[INFO] cloning repository https://github.com/atraber/rust-riscv-sim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/atraber/rust-riscv-sim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatraber%2Frust-riscv-sim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatraber%2Frust-riscv-sim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 028e59ceb8bf5c2b1a7cd4c5e1e1d80148e678f9
[INFO] testing atraber/rust-riscv-sim against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatraber%2Frust-riscv-sim" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/atraber/rust-riscv-sim
[INFO] finished tweaking git repo https://github.com/atraber/rust-riscv-sim
[INFO] tweaked toml for git repo https://github.com/atraber/rust-riscv-sim written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/atraber/rust-riscv-sim on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/atraber/rust-riscv-sim 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f3c1b3baa31423760872a55cf28b24ef201d09350654b603ab815cf0f7e259b
[INFO] running `Command { std: "docker" "start" "-a" "3f3c1b3baa31423760872a55cf28b24ef201d09350654b603ab815cf0f7e259b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f3c1b3baa31423760872a55cf28b24ef201d09350654b603ab815cf0f7e259b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f3c1b3baa31423760872a55cf28b24ef201d09350654b603ab815cf0f7e259b", kill_on_drop: false }`
[INFO] [stdout] 3f3c1b3baa31423760872a55cf28b24ef201d09350654b603ab815cf0f7e259b
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5778b290c939a07b18b400e6e73862c2f2d986b8e1cbc8e7fa54ecef14927616
[INFO] running `Command { std: "docker" "start" "-a" "5778b290c939a07b18b400e6e73862c2f2d986b8e1cbc8e7fa54ecef14927616", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling elf v0.0.10 (https://github.com/cole14/rust-elf#44654da0)
[INFO] [stderr]    Compiling riscv-sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/main.rs:238:18
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let imm0_5 = ((insn >>  2) & 0x1F);
[INFO] [stdout]     |                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -     let imm0_5 = ((insn >>  2) & 0x1F);
[INFO] [stdout] 238 +     let imm0_5 = (insn >>  2) & 0x1F;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/elf.rs:26:25
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     Err(err) => println!("Failed to write to addr 0x{:X}", section.shdr.addr + i),
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     for i in 0..100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:357:17
[INFO] [stdout]     |
[INFO] [stdout] 357 |             Err(e) => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:392:21
[INFO] [stdout]     |
[INFO] [stdout] 392 |                 Err(e)   => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/main.rs:415:20
[INFO] [stdout]     |
[INFO] [stdout] 415 |                 Ok(data) => {},
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:416:21
[INFO] [stdout]     |
[INFO] [stdout] 416 |                 Err(e)   => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs2`
[INFO] [stdout]    --> src/main.rs:434:26
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_rs2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs1`
[INFO] [stdout]    --> src/main.rs:434:31
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `funct3`
[INFO] [stdout]    --> src/main.rs:434:36
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_funct3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rd`
[INFO] [stdout]    --> src/main.rs:434:44
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_rd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs1`
[INFO] [stdout]    --> src/main.rs:446:23
[INFO] [stdout]     |
[INFO] [stdout] 446 |             let (imm, rs1, funct3, rd) = decode_i_type(insn);
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs1`
[INFO] [stdout]    --> src/main.rs:460:23
[INFO] [stdout]     |
[INFO] [stdout] 460 |             let (imm, rs1, funct3, rd) = decode_i_type(insn);
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fpr` and `spr` are never read
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct CpuRegisters {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fpr: [u64; 32], // TODO: currently unused
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 27 |     spr: [u64; 4096],
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_sb_type` is never used
[INFO] [stdout]    --> src/main.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn decode_sb_type(insn: u32) -> (i16, usize, usize, u8)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_uj_type` is never used
[INFO] [stdout]    --> src/main.rs:213:4
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn decode_uj_type(insn: u32) -> (u32, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cr_type` is never used
[INFO] [stdout]    --> src/main.rs:225:4
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn decode_cr_type(insn: u32) -> (u8, usize, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_ci_type` is never used
[INFO] [stdout]    --> src/main.rs:234:4
[INFO] [stdout]     |
[INFO] [stdout] 234 | fn decode_ci_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_css_type` is never used
[INFO] [stdout]    --> src/main.rs:246:4
[INFO] [stdout]     |
[INFO] [stdout] 246 | fn decode_css_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_ciw_type` is never used
[INFO] [stdout]    --> src/main.rs:255:4
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn decode_ciw_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cl_type` is never used
[INFO] [stdout]    --> src/main.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn decode_cl_type(insn: u32) -> (u8, i16, usize, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cs_type` is never used
[INFO] [stdout]    --> src/main.rs:277:4
[INFO] [stdout]     |
[INFO] [stdout] 277 | fn decode_cs_type(insn: u32) -> (u8, i16, usize, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cb_type` is never used
[INFO] [stdout]    --> src/main.rs:283:4
[INFO] [stdout]     |
[INFO] [stdout] 283 | fn decode_cb_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cj_type` is never used
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode_cj_type(insn: u32) -> (u8, i16)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "5778b290c939a07b18b400e6e73862c2f2d986b8e1cbc8e7fa54ecef14927616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5778b290c939a07b18b400e6e73862c2f2d986b8e1cbc8e7fa54ecef14927616", kill_on_drop: false }`
[INFO] [stdout] 5778b290c939a07b18b400e6e73862c2f2d986b8e1cbc8e7fa54ecef14927616
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 901b41cc14f04ae31df6086b1f27500e6b50fc4d33362afb76e395dade9d697a
[INFO] running `Command { std: "docker" "start" "-a" "901b41cc14f04ae31df6086b1f27500e6b50fc4d33362afb76e395dade9d697a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling riscv-sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/main.rs:238:18
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let imm0_5 = ((insn >>  2) & 0x1F);
[INFO] [stdout]     |                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -     let imm0_5 = ((insn >>  2) & 0x1F);
[INFO] [stdout] 238 +     let imm0_5 = (insn >>  2) & 0x1F;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/elf.rs:26:25
[INFO] [stdout]    |
[INFO] [stdout] 26 |                     Err(err) => println!("Failed to write to addr 0x{:X}", section.shdr.addr + i),
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     for i in 0..100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:357:17
[INFO] [stdout]     |
[INFO] [stdout] 357 |             Err(e) => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:392:21
[INFO] [stdout]     |
[INFO] [stdout] 392 |                 Err(e)   => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/main.rs:415:20
[INFO] [stdout]     |
[INFO] [stdout] 415 |                 Ok(data) => {},
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:416:21
[INFO] [stdout]     |
[INFO] [stdout] 416 |                 Err(e)   => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs2`
[INFO] [stdout]    --> src/main.rs:434:26
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_rs2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs1`
[INFO] [stdout]    --> src/main.rs:434:31
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `funct3`
[INFO] [stdout]    --> src/main.rs:434:36
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_funct3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rd`
[INFO] [stdout]    --> src/main.rs:434:44
[INFO] [stdout]     |
[INFO] [stdout] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stdout]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_rd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs1`
[INFO] [stdout]    --> src/main.rs:446:23
[INFO] [stdout]     |
[INFO] [stdout] 446 |             let (imm, rs1, funct3, rd) = decode_i_type(insn);
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rs1`
[INFO] [stdout]    --> src/main.rs:460:23
[INFO] [stdout]     |
[INFO] [stdout] 460 |             let (imm, rs1, funct3, rd) = decode_i_type(insn);
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fpr` and `spr` are never read
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct CpuRegisters {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fpr: [u64; 32], // TODO: currently unused
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 27 |     spr: [u64; 4096],
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_sb_type` is never used
[INFO] [stdout]    --> src/main.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn decode_sb_type(insn: u32) -> (i16, usize, usize, u8)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_uj_type` is never used
[INFO] [stdout]    --> src/main.rs:213:4
[INFO] [stdout]     |
[INFO] [stdout] 213 | fn decode_uj_type(insn: u32) -> (u32, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cr_type` is never used
[INFO] [stdout]    --> src/main.rs:225:4
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn decode_cr_type(insn: u32) -> (u8, usize, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_ci_type` is never used
[INFO] [stdout]    --> src/main.rs:234:4
[INFO] [stdout]     |
[INFO] [stdout] 234 | fn decode_ci_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_css_type` is never used
[INFO] [stdout]    --> src/main.rs:246:4
[INFO] [stdout]     |
[INFO] [stdout] 246 | fn decode_css_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_ciw_type` is never used
[INFO] [stdout]    --> src/main.rs:255:4
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn decode_ciw_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cl_type` is never used
[INFO] [stdout]    --> src/main.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn decode_cl_type(insn: u32) -> (u8, i16, usize, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cs_type` is never used
[INFO] [stdout]    --> src/main.rs:277:4
[INFO] [stdout]     |
[INFO] [stdout] 277 | fn decode_cs_type(insn: u32) -> (u8, i16, usize, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cb_type` is never used
[INFO] [stdout]    --> src/main.rs:283:4
[INFO] [stdout]     |
[INFO] [stdout] 283 | fn decode_cb_type(insn: u32) -> (u8, i16, usize)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_cj_type` is never used
[INFO] [stdout]    --> src/main.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn decode_cj_type(insn: u32) -> (u8, i16)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "901b41cc14f04ae31df6086b1f27500e6b50fc4d33362afb76e395dade9d697a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "901b41cc14f04ae31df6086b1f27500e6b50fc4d33362afb76e395dade9d697a", kill_on_drop: false }`
[INFO] [stdout] 901b41cc14f04ae31df6086b1f27500e6b50fc4d33362afb76e395dade9d697a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f8a1c4b76c2a242bf44c124b03366a2ce6e2b17b9bc1f04779724b00d67d5d83
[INFO] running `Command { std: "docker" "start" "-a" "f8a1c4b76c2a242bf44c124b03366a2ce6e2b17b9bc1f04779724b00d67d5d83", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:238:18
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 238 |     let imm0_5 = ((insn >>  2) & 0x1F);
[INFO] [stdout] 
[INFO] [stderr]     |                  ^                   ^
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 238 -     let imm0_5 = ((insn >>  2) & 0x1F);
[INFO] [stderr] 238 +     let imm0_5 = (insn >>  2) & 0x1F;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/elf.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |                     Err(err) => println!("Failed to write to addr 0x{:X}", section.shdr.addr + i),
[INFO] [stderr]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     for i in 0..100 {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:339:13
[INFO] [stderr]     |
[INFO] [stderr] 339 |         Err(e) => {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:357:17
[INFO] [stderr]     |
[INFO] [stderr] 357 |             Err(e) => {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:392:21
[INFO] [stderr]     |
[INFO] [stderr] 392 |                 Err(e)   => {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/main.rs:415:20
[INFO] [stderr]     |
[INFO] [stderr] 415 |                 Ok(data) => {},
[INFO] [stderr]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:416:21
[INFO] [stderr]     |
[INFO] [stderr] 416 |                 Err(e)   => {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rs2`
[INFO] [stderr]    --> src/main.rs:434:26
[INFO] [stderr]     |
[INFO] [stderr] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stderr]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_rs2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rs1`
[INFO] [stderr]    --> src/main.rs:434:31
[INFO] [stderr]     |
[INFO] [stderr] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stderr]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `funct3`
[INFO] [stderr]    --> src/main.rs:434:36
[INFO] [stderr]     |
[INFO] [stderr] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stderr]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_funct3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rd`
[INFO] [stderr]    --> src/main.rs:434:44
[INFO] [stderr]     |
[INFO] [stderr] 434 |             let (funct7, rs2, rs1, funct3, rd) = decode_r_type(insn);
[INFO] [stderr]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_rd`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rs1`
[INFO] [stderr]    --> src/main.rs:446:23
[INFO] [stderr]     |
[INFO] [stderr] 446 |             let (imm, rs1, funct3, rd) = decode_i_type(insn);
[INFO] [stderr]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rs1`
[INFO] [stderr]    --> src/main.rs:460:23
[INFO] [stderr]     |
[INFO] [stderr] 460 |             let (imm, rs1, funct3, rd) = decode_i_type(insn);
[INFO] [stderr]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_rs1`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `fpr` and `spr` are never read
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct CpuRegisters {
[INFO] [stderr]    |        ------------ fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fpr: [u64; 32], // TODO: currently unused
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 27 |     spr: [u64; 4096],
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_sb_type` is never used
[INFO] [stderr]    --> src/main.rs:191:4
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn decode_sb_type(insn: u32) -> (i16, usize, usize, u8)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_uj_type` is never used
[INFO] [stderr]    --> src/main.rs:213:4
[INFO] [stderr]     |
[INFO] [stderr] 213 | fn decode_uj_type(insn: u32) -> (u32, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_cr_type` is never used
[INFO] [stderr]    --> src/main.rs:225:4
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn decode_cr_type(insn: u32) -> (u8, usize, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_ci_type` is never used
[INFO] [stderr]    --> src/main.rs:234:4
[INFO] [stderr]     |
[INFO] [stderr] 234 | fn decode_ci_type(insn: u32) -> (u8, i16, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_css_type` is never used
[INFO] [stderr]    --> src/main.rs:246:4
[INFO] [stderr]     |
[INFO] [stderr] 246 | fn decode_css_type(insn: u32) -> (u8, i16, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_ciw_type` is never used
[INFO] [stderr]    --> src/main.rs:255:4
[INFO] [stderr]     |
[INFO] [stderr] 255 | fn decode_ciw_type(insn: u32) -> (u8, i16, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_cl_type` is never used
[INFO] [stderr]    --> src/main.rs:264:4
[INFO] [stderr]     |
[INFO] [stderr] 264 | fn decode_cl_type(insn: u32) -> (u8, i16, usize, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_cs_type` is never used
[INFO] [stderr]    --> src/main.rs:277:4
[INFO] [stderr]     |
[INFO] [stderr] 277 | fn decode_cs_type(insn: u32) -> (u8, i16, usize, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_cb_type` is never used
[INFO] [stderr]    --> src/main.rs:283:4
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn decode_cb_type(insn: u32) -> (u8, i16, usize)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode_cj_type` is never used
[INFO] [stderr]    --> src/main.rs:295:4
[INFO] [stderr]     |
[INFO] [stderr] 295 | fn decode_cj_type(insn: u32) -> (u8, i16)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `riscv-sim` (bin "riscv-sim" test) generated 25 warnings (run `cargo fix --bin "riscv-sim" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/riscv_sim-1da86e4eb61ecbf7)
[INFO] running `Command { std: "docker" "inspect" "f8a1c4b76c2a242bf44c124b03366a2ce6e2b17b9bc1f04779724b00d67d5d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a1c4b76c2a242bf44c124b03366a2ce6e2b17b9bc1f04779724b00d67d5d83", kill_on_drop: false }`
[INFO] [stdout] f8a1c4b76c2a242bf44c124b03366a2ce6e2b17b9bc1f04779724b00d67d5d83
