[INFO] cloning repository https://github.com/kam1tsur3/x86-tiny-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kam1tsur3/x86-tiny-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkam1tsur3%2Fx86-tiny-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkam1tsur3%2Fx86-tiny-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc128a900c5b7ddaf81bd0f5fb00ba48cd1b6c95
[INFO] checking kam1tsur3/x86-tiny-emulator against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkam1tsur3%2Fx86-tiny-emulator" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kam1tsur3/x86-tiny-emulator on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kam1tsur3/x86-tiny-emulator
[INFO] finished tweaking git repo https://github.com/kam1tsur3/x86-tiny-emulator
[INFO] tweaked toml for git repo https://github.com/kam1tsur3/x86-tiny-emulator written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/kam1tsur3/x86-tiny-emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cd16b84643088442f1bb83f3117702a594acadc93fb3a870045313ac945071b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2cd16b84643088442f1bb83f3117702a594acadc93fb3a870045313ac945071b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cd16b84643088442f1bb83f3117702a594acadc93fb3a870045313ac945071b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cd16b84643088442f1bb83f3117702a594acadc93fb3a870045313ac945071b", kill_on_drop: false }`
[INFO] [stdout] 2cd16b84643088442f1bb83f3117702a594acadc93fb3a870045313ac945071b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9baedc7ffbd03672eb6f27981e352f5d843dccfad2afdbb61ca5aef6b92c0299
[INFO] running `Command { std: "docker" "start" "-a" "9baedc7ffbd03672eb6f27981e352f5d843dccfad2afdbb61ca5aef6b92c0299", kill_on_drop: false }`
[INFO] [stderr]     Checking general_registers v0.1.0 (/opt/rustwide/workdir/general_registers)
[INFO] [stderr]     Checking x86-tiny-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `GeneralRegisters`
[INFO] [stdout]  --> src/main.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 4 | use general_registers::{CARRY_INDEX, GeneralRegisters, OVERFLOW_INDEX, SIGN_INDEX, ZERO_INDEX};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:38:43
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut padding: Vec<u8> = vec![0;(MEMORY_SIZE-mem.len() - ADDRESS_LOAD)];
[INFO] [stdout]    |                                           ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 -         let mut padding: Vec<u8> = vec![0;(MEMORY_SIZE-mem.len() - ADDRESS_LOAD)];
[INFO] [stdout] 38 +         let mut padding: Vec<u8> = vec![0;MEMORY_SIZE-mem.len() - ADDRESS_LOAD];
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/main.rs:316:15
[INFO] [stdout]     |
[INFO] [stdout] 316 |         match (reg - 0xb8) {
[INFO] [stdout]     |               ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 316 -         match (reg - 0xb8) {
[INFO] [stdout] 316 +         match reg - 0xb8 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]    --> src/main.rs:531:5
[INFO] [stdout]     |
[INFO] [stdout] 531 |     while true {
[INFO] [stdout]     |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GeneralRegisters`
[INFO] [stdout]  --> src/main.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 4 | use general_registers::{CARRY_INDEX, GeneralRegisters, OVERFLOW_INDEX, SIGN_INDEX, ZERO_INDEX};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:38:43
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut padding: Vec<u8> = vec![0;(MEMORY_SIZE-mem.len() - ADDRESS_LOAD)];
[INFO] [stdout]    |                                           ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 -         let mut padding: Vec<u8> = vec![0;(MEMORY_SIZE-mem.len() - ADDRESS_LOAD)];
[INFO] [stdout] 38 +         let mut padding: Vec<u8> = vec![0;MEMORY_SIZE-mem.len() - ADDRESS_LOAD];
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/main.rs:316:15
[INFO] [stdout]     |
[INFO] [stdout] 316 |         match (reg - 0xb8) {
[INFO] [stdout]     |               ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 316 -         match (reg - 0xb8) {
[INFO] [stdout] 316 +         match reg - 0xb8 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]    --> src/main.rs:531:5
[INFO] [stdout]     |
[INFO] [stdout] 531 |     while true {
[INFO] [stdout]     |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut regs = general_registers::GeneralRegisters::new();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let mut modrm = self.parse_modrm();
[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:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut modrm = self.parse_modrm();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_mem_i8`
[INFO] [stdout]    --> src/main.rs:478:8
[INFO] [stdout]     |
[INFO] [stdout] 478 |     fn read_mem_i8(&self, offset:u32) -> i8 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_mem_i32`
[INFO] [stdout]    --> src/main.rs:490:8
[INFO] [stdout]     |
[INFO] [stdout] 490 |     fn read_mem_i32(&self, offset:u32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_mem_u8`
[INFO] [stdout]    --> src/main.rs:494:8
[INFO] [stdout]     |
[INFO] [stdout] 494 |     fn write_mem_u8(&mut self, offset:u32, value: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_mem_i8`
[INFO] [stdout]    --> src/main.rs:498:8
[INFO] [stdout]     |
[INFO] [stdout] 498 |     fn write_mem_i8(&mut self, offset:u32, value:i8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_mem_i32`
[INFO] [stdout]    --> src/main.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 |     fn write_mem_i32(&mut self, offset: u32, value: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut regs = general_registers::GeneralRegisters::new();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let mut modrm = self.parse_modrm();
[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:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut modrm = self.parse_modrm();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_mem_i8`
[INFO] [stdout]    --> src/main.rs:478:8
[INFO] [stdout]     |
[INFO] [stdout] 478 |     fn read_mem_i8(&self, offset:u32) -> i8 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_mem_i32`
[INFO] [stdout]    --> src/main.rs:490:8
[INFO] [stdout]     |
[INFO] [stdout] 490 |     fn read_mem_i32(&self, offset:u32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_mem_u8`
[INFO] [stdout]    --> src/main.rs:494:8
[INFO] [stdout]     |
[INFO] [stdout] 494 |     fn write_mem_u8(&mut self, offset:u32, value: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_mem_i8`
[INFO] [stdout]    --> src/main.rs:498:8
[INFO] [stdout]     |
[INFO] [stdout] 498 |     fn write_mem_i8(&mut self, offset:u32, value:i8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_mem_i32`
[INFO] [stdout]    --> src/main.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 |     fn write_mem_i32(&mut self, offset: u32, value: i32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "9baedc7ffbd03672eb6f27981e352f5d843dccfad2afdbb61ca5aef6b92c0299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9baedc7ffbd03672eb6f27981e352f5d843dccfad2afdbb61ca5aef6b92c0299", kill_on_drop: false }`
[INFO] [stdout] 9baedc7ffbd03672eb6f27981e352f5d843dccfad2afdbb61ca5aef6b92c0299