[INFO] fetching crate rusty-hermit 0.3.53...
[INFO] testing rusty-hermit-0.3.53 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate rusty-hermit 0.3.53 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate rusty-hermit 0.3.53 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-36/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-36/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rusty-hermit 0.3.53
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rusty-hermit 0.3.53
[INFO] tweaked toml for crates.io crate rusty-hermit 0.3.53 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paste v1.0.6
[INFO] [stderr]   Downloaded bit_field v0.10.1
[INFO] [stderr]   Downloaded float-cmp v0.9.0
[INFO] [stderr]   Downloaded tock-registers v0.7.0
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded raw-cpuid v10.2.0
[INFO] [stderr]   Downloaded multiboot v0.7.0
[INFO] [stderr]   Downloaded aarch64 v0.0.6
[INFO] [stderr]   Downloaded qemu-exit v2.0.1
[INFO] [stderr]   Downloaded x86 v0.41.0
[INFO] [stderr]   Downloaded cortex-a v6.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62d8148fc2f6759ac91e24c3c38d029361bba9f04e01d9a30d09780b229e6b98
[INFO] running `Command { std: "docker" "start" "-a" "62d8148fc2f6759ac91e24c3c38d029361bba9f04e01d9a30d09780b229e6b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62d8148fc2f6759ac91e24c3c38d029361bba9f04e01d9a30d09780b229e6b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62d8148fc2f6759ac91e24c3c38d029361bba9f04e01d9a30d09780b229e6b98", kill_on_drop: false }`
[INFO] [stdout] 62d8148fc2f6759ac91e24c3c38d029361bba9f04e01d9a30d09780b229e6b98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53bd92f60529db88ad29ed193e478d373ea7c4bfb19cec25c7952e00e1fe01e4
[INFO] running `Command { std: "docker" "start" "-a" "53bd92f60529db88ad29ed193e478d373ea7c4bfb19cec25c7952e00e1fe01e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling x86 v0.41.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling raw-cpuid v10.2.0
[INFO] [stderr]    Compiling multiboot v0.7.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling rusty-hermit v0.3.53 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `prelude` in `alloc`
[INFO] [stdout]  --> src/syscalls/interfaces/uhyve.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use alloc::prelude::v1::Box;
[INFO] [stdout]   |            ^^^^^^^ could not find `prelude` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::kernel::pre_init`
[INFO] [stdout]  --> src/arch/x86_64/kernel/start.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     kernel::{pre_init, scheduler::TaskStacks, BootInfo},
[INFO] [stdout]   |              ^^^^^^^^ no `pre_init` in `arch::x86_64::kernel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: const operands for inline assembly are unstable
[INFO] [stdout]   --> src/arch/x86_64/kernel/start.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 |             current_stack_address_offset = const BootInfo::current_stack_address_offset(),
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #72016 <https://github.com/rust-lang/rust/issues/72016> for more information
[INFO] [stdout]    = help: add `#![feature(asm_const)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: const operands for inline assembly are unstable
[INFO] [stdout]   --> src/arch/x86_64/kernel/start.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 |             stack_top_offset = const KERNEL_STACK_SIZE - TaskStacks::MARKER_SIZE,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #72016 <https://github.com/rust-lang/rust/issues/72016> for more information
[INFO] [stdout]    = help: add `#![feature(asm_const)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: sym operands for inline assembly are unstable
[INFO] [stdout]   --> src/arch/x86_64/kernel/start.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 |             pre_init = sym pre_init,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #72016 <https://github.com/rust-lang/rust/issues/72016> for more information
[INFO] [stdout]    = help: add `#![feature(asm_sym)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: sym operands for inline assembly are unstable
[INFO] [stdout]    --> src/arch/x86_64/kernel/switch.rs:123:3
[INFO] [stdout]     |
[INFO] [stdout] 123 |         set_current_kernel_stack = sym set_current_kernel_stack,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #72016 <https://github.com/rust-lang/rust/issues/72016> for more information
[INFO] [stdout]     = help: add `#![feature(asm_sym)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: sym operands for inline assembly are unstable
[INFO] [stdout]    --> src/arch/x86_64/kernel/switch.rs:145:3
[INFO] [stdout]     |
[INFO] [stdout] 145 |         set_current_kernel_stack = sym set_current_kernel_stack,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #72016 <https://github.com/rust-lang/rust/issues/72016> for more information
[INFO] [stdout]     = help: add `#![feature(asm_sym)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::alloc::Layout`
[INFO] [stdout]   --> src/lib.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | use alloc::alloc::Layout;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::alloc::GlobalAlloc`
[INFO] [stdout]   --> src/lib.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | use core::alloc::GlobalAlloc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arch::percore::*`
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | use arch::percore::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mm::allocator::LockedHeap`
[INFO] [stdout]   --> src/lib.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | use mm::allocator::LockedHeap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cr0`, `cr0_write`, `cr0`, `cr4`
[INFO] [stdout]   --> src/arch/x86_64/kernel/mod.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 | use x86::controlregs::{cr0, cr0_write, cr4, Cr0};
[INFO] [stdout]    |                        ^^^  ^^^^^^^^^  ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::kernel_message_buffer`
[INFO] [stdout]   --> src/arch/x86_64/kernel/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::kernel_message_buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ptr`
[INFO] [stdout]   --> src/arch/x86_64/kernel/apic.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use core::ptr;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `idt`
[INFO] [stdout]   --> src/arch/x86_64/kernel/processor.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::arch::x86_64::kernel::{idt, irq, pic, pit, BOOT_INFO};
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HugePageSize`, `LargePageSize`
[INFO] [stdout]   --> src/mm/mod.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     BasePageSize, HugePageSize, LargePageSize, PageSize, PageTableEntryFlags,
[INFO] [stdout]    |                   ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::arch::mm::physicalmem::total_memory_size`
[INFO] [stdout]   --> src/mm/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::arch::mm::physicalmem::total_memory_size;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::environment`
[INFO] [stdout]   --> src/mm/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::environment;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::mem`
[INFO] [stdout]   --> src/mm/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use core::mem;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::vec::Vec`
[INFO] [stdout]  --> src/syscalls/interfaces/uhyve.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use alloc::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::mem`
[INFO] [stdout]   --> src/syscalls/interfaces/uhyve.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use core::mem;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-hermit` due to 8 previous errors; 15 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "53bd92f60529db88ad29ed193e478d373ea7c4bfb19cec25c7952e00e1fe01e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53bd92f60529db88ad29ed193e478d373ea7c4bfb19cec25c7952e00e1fe01e4", kill_on_drop: false }`
[INFO] [stdout] 53bd92f60529db88ad29ed193e478d373ea7c4bfb19cec25c7952e00e1fe01e4