[INFO] fetching crate x86test 0.0.5...
[INFO] checking x86test-0.0.5 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate x86test 0.0.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate x86test 0.0.5
[INFO] finished tweaking crates.io crate x86test 0.0.5
[INFO] tweaked toml for crates.io crate x86test 0.0.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate x86test 0.0.5 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding klogger v0.0.10 (available: v0.0.16)
[INFO] [stderr]       Adding x86 v0.47.0 (available: v0.52.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e4cd6d50f23c9e08a973fba70fe10ab1eba425986fb51871863256a732670a4
[INFO] running `Command { std: "docker" "start" "-a" "0e4cd6d50f23c9e08a973fba70fe10ab1eba425986fb51871863256a732670a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e4cd6d50f23c9e08a973fba70fe10ab1eba425986fb51871863256a732670a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e4cd6d50f23c9e08a973fba70fe10ab1eba425986fb51871863256a732670a4", kill_on_drop: false }`
[INFO] [stdout] 0e4cd6d50f23c9e08a973fba70fe10ab1eba425986fb51871863256a732670a4
[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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3a6963ea59db994acaf71b7d14a19295c093fd3e1302337e58acac77af3b51d
[INFO] running `Command { std: "docker" "start" "-a" "c3a6963ea59db994acaf71b7d14a19295c093fd3e1302337e58acac77af3b51d", kill_on_drop: false }`
[INFO] [stderr]    Compiling x86 v0.47.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling bit_field v0.10.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memmap v0.2.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking termcodes v0.0.1
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]    Compiling kvm-sys v0.3.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking mmap v0.1.1
[INFO] [stderr]     Checking klogger v0.0.10
[INFO] [stderr]     Checking x86test-types v0.0.5
[INFO] [stderr]    Compiling x86test-macro v0.0.5
[INFO] [stderr]     Checking x86test v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/hypervisor/mod.rs:243:21
[INFO] [stdout]     |
[INFO] [stdout] 243 |     UnexpectedWrite(u16, u32),
[INFO] [stdout]     |     --------------- ^^^  ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IoHandleError` 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] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 243 -     UnexpectedWrite(u16, u32),
[INFO] [stdout] 243 +     UnexpectedWrite((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/hypervisor/mod.rs:244:20
[INFO] [stdout]     |
[INFO] [stdout] 244 |     UnexpectedRead(u16),
[INFO] [stdout]     |     -------------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IoHandleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 244 -     UnexpectedRead(u16),
[INFO] [stdout] 244 +     UnexpectedRead(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/hypervisor/mod.rs:95:64
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub(crate) fn create_vcpu(&'a mut self, init_fn: VAddr) -> kvm::Vcpu {
[INFO] [stdout]    |                                -- the lifetime is named here   ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub(crate) fn create_vcpu(&'a mut self, init_fn: VAddr) -> kvm::Vcpu<'a> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/hypervisor/vspace.rs:116:56
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub(crate) fn new(pmem: &'a mut PhysicalMemory) -> VSpace {
[INFO] [stdout]     |                              --                        ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub(crate) fn new(pmem: &'a mut PhysicalMemory) -> VSpace<'a> {
[INFO] [stdout]     |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `lang_items` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/hypervisor/mod.rs:243:21
[INFO] [stdout]     |
[INFO] [stdout] 243 |     UnexpectedWrite(u16, u32),
[INFO] [stdout]     |     --------------- ^^^  ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IoHandleError` 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] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 243 -     UnexpectedWrite(u16, u32),
[INFO] [stdout] 243 +     UnexpectedWrite((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/hypervisor/mod.rs:244:20
[INFO] [stdout]     |
[INFO] [stdout] 244 |     UnexpectedRead(u16),
[INFO] [stdout]     |     -------------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IoHandleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 244 -     UnexpectedRead(u16),
[INFO] [stdout] 244 +     UnexpectedRead(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/hypervisor/mod.rs:95:64
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub(crate) fn create_vcpu(&'a mut self, init_fn: VAddr) -> kvm::Vcpu {
[INFO] [stdout]    |                                -- the lifetime is named here   ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub(crate) fn create_vcpu(&'a mut self, init_fn: VAddr) -> kvm::Vcpu<'a> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/hypervisor/vspace.rs:116:56
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub(crate) fn new(pmem: &'a mut PhysicalMemory) -> VSpace {
[INFO] [stdout]     |                              --                        ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub(crate) fn new(pmem: &'a mut PhysicalMemory) -> VSpace<'a> {
[INFO] [stdout]     |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `lang_items` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.50s
[INFO] running `Command { std: "docker" "inspect" "c3a6963ea59db994acaf71b7d14a19295c093fd3e1302337e58acac77af3b51d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a6963ea59db994acaf71b7d14a19295c093fd3e1302337e58acac77af3b51d", kill_on_drop: false }`
[INFO] [stdout] c3a6963ea59db994acaf71b7d14a19295c093fd3e1302337e58acac77af3b51d
