[INFO] fetching crate kvm-ioctls 0.6.0...
[INFO] checking kvm-ioctls-0.6.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate kvm-ioctls 0.6.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate kvm-ioctls 0.6.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/.cargo/config
[INFO] started tweaking crates.io crate kvm-ioctls 0.6.0
[INFO] finished tweaking crates.io crate kvm-ioctls 0.6.0
[INFO] tweaked toml for crates.io crate kvm-ioctls 0.6.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kvm-bindings v0.3.0
[INFO] [stderr]   Downloaded vmm-sys-util v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9a8f8682d6bd2048ee8554167f6601bed11e0a2ea53a9fa4e148ec23bdc20b0
[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" "e9a8f8682d6bd2048ee8554167f6601bed11e0a2ea53a9fa4e148ec23bdc20b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9a8f8682d6bd2048ee8554167f6601bed11e0a2ea53a9fa4e148ec23bdc20b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9a8f8682d6bd2048ee8554167f6601bed11e0a2ea53a9fa4e148ec23bdc20b0", kill_on_drop: false }`
[INFO] [stdout] e9a8f8682d6bd2048ee8554167f6601bed11e0a2ea53a9fa4e148ec23bdc20b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3b2f8eeae70079b39bb05098be6318436b0b836c77c823978a6f4a40942d504
[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" "d3b2f8eeae70079b39bb05098be6318436b0b836c77c823978a6f4a40942d504", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking vmm-sys-util v0.8.0
[INFO] [stderr]     Checking kvm-bindings v0.3.0
[INFO] [stderr]     Checking kvm-ioctls v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `as_mut_fam_struct_ptr` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]    --> src/ioctls/system.rs:238:50
[INFO] [stdout]     |
[INFO] [stdout] 238 |             ioctl_with_mut_ptr(self, kind, cpuid.as_mut_fam_struct_ptr())
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/ioctls/system.rs:244:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |         Ok(cpuid)
[INFO] [stdout]     |            ^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `FamStructWrapper<_>`
[INFO] [stdout]                  found enum `std::result::Result<FamStructWrapper<_>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_mut_fam_struct_ptr` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]    --> src/ioctls/system.rs:238:50
[INFO] [stdout]     |
[INFO] [stdout] 238 |             ioctl_with_mut_ptr(self, kind, cpuid.as_mut_fam_struct_ptr())
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_mut_fam_struct_ptr` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msr_list>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]    --> src/ioctls/system.rs:324:26
[INFO] [stdout]     |
[INFO] [stdout] 324 |                 msr_list.as_mut_fam_struct_ptr(),
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msr_list>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/ioctls/system.rs:244:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |         Ok(cpuid)
[INFO] [stdout]     |            ^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `FamStructWrapper<_>`
[INFO] [stdout]                  found enum `std::result::Result<FamStructWrapper<_>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_mut_fam_struct_ptr` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msr_list>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]    --> src/ioctls/system.rs:324:26
[INFO] [stdout]     |
[INFO] [stdout] 324 |                 msr_list.as_mut_fam_struct_ptr(),
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msr_list>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/ioctls/system.rs:332:12
[INFO] [stdout]     |
[INFO] [stdout] 332 |         Ok(msr_list)
[INFO] [stdout]     |            ^^^^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `FamStructWrapper<_>`
[INFO] [stdout]                  found enum `std::result::Result<FamStructWrapper<_>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_mut_fam_struct_ptr` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]    --> src/ioctls/vcpu.rs:382:62
[INFO] [stdout]     |
[INFO] [stdout] 382 |             ioctl_with_mut_ptr(self, KVM_GET_CPUID2(), cpuid.as_mut_fam_struct_ptr())
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/ioctls/system.rs:332:12
[INFO] [stdout]     |
[INFO] [stdout] 332 |         Ok(msr_list)
[INFO] [stdout]     |            ^^^^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `FamStructWrapper<_>`
[INFO] [stdout]                  found enum `std::result::Result<FamStructWrapper<_>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `!=` cannot be applied to type `FamStructWrapper<kvm_bindings::kvm_cpuid2>`
[INFO] [stdout]    --> src/ioctls/system.rs:609:25
[INFO] [stdout]     |
[INFO] [stdout] 609 |         assert!(cpuid_1 != cpuid_2);
[INFO] [stdout]     |                 ------- ^^ ------- std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 FamStructWrapper<kvm_bindings::kvm_cpuid2>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/ioctls/vcpu.rs:387:12
[INFO] [stdout]     |
[INFO] [stdout] 387 |         Ok(cpuid)
[INFO] [stdout]     |            ^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `FamStructWrapper<_>`
[INFO] [stdout]                  found enum `std::result::Result<FamStructWrapper<_>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_mut_fam_struct_ptr` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]    --> src/ioctls/vcpu.rs:382:62
[INFO] [stdout]     |
[INFO] [stdout] 382 |             ioctl_with_mut_ptr(self, KVM_GET_CPUID2(), cpuid.as_mut_fam_struct_ptr())
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_cpuid2>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kvm-ioctls`
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/ioctls/vcpu.rs:387:12
[INFO] [stdout]     |
[INFO] [stdout] 387 |         Ok(cpuid)
[INFO] [stdout]     |            ^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `FamStructWrapper<_>`
[INFO] [stdout]                  found enum `std::result::Result<FamStructWrapper<_>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> src/ioctls/vcpu.rs:1565:23
[INFO] [stdout]      |
[INFO] [stdout] 1565 |         vcpu.set_msrs(&msrs_wrapper).unwrap();
[INFO] [stdout]      |                       ^^^^^^^^^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected reference `&FamStructWrapper<kvm_bindings::kvm_msrs>`
[INFO] [stdout]                 found reference `&std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> src/ioctls/vcpu.rs:1579:35
[INFO] [stdout]      |
[INFO] [stdout] 1579 |         let nmsrs = vcpu.get_msrs(&mut returned_kvm_msrs).unwrap();
[INFO] [stdout]      |                                   ^^^^^^^^^^^^^^^^^^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected mutable reference `&mut FamStructWrapper<kvm_bindings::kvm_msrs>`
[INFO] [stdout]                 found mutable reference `&mut std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_fam_struct_ref` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]     --> src/ioctls/vcpu.rs:1583:45
[INFO] [stdout]      |
[INFO] [stdout] 1583 |         assert_eq!(nmsrs, returned_kvm_msrs.as_fam_struct_ref().len() as usize);
[INFO] [stdout]      |                                             ^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for enum `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>` in the current scope
[INFO] [stdout]     --> src/ioctls/vcpu.rs:1586:58
[INFO] [stdout]      |
[INFO] [stdout] 1586 |         let returned_kvm_msr_entries = returned_kvm_msrs.as_slice();
[INFO] [stdout]      |                                                          ^^^^^^^^ method not found in `std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> src/ioctls/vcpu.rs:1957:27
[INFO] [stdout]      |
[INFO] [stdout] 1957 |                 .get_msrs(&mut Msrs::new(1))
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected mutable reference `&mut FamStructWrapper<kvm_bindings::kvm_msrs>`
[INFO] [stdout]                 found mutable reference `&mut std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> src/ioctls/vcpu.rs:1963:37
[INFO] [stdout]      |
[INFO] [stdout] 1963 |             faulty_vcpu_fd.set_msrs(&Msrs::new(1)).unwrap_err().errno(),
[INFO] [stdout]      |                                     ^^^^^^^^^^^^^ expected struct `FamStructWrapper`, found enum `std::result::Result`
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected reference `&FamStructWrapper<kvm_bindings::kvm_msrs>`
[INFO] [stdout]                 found reference `&std::result::Result<FamStructWrapper<kvm_bindings::kvm_msrs>, vmm_sys_util::fam::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vmm_sys_util::fam::FamStruct`
[INFO] [stdout]     --> src/ioctls/vcpu.rs:1546:13
[INFO] [stdout]      |
[INFO] [stdout] 1546 |         use vmm_sys_util::fam::FamStruct;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0369, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d3b2f8eeae70079b39bb05098be6318436b0b836c77c823978a6f4a40942d504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b2f8eeae70079b39bb05098be6318436b0b836c77c823978a6f4a40942d504", kill_on_drop: false }`
[INFO] [stdout] d3b2f8eeae70079b39bb05098be6318436b0b836c77c823978a6f4a40942d504