[INFO] cloning repository https://github.com/jono94/rust-ethereum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jono94/rust-ethereum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjono94%2Frust-ethereum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjono94%2Frust-ethereum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1095544b3fbfcc971fbe24d7011f6017ae99c9fa
[INFO] testing jono94/rust-ethereum against 1.98.0-beta.8+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjono94%2Frust-ethereum" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jono94/rust-ethereum
[INFO] finished tweaking git repo https://github.com/jono94/rust-ethereum
[INFO] tweaked toml for git repo https://github.com/jono94/rust-ethereum written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jono94/rust-ethereum on toolchain 1.98.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jono94/rust-ethereum 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" "+1.98.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded textwrap v0.15.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59
[INFO] running `Command { std: "docker" "start" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling clap v3.1.8
[INFO] [stderr]    Compiling ethereum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `u256` should have an upper camel case name
[INFO] [stdout]  --> src/execution/types.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct u256 {
[INFO] [stdout]   |            ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `U256`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ROMOutOfBoundsError`
[INFO] [stdout]   --> src/main.rs:11:63
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::execution::program_context::{ ProgramContext, Rom, ROMOutOfBoundsError };
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/execution/program_context.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout]  96 | /         loop {
[INFO] [stdout]  97 | |             let mut line: String = String::new();
[INFO] [stdout]  98 | |             let opcode = &self.next_byte()?;
[INFO] [stdout]  99 | |             if let Some(instruction) = &Instructions.get(&opcode) {
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |             println!("{}", line);
[INFO] [stdout] 110 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 111 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/execution/instructions.rs:436:9
[INFO] [stdout]     |
[INFO] [stdout] 436 |     let mut data: u256 = u256::zero();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_data`
[INFO] [stdout]    --> src/execution/instructions.rs:438:14
[INFO] [stdout]     |
[INFO] [stdout] 438 |          let byte_data: u256 = u256::from_u8(program_context.rom.next_byte()?);
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_byte_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `overflow`
[INFO] [stdout]   --> src/execution/types.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let (upper, overflow) = u128::overflowing_add(self.upper, intermediate_upper);
[INFO] [stdout]    |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_overflow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut rom = load_rom_from_file(filename);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stack_items_removed` and `stack_items_added` are never read
[INFO] [stdout]    --> src/execution/instructions.rs:329:9
[INFO] [stdout]     |
[INFO] [stdout] 326 | pub struct Instruction {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 329 |     pub stack_items_removed: u8, // delta
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 330 |     pub stack_items_added: u8, // alpha
[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 `lt` is never used
[INFO] [stdout]    --> src/execution/instructions.rs:410:4
[INFO] [stdout]     |
[INFO] [stdout] 410 | fn lt(_opcode: u8, program_context: &mut ProgramContext) -> Result<(), ProgramError> {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gt` is never used
[INFO] [stdout]    --> src/execution/instructions.rs:421:4
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn gt(_opcode: u8, program_context: &mut ProgramContext) -> Result<(), ProgramError> {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `memory` and `storage` are never read
[INFO] [stdout]   --> src/execution/program_context.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct ProgramContext {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub memory: Memory,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 24 |     pub storage: Storage,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode_hex` is never used
[INFO] [stdout]   --> src/execution/program_context.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn encode_hex(bytes: &[u8]) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/execution/program_context.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 74 | impl Rom {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 75 |     pub fn new(rom: Vec<u8>) -> Rom {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `memory` is never read
[INFO] [stdout]    --> src/execution/program_context.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Memory {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 147 |     memory: Vec<u8>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `storage` is never read
[INFO] [stdout]    --> src/execution/program_context.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Storage {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 158 |     storage: Vec<u128>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u128` is never used
[INFO] [stdout]   --> src/execution/types.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl u256 {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn from_u128(lower: u128) -> u256 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |                         instruction.execute(&mut program_context);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |                         let _ = instruction.execute(&mut program_context);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `Instructions` should have an upper case name
[INFO] [stdout]    --> src/execution/instructions.rs:167:20
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub static ref Instructions: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stdout]     |                    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 167 -     pub static ref Instructions: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stdout] 167 +     pub static ref INSTRUCTIONS: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 18.52s
[INFO] running `Command { std: "docker" "inspect" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling ethereum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `u256` should have an upper camel case name
[INFO] [stdout]  --> src/execution/types.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct u256 {
[INFO] [stdout]   |            ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `U256`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ROMOutOfBoundsError`
[INFO] [stdout]   --> src/main.rs:11:63
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::execution::program_context::{ ProgramContext, Rom, ROMOutOfBoundsError };
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/execution/program_context.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout]  96 | /         loop {
[INFO] [stdout]  97 | |             let mut line: String = String::new();
[INFO] [stdout]  98 | |             let opcode = &self.next_byte()?;
[INFO] [stdout]  99 | |             if let Some(instruction) = &Instructions.get(&opcode) {
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |             println!("{}", line);
[INFO] [stdout] 110 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 111 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/execution/instructions.rs:436:9
[INFO] [stdout]     |
[INFO] [stdout] 436 |     let mut data: u256 = u256::zero();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_data`
[INFO] [stdout]    --> src/execution/instructions.rs:438:14
[INFO] [stdout]     |
[INFO] [stdout] 438 |          let byte_data: u256 = u256::from_u8(program_context.rom.next_byte()?);
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_byte_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `overflow`
[INFO] [stdout]   --> src/execution/types.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let (upper, overflow) = u128::overflowing_add(self.upper, intermediate_upper);
[INFO] [stdout]    |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_overflow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut rom = load_rom_from_file(filename);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stack_items_removed` and `stack_items_added` are never read
[INFO] [stdout]    --> src/execution/instructions.rs:329:9
[INFO] [stdout]     |
[INFO] [stdout] 326 | pub struct Instruction {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 329 |     pub stack_items_removed: u8, // delta
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 330 |     pub stack_items_added: u8, // alpha
[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 `lt` is never used
[INFO] [stdout]    --> src/execution/instructions.rs:410:4
[INFO] [stdout]     |
[INFO] [stdout] 410 | fn lt(_opcode: u8, program_context: &mut ProgramContext) -> Result<(), ProgramError> {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gt` is never used
[INFO] [stdout]    --> src/execution/instructions.rs:421:4
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn gt(_opcode: u8, program_context: &mut ProgramContext) -> Result<(), ProgramError> {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `memory` and `storage` are never read
[INFO] [stdout]   --> src/execution/program_context.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct ProgramContext {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub memory: Memory,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 24 |     pub storage: Storage,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode_hex` is never used
[INFO] [stdout]   --> src/execution/program_context.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn encode_hex(bytes: &[u8]) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/execution/program_context.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 74 | impl Rom {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 75 |     pub fn new(rom: Vec<u8>) -> Rom {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `memory` is never read
[INFO] [stdout]    --> src/execution/program_context.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Memory {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 147 |     memory: Vec<u8>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `storage` is never read
[INFO] [stdout]    --> src/execution/program_context.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Storage {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 158 |     storage: Vec<u128>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u128` is never used
[INFO] [stdout]   --> src/execution/types.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl u256 {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn from_u128(lower: u128) -> u256 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |                         instruction.execute(&mut program_context);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |                         let _ = instruction.execute(&mut program_context);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `Instructions` should have an upper case name
[INFO] [stdout]    --> src/execution/instructions.rs:167:20
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub static ref Instructions: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stdout]     |                    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 167 -     pub static ref Instructions: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stdout] 167 +     pub static ref INSTRUCTIONS: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test execution::types::tests::rem ... ok
[INFO] [stdout] test execution::types::tests::sub ... ok
[INFO] [stdout] test execution::types::tests::mul ... ok
[INFO] [stdout] test execution::types::tests::add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] warning: type `u256` should have an upper camel case name
[INFO] [stderr]  --> src/execution/types.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct u256 {
[INFO] [stderr]   |            ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `U256`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ROMOutOfBoundsError`
[INFO] [stderr]   --> src/main.rs:11:63
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::execution::program_context::{ ProgramContext, Rom, ROMOutOfBoundsError };
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/execution/program_context.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr]  96 | /         loop {
[INFO] [stderr]  97 | |             let mut line: String = String::new();
[INFO] [stderr]  98 | |             let opcode = &self.next_byte()?;
[INFO] [stderr]  99 | |             if let Some(instruction) = &Instructions.get(&opcode) {
[INFO] [stderr] ...   |
[INFO] [stderr] 109 | |             println!("{}", line);
[INFO] [stderr] 110 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 111 |           Ok(())
[INFO] [stderr]     |           ^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/execution/instructions.rs:436:9
[INFO] [stderr]     |
[INFO] [stderr] 436 |     let mut data: u256 = u256::zero();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `byte_data`
[INFO] [stderr]    --> src/execution/instructions.rs:438:14
[INFO] [stderr]     |
[INFO] [stderr] 438 |          let byte_data: u256 = u256::from_u8(program_context.rom.next_byte()?);
[INFO] [stderr]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_byte_data`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `overflow`
[INFO] [stderr]   --> src/execution/types.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let (upper, overflow) = u128::overflowing_add(self.upper, intermediate_upper);
[INFO] [stderr]    |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_overflow`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let mut rom = load_rom_from_file(filename);
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `stack_items_removed` and `stack_items_added` are never read
[INFO] [stderr]    --> src/execution/instructions.rs:329:9
[INFO] [stderr]     |
[INFO] [stderr] 326 | pub struct Instruction {
[INFO] [stderr]     |            ----------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 329 |     pub stack_items_removed: u8, // delta
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 330 |     pub stack_items_added: u8, // alpha
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `lt` is never used
[INFO] [stderr]    --> src/execution/instructions.rs:410:4
[INFO] [stderr]     |
[INFO] [stderr] 410 | fn lt(_opcode: u8, program_context: &mut ProgramContext) -> Result<(), ProgramError> {
[INFO] [stderr]     |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gt` is never used
[INFO] [stderr]    --> src/execution/instructions.rs:421:4
[INFO] [stderr]     |
[INFO] [stderr] 421 | fn gt(_opcode: u8, program_context: &mut ProgramContext) -> Result<(), ProgramError> {
[INFO] [stderr]     |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `memory` and `storage` are never read
[INFO] [stderr]   --> src/execution/program_context.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct ProgramContext {
[INFO] [stderr]    |            -------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 23 |     pub memory: Memory,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 24 |     pub storage: Storage,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `encode_hex` is never used
[INFO] [stderr]   --> src/execution/program_context.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn encode_hex(bytes: &[u8]) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/execution/program_context.rs:75:12
[INFO] [stderr]    |
[INFO] [stderr] 74 | impl Rom {
[INFO] [stderr]    | -------- associated function in this implementation
[INFO] [stderr] 75 |     pub fn new(rom: Vec<u8>) -> Rom {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `memory` is never read
[INFO] [stderr]    --> src/execution/program_context.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 146 | pub struct Memory {
[INFO] [stderr]     |            ------ field in this struct
[INFO] [stderr] 147 |     memory: Vec<u8>,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `storage` is never read
[INFO] [stderr]    --> src/execution/program_context.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 157 | pub struct Storage {
[INFO] [stderr]     |            ------- field in this struct
[INFO] [stderr] 158 |     storage: Vec<u128>,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_u128` is never used
[INFO] [stderr]   --> src/execution/types.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl u256 {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn from_u128(lower: u128) -> u256 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 |                         instruction.execute(&mut program_context);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 48 |                         let _ = instruction.execute(&mut program_context);
[INFO] [stderr]    |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `Instructions` should have an upper case name
[INFO] [stderr]    --> src/execution/instructions.rs:167:20
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub static ref Instructions: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stderr]     |                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] help: convert the identifier to upper case
[INFO] [stderr]     |
[INFO] [stderr] 167 -     pub static ref Instructions: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stderr] 167 +     pub static ref INSTRUCTIONS: HashMap<u8, Instruction> = HashMap::from([
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `ethereum` (bin "ethereum" test) generated 18 warnings (run `cargo fix --bin "ethereum" -p ethereum --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/ethereum-99ebdec88ad21a24)
[INFO] running `Command { std: "docker" "inspect" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59", kill_on_drop: false }`
[INFO] [stdout] 256485422dc8effd1fbd72438f1bac626c16b7d96244bd94b9c705280f429b59
