[INFO] updating cached repository fmdkdd/chipers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fmdkdd/chipers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fmdkdd/chipers" "work/ex/beta-1.37-6/sources/1.36.0/gh/fmdkdd/chipers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/fmdkdd/chipers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fmdkdd/chipers" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fmdkdd/chipers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fmdkdd/chipers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 910dfaebe7177b30083a459492d5fb594cf4a770
[INFO] sha for GitHub repo fmdkdd/chipers: 910dfaebe7177b30083a459492d5fb594cf4a770
[INFO] validating manifest of fmdkdd/chipers 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 fmdkdd/chipers 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 fmdkdd/chipers
[INFO] finished frobbing fmdkdd/chipers
[INFO] frobbed toml for fmdkdd/chipers written to work/ex/beta-1.37-6/sources/1.36.0/gh/fmdkdd/chipers/Cargo.toml
[INFO] started frobbing fmdkdd/chipers
[INFO] finished frobbing fmdkdd/chipers
[INFO] frobbed toml for fmdkdd/chipers written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fmdkdd/chipers/Cargo.toml
[INFO] crate fmdkdd/chipers 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 fmdkdd/chipers 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-3/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/fmdkdd/chipers:/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] 64ef7f866e287f39a633c8a5ba34950ad85791910d4264f8e25e1a60f62fd282
[INFO] running `"docker" "start" "-a" "64ef7f866e287f39a633c8a5ba34950ad85791910d4264f8e25e1a60f62fd282"`
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]    Compiling cfg-if v0.1.1
[INFO] [stderr]    Compiling smallvec v0.1.8
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling wayland-scanner v0.7.8
[INFO] [stderr]    Compiling glutin v0.7.4
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]    Compiling wayland-sys v0.7.8
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling wayland-client v0.7.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]    Compiling imgui-sys v0.0.14-pre (https://github.com/Gekkio/imgui-rs#800f9d1b)
[INFO] [stderr]    Compiling wayland-window v0.4.4
[INFO] [stderr]    Compiling wayland-kbd v0.6.3
[INFO] [stderr]    Compiling docopt v0.8.0
[INFO] [stderr]    Compiling winit v0.5.11
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling imgui v0.0.14-pre (https://github.com/Gekkio/imgui-rs#800f9d1b)
[INFO] [stderr]    Compiling imgui-glium-renderer v0.0.14-pre (https://github.com/Gekkio/imgui-rs#800f9d1b)
[INFO] [stderr]    Compiling chipers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/main.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 | use chip8::cpu::{self, Cpu};
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target_repaint_interval`
[INFO] [stderr]   --> src/main.rs:92:7
[INFO] [stderr]    |
[INFO] [stderr] 92 |   let target_repaint_interval = Duration::microseconds(
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_target_repaint_interval`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu_ticks_this_frame`
[INFO] [stderr]    --> src/main.rs:140:11
[INFO] [stderr]     |
[INFO] [stderr] 140 |   let mut cpu_ticks_this_frame = 0f32;
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_cpu_ticks_this_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tick_slack`
[INFO] [stderr]    --> src/main.rs:142:7
[INFO] [stderr]     |
[INFO] [stderr] 142 |   let tick_slack = Duration::microseconds(100);
[INFO] [stderr]     |       ^^^^^^^^^^ help: consider prefixing with an underscore: `_tick_slack`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sleep_slack`
[INFO] [stderr]    --> src/main.rs:143:7
[INFO] [stderr]     |
[INFO] [stderr] 143 |   let sleep_slack = Duration::microseconds(500);
[INFO] [stderr]     |       ^^^^^^^^^^^ help: consider prefixing with an underscore: `_sleep_slack`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:136:7
[INFO] [stderr]     |
[INFO] [stderr] 136 |   let mut overtimes = 0u64;
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:140:7
[INFO] [stderr]     |
[INFO] [stderr] 140 |   let mut cpu_ticks_this_frame = 0f32;
[INFO] [stderr]     |       ----^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `flag_turbo`
[INFO] [stderr]   --> src/main.rs:56:3
[INFO] [stderr]    |
[INFO] [stderr] 56 |   flag_turbo: bool,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `"docker" "inspect" "64ef7f866e287f39a633c8a5ba34950ad85791910d4264f8e25e1a60f62fd282"`
[INFO] running `"docker" "rm" "-f" "64ef7f866e287f39a633c8a5ba34950ad85791910d4264f8e25e1a60f62fd282"`
[INFO] [stdout] 64ef7f866e287f39a633c8a5ba34950ad85791910d4264f8e25e1a60f62fd282
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/fmdkdd/chipers:/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] 8cac3e333d96cd70e4b7c339c7631cdcf887b9503cdc5291c4d762dc0bf792d0
[INFO] running `"docker" "start" "-a" "8cac3e333d96cd70e4b7c339c7631cdcf887b9503cdc5291c4d762dc0bf792d0"`
[INFO] [stderr]    Compiling chipers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/main.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 | use chip8::cpu::{self, Cpu};
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target_repaint_interval`
[INFO] [stderr]   --> src/main.rs:92:7
[INFO] [stderr]    |
[INFO] [stderr] 92 |   let target_repaint_interval = Duration::microseconds(
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_target_repaint_interval`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu_ticks_this_frame`
[INFO] [stderr]    --> src/main.rs:140:11
[INFO] [stderr]     |
[INFO] [stderr] 140 |   let mut cpu_ticks_this_frame = 0f32;
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_cpu_ticks_this_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tick_slack`
[INFO] [stderr]    --> src/main.rs:142:7
[INFO] [stderr]     |
[INFO] [stderr] 142 |   let tick_slack = Duration::microseconds(100);
[INFO] [stderr]     |       ^^^^^^^^^^ help: consider prefixing with an underscore: `_tick_slack`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sleep_slack`
[INFO] [stderr]    --> src/main.rs:143:7
[INFO] [stderr]     |
[INFO] [stderr] 143 |   let sleep_slack = Duration::microseconds(500);
[INFO] [stderr]     |       ^^^^^^^^^^^ help: consider prefixing with an underscore: `_sleep_slack`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:136:7
[INFO] [stderr]     |
[INFO] [stderr] 136 |   let mut overtimes = 0u64;
[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] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:140:7
[INFO] [stderr]     |
[INFO] [stderr] 140 |   let mut cpu_ticks_this_frame = 0f32;
[INFO] [stderr]     |       ----^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `flag_turbo`
[INFO] [stderr]   --> src/main.rs:56:3
[INFO] [stderr]    |
[INFO] [stderr] 56 |   flag_turbo: bool,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "8cac3e333d96cd70e4b7c339c7631cdcf887b9503cdc5291c4d762dc0bf792d0"`
[INFO] running `"docker" "rm" "-f" "8cac3e333d96cd70e4b7c339c7631cdcf887b9503cdc5291c4d762dc0bf792d0"`
[INFO] [stdout] 8cac3e333d96cd70e4b7c339c7631cdcf887b9503cdc5291c4d762dc0bf792d0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/fmdkdd/chipers:/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] c8f8f99a2fda0c6210a2219cd7f6c2d9e07aff63abbb5035b4488fcf8d0372ad
[INFO] running `"docker" "start" "-a" "c8f8f99a2fda0c6210a2219cd7f6c2d9e07aff63abbb5035b4488fcf8d0372ad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[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/chipers-2cf37007f30fa25f
[INFO] running `"docker" "inspect" "c8f8f99a2fda0c6210a2219cd7f6c2d9e07aff63abbb5035b4488fcf8d0372ad"`
[INFO] running `"docker" "rm" "-f" "c8f8f99a2fda0c6210a2219cd7f6c2d9e07aff63abbb5035b4488fcf8d0372ad"`
[INFO] [stdout] c8f8f99a2fda0c6210a2219cd7f6c2d9e07aff63abbb5035b4488fcf8d0372ad