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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfeitong/cft-riscv-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfeitong%2Fcft-riscv-vm", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfeitong%2Fcft-riscv-vm" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/cfeitong/cft-riscv-vm on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
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[INFO] started tweaking git repo https://github.com/cfeitong/cft-riscv-vm
[INFO] finished tweaking git repo https://github.com/cfeitong/cft-riscv-vm
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[INFO] crate git repo https://github.com/cfeitong/cft-riscv-vm already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: fields `reg`, `pc`, and `bus` are never read
[INFO] [stdout]  --> src/cpu.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Cpu {
[INFO] [stdout]   |            --- fields in this struct
[INFO] [stdout] 7 |     pub reg: [u64; 32],
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 8 |     pub pc: u64,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 9 |     pub bus: Bus,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/cpu.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Bus {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 13 |     mem: Mem,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/cpu.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Bus {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 17 |     pub fn read(&self, addr: u64, buf: &mut [u8]) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn write(&mut self, addr: u64, data: &[u8]) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cpu.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Mem(pub Vec<u8>);
[INFO] [stdout]    |            --- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Mem(());
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `execute` are never used
[INFO] [stdout]   --> src/cpu.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Cpu {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 40 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn execute(&mut self, ins_buf: &[u32]) -> Result<()>{
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPCODE_SIZE` is never used
[INFO] [stdout]  --> src/instruction/mod.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const OPCODE_SIZE: usize = 1 << 5;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `InsImpl` is never used
[INFO] [stdout]  --> src/instruction/mod.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type InsImpl = fn(u32, &mut Cpu);
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Instruction` is never constructed
[INFO] [stdout]   --> src/instruction/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Instruction(pub u32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opcode` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Instruction {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 14 |     pub fn opcode(self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `instruction_array` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn instruction_array() -> &'static [InsImpl; OPCODE_SIZE] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nop` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn nop(_: u32, _: &mut Cpu) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `low_bitmask_u8` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn low_bitmask_u8(cnt: usize) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `low_bitmask_u32` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn low_bitmask_u32(cnt: usize) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RFormat` is never constructed
[INFO] [stdout]  --> src/instruction/format.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct RFormat(pub u32);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct IFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `imm`, `rs1`, `funct3`, `rd`, and `opcode` are never used
[INFO] [stdout]   --> src/instruction/format.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl IFormat {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 15 |     pub fn imm(self) -> u32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn rs1(self) -> u8 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn funct3(self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn rd(self) -> u8 {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn opcode(self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct SFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SBFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct SBFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SBFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct UFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `imm`, `rd`, and `opcode` are never used
[INFO] [stdout]   --> src/instruction/format.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl UFormat {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 51 |     pub fn imm(self) -> u32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn rd(self) -> u8 {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn opcode(self) -> u8{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UJFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct UJFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UJFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `OPCODE2INS_IMPL` is never used
[INFO] [stdout]  --> src/instruction/rv32i.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub static OPCODE2INS_IMPL: LazyLock<BTreeMap<u8, InsImpl>> = LazyLock::new(|| {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lui` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn lui(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `auipc` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn auipc(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `addi` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn addi(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `l` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn l(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_mem` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn load_mem<const BYTES: usize>(instruction: IFormat, cpu: &mut Cpu) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_instructions` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn register_instructions(map: &mut BTreeMap<u8, InsImpl>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sext` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn sext(imm: u32, msb: usize) -> u64 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpu`
[INFO] [stdout]    --> src/instruction/rv32i.rs:123:17
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut 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: variable does not need to be mutable
[INFO] [stdout]    --> src/instruction/rv32i.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut cpu = Cpu::new();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RFormat` is never constructed
[INFO] [stdout]  --> src/instruction/format.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct RFormat(pub u32);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opcode` is never used
[INFO] [stdout]   --> src/instruction/format.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl IFormat {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn opcode(self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct SFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SBFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct SBFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SBFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opcode` is never used
[INFO] [stdout]   --> src/instruction/format.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl UFormat {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn opcode(self) -> u8{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UJFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct UJFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UJFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.02s
[INFO] running `Command { std: "docker" "inspect" "97b0c27345601e4946679ae62abc8da33ebc45a2616df20417c46eb7d31b626b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b0c27345601e4946679ae62abc8da33ebc45a2616df20417c46eb7d31b626b", kill_on_drop: false }`
[INFO] [stdout] 97b0c27345601e4946679ae62abc8da33ebc45a2616df20417c46eb7d31b626b
[INFO] checking cfeitong/cft-riscv-vm against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfeitong%2Fcft-riscv-vm" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cfeitong/cft-riscv-vm on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cfeitong/cft-riscv-vm
[INFO] finished tweaking git repo https://github.com/cfeitong/cft-riscv-vm
[INFO] tweaked toml for git repo https://github.com/cfeitong/cft-riscv-vm written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cfeitong/cft-riscv-vm 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92bb9b9c364f476c4af0277755ba184aad0d99d249257bc0c7970c49f22734de
[INFO] running `Command { std: "docker" "start" "-a" "92bb9b9c364f476c4af0277755ba184aad0d99d249257bc0c7970c49f22734de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92bb9b9c364f476c4af0277755ba184aad0d99d249257bc0c7970c49f22734de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92bb9b9c364f476c4af0277755ba184aad0d99d249257bc0c7970c49f22734de", kill_on_drop: false }`
[INFO] [stdout] 92bb9b9c364f476c4af0277755ba184aad0d99d249257bc0c7970c49f22734de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6afa25f19964a669f65f83245e27426896f83a00081538390c87e8578f7f1db
[INFO] running `Command { std: "docker" "start" "-a" "e6afa25f19964a669f65f83245e27426896f83a00081538390c87e8578f7f1db", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]    Compiling syn v2.0.22
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling tracing-attributes v0.1.24
[INFO] [stderr]     Checking ruzstd v0.3.1
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking cft-riscv-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `reg`, `pc`, and `bus` are never read
[INFO] [stdout]  --> src/cpu.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Cpu {
[INFO] [stdout]   |            --- fields in this struct
[INFO] [stdout] 7 |     pub reg: [u64; 32],
[INFO] [stdout]   |         ^^^
[INFO] [stdout] 8 |     pub pc: u64,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 9 |     pub bus: Bus,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/cpu.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Bus {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 13 |     mem: Mem,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/cpu.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Bus {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 17 |     pub fn read(&self, addr: u64, buf: &mut [u8]) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn write(&mut self, addr: u64, data: &[u8]) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cpu.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Mem(pub Vec<u8>);
[INFO] [stdout]    |            --- ^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Mem(());
[INFO] [stdout]    |                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `execute` are never used
[INFO] [stdout]   --> src/cpu.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Cpu {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 40 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn execute(&mut self, ins_buf: &[u32]) -> Result<()>{
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPCODE_SIZE` is never used
[INFO] [stdout]  --> src/instruction/mod.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const OPCODE_SIZE: usize = 1 << 5;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `InsImpl` is never used
[INFO] [stdout]  --> src/instruction/mod.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type InsImpl = fn(u32, &mut Cpu);
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Instruction` is never constructed
[INFO] [stdout]   --> src/instruction/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Instruction(pub u32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opcode` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Instruction {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 14 |     pub fn opcode(self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `instruction_array` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn instruction_array() -> &'static [InsImpl; OPCODE_SIZE] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nop` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn nop(_: u32, _: &mut Cpu) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `low_bitmask_u8` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn low_bitmask_u8(cnt: usize) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `low_bitmask_u32` is never used
[INFO] [stdout]   --> src/instruction/mod.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn low_bitmask_u32(cnt: usize) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RFormat` is never constructed
[INFO] [stdout]  --> src/instruction/format.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct RFormat(pub u32);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct IFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `imm`, `rs1`, `funct3`, `rd`, and `opcode` are never used
[INFO] [stdout]   --> src/instruction/format.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl IFormat {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 15 |     pub fn imm(self) -> u32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn rs1(self) -> u8 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn funct3(self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn rd(self) -> u8 {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn opcode(self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct SFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SBFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct SBFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SBFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct UFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `imm`, `rd`, and `opcode` are never used
[INFO] [stdout]   --> src/instruction/format.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl UFormat {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 51 |     pub fn imm(self) -> u32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn rd(self) -> u8 {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn opcode(self) -> u8{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UJFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct UJFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UJFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `OPCODE2INS_IMPL` is never used
[INFO] [stdout]  --> src/instruction/rv32i.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub static OPCODE2INS_IMPL: LazyLock<BTreeMap<u8, InsImpl>> = LazyLock::new(|| {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lui` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn lui(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `auipc` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn auipc(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `addi` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn addi(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `l` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn l(instruction: u32, cpu: &mut Cpu) {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_mem` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn load_mem<const BYTES: usize>(instruction: IFormat, cpu: &mut Cpu) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_instructions` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn register_instructions(map: &mut BTreeMap<u8, InsImpl>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sext` is never used
[INFO] [stdout]   --> src/instruction/rv32i.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn sext(imm: u32, msb: usize) -> u64 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpu`
[INFO] [stdout]    --> src/instruction/rv32i.rs:123:17
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut 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: variable does not need to be mutable
[INFO] [stdout]    --> src/instruction/rv32i.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let mut cpu = Cpu::new();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RFormat` is never constructed
[INFO] [stdout]  --> src/instruction/format.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct RFormat(pub u32);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opcode` is never used
[INFO] [stdout]   --> src/instruction/format.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl IFormat {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn opcode(self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct SFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SBFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct SBFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SBFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opcode` is never used
[INFO] [stdout]   --> src/instruction/format.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl UFormat {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn opcode(self) -> u8{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UJFormat` is never constructed
[INFO] [stdout]   --> src/instruction/format.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct UJFormat(pub u32);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UJFormat` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.79s
[INFO] running `Command { std: "docker" "inspect" "e6afa25f19964a669f65f83245e27426896f83a00081538390c87e8578f7f1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6afa25f19964a669f65f83245e27426896f83a00081538390c87e8578f7f1db", kill_on_drop: false }`
[INFO] [stdout] e6afa25f19964a669f65f83245e27426896f83a00081538390c87e8578f7f1db