[INFO] cloning repository https://github.com/Zakki0925224/hardware-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zakki0925224/hardware-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZakki0925224%2Fhardware-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZakki0925224%2Fhardware-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aae770a8c0a71c0bfdb087f6fe3d7342f3c8674f
[INFO] checking Zakki0925224/hardware-emulator against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZakki0925224%2Fhardware-emulator" "/workspace/builds/worker-57/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-57/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Zakki0925224/hardware-emulator on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Zakki0925224/hardware-emulator
[INFO] finished tweaking git repo https://github.com/Zakki0925224/hardware-emulator
[INFO] tweaked toml for git repo https://github.com/Zakki0925224/hardware-emulator written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate git repo https://github.com/Zakki0925224/hardware-emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5189c12c5386ed981c99a979be595a5417f3ceefb6838c98bbd3d9a6cd47fb5b
[INFO] running `Command { std: "docker" "start" "-a" "5189c12c5386ed981c99a979be595a5417f3ceefb6838c98bbd3d9a6cd47fb5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5189c12c5386ed981c99a979be595a5417f3ceefb6838c98bbd3d9a6cd47fb5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5189c12c5386ed981c99a979be595a5417f3ceefb6838c98bbd3d9a6cd47fb5b", kill_on_drop: false }`
[INFO] [stdout] 5189c12c5386ed981c99a979be595a5417f3ceefb6838c98bbd3d9a6cd47fb5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbf348b9741ccd4a025a67e15ee9f2c426fb53f34a9555d077a46a79be7b1ab1
[INFO] running `Command { std: "docker" "start" "-a" "dbf348b9741ccd4a025a67e15ee9f2c426fb53f34a9555d077a46a79be7b1ab1", kill_on_drop: false }`
[INFO] [stderr]     Checking remu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/hw/ram.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         for i in 0..size
[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 variable: `i`
[INFO] [stdout]   --> src/hw/ram.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         for i in 0..size
[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: field is never read: `registers`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     registers: Vec<u32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `program_counter`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     program_counter: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_register`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     base_register: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index_register`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     index_register: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instruction_register`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     instruction_register: u32
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `registers`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     registers: Vec<u32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `program_counter`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     program_counter: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_register`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     base_register: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index_register`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     index_register: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instruction_register`
[INFO] [stdout]  --> src/arch/x86/cpu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     instruction_register: u32
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "dbf348b9741ccd4a025a67e15ee9f2c426fb53f34a9555d077a46a79be7b1ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf348b9741ccd4a025a67e15ee9f2c426fb53f34a9555d077a46a79be7b1ab1", kill_on_drop: false }`
[INFO] [stdout] dbf348b9741ccd4a025a67e15ee9f2c426fb53f34a9555d077a46a79be7b1ab1