[INFO] updating cached repository yufrice/nesnes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yufrice/nesnes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yufrice/nesnes" "work/ex/beta-1.37-6/sources/1.36.0/gh/yufrice/nesnes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/yufrice/nesnes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yufrice/nesnes" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yufrice/nesnes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yufrice/nesnes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e4fe3ae0711fce9849c84c4c087b476c44152318
[INFO] sha for GitHub repo yufrice/nesnes: e4fe3ae0711fce9849c84c4c087b476c44152318
[INFO] validating manifest of yufrice/nesnes 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 yufrice/nesnes 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 yufrice/nesnes
[INFO] finished frobbing yufrice/nesnes
[INFO] frobbed toml for yufrice/nesnes written to work/ex/beta-1.37-6/sources/1.36.0/gh/yufrice/nesnes/Cargo.toml
[INFO] started frobbing yufrice/nesnes
[INFO] finished frobbing yufrice/nesnes
[INFO] frobbed toml for yufrice/nesnes written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yufrice/nesnes/Cargo.toml
[INFO] crate yufrice/nesnes 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 yufrice/nesnes against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/yufrice/nesnes:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] e363d80687ffb0212c02644077ab662d0945486d15ff8c3b9d46c705b6b1b769
[INFO] running `"docker" "start" "-a" "e363d80687ffb0212c02644077ab662d0945486d15ff8c3b9d46c705b6b1b769"`
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling sdl2-sys v0.32.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling nesnes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::info`
[INFO] [stderr]  --> src/arch/ppu.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use log::info;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PPUMemory`
[INFO] [stderr]  --> src/arch/ppu.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::arch::memory::{PPUMemory, PPURegister};
[INFO] [stderr]   |                           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `DISPLAY_SIZE`
[INFO] [stderr]   --> src/arch/ppu.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 |     DISPLAY_HEIGHT, DISPLAY_SIZE, DISPLAY_SPRITE_WIDTH, DISPLAY_WIDTH, PATTERN_LENGTH, SPRITE,
[INFO] [stderr]    |                     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `a` should have an upper camel case name
[INFO] [stderr]   --> src/arch/mod.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     a,
[INFO] [stderr]    |     ^ help: convert the identifier to upper camel case: `A`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `x` should have an upper camel case name
[INFO] [stderr]   --> src/arch/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     x,
[INFO] [stderr]    |     ^ help: convert the identifier to upper camel case: `X`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `y` should have an upper camel case name
[INFO] [stderr]   --> src/arch/mod.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     y,
[INFO] [stderr]    |     ^ help: convert the identifier to upper camel case: `Y`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `pc` should have an upper camel case name
[INFO] [stderr]   --> src/arch/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pc,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `Pc`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `sp` should have an upper camel case name
[INFO] [stderr]   --> src/arch/mod.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     sp,
[INFO] [stderr]    |     ^^ help: convert the identifier to upper camel case: `Sp`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `p` should have an upper camel case name
[INFO] [stderr]   --> src/arch/mod.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     p,
[INFO] [stderr]    |     ^ help: convert the identifier to upper camel case: `P`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `nesnes`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e363d80687ffb0212c02644077ab662d0945486d15ff8c3b9d46c705b6b1b769"`
[INFO] running `"docker" "rm" "-f" "e363d80687ffb0212c02644077ab662d0945486d15ff8c3b9d46c705b6b1b769"`
[INFO] [stdout] e363d80687ffb0212c02644077ab662d0945486d15ff8c3b9d46c705b6b1b769