[INFO] fetching crate bulk_allocator 0.2.0...
[INFO] checking bulk_allocator-0.2.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate bulk_allocator 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bulk_allocator 0.2.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bulk_allocator 0.2.0
[INFO] finished tweaking crates.io crate bulk_allocator 0.2.0
[INFO] tweaked toml for crates.io crate bulk_allocator 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f011db49e7cf1ecc187ff69d823ebcc9d4e5d2188b1d83cd6243e4d3ef00c6c6
[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" "f011db49e7cf1ecc187ff69d823ebcc9d4e5d2188b1d83cd6243e4d3ef00c6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f011db49e7cf1ecc187ff69d823ebcc9d4e5d2188b1d83cd6243e4d3ef00c6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f011db49e7cf1ecc187ff69d823ebcc9d4e5d2188b1d83cd6243e4d3ef00c6c6", kill_on_drop: false }`
[INFO] [stdout] f011db49e7cf1ecc187ff69d823ebcc9d4e5d2188b1d83cd6243e4d3ef00c6c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adc2bc1f2173deacc661f4d89b94ce2057526880753b138961086d04aac10372
[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" "adc2bc1f2173deacc661f4d89b94ce2057526880753b138961086d04aac10372", kill_on_drop: false }`
[INFO] [stderr]     Checking bulk_allocator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]   --> src/backend.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | use core::alloc::{AllocErr, AllocRef, Layout};
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   no `AllocErr` in `alloc`
[INFO] [stdout]    |                   help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]   --> src/bulk_allocator.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | use core::alloc::{AllocErr, AllocRef, Layout};
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   no `AllocErr` in `alloc`
[INFO] [stdout]    |                   help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]   --> src/layout_bulk_allocator.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | use core::alloc::{AllocErr, AllocRef, Layout};
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   no `AllocErr` in `alloc`
[INFO] [stdout]    |                   help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]   --> src/backend.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | use core::alloc::{AllocErr, AllocRef, Layout};
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   no `AllocErr` in `alloc`
[INFO] [stdout]    |                   help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]   --> src/bulk_allocator.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | use core::alloc::{AllocErr, AllocRef, Layout};
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   no `AllocErr` in `alloc`
[INFO] [stdout]    |                   help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocErr`
[INFO] [stdout]   --> src/layout_bulk_allocator.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | use core::alloc::{AllocErr, AllocRef, Layout};
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   no `AllocErr` in `alloc`
[INFO] [stdout]    |                   help: a similar name exists in the module: `AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `dealloc` has an incompatible type for trait
[INFO] [stdout]   --> src/backend.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `unsafe fn(&Backend<'_, B>, NonNull<_>, Layout)`
[INFO] [stdout]               found fn pointer `unsafe fn(&mut Backend<'_, B>, NonNull<_>, Layout)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `dealloc` has an incompatible type for trait
[INFO] [stdout]    --> src/bulk_allocator.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 173 |     unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `unsafe fn(&BulkAllocator<'_, B>, NonNull<_>, Layout)`
[INFO] [stdout]                found fn pointer `unsafe fn(&mut BulkAllocator<'_, B>, NonNull<_>, Layout)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `dealloc` has an incompatible type for trait
[INFO] [stdout]    --> src/layout_bulk_allocator.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `unsafe fn(&LayoutBulkAllocator<'_, B>, NonNull<_>, Layout)`
[INFO] [stdout]                found fn pointer `unsafe fn(&mut LayoutBulkAllocator<'_, B>, NonNull<_>, Layout)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `dealloc` has an incompatible type for trait
[INFO] [stdout]   --> src/backend.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `unsafe fn(&Backend<'_, B>, std::ptr::NonNull<_>, std::alloc::Layout)`
[INFO] [stdout]               found fn pointer `unsafe fn(&mut Backend<'_, B>, std::ptr::NonNull<_>, std::alloc::Layout)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `dealloc` has an incompatible type for trait
[INFO] [stdout]    --> src/bulk_allocator.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 173 |     unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `unsafe fn(&bulk_allocator::BulkAllocator<'_, B>, std::ptr::NonNull<_>, std::alloc::Layout)`
[INFO] [stdout]                found fn pointer `unsafe fn(&mut bulk_allocator::BulkAllocator<'_, B>, std::ptr::NonNull<_>, std::alloc::Layout)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `dealloc` has an incompatible type for trait
[INFO] [stdout]    --> src/layout_bulk_allocator.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `unsafe fn(&layout_bulk_allocator::LayoutBulkAllocator<'_, B>, std::ptr::NonNull<_>, std::alloc::Layout)`
[INFO] [stdout]                found fn pointer `unsafe fn(&mut layout_bulk_allocator::LayoutBulkAllocator<'_, B>, std::ptr::NonNull<_>, std::alloc::Layout)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bulk_allocator`
[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: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "adc2bc1f2173deacc661f4d89b94ce2057526880753b138961086d04aac10372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adc2bc1f2173deacc661f4d89b94ce2057526880753b138961086d04aac10372", kill_on_drop: false }`
[INFO] [stdout] adc2bc1f2173deacc661f4d89b94ce2057526880753b138961086d04aac10372