[INFO] cloning repository https://github.com/gil0mendes/rust-lc3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gil0mendes/rust-lc3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgil0mendes%2Frust-lc3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgil0mendes%2Frust-lc3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8fba8bf14efa798b1763dd43271cb983954472c
[INFO] building gil0mendes/rust-lc3 against master#d59f06fc64844ec2073e5e888f7470989ef25ff9 for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgil0mendes%2Frust-lc3" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gil0mendes/rust-lc3 on toolchain d59f06fc64844ec2073e5e888f7470989ef25ff9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gil0mendes/rust-lc3
[INFO] finished tweaking git repo https://github.com/gil0mendes/rust-lc3
[INFO] tweaked toml for git repo https://github.com/gil0mendes/rust-lc3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gil0mendes/rust-lc3 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" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] building gil0mendes/rust-lc3 against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgil0mendes%2Frust-lc3" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gil0mendes/rust-lc3 on toolchain fe8f664b41f030f307cfeb6cb8c3a1419292aeed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gil0mendes/rust-lc3
[INFO] finished tweaking git repo https://github.com/gil0mendes/rust-lc3
[INFO] tweaked toml for git repo https://github.com/gil0mendes/rust-lc3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gil0mendes/rust-lc3 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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81eeece015ff24e3301e6670a0e49c63d3aa33c33504d4243565b61e3b5ad49a
[INFO] running `Command { std: "docker" "start" "-a" "81eeece015ff24e3301e6670a0e49c63d3aa33c33504d4243565b61e3b5ad49a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81eeece015ff24e3301e6670a0e49c63d3aa33c33504d4243565b61e3b5ad49a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81eeece015ff24e3301e6670a0e49c63d3aa33c33504d4243565b61e3b5ad49a", kill_on_drop: false }`
[INFO] [stdout] 81eeece015ff24e3301e6670a0e49c63d3aa33c33504d4243565b61e3b5ad49a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99087be4e393d931016a4012d6c7d8c94fd12b7b9273c6d57c318374c8e7f9ca
[INFO] running `Command { std: "docker" "start" "-a" "99087be4e393d931016a4012d6c7d8c94fd12b7b9273c6d57c318374c8e7f9ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling lc-3-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Instructions` is never used
[INFO] [stdout]  --> src/emulator/cpu/instructions.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Instructions {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Flags` is never constructed
[INFO] [stdout]  --> src/emulator/cpu/registers.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Flags {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Registers` is never constructed
[INFO] [stdout]   --> src/emulator/cpu/registers.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Registers {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MEMORY_SIZE` is never used
[INFO] [stdout]  --> src/emulator/memory.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const MEMORY_SIZE: usize = u16::MAX as usize;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Memory` is never constructed
[INFO] [stdout]  --> src/emulator/memory.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Memory {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "99087be4e393d931016a4012d6c7d8c94fd12b7b9273c6d57c318374c8e7f9ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99087be4e393d931016a4012d6c7d8c94fd12b7b9273c6d57c318374c8e7f9ca", kill_on_drop: false }`
[INFO] [stdout] 99087be4e393d931016a4012d6c7d8c94fd12b7b9273c6d57c318374c8e7f9ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8e2357d7ec98716b7eebd8816a48daaba88328a3c9c9be5ac2fe8864151ca70
[INFO] running `Command { std: "docker" "start" "-a" "f8e2357d7ec98716b7eebd8816a48daaba88328a3c9c9be5ac2fe8864151ca70", kill_on_drop: false }`
[INFO] [stderr]    Compiling lc-3-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Instructions` is never used
[INFO] [stdout]  --> src/emulator/cpu/instructions.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Instructions {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Flags` is never constructed
[INFO] [stdout]  --> src/emulator/cpu/registers.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Flags {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Registers` is never constructed
[INFO] [stdout]   --> src/emulator/cpu/registers.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Registers {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MEMORY_SIZE` is never used
[INFO] [stdout]  --> src/emulator/memory.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const MEMORY_SIZE: usize = u16::MAX as usize;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Memory` is never constructed
[INFO] [stdout]  --> src/emulator/memory.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Memory {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "f8e2357d7ec98716b7eebd8816a48daaba88328a3c9c9be5ac2fe8864151ca70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8e2357d7ec98716b7eebd8816a48daaba88328a3c9c9be5ac2fe8864151ca70", kill_on_drop: false }`
[INFO] [stdout] f8e2357d7ec98716b7eebd8816a48daaba88328a3c9c9be5ac2fe8864151ca70