[INFO] cloning repository https://github.com/shrenikbhatt/cpu-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shrenikbhatt/cpu-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrenikbhatt%2Fcpu-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrenikbhatt%2Fcpu-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7a2a95712b6d13fbe47c9cc723a557f25691b7f
[INFO] testing shrenikbhatt/cpu-emulator against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrenikbhatt%2Fcpu-emulator" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shrenikbhatt/cpu-emulator on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shrenikbhatt/cpu-emulator
[INFO] finished tweaking git repo https://github.com/shrenikbhatt/cpu-emulator
[INFO] tweaked toml for git repo https://github.com/shrenikbhatt/cpu-emulator written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shrenikbhatt/cpu-emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing shrenikbhatt/cpu-emulator against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrenikbhatt%2Fcpu-emulator" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shrenikbhatt/cpu-emulator on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shrenikbhatt/cpu-emulator
[INFO] finished tweaking git repo https://github.com/shrenikbhatt/cpu-emulator
[INFO] tweaked toml for git repo https://github.com/shrenikbhatt/cpu-emulator written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/shrenikbhatt/cpu-emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ed5c0c3e04dd7e042dcaa4b8d42642259edea88ee22db64e3cd880b2a2225e6
[INFO] running `Command { std: "docker" "start" "-a" "8ed5c0c3e04dd7e042dcaa4b8d42642259edea88ee22db64e3cd880b2a2225e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ed5c0c3e04dd7e042dcaa4b8d42642259edea88ee22db64e3cd880b2a2225e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ed5c0c3e04dd7e042dcaa4b8d42642259edea88ee22db64e3cd880b2a2225e6", kill_on_drop: false }`
[INFO] [stdout] 8ed5c0c3e04dd7e042dcaa4b8d42642259edea88ee22db64e3cd880b2a2225e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff55dcc08158420e27db8cb42131fd45c0c85ca7e203e7f9e5fc85effea70a74
[INFO] running `Command { std: "docker" "start" "-a" "ff55dcc08158420e27db8cb42131fd45c0c85ca7e203e7f9e5fc85effea70a74", kill_on_drop: false }`
[INFO] [stderr]    Compiling cpu-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/cpu.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpu`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let cpu: cpu::Cpu = cpu::Cpu::new();
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_cpu`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "ff55dcc08158420e27db8cb42131fd45c0c85ca7e203e7f9e5fc85effea70a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff55dcc08158420e27db8cb42131fd45c0c85ca7e203e7f9e5fc85effea70a74", kill_on_drop: false }`
[INFO] [stdout] ff55dcc08158420e27db8cb42131fd45c0c85ca7e203e7f9e5fc85effea70a74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60a273ec2eeb651ba9c70f0ba56871a690dd0ec63e49566ef9f951407a438fed
[INFO] running `Command { std: "docker" "start" "-a" "60a273ec2eeb651ba9c70f0ba56871a690dd0ec63e49566ef9f951407a438fed", kill_on_drop: false }`
[INFO] [stderr]    Compiling cpu-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cpu`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let cpu: cpu::Cpu = cpu::Cpu::new();
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_cpu`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "60a273ec2eeb651ba9c70f0ba56871a690dd0ec63e49566ef9f951407a438fed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a273ec2eeb651ba9c70f0ba56871a690dd0ec63e49566ef9f951407a438fed", kill_on_drop: false }`
[INFO] [stdout] 60a273ec2eeb651ba9c70f0ba56871a690dd0ec63e49566ef9f951407a438fed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b555d7fc53c99d9b3921eac9fa09e0b63e76ae181932d936148439b83e6b3b2
[INFO] running `Command { std: "docker" "start" "-a" "4b555d7fc53c99d9b3921eac9fa09e0b63e76ae181932d936148439b83e6b3b2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]  --> src/main.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let cpu: cpu::Cpu = cpu::Cpu::new();
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_cpu`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cpu-emulator` (bin "cpu-emulator" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cpu_emulator-082d5f4afda11b99)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test cpu::tests::test_and_x ... ok
[INFO] [stdout] test cpu::tests::test_or_y_x ... ok
[INFO] [stdout] test cpu::tests::test_and_y_x ... ok
[INFO] [stdout] test cpu::tests::test_mov_x ... ok
[INFO] [stdout] test cpu::tests::test_or_x ... ok
[INFO] [stdout] test cpu::tests::test_mov_y_x ... ok
[INFO] [stdout] test cpu::tests::test_add_y_x ... ok
[INFO] [stdout] test cpu::tests::test_fn_call_and_ret ... ok
[INFO] [stdout] test cpu::tests::test_jump ... ok
[INFO] [stdout] test cpu::tests::test_add_x ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b555d7fc53c99d9b3921eac9fa09e0b63e76ae181932d936148439b83e6b3b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b555d7fc53c99d9b3921eac9fa09e0b63e76ae181932d936148439b83e6b3b2", kill_on_drop: false }`
[INFO] [stdout] 4b555d7fc53c99d9b3921eac9fa09e0b63e76ae181932d936148439b83e6b3b2