[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/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/fmdkdd/chipers"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/fmdkdd/chipers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fmdkdd/chipers" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/fmdkdd/chipers"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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 master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fmdkdd/chipers on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "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/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/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/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fmdkdd/chipers against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-5/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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=forbid" "-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0bcd8ec53ce28e7ba6f8a0aeefd03c0f4b910ed523b5bd391037cf6d81987c4c
[INFO] running `"docker" "start" "-a" "0bcd8ec53ce28e7ba6f8a0aeefd03c0f4b910ed523b5bd391037cf6d81987c4c"`
[INFO] [stderr]    Compiling imgui-sys v0.0.14-pre (https://github.com/Gekkio/imgui-rs#800f9d1b)
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking x11-dl v2.14.0
[INFO] [stderr]    Compiling glutin v0.7.4
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking tempfile v2.1.5
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking docopt v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.7.8
[INFO] [stderr]     Checking wayland-client v0.7.8
[INFO] [stderr]     Checking wayland-kbd v0.6.3
[INFO] [stderr]     Checking wayland-window v0.4.4
[INFO] [stderr]     Checking winit v0.5.11
[INFO] [stderr]     Checking imgui v0.0.14-pre (https://github.com/Gekkio/imgui-rs#800f9d1b)
[INFO] [stderr]     Checking imgui-glium-renderer v0.0.14-pre (https://github.com/Gekkio/imgui-rs#800f9d1b)
[INFO] [stderr]     Checking 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 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: 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: 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] 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 04s
[INFO] running `"docker" "inspect" "0bcd8ec53ce28e7ba6f8a0aeefd03c0f4b910ed523b5bd391037cf6d81987c4c"`
[INFO] running `"docker" "rm" "-f" "0bcd8ec53ce28e7ba6f8a0aeefd03c0f4b910ed523b5bd391037cf6d81987c4c"`
[INFO] [stdout] 0bcd8ec53ce28e7ba6f8a0aeefd03c0f4b910ed523b5bd391037cf6d81987c4c