[INFO] cloning repository https://github.com/shiver/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shiver/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiver%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiver%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbec31add30a9348f2e32b19aea176f5229545c8
[INFO] testing shiver/chip8 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiver%2Fchip8" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shiver/chip8 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shiver/chip8
[INFO] finished tweaking git repo https://github.com/shiver/chip8
[INFO] tweaked toml for git repo https://github.com/shiver/chip8 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/shiver/chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d78e17339ddc98cd2af6173fcb9ff0d5325fceb62120b79e9cc82307984584af
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d78e17339ddc98cd2af6173fcb9ff0d5325fceb62120b79e9cc82307984584af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d78e17339ddc98cd2af6173fcb9ff0d5325fceb62120b79e9cc82307984584af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78e17339ddc98cd2af6173fcb9ff0d5325fceb62120b79e9cc82307984584af", kill_on_drop: false }`
[INFO] [stdout] d78e17339ddc98cd2af6173fcb9ff0d5325fceb62120b79e9cc82307984584af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51e8b51ed9becae9fe09c8121ead0ec1136f6263873b2a8a27243ccab5d595a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "51e8b51ed9becae9fe09c8121ead0ec1136f6263873b2a8a27243ccab5d595a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.7
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 let mut start_y = self.regs[*vy as usize];
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.07s
[INFO] running `Command { std: "docker" "inspect" "51e8b51ed9becae9fe09c8121ead0ec1136f6263873b2a8a27243ccab5d595a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51e8b51ed9becae9fe09c8121ead0ec1136f6263873b2a8a27243ccab5d595a0", kill_on_drop: false }`
[INFO] [stdout] 51e8b51ed9becae9fe09c8121ead0ec1136f6263873b2a8a27243ccab5d595a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df81c88936f49c811adb4b79480e9eafb75e09ccbc937f416a60fb0f4a821b5c
[INFO] running `Command { std: "docker" "start" "-a" "df81c88936f49c811adb4b79480e9eafb75e09ccbc937f416a60fb0f4a821b5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 let mut start_y = self.regs[*vy as usize];
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cpu.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 let mut start_y = self.regs[*vy as usize];
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "df81c88936f49c811adb4b79480e9eafb75e09ccbc937f416a60fb0f4a821b5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df81c88936f49c811adb4b79480e9eafb75e09ccbc937f416a60fb0f4a821b5c", kill_on_drop: false }`
[INFO] [stdout] df81c88936f49c811adb4b79480e9eafb75e09ccbc937f416a60fb0f4a821b5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 67f3db82feb66f9fbb77e2b08d1766d1894ca266dbd861cf76aee799044878be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "67f3db82feb66f9fbb77e2b08d1766d1894ca266dbd861cf76aee799044878be", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/cpu.rs:231:21
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 231 |                 let mut start_y = self.regs[*vy as usize];
[INFO] [stdout] 
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]     |                     |
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `chip8` (lib) generated 1 warning
[INFO] [stdout] running 24 tests
[INFO] [stderr] warning: `chip8` (lib test) generated 1 warning (1 duplicate)
[INFO] [stdout] test test_add_const ... ok
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] test test_assign_value ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chip8-85270d4cb2956e28)
[INFO] [stdout] test test_call_subroutine ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chip8-21bac9fcb9cb645f)
[INFO] [stdout] test test_add ... ok
[INFO] [stderr]      Running tests/chip8.rs (/opt/rustwide/target/debug/deps/chip8-7fc87149c6162d17)
[INFO] [stdout] test test_dump_reg ... ok
[INFO] [stderr]    Doc-tests chip8
[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_set_memory_address ... ok
[INFO] [stdout] test test_set_memory_for_font ... ok
[INFO] [stdout] test test_set_and ... ok
[INFO] [stdout] test test_set_bcd ... ok
[INFO] [stdout] test test_set_or ... ok
[INFO] [stdout] test test_shift_left ... ok
[INFO] [stdout] test test_shift_right ... ok
[INFO] [stdout] test test_skip_if_equal ... ok
[INFO] [stdout] test test_skip_if_equal_register ... ok
[INFO] [stdout] test test_it ... ok
[INFO] [stdout] test test_skip_if_not_equal ... ok
[INFO] [stdout] test test_subtract ... ok
[INFO] [stdout] test test_clear_and_basics ... ok
[INFO] [stdout] test test_return ... ok
[INFO] [stdout] test test_jump_to_address ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "67f3db82feb66f9fbb77e2b08d1766d1894ca266dbd861cf76aee799044878be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67f3db82feb66f9fbb77e2b08d1766d1894ca266dbd861cf76aee799044878be", kill_on_drop: false }`
[INFO] [stdout] 67f3db82feb66f9fbb77e2b08d1766d1894ca266dbd861cf76aee799044878be