa6da961cb44c3e9a3
[INFO] running `"docker" "start" "-a" "80f0fb5270d7db314497fd881810679ff1f7bf15bec51baa6da961cb44c3e9a3"`
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/cpu.rs:367:25
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 let mut pixel: u8 = 0;
[INFO] [stderr]     |                         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_mem`
[INFO] [stderr]   --> src/cpu.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn dump_mem(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_reg`
[INFO] [stderr]    --> src/cpu.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn dump_reg(&self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub  V: [u8; 16],   
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `I` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub  I: u16,        
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "80f0fb5270d7db314497fd881810679ff1f7bf15bec51baa6da961cb44c3e9a3"`
[INFO] running `"docker" "rm" "-f" "80f0fb5270d7db314497fd881810679ff1f7bf15bec51baa6da961cb44c3e9a3"`
[INFO] [stdout] 80f0fb5270d7db314497fd881810679ff1f7bf15bec51baa6da961cb44c3e9a3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/squablyScientist/chip8-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ce64ab0f1977dc0e7c73338679b5f28a725cc80d9b49200d6fd2af374bdd1a9f
[INFO] running `"docker" "start" "-a" "ce64ab0f1977dc0e7c73338679b5f28a725cc80d9b49200d6fd2af374bdd1a9f"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/cpu.rs:367:25
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 let mut pixel: u8 = 0;
[INFO] [stderr]     |                         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_mem`
[INFO] [stderr]   --> src/cpu.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn dump_mem(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_reg`
[INFO] [stderr]    --> src/cpu.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn dump_reg(&self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub  V: [u8; 16],   
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `I` should have a snake case name
[INFO] [stderr]   --> src/cpu.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub  I: u16,        
[INFO] [stderr]    |          ^ help: convert the identifier to snake case: `i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "ce64ab0f1977dc0e7c73338679b5f28a725cc80d9b49200d6fd2af374bdd1a9f"`
[INFO] running `"docker" "rm" "-f" "ce64ab0f1977dc0e7c73338679b5f28a725cc80d9b49200d6fd2af374bdd1a9f"`
[INFO] [stdout] ce64ab0f1977dc0e7c73338679b5f28a725cc80d9b49200d6fd2af374bdd1a9f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/squablyScientist/chip8-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] de3f6b563c42ce0153b9cd0d209fd6f10aaeb5834dd380d54784c93ab362b3b9
[INFO] running `"docker" "start" "-a" "de3f6b563c42ce0153b9cd0d209fd6f10aaeb5834dd380d54784c93ab362b3b9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8-588da308136e9d18
[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" "de3f6b563c42ce0153b9cd0d209fd6f10aaeb5834dd380d54784c93ab362b3b9"`
[INFO] running `"docker" "rm" "-f" "de3f6b563c42ce0153b9cd0d209fd6f10aaeb5834dd380d54784c93ab362b3b9"`
[INFO] [stdout] de3f6b563c42ce0153b9cd0d209fd6f10aaeb5834dd380d54784c93ab362b3b9