[INFO] updating cached repository https://github.com/joshuaholmes/chip8_this_time_in_rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c4e8e5454f70e72838f04c5a891ed75d6d3ddf9
[INFO] testing joshuaholmes/chip8_this_time_in_rust against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuaholmes%2Fchip8_this_time_in_rust" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joshuaholmes/chip8_this_time_in_rust on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/joshuaholmes/chip8_this_time_in_rust
[INFO] finished tweaking git repo https://github.com/joshuaholmes/chip8_this_time_in_rust
[INFO] tweaked toml for git repo https://github.com/joshuaholmes/chip8_this_time_in_rust written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuaholmes/chip8_this_time_in_rust already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a3b6e6f6825435605ea2b02d58d6474c5b08daae137b513c8a69945fffb73a4f
[INFO] running `"docker" "start" "-a" "a3b6e6f6825435605ea2b02d58d6474c5b08daae137b513c8a69945fffb73a4f"`
[INFO] [stderr]    Compiling sdl2-sys v0.19.0
[INFO] [stderr]    Compiling sdl2 v0.19.0
[INFO] [stderr]    Compiling chip8_this_time_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/opcode.rs:161:19
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn opcode_sys(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stderr]     |                   ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/opcode.rs:167:19
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn opcode_cls(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stderr]     |                   ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/opcode.rs:176:19
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn opcode_ret(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stderr]     |                   ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.54s
[INFO] running `"docker" "inspect" "a3b6e6f6825435605ea2b02d58d6474c5b08daae137b513c8a69945fffb73a4f"`
[INFO] running `"docker" "rm" "-f" "a3b6e6f6825435605ea2b02d58d6474c5b08daae137b513c8a69945fffb73a4f"`
[INFO] [stdout] a3b6e6f6825435605ea2b02d58d6474c5b08daae137b513c8a69945fffb73a4f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] dc47a3825b2781f7f421a1f3583c01202ad0e70d57be3a7b5ed10635421b2c35
[INFO] running `"docker" "start" "-a" "dc47a3825b2781f7f421a1f3583c01202ad0e70d57be3a7b5ed10635421b2c35"`
[INFO] [stderr]    Compiling chip8_this_time_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/opcode.rs:161:19
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn opcode_sys(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stderr]     |                   ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/opcode.rs:167:19
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn opcode_cls(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stderr]     |                   ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/opcode.rs:176:19
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn opcode_ret(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stderr]     |                   ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "dc47a3825b2781f7f421a1f3583c01202ad0e70d57be3a7b5ed10635421b2c35"`
[INFO] running `"docker" "rm" "-f" "dc47a3825b2781f7f421a1f3583c01202ad0e70d57be3a7b5ed10635421b2c35"`
[INFO] [stdout] dc47a3825b2781f7f421a1f3583c01202ad0e70d57be3a7b5ed10635421b2c35
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 990d40f7ed0eaf426ca18ee28121c23d162e4e6f40db3b8078ddc5b6a77286f6
[INFO] running `"docker" "start" "-a" "990d40f7ed0eaf426ca18ee28121c23d162e4e6f40db3b8078ddc5b6a77286f6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip8_this_time_in_rust-db6e8b63ac60be9d
[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" "990d40f7ed0eaf426ca18ee28121c23d162e4e6f40db3b8078ddc5b6a77286f6"`
[INFO] running `"docker" "rm" "-f" "990d40f7ed0eaf426ca18ee28121c23d162e4e6f40db3b8078ddc5b6a77286f6"`
[INFO] [stdout] 990d40f7ed0eaf426ca18ee28121c23d162e4e6f40db3b8078ddc5b6a77286f6