[INFO] cloning repository https://github.com/mdu02/ferric-gb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdu02/ferric-gb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdu02%2Fferric-gb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdu02%2Fferric-gb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb6b741cde6d32ee8dc848a54502b1a6b6321ca2
[INFO] testing mdu02/ferric-gb against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdu02%2Fferric-gb" "/workspace/builds/worker-67/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-67/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mdu02/ferric-gb on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mdu02/ferric-gb
[INFO] finished tweaking git repo https://github.com/mdu02/ferric-gb
[INFO] tweaked toml for git repo https://github.com/mdu02/ferric-gb written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate git repo https://github.com/mdu02/ferric-gb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9226bbb0bec4a0e5fb4bdeb426be920e562a026c3b4df6c36de970d50c85e9b6
[INFO] running `Command { std: "docker" "start" "-a" "9226bbb0bec4a0e5fb4bdeb426be920e562a026c3b4df6c36de970d50c85e9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9226bbb0bec4a0e5fb4bdeb426be920e562a026c3b4df6c36de970d50c85e9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9226bbb0bec4a0e5fb4bdeb426be920e562a026c3b4df6c36de970d50c85e9b6", kill_on_drop: false }`
[INFO] [stdout] 9226bbb0bec4a0e5fb4bdeb426be920e562a026c3b4df6c36de970d50c85e9b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a755880c2ae58f4b197377938dcc4009eed178115259aed7b9e3f3777216880d
[INFO] running `Command { std: "docker" "start" "-a" "a755880c2ae58f4b197377938dcc4009eed178115259aed7b9e3f3777216880d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ferric-gb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::cpu::CPU`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::cpu::CPU;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |        let mut cpu = CPU{
[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/register.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut reg: Register = Register{value };
[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/ram.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut ram = RAM {memory: [0; 4096]};
[INFO] [stdout]   |             ----^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `WideReg`
[INFO] [stdout]  --> src/cpu.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum WideReg {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NarrowReg`
[INFO] [stdout]   --> src/cpu.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum NarrowReg {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Flag`
[INFO] [stdout]   --> src/cpu.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Flag {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CPU`
[INFO] [stdout]   --> src/cpu.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct CPU {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cpu.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new() -> CPU{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_narrow_reg`
[INFO] [stdout]   --> src/cpu.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn read_narrow_reg(&self, reg: NarrowReg) -> u8{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_wide_reg`
[INFO] [stdout]   --> src/cpu.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn read_wide_reg(&self, reg: WideReg) -> u16{
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_narrow_reg`
[INFO] [stdout]    --> src/cpu.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn write_narrow_reg(&mut self, reg: NarrowReg, val: u8){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_wide_reg`
[INFO] [stdout]    --> src/cpu.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn write_wide_reg(&mut self, reg: WideReg, val:u16){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_flag`
[INFO] [stdout]    --> src/cpu.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn get_flag(&self, f: Flag) -> bool{
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_flag`
[INFO] [stdout]    --> src/cpu.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn set_flag(&mut self, f : Flag, val: bool){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Register`
[INFO] [stdout]  --> src/register.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Register {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/register.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new(value: u16) -> Register {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_reg`
[INFO] [stdout]   --> src/register.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn read_reg(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_reg`
[INFO] [stdout]   --> src/register.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn write_reg(&mut self, val: u16) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_top`
[INFO] [stdout]   --> src/register.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn read_top(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_top`
[INFO] [stdout]   --> src/register.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn write_top(&mut self, val: u8) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_bottom`
[INFO] [stdout]   --> src/register.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn read_bottom(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_bottom`
[INFO] [stdout]   --> src/register.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn write_bottom(&mut self, val: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `RAM`
[INFO] [stdout]  --> src/ram.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RAM {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/ram.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new() -> RAM {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/ram.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn read_byte(&self, adr: u16) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_byte`
[INFO] [stdout]   --> src/ram.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn write_byte(&mut self, adr: u16, val: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "a755880c2ae58f4b197377938dcc4009eed178115259aed7b9e3f3777216880d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a755880c2ae58f4b197377938dcc4009eed178115259aed7b9e3f3777216880d", kill_on_drop: false }`
[INFO] [stdout] a755880c2ae58f4b197377938dcc4009eed178115259aed7b9e3f3777216880d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26b98210eca12c72f8f43a7095f46011c5675da4c4d2c0a6141c05ee32cb3b25
[INFO] running `Command { std: "docker" "start" "-a" "26b98210eca12c72f8f43a7095f46011c5675da4c4d2c0a6141c05ee32cb3b25", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ferric-gb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::cpu::CPU`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::cpu::CPU;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |        let mut cpu = CPU{
[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/register.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut reg: Register = Register{value };
[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/ram.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut ram = RAM {memory: [0; 4096]};
[INFO] [stdout]   |             ----^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `WideReg`
[INFO] [stdout]  --> src/cpu.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum WideReg {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `NarrowReg`
[INFO] [stdout]   --> src/cpu.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum NarrowReg {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bc`
[INFO] [stdout]   --> src/cpu.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     bc: Register,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `de`
[INFO] [stdout]   --> src/cpu.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     de: Register,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hl`
[INFO] [stdout]   --> src/cpu.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     hl: Register,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sp`
[INFO] [stdout]   --> src/cpu.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     sp: Register,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pc`
[INFO] [stdout]   --> src/cpu.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pc: Register
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_narrow_reg`
[INFO] [stdout]   --> src/cpu.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn read_narrow_reg(&self, reg: NarrowReg) -> u8{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_wide_reg`
[INFO] [stdout]   --> src/cpu.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn read_wide_reg(&self, reg: WideReg) -> u16{
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_narrow_reg`
[INFO] [stdout]    --> src/cpu.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn write_narrow_reg(&mut self, reg: NarrowReg, val: u8){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_wide_reg`
[INFO] [stdout]    --> src/cpu.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn write_wide_reg(&mut self, reg: WideReg, val:u16){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `RAM`
[INFO] [stdout]  --> src/ram.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RAM {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/ram.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new() -> RAM {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/ram.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn read_byte(&self, adr: u16) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_byte`
[INFO] [stdout]   --> src/ram.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn write_byte(&mut self, adr: u16, val: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "26b98210eca12c72f8f43a7095f46011c5675da4c4d2c0a6141c05ee32cb3b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b98210eca12c72f8f43a7095f46011c5675da4c4d2c0a6141c05ee32cb3b25", kill_on_drop: false }`
[INFO] [stdout] 26b98210eca12c72f8f43a7095f46011c5675da4c4d2c0a6141c05ee32cb3b25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bbe0a446cd7c057dd0a55205675b70ed74594fc28321a409898fa4e88ac9042c
[INFO] running `Command { std: "docker" "start" "-a" "bbe0a446cd7c057dd0a55205675b70ed74594fc28321a409898fa4e88ac9042c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `crate::cpu::CPU`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::cpu::CPU;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cpu.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |        let mut cpu = CPU{
[INFO] [stderr]    |            ----^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/register.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |         let mut reg: Register = Register{value };
[INFO] [stderr]   |             ----^^^
[INFO] [stderr]   |             |
[INFO] [stderr]   |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/ram.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |         let mut ram = RAM {memory: [0; 4096]};
[INFO] [stderr]   |             ----^^^
[INFO] [stderr]   |             |
[INFO] [stderr]   |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `WideReg`
[INFO] [stderr]  --> src/cpu.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum WideReg {
[INFO] [stderr]   |          ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `NarrowReg`
[INFO] [stderr]   --> src/cpu.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum NarrowReg {
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bc`
[INFO] [stderr]   --> src/cpu.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     bc: Register,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `de`
[INFO] [stderr]   --> src/cpu.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     de: Register,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `hl`
[INFO] [stderr]   --> src/cpu.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     hl: Register,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sp`
[INFO] [stderr]   --> src/cpu.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     sp: Register,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pc`
[INFO] [stderr]   --> src/cpu.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pc: Register
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `read_narrow_reg`
[INFO] [stderr]   --> src/cpu.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn read_narrow_reg(&self, reg: NarrowReg) -> u8{
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `read_wide_reg`
[INFO] [stderr]   --> src/cpu.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn read_wide_reg(&self, reg: WideReg) -> u16{
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `write_narrow_reg`
[INFO] [stderr]    --> src/cpu.rs:100:8
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn write_narrow_reg(&mut self, reg: NarrowReg, val: u8){
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `write_wide_reg`
[INFO] [stderr]    --> src/cpu.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn write_wide_reg(&mut self, reg: WideReg, val:u16){
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RAM`
[INFO] [stderr]  --> src/ram.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct RAM {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/ram.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new() -> RAM {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `read_byte`
[INFO] [stderr]   --> src/ram.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn read_byte(&self, adr: u16) -> u8 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `write_byte`
[INFO] [stderr]   --> src/ram.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn write_byte(&mut self, adr: u16, val: u8) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ferric_gb-4f7b89936362eb5f)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test register::tests::read_bottom ... ok
[INFO] [stdout] test register::tests::read_top ... ok
[INFO] [stdout] test register::tests::write_bottom ... ok
[INFO] [stdout] test register::tests::write_top ... ok
[INFO] [stdout] test register::tests::read_write ... ok
[INFO] [stdout] test cpu::tests::test_flags ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- cpu::tests::test_flags stdout ----
[INFO] [stdout] thread 'cpu::tests::test_flags' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `true`,
[INFO] [stdout]  right: `false`', src/cpu.rs:195:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x564aad07d0c0 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x564aad07d0c0 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x564aad07d0c0 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x564aad07d0c0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x564aad09f8bc - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x564aad079fe5 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x564aad07f22b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x564aad07f22b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x564aad07f22b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x564aad07ed3c - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x564aad07f8f4 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x564aad07f3d7 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x564aad07d5bc - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x564aad07f339 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x564aad02a641 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x564aad09e1d8 - core::panicking::assert_failed_inner::h33b45280069a80ed
[INFO] [stdout]   16:     0x564aad02bc9a - core::panicking::assert_failed::hd9d5f2eb601059aa
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:117:5
[INFO] [stdout]   17:     0x564aad02c1c5 - ferric_gb::cpu::tests::test_flags::hcccf41d4b089f67f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cpu.rs:195:9
[INFO] [stdout]   18:     0x564aad02c06a - ferric_gb::cpu::tests::test_flags::{{closure}}::h5bba8040f3c7bade
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cpu.rs:189:5
[INFO] [stdout]   19:     0x564aad02b9ee - core::ops::function::FnOnce::call_once::h4494deb391086bf0
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x564aad0545c3 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x564aad0545c3 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x564aad053080 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x564aad053080 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x564aad053080 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x564aad053080 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x564aad053080 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x564aad053080 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x564aad053080 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x564aad02c732 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x564aad02c732 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x564aad0302e8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x564aad0302e8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x564aad0302e8 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x564aad0302e8 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x564aad0302e8 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x564aad0302e8 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x564aad0302e8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x564aad0843b7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x564aad0843b7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x564aad0843b7 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7f01447f9609 - start_thread
[INFO] [stdout]   42:     0x7f01445cb293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     cpu::tests::test_flags
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin ferric-gb'
[INFO] running `Command { std: "docker" "inspect" "bbe0a446cd7c057dd0a55205675b70ed74594fc28321a409898fa4e88ac9042c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe0a446cd7c057dd0a55205675b70ed74594fc28321a409898fa4e88ac9042c", kill_on_drop: false }`
[INFO] [stdout] bbe0a446cd7c057dd0a55205675b70ed74594fc28321a409898fa4e88ac9042c
