[INFO] cloning repository https://github.com/bean1310/hello_kvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bean1310/hello_kvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbean1310%2Fhello_kvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbean1310%2Fhello_kvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb9767b215ca06f35f8cbb557b02506995c4f2f3
[INFO] testing bean1310/hello_kvm against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbean1310%2Fhello_kvm" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bean1310/hello_kvm on toolchain 1ddedbaa5919b7b3e70d984660e21e844c615c97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bean1310/hello_kvm
[INFO] finished tweaking git repo https://github.com/bean1310/hello_kvm
[INFO] tweaked toml for git repo https://github.com/bean1310/hello_kvm written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bean1310/hello_kvm 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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing bean1310/hello_kvm against try#33f1d8bb92813a1bfc23c093c9f443ab09290307 for pr-128400
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbean1310%2Fhello_kvm" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bean1310/hello_kvm on toolchain 33f1d8bb92813a1bfc23c093c9f443ab09290307
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bean1310/hello_kvm
[INFO] finished tweaking git repo https://github.com/bean1310/hello_kvm
[INFO] tweaked toml for git repo https://github.com/bean1310/hello_kvm written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bean1310/hello_kvm 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" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d30c874cf7253b041d59dbd55ab16290d284944371f53e1409a2fe594455387f
[INFO] running `Command { std: "docker" "start" "-a" "d30c874cf7253b041d59dbd55ab16290d284944371f53e1409a2fe594455387f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d30c874cf7253b041d59dbd55ab16290d284944371f53e1409a2fe594455387f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30c874cf7253b041d59dbd55ab16290d284944371f53e1409a2fe594455387f", kill_on_drop: false }`
[INFO] [stdout] d30c874cf7253b041d59dbd55ab16290d284944371f53e1409a2fe594455387f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab00c658c7443b777c56ea5bd6d051d655ee6e65cb79564e0028ec06e5d8ae6c
[INFO] running `Command { std: "docker" "start" "-a" "ab00c658c7443b777c56ea5bd6d051d655ee6e65cb79564e0028ec06e5d8ae6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling nix v0.27.1
[INFO] [stderr]    Compiling hello_kvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AsFd` and `default`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{default, error::Error, fs::File, io::{stdout, Write}, os::fd::{AsFd, AsRawFd}};
[INFO] [stdout]   |           ^^^^^^^                                                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `KVM_API` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:144:6
[INFO] [stdout]     |
[INFO] [stdout] 144 | enum KVM_API {
[INFO] [stdout]     |      ^^^^^^^ help: convert the identifier to upper camel case: `KvmApi`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_CREATE_VM` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     KVM_CREATE_VM  = _IO!(KVMIO, 0x01),
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmCreateVm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_CREATE_VCPU` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     KVM_CREATE_VCPU = _IO!(KVMIO, 0x41),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmCreateVcpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_VCPU_MMAP_SIZE` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 147 |     KVM_GET_VCPU_MMAP_SIZE = _IO!(KVMIO, 0x04),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetVcpuMmapSize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_SET_USER_MEMORY_REGION` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     KVM_SET_USER_MEMORY_REGION = _IOW!(KVMIO, 0x46, kvm_userspace_memory_region),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetUserMemoryRegion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_RUN` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     KVM_RUN = _IO!(KVMIO, 0x80),
[INFO] [stdout]     |     ^^^^^^^ help: convert the identifier to upper camel case: `KvmRun`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_REGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 |     KVM_GET_REGS = _IOR!(KVMIO,  0x81, kvm_regs),
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetRegs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_SET_REGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     KVM_SET_REGS = _IOW!(KVMIO,  0x82, kvm_regs),
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetRegs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_SREGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     KVM_GET_SREGS = _IOR!(KVMIO, 0x83, kvm_sregs),
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetSregs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_SET_SREGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     KVM_SET_SREGS = _IOW!(KVMIO, 0x84, kvm_sregs),
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetSregs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:307:24
[INFO] [stdout]     |
[INFO] [stdout] 307 |                     if (vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT) {
[INFO] [stdout]     |                        ^                                                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 307 -                     if (vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT) {
[INFO] [stdout] 307 +                     if vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default`
[INFO] [stdout]    --> src/main.rs:398:13
[INFO] [stdout]     |
[INFO] [stdout] 398 |             default => {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_REGS` is never constructed
[INFO] [stdout]    --> src/main.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 144 | enum KVM_API {
[INFO] [stdout]     |      ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 150 |     KVM_GET_REGS = _IOR!(KVMIO,  0x81, kvm_regs),
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `KVM_EXIT_IO_IN` is never used
[INFO] [stdout]    --> src/main.rs:156:7
[INFO] [stdout]     |
[INFO] [stdout] 156 | const KVM_EXIT_IO_IN: u8 = 0;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "ab00c658c7443b777c56ea5bd6d051d655ee6e65cb79564e0028ec06e5d8ae6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab00c658c7443b777c56ea5bd6d051d655ee6e65cb79564e0028ec06e5d8ae6c", kill_on_drop: false }`
[INFO] [stdout] ab00c658c7443b777c56ea5bd6d051d655ee6e65cb79564e0028ec06e5d8ae6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f13cb6b21c8f8ed8a6640fa6eb3f647ea1a7da64df52da7118f998a5e126113a
[INFO] running `Command { std: "docker" "start" "-a" "f13cb6b21c8f8ed8a6640fa6eb3f647ea1a7da64df52da7118f998a5e126113a", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_kvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AsFd` and `default`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{default, error::Error, fs::File, io::{stdout, Write}, os::fd::{AsFd, AsRawFd}};
[INFO] [stdout]   |           ^^^^^^^                                                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `KVM_API` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:144:6
[INFO] [stdout]     |
[INFO] [stdout] 144 | enum KVM_API {
[INFO] [stdout]     |      ^^^^^^^ help: convert the identifier to upper camel case: `KvmApi`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_CREATE_VM` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     KVM_CREATE_VM  = _IO!(KVMIO, 0x01),
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmCreateVm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_CREATE_VCPU` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     KVM_CREATE_VCPU = _IO!(KVMIO, 0x41),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmCreateVcpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_VCPU_MMAP_SIZE` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 147 |     KVM_GET_VCPU_MMAP_SIZE = _IO!(KVMIO, 0x04),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetVcpuMmapSize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_SET_USER_MEMORY_REGION` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     KVM_SET_USER_MEMORY_REGION = _IOW!(KVMIO, 0x46, kvm_userspace_memory_region),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetUserMemoryRegion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_RUN` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     KVM_RUN = _IO!(KVMIO, 0x80),
[INFO] [stdout]     |     ^^^^^^^ help: convert the identifier to upper camel case: `KvmRun`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_REGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 |     KVM_GET_REGS = _IOR!(KVMIO,  0x81, kvm_regs),
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetRegs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_SET_REGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     KVM_SET_REGS = _IOW!(KVMIO,  0x82, kvm_regs),
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetRegs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_SREGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     KVM_GET_SREGS = _IOR!(KVMIO, 0x83, kvm_sregs),
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetSregs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_SET_SREGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     KVM_SET_SREGS = _IOW!(KVMIO, 0x84, kvm_sregs),
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetSregs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:307:24
[INFO] [stdout]     |
[INFO] [stdout] 307 |                     if (vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT) {
[INFO] [stdout]     |                        ^                                                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 307 -                     if (vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT) {
[INFO] [stdout] 307 +                     if vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default`
[INFO] [stdout]    --> src/main.rs:398:13
[INFO] [stdout]     |
[INFO] [stdout] 398 |             default => {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `KVM_GET_REGS` is never constructed
[INFO] [stdout]    --> src/main.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 144 | enum KVM_API {
[INFO] [stdout]     |      ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 150 |     KVM_GET_REGS = _IOR!(KVMIO,  0x81, kvm_regs),
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `KVM_EXIT_IO_IN` is never used
[INFO] [stdout]    --> src/main.rs:156:7
[INFO] [stdout]     |
[INFO] [stdout] 156 | const KVM_EXIT_IO_IN: u8 = 0;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "f13cb6b21c8f8ed8a6640fa6eb3f647ea1a7da64df52da7118f998a5e126113a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13cb6b21c8f8ed8a6640fa6eb3f647ea1a7da64df52da7118f998a5e126113a", kill_on_drop: false }`
[INFO] [stdout] f13cb6b21c8f8ed8a6640fa6eb3f647ea1a7da64df52da7118f998a5e126113a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1d0ed2fb931c1f59b44539174670733f142f1feb1729a8366660b75c6c70aef9
[INFO] running `Command { std: "docker" "start" "-a" "1d0ed2fb931c1f59b44539174670733f142f1feb1729a8366660b75c6c70aef9", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `AsFd` and `default`
[INFO] [stderr]  --> src/main.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{default, error::Error, fs::File, io::{stdout, Write}, os::fd::{AsFd, AsRawFd}};
[INFO] [stderr]   |           ^^^^^^^                                                        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `KVM_API` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:144:6
[INFO] [stderr]     |
[INFO] [stderr] 144 | enum KVM_API {
[INFO] [stderr]     |      ^^^^^^^ help: convert the identifier to upper camel case: `KvmApi`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_CREATE_VM` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:145:5
[INFO] [stderr]     |
[INFO] [stderr] 145 |     KVM_CREATE_VM  = _IO!(KVMIO, 0x01),
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmCreateVm`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_CREATE_VCPU` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     KVM_CREATE_VCPU = _IO!(KVMIO, 0x41),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmCreateVcpu`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_GET_VCPU_MMAP_SIZE` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     KVM_GET_VCPU_MMAP_SIZE = _IO!(KVMIO, 0x04),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetVcpuMmapSize`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_SET_USER_MEMORY_REGION` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     KVM_SET_USER_MEMORY_REGION = _IOW!(KVMIO, 0x46, kvm_userspace_memory_region),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetUserMemoryRegion`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_RUN` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     KVM_RUN = _IO!(KVMIO, 0x80),
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to upper camel case: `KvmRun`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_GET_REGS` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     KVM_GET_REGS = _IOR!(KVMIO,  0x81, kvm_regs),
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetRegs`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_SET_REGS` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     KVM_SET_REGS = _IOW!(KVMIO,  0x82, kvm_regs),
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetRegs`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_GET_SREGS` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     KVM_GET_SREGS = _IOR!(KVMIO, 0x83, kvm_sregs),
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmGetSregs`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_SET_SREGS` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:153:5
[INFO] [stderr]     |
[INFO] [stderr] 153 |     KVM_SET_SREGS = _IOW!(KVMIO, 0x84, kvm_sregs),
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `KvmSetSregs`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:307:24
[INFO] [stderr]     |
[INFO] [stderr] 307 |                     if (vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT) {
[INFO] [stderr]     |                        ^                                                                                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 307 -                     if (vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT) {
[INFO] [stderr] 307 +                     if vcpu_run.kvm_exit.io.port == 0x01 && vcpu_run.kvm_exit.io.direction == KVM_EXIT_IO_OUT {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `default`
[INFO] [stderr]    --> src/main.rs:398:13
[INFO] [stderr]     |
[INFO] [stderr] 398 |             default => {
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `KVM_GET_REGS` is never constructed
[INFO] [stderr]    --> src/main.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 144 | enum KVM_API {
[INFO] [stderr]     |      ------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 150 |     KVM_GET_REGS = _IOR!(KVMIO,  0x81, kvm_regs),
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `KVM_EXIT_IO_IN` is never used
[INFO] [stderr]    --> src/main.rs:156:7
[INFO] [stderr]     |
[INFO] [stderr] 156 | const KVM_EXIT_IO_IN: u8 = 0;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hello_kvm` (bin "hello_kvm" test) generated 15 warnings (run `cargo fix --bin "hello_kvm" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_kvm-926a3f36b559fd09)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1d0ed2fb931c1f59b44539174670733f142f1feb1729a8366660b75c6c70aef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d0ed2fb931c1f59b44539174670733f142f1feb1729a8366660b75c6c70aef9", kill_on_drop: false }`
[INFO] [stdout] 1d0ed2fb931c1f59b44539174670733f142f1feb1729a8366660b75c6c70aef9