[INFO] cloning repository https://github.com/gotti/rs-riscv-sc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gotti/rs-riscv-sc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgotti%2Frs-riscv-sc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgotti%2Frs-riscv-sc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67a27b97a9b89638728fcdd08acf5b9a69d0dbe8
[INFO] checking gotti/rs-riscv-sc against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgotti%2Frs-riscv-sc" "/workspace/builds/worker-49/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-49/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gotti/rs-riscv-sc on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gotti/rs-riscv-sc
[INFO] finished tweaking git repo https://github.com/gotti/rs-riscv-sc
[INFO] tweaked toml for git repo https://github.com/gotti/rs-riscv-sc written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] crate git repo https://github.com/gotti/rs-riscv-sc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea7e88cc82e904e785b3663434411b68044749cd32cd9694cf003477c1fa04ed
[INFO] running `Command { std: "docker" "start" "-a" "ea7e88cc82e904e785b3663434411b68044749cd32cd9694cf003477c1fa04ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea7e88cc82e904e785b3663434411b68044749cd32cd9694cf003477c1fa04ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea7e88cc82e904e785b3663434411b68044749cd32cd9694cf003477c1fa04ed", kill_on_drop: false }`
[INFO] [stdout] ea7e88cc82e904e785b3663434411b68044749cd32cd9694cf003477c1fa04ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6dcae40172aa5008645af034281a0f5f6cd10e0dd74d810887feac855a3d5f8
[INFO] running `Command { std: "docker" "start" "-a" "a6dcae40172aa5008645af034281a0f5f6cd10e0dd74d810887feac855a3d5f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rs-riscv-sc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/main.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, io};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `str::FromStr`
[INFO] [stdout]  --> src/cpu.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io, str::FromStr};
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/main.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{env, io};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `str::FromStr`
[INFO] [stdout]  --> src/cpu.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io, str::FromStr};
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/cpu.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 111 | /         loop {
[INFO] [stdout] 112 | |             let old_pc = self.pc;
[INFO] [stdout] 113 | |             let (inst, op_len) = self.fetch();
[INFO] [stdout] 114 | |             let mut backup_register: [u64; 32] = [0; 32];
[INFO] [stdout] ...   |
[INFO] [stdout] 149 | |             }
[INFO] [stdout] 150 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 151 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/cpu.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 111 | /         loop {
[INFO] [stdout] 112 | |             let old_pc = self.pc;
[INFO] [stdout] 113 | |             let (inst, op_len) = self.fetch();
[INFO] [stdout] 114 | |             let mut backup_register: [u64; 32] = [0; 32];
[INFO] [stdout] ...   |
[INFO] [stdout] 149 | |             }
[INFO] [stdout] 150 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 151 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut memory: Vec<u8> = Vec::with_capacity(1000);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[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/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut memory: Vec<u8> = Vec::with_capacity(1000);
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut mmu = Mmu::new(buf, test_mode);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut csr = Csr::new([0; 4096]);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut reg = Register::new([0; 32]);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut memory: Vec<u8> = Vec::with_capacity(1000);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[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/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut memory: Vec<u8> = Vec::with_capacity(1000);
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut mmu = Mmu::new(buf, test_mode);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut csr = Csr::new([0; 4096]);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut reg = Register::new([0; 32]);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SLL`
[INFO] [stdout]   --> src/cpu.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub const SLL: u32 = 0b001;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SLT`
[INFO] [stdout]   --> src/cpu.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub const SLT: u32 = 0b010;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SLTU`
[INFO] [stdout]   --> src/cpu.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub const SLTU: u32 = 0b011;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `XOR`
[INFO] [stdout]   --> src/cpu.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub const XOR: u32 = 0b100;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SRL_SRA`
[INFO] [stdout]   --> src/cpu.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub const SRL_SRA: u32 = 0b101;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OR`
[INFO] [stdout]   --> src/cpu.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub const OR: u32 = 0b110;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `AND`
[INFO] [stdout]   --> src/cpu.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub const AND: u32 = 0b111;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `hypervisor`
[INFO] [stdout]   --> src/cpu.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub const hypervisor: u8 = 0b10;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_imm_ld`
[INFO] [stdout]    --> src/cpu.rs:640:12
[INFO] [stdout]     |
[INFO] [stdout] 640 |     pub fn get_imm_ld(inst: u32) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `user` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub const user: u8 = 0b00;
[INFO] [stdout]    |               ^^^^ help: convert the identifier to upper case: `USER`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `supervisor` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub const supervisor: u8 = 0b01;
[INFO] [stdout]    |               ^^^^^^^^^^ help: convert the identifier to upper case: `SUPERVISOR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `hypervisor` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:81:15
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub const hypervisor: u8 = 0b10;
[INFO] [stdout]    |               ^^^^^^^^^^ help: convert the identifier to upper case: `HYPERVISOR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `machine` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:82:15
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub const machine: u8 = 0b11;
[INFO] [stdout]    |               ^^^^^^^ help: convert the identifier to upper case: `MACHINE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ecall` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:86:15
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub const ecall: u32 = 0;
[INFO] [stdout]    |               ^^^^^ help: convert the identifier to upper case: `ECALL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `mret` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub const mret: u32 = 0b001100000010;
[INFO] [stdout]    |               ^^^^ help: convert the identifier to upper case: `MRET`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SLL`
[INFO] [stdout]   --> src/cpu.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub const SLL: u32 = 0b001;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SLT`
[INFO] [stdout]   --> src/cpu.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub const SLT: u32 = 0b010;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SLTU`
[INFO] [stdout]   --> src/cpu.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub const SLTU: u32 = 0b011;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `XOR`
[INFO] [stdout]   --> src/cpu.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub const XOR: u32 = 0b100;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SRL_SRA`
[INFO] [stdout]   --> src/cpu.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub const SRL_SRA: u32 = 0b101;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `OR`
[INFO] [stdout]   --> src/cpu.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub const OR: u32 = 0b110;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `AND`
[INFO] [stdout]   --> src/cpu.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub const AND: u32 = 0b111;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `hypervisor`
[INFO] [stdout]   --> src/cpu.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub const hypervisor: u8 = 0b10;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_imm_ld`
[INFO] [stdout]    --> src/cpu.rs:640:12
[INFO] [stdout]     |
[INFO] [stdout] 640 |     pub fn get_imm_ld(inst: u32) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `user` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub const user: u8 = 0b00;
[INFO] [stdout]    |               ^^^^ help: convert the identifier to upper case: `USER`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `supervisor` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub const supervisor: u8 = 0b01;
[INFO] [stdout]    |               ^^^^^^^^^^ help: convert the identifier to upper case: `SUPERVISOR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `hypervisor` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:81:15
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub const hypervisor: u8 = 0b10;
[INFO] [stdout]    |               ^^^^^^^^^^ help: convert the identifier to upper case: `HYPERVISOR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `machine` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:82:15
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub const machine: u8 = 0b11;
[INFO] [stdout]    |               ^^^^^^^ help: convert the identifier to upper case: `MACHINE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ecall` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:86:15
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub const ecall: u32 = 0;
[INFO] [stdout]    |               ^^^^^ help: convert the identifier to upper case: `ECALL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `mret` should have an upper case name
[INFO] [stdout]   --> src/cpu.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub const mret: u32 = 0b001100000010;
[INFO] [stdout]    |               ^^^^ help: convert the identifier to upper case: `MRET`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "a6dcae40172aa5008645af034281a0f5f6cd10e0dd74d810887feac855a3d5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6dcae40172aa5008645af034281a0f5f6cd10e0dd74d810887feac855a3d5f8", kill_on_drop: false }`
[INFO] [stdout] a6dcae40172aa5008645af034281a0f5f6cd10e0dd74d810887feac855a3d5f8