[INFO] cloning repository https://github.com/junps/x86emulator_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/junps/x86emulator_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunps%2Fx86emulator_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunps%2Fx86emulator_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7eed32aa08d42a1c33954a2091ce150791857a44
[INFO] checking junps/x86emulator_in_rust against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunps%2Fx86emulator_in_rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/junps/x86emulator_in_rust
[INFO] finished tweaking git repo https://github.com/junps/x86emulator_in_rust
[INFO] tweaked toml for git repo https://github.com/junps/x86emulator_in_rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/junps/x86emulator_in_rust on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/junps/x86emulator_in_rust 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec4dcb3982ac27284f0e06868d17ef1e6a179ee47d2f1a53dd76a2725f75e5f7
[INFO] running `Command { std: "docker" "start" "-a" "ec4dcb3982ac27284f0e06868d17ef1e6a179ee47d2f1a53dd76a2725f75e5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec4dcb3982ac27284f0e06868d17ef1e6a179ee47d2f1a53dd76a2725f75e5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4dcb3982ac27284f0e06868d17ef1e6a179ee47d2f1a53dd76a2725f75e5f7", kill_on_drop: false }`
[INFO] [stdout] ec4dcb3982ac27284f0e06868d17ef1e6a179ee47d2f1a53dd76a2725f75e5f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 384862c1da236106bea4c9c9f5f21069ad8a11db392c30eb3d9883fabad5d962
[INFO] running `Command { std: "docker" "start" "-a" "384862c1da236106bea4c9c9f5f21069ad8a11db392c30eb3d9883fabad5d962", kill_on_drop: false }`
[INFO] [stderr]     Checking x86emulator_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/modrm.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `modrm::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use modrm::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/modrm.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `modrm::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use modrm::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/emulator.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Register {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout]  6 |     EAX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  7 |     ECX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  8 |     EDX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     EBX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     ESP,
[INFO] [stdout] 11 |     EBP,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     ESI,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     EDI,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Register` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `eflags` is never read
[INFO] [stdout]   --> src/emulator.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Emulator {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 20 |     pub registers: [u32; Register::RegistersCount as usize],
[INFO] [stdout] 21 |     pub eflags: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Emulator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/emulator.rs:71:33
[INFO] [stdout]    |
[INFO] [stdout] 71 |             self.get_register32(modrm.rm.try_into().unwrap())
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/emulator.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 |         self.get_register32(modrm.reg_index.try_into().unwrap())
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/emulator.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |         self.set_register32(modrm.reg_index.try_into().unwrap(), value);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> src/emulator.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         self.memory[address].try_into().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/emulator.rs:108:45
[INFO] [stdout]     |
[INFO] [stdout] 108 |             self.set_memory8(address + idx, (value >> (idx * 8)).try_into().unwrap());
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:120:40
[INFO] [stdout]     |
[INFO] [stdout] 120 |             return self.get_register32(modrm.rm.try_into().unwrap());
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:126:41
[INFO] [stdout]     |
[INFO] [stdout] 126 |             return (self.get_register32(modrm.rm.try_into().unwrap()) as i32 + modrm.disp8 as i32)
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:133:40
[INFO] [stdout]     |
[INFO] [stdout] 133 |             return self.get_register32(modrm.rm.try_into().unwrap()) + modrm.disp32;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:141:33
[INFO] [stdout]     |
[INFO] [stdout] 141 |             self.set_register32(modrm.rm.try_into().unwrap(), value);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/emulator.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Register {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout]  6 |     EAX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  7 |     ECX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  8 |     EDX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     EBX,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     ESP,
[INFO] [stdout] 11 |     EBP,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     ESI,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     EDI,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Register` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `eflags` is never read
[INFO] [stdout]   --> src/emulator.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Emulator {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 20 |     pub registers: [u32; Register::RegistersCount as usize],
[INFO] [stdout] 21 |     pub eflags: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Emulator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/emulator.rs:71:33
[INFO] [stdout]    |
[INFO] [stdout] 71 |             self.get_register32(modrm.rm.try_into().unwrap())
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/emulator.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 |         self.get_register32(modrm.reg_index.try_into().unwrap())
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/emulator.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |         self.set_register32(modrm.reg_index.try_into().unwrap(), value);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]   --> src/emulator.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         self.memory[address].try_into().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/emulator.rs:108:45
[INFO] [stdout]     |
[INFO] [stdout] 108 |             self.set_memory8(address + idx, (value >> (idx * 8)).try_into().unwrap());
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:120:40
[INFO] [stdout]     |
[INFO] [stdout] 120 |             return self.get_register32(modrm.rm.try_into().unwrap());
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:126:41
[INFO] [stdout]     |
[INFO] [stdout] 126 |             return (self.get_register32(modrm.rm.try_into().unwrap()) as i32 + modrm.disp8 as i32)
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:133:40
[INFO] [stdout]     |
[INFO] [stdout] 133 |             return self.get_register32(modrm.rm.try_into().unwrap()) + modrm.disp32;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/emulator.rs:141:33
[INFO] [stdout]     |
[INFO] [stdout] 141 |             self.set_register32(modrm.rm.try_into().unwrap(), value);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86emulator_in_rust` (bin "x86emulator_in_rust") due to 9 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `x86emulator_in_rust` (bin "x86emulator_in_rust" test) due to 9 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "384862c1da236106bea4c9c9f5f21069ad8a11db392c30eb3d9883fabad5d962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384862c1da236106bea4c9c9f5f21069ad8a11db392c30eb3d9883fabad5d962", kill_on_drop: false }`
[INFO] [stdout] 384862c1da236106bea4c9c9f5f21069ad8a11db392c30eb3d9883fabad5d962
