[INFO] cloning repository https://github.com/willerf/mips-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willerf/mips-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillerf%2Fmips-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillerf%2Fmips-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95898d670ac083963bef9f56279ad4681ac1e720
[INFO] checking willerf/mips-emulator/95898d670ac083963bef9f56279ad4681ac1e720 against 1ed2df61a19042f231709eb05d032ae9e2cb2084 for pr-160235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillerf%2Fmips-emulator" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/willerf/mips-emulator
[INFO] finished tweaking git repo https://github.com/willerf/mips-emulator
[INFO] tweaked toml for git repo https://github.com/willerf/mips-emulator written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/willerf/mips-emulator on toolchain 1ed2df61a19042f231709eb05d032ae9e2cb2084
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ed2df61a19042f231709eb05d032ae9e2cb2084" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/willerf/mips-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" "+1ed2df61a19042f231709eb05d032ae9e2cb2084" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7
[INFO] running `Command { std: "docker" "start" "00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7" "/opt/rustwide/cargo-home/bin/cargo" "+1ed2df61a19042f231709eb05d032ae9e2cb2084" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7" "/opt/rustwide/cargo-home/bin/cargo" "+1ed2df61a19042f231709eb05d032ae9e2cb2084" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking env_logger v0.9.1
[INFO] [stderr]     Checking rust-cs241e v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `temp_sp` is never read
[INFO] [stdout]    --> src/mips_cpu.rs:190:23
[INFO] [stdout]     |
[INFO] [stdout] 190 |     let mut temp_sp = 0;
[INFO] [stdout]     |                       ^ this value is reassigned later and never used
[INFO] [stdout] 191 |     while state.read_reg(PC) != termination_pc {
[INFO] [stdout] 192 |         temp_sp = state.read_reg(30);
[INFO] [stdout]     |         ---------------------------- `temp_sp` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap_addr`
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let heap_addr = mem.size();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heap_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mips_arr_example` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn mips_arr_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `temp_sp` is never read
[INFO] [stdout]    --> src/mips_cpu.rs:190:23
[INFO] [stdout]     |
[INFO] [stdout] 190 |     let mut temp_sp = 0;
[INFO] [stdout]     |                       ^ this value is reassigned later and never used
[INFO] [stdout] 191 |     while state.read_reg(PC) != termination_pc {
[INFO] [stdout] 192 |         temp_sp = state.read_reg(30);
[INFO] [stdout]     |         ---------------------------- `temp_sp` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heap_addr`
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let heap_addr = mem.size();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heap_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mips_arr_example` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn mips_arr_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `Command { std: "docker" "inspect" "00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7", kill_on_drop: false }`
[INFO] [stdout] 00f4e94bd88f1f86b898eeee63d5ef43f7d49cf27c310ace13d8be969be62cd7
