[INFO] updating cached repository https://github.com/ginryuoku/rust-chip8
[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] 2fac3a45b729c9cfb9870684be30392669c539b6
[INFO] testing ginryuoku/rust-chip8 against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fginryuoku%2Frust-chip8" "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/ginryuoku/rust-chip8 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ginryuoku/rust-chip8
[INFO] finished tweaking git repo https://github.com/ginryuoku/rust-chip8
[INFO] tweaked toml for git repo https://github.com/ginryuoku/rust-chip8 written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ginryuoku/rust-chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] fdaa43d7758484991f87bdd61731702fe01f66fcba73dbb3bc3ece8c8ff6a617
[INFO] running `"docker" "start" "-a" "fdaa43d7758484991f87bdd61731702fe01f66fcba73dbb3bc3ece8c8ff6a617"`
[INFO] [stderr]    Compiling rust-chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/ram.rs:46:47
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) -> u8 {
[INFO] [stderr]    |                                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ram`
[INFO] [stderr]   --> src/cpu.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn run_instruction(&mut self, ram: &mut Ram) {
[INFO] [stderr]    |                                       ^^^ help: consider prefixing with an underscore: `_ram`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/ram.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `vx`
[INFO] [stderr]  --> src/cpu.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     vx: [u8; 16],
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pc`
[INFO] [stderr]  --> src/cpu.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pc: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `i`
[INFO] [stderr]  --> src/cpu.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     i: u16
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     file.read_to_end(&mut data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "fdaa43d7758484991f87bdd61731702fe01f66fcba73dbb3bc3ece8c8ff6a617"`
[INFO] running `"docker" "rm" "-f" "fdaa43d7758484991f87bdd61731702fe01f66fcba73dbb3bc3ece8c8ff6a617"`
[INFO] [stdout] fdaa43d7758484991f87bdd61731702fe01f66fcba73dbb3bc3ece8c8ff6a617
[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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7dd629ab98da363e975ec42dc72dbab255a817c14ba1880a935291165f5a60da
[INFO] running `"docker" "start" "-a" "7dd629ab98da363e975ec42dc72dbab255a817c14ba1880a935291165f5a60da"`
[INFO] [stderr]    Compiling rust-chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/ram.rs:46:47
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) -> u8 {
[INFO] [stderr]    |                                               ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ram`
[INFO] [stderr]   --> src/cpu.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn run_instruction(&mut self, ram: &mut Ram) {
[INFO] [stderr]    |                                       ^^^ help: consider prefixing with an underscore: `_ram`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/ram.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `vx`
[INFO] [stderr]  --> src/cpu.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     vx: [u8; 16],
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pc`
[INFO] [stderr]  --> src/cpu.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pc: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `i`
[INFO] [stderr]  --> src/cpu.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     i: u16
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     file.read_to_end(&mut data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "7dd629ab98da363e975ec42dc72dbab255a817c14ba1880a935291165f5a60da"`
[INFO] running `"docker" "rm" "-f" "7dd629ab98da363e975ec42dc72dbab255a817c14ba1880a935291165f5a60da"`
[INFO] [stdout] 7dd629ab98da363e975ec42dc72dbab255a817c14ba1880a935291165f5a60da
[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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 93b87408e6f6c4fd4cd35174b81fec831a17b486ec8010b453b1f0d680f7ed28
[INFO] running `"docker" "start" "-a" "93b87408e6f6c4fd4cd35174b81fec831a17b486ec8010b453b1f0d680f7ed28"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_chip8-e106114a35549e39
[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" "93b87408e6f6c4fd4cd35174b81fec831a17b486ec8010b453b1f0d680f7ed28"`
[INFO] running `"docker" "rm" "-f" "93b87408e6f6c4fd4cd35174b81fec831a17b486ec8010b453b1f0d680f7ed28"`
[INFO] [stdout] 93b87408e6f6c4fd4cd35174b81fec831a17b486ec8010b453b1f0d680f7ed28