[INFO] updating cached repository https://github.com/bikefrivolously/chip8
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ac2ee9cd476eb32e7260b4c3c74e3f9bdfaf4cd
[INFO] testing bikefrivolously/chip8 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbikefrivolously%2Fchip8" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bikefrivolously/chip8 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bikefrivolously/chip8
[INFO] finished tweaking git repo https://github.com/bikefrivolously/chip8
[INFO] tweaked toml for git repo https://github.com/bikefrivolously/chip8 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/bikefrivolously/chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 600fc1354679c1efc9bbec38bfaaa5507df24d0b612fed2b56200911d7c31d14
[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" "600fc1354679c1efc9bbec38bfaaa5507df24d0b612fed2b56200911d7c31d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "600fc1354679c1efc9bbec38bfaaa5507df24d0b612fed2b56200911d7c31d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "600fc1354679c1efc9bbec38bfaaa5507df24d0b612fed2b56200911d7c31d14", kill_on_drop: false }`
[INFO] [stdout] 600fc1354679c1efc9bbec38bfaaa5507df24d0b612fed2b56200911d7c31d14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4984b8d51890d7f202a13a45915d19876c0763df352b520eba63e1dfdaedbe66
[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" "4984b8d51890d7f202a13a45915d19876c0763df352b520eba63e1dfdaedbe66", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/cpu.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for i in 0..100000 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 self.v[x] >> 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 self.v[x] << 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "4984b8d51890d7f202a13a45915d19876c0763df352b520eba63e1dfdaedbe66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4984b8d51890d7f202a13a45915d19876c0763df352b520eba63e1dfdaedbe66", kill_on_drop: false }`
[INFO] [stdout] 4984b8d51890d7f202a13a45915d19876c0763df352b520eba63e1dfdaedbe66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b59375793022b41b3a9aa1747a36cc83a5dfe12a4ee6d7022c93f7d2d0e108d0
[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" "b59375793022b41b3a9aa1747a36cc83a5dfe12a4ee6d7022c93f7d2d0e108d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/cpu.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for i in 0..100000 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 self.v[x] >> 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused bitwise operation that must be used
[INFO] [stdout]    --> src/cpu.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 self.v[x] << 1;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "b59375793022b41b3a9aa1747a36cc83a5dfe12a4ee6d7022c93f7d2d0e108d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b59375793022b41b3a9aa1747a36cc83a5dfe12a4ee6d7022c93f7d2d0e108d0", kill_on_drop: false }`
[INFO] [stdout] b59375793022b41b3a9aa1747a36cc83a5dfe12a4ee6d7022c93f7d2d0e108d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 11ecb5c600f431d1be31fa9ca5caf37f5593f8552d7c4fad3fd0926d8632d32a
[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" "11ecb5c600f431d1be31fa9ca5caf37f5593f8552d7c4fad3fd0926d8632d32a", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/cpu.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for i in 0..100000 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:176:17
[INFO] [stderr]     |
[INFO] [stderr] 176 |                 self.v[x] >> 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused bitwise operation that must be used
[INFO] [stderr]    --> src/cpu.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 self.v[x] << 1;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip8-10fbc6bceec0682a
[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 `Command { std: "docker" "inspect" "11ecb5c600f431d1be31fa9ca5caf37f5593f8552d7c4fad3fd0926d8632d32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ecb5c600f431d1be31fa9ca5caf37f5593f8552d7c4fad3fd0926d8632d32a", kill_on_drop: false }`
[INFO] [stdout] 11ecb5c600f431d1be31fa9ca5caf37f5593f8552d7c4fad3fd0926d8632d32a