[INFO] updating cached repository https://github.com/shiver/chip8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cbec31add30a9348f2e32b19aea176f5229545c8
[INFO] testing shiver/chip8 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiver%2Fchip8" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shiver/chip8 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-1/source/Cargo.toml
[INFO] crate git repo https://github.com/shiver/chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96ca89fe6a12582daff6505613d9ec6de23161fee9f1bf43b044bc96d286b837
[INFO] running `"docker" "start" "-a" "96ca89fe6a12582daff6505613d9ec6de23161fee9f1bf43b044bc96d286b837"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling bitflags v0.7.0
[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 num-integer v0.1.36
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling backtrace v0.3.7
[INFO] [stderr]    Compiling failure v0.1.1
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.33s
[INFO] running `"docker" "inspect" "96ca89fe6a12582daff6505613d9ec6de23161fee9f1bf43b044bc96d286b837"`
[INFO] running `"docker" "rm" "-f" "96ca89fe6a12582daff6505613d9ec6de23161fee9f1bf43b044bc96d286b837"`
[INFO] [stdout] 96ca89fe6a12582daff6505613d9ec6de23161fee9f1bf43b044bc96d286b837
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e51cd65585f95024cf38134f53d8bb5fb17c2a55b2e3d19c3dc08e68f6bf221d
[INFO] running `"docker" "start" "-a" "e51cd65585f95024cf38134f53d8bb5fb17c2a55b2e3d19c3dc08e68f6bf221d"`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/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] warning: 1 warning emitted
[INFO] [stderr] 
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `"docker" "inspect" "e51cd65585f95024cf38134f53d8bb5fb17c2a55b2e3d19c3dc08e68f6bf221d"`
[INFO] running `"docker" "rm" "-f" "e51cd65585f95024cf38134f53d8bb5fb17c2a55b2e3d19c3dc08e68f6bf221d"`
[INFO] [stdout] e51cd65585f95024cf38134f53d8bb5fb17c2a55b2e3d19c3dc08e68f6bf221d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fde059fa70febceac023870c8ed2e762f4b5e476af887e8ee5ad7001c7b82b97
[INFO] running `"docker" "start" "-a" "fde059fa70febceac023870c8ed2e762f4b5e476af887e8ee5ad7001c7b82b97"`
[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] warning: 1 warning emitted
[INFO] [stderr] 
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip8-a7fd71e9ca328469
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip8-ddcb3bae7053bf69
[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] [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/rustwide/target/debug/deps/chip8-d14fd78a5ea6813a
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test test_add ... ok
[INFO] [stdout] test test_call_subroutine ... ok
[INFO] [stdout] test test_assign_value ... ok
[INFO] [stdout] test test_clear_and_basics ... ok
[INFO] [stdout] test test_add_const ... ok
[INFO] [stdout] test test_dump_reg ... ok
[INFO] [stdout] test test_it ... ok
[INFO] [stdout] test test_load_reg ... ok
[INFO] [stdout] test test_load_const ... ok
[INFO] [stdout] test test_return ... ok
[INFO] [stdout] test test_jump_to_address ... ok
[INFO] [stdout] test test_set_and ... ok
[INFO] [stdout] test test_set_memory_for_font ... ok
[INFO] [stdout] test test_set_or ... ok
[INFO] [stdout] test test_set_memory_address ... 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_opcode_to_instruction ... ok
[INFO] [stdout] test test_shift_left ... ok
[INFO] [stdout] test test_set_bcd ... ok
[INFO] [stdout] test test_reduce ... ok
[INFO] [stdout] test test_skip_if_not_equal ... ok
[INFO] [stdout] test test_subtract ... 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" "fde059fa70febceac023870c8ed2e762f4b5e476af887e8ee5ad7001c7b82b97"`
[INFO] running `"docker" "rm" "-f" "fde059fa70febceac023870c8ed2e762f4b5e476af887e8ee5ad7001c7b82b97"`
[INFO] [stdout] fde059fa70febceac023870c8ed2e762f4b5e476af887e8ee5ad7001c7b82b97