[INFO] updating cached repository shiver/chip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shiver/chip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shiver/chip8" "work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shiver/chip8" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cbec31add30a9348f2e32b19aea176f5229545c8
[INFO] sha for GitHub repo shiver/chip8: cbec31add30a9348f2e32b19aea176f5229545c8
[INFO] validating manifest of shiver/chip8 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shiver/chip8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shiver/chip8
[INFO] finished frobbing shiver/chip8
[INFO] frobbed toml for shiver/chip8 written to work/ex/beta-1.38-1/sources/1.37.0/gh/shiver/chip8/Cargo.toml
[INFO] started frobbing shiver/chip8
[INFO] finished frobbing shiver/chip8
[INFO] frobbed toml for shiver/chip8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/chip8/Cargo.toml
[INFO] crate shiver/chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing shiver/chip8 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/chip8:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ff94b1c6d0a7934dfd9a0c451c40b0677058f46bdaccce9fe614372d6ef29eb1
[INFO] running `"docker" "start" "-a" "ff94b1c6d0a7934dfd9a0c451c40b0677058f46bdaccce9fe614372d6ef29eb1"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:231:21
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 let mut start_y = self.regs[*vy as usize];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `"docker" "inspect" "ff94b1c6d0a7934dfd9a0c451c40b0677058f46bdaccce9fe614372d6ef29eb1"`
[INFO] running `"docker" "rm" "-f" "ff94b1c6d0a7934dfd9a0c451c40b0677058f46bdaccce9fe614372d6ef29eb1"`
[INFO] [stdout] ff94b1c6d0a7934dfd9a0c451c40b0677058f46bdaccce9fe614372d6ef29eb1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/chip8:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1d0c650dad110d8035b0ab10aba63d546fe8d4c9ce810d38ac6a8be4e03822a1
[INFO] running `"docker" "start" "-a" "1d0c650dad110d8035b0ab10aba63d546fe8d4c9ce810d38ac6a8be4e03822a1"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:231:21
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 let mut start_y = self.regs[*vy as usize];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `"docker" "inspect" "1d0c650dad110d8035b0ab10aba63d546fe8d4c9ce810d38ac6a8be4e03822a1"`
[INFO] running `"docker" "rm" "-f" "1d0c650dad110d8035b0ab10aba63d546fe8d4c9ce810d38ac6a8be4e03822a1"`
[INFO] [stdout] 1d0c650dad110d8035b0ab10aba63d546fe8d4c9ce810d38ac6a8be4e03822a1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/shiver/chip8:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 0266c2b1de2799503f2be2a8ab22ae5ddd93a80f08dec7a9c25e052d16c6bbe0
[INFO] running `"docker" "start" "-a" "0266c2b1de2799503f2be2a8ab22ae5ddd93a80f08dec7a9c25e052d16c6bbe0"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8-2e8da2f0b9d38691
[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/chip8-0d798eeb828fd180
[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/chip8-53f9e0b972de4edc
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test test_assign_value ... ok
[INFO] [stdout] test test_load_const ... ok
[INFO] [stdout] test test_load_reg ... ok
[INFO] [stdout] test test_opcode_to_instruction ... ok
[INFO] [stdout] test test_reduce ... ok
[INFO] [stdout] test test_add_const ... ok
[INFO] [stdout] test test_jump_to_address ... ok
[INFO] [stdout] test test_it ... ok
[INFO] [stdout] test test_dump_reg ... ok
[INFO] [stdout] test test_add ... ok
[INFO] [stdout] test test_set_or ... ok
[INFO] [stdout] test test_clear_and_basics ... ok
[INFO] [stdout] test test_set_memory_for_font ... ok
[INFO] [stdout] test test_set_memory_address ... ok
[INFO] [stdout] test test_set_and ... ok
[INFO] [stdout] test test_shift_right ... ok
[INFO] [stdout] test test_skip_if_equal ... ok
[INFO] [stdout] test test_shift_left ... ok
[INFO] [stdout] test test_return ... ok
[INFO] [stdout] test test_call_subroutine ... ok
[INFO] [stdout] test test_set_bcd ... ok
[INFO] [stdout] test test_skip_if_not_equal ... ok
[INFO] [stdout] test test_subtract ... ok
[INFO] [stdout] test test_skip_if_equal_register ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chip8
[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" "0266c2b1de2799503f2be2a8ab22ae5ddd93a80f08dec7a9c25e052d16c6bbe0"`
[INFO] running `"docker" "rm" "-f" "0266c2b1de2799503f2be2a8ab22ae5ddd93a80f08dec7a9c25e052d16c6bbe0"`
[INFO] [stdout] 0266c2b1de2799503f2be2a8ab22ae5ddd93a80f08dec7a9c25e052d16c6bbe0