[INFO] fetching crate velocidb 0.1.0...
[INFO] testing velocidb-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate velocidb 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate velocidb 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate velocidb 0.1.0
[INFO] tweaked toml for crates.io crate velocidb 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate velocidb 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate velocidb 0.1.0 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 261f58e217ab93742ba636db944dc38351484352155cbaa904a47cbeb55d495d
[INFO] running `Command { std: "docker" "start" "-a" "261f58e217ab93742ba636db944dc38351484352155cbaa904a47cbeb55d495d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "261f58e217ab93742ba636db944dc38351484352155cbaa904a47cbeb55d495d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "261f58e217ab93742ba636db944dc38351484352155cbaa904a47cbeb55d495d", kill_on_drop: false }`
[INFO] [stdout] 261f58e217ab93742ba636db944dc38351484352155cbaa904a47cbeb55d495d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a89121f91344647ec3975cf568329a8ca52f71bcf9b02c86939d1650df182b7
[INFO] running `Command { std: "docker" "start" "-a" "6a89121f91344647ec3975cf568329a8ca52f71bcf9b02c86939d1650df182b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling owned-alloc v0.2.0
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling lockfree v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling mio v1.1.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling memmap2 v0.9.9
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling velocidb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown x86 target feature: clwb
[INFO] [stdout]    --> src/pmem.rs:125:16
[INFO] [stdout]     |
[INFO] [stdout] 125 |             if is_x86_feature_detected!("clwb") {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `is_x86_feature_detected` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown x86 target feature: clflushopt
[INFO] [stdout]    --> src/pmem.rs:127:23
[INFO] [stdout]     |
[INFO] [stdout] 127 |             } else if is_x86_feature_detected!("clflushopt") {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `is_x86_feature_detected` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PAGE_SIZE`
[INFO] [stdout]  --> src/lockfree.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::storage::{Page, PAGE_SIZE};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VelociError`
[INFO] [stdout]  --> src/lockfree.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::types::{PageId, Result, VelociError};
[INFO] [stdout]   |                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Atomic`, `Owned`, `Shared`, and `self as epoch`
[INFO] [stdout]  --> src/lockfree.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crossbeam_epoch::{self as epoch, Atomic, Owned, Shared};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^  ^^^^^^  ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pager`
[INFO] [stdout]  --> src/btree_optimized.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::storage::{Page, Pager, PAGE_SIZE};
[INFO] [stdout]   |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Row` and `Value`
[INFO] [stdout]  --> src/btree_optimized.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::types::{PageId, Result, Row, Value, VelociError};
[INFO] [stdout]   |                                    ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::RwLock`
[INFO] [stdout]  --> src/btree_optimized.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use parking_lot::RwLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/btree_optimized.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VelociError`
[INFO] [stdout]  --> src/crdt.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::types::{Result, Value, VelociError};
[INFO] [stdout]   |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::async_io::AsyncVfs`
[INFO] [stdout]  --> src/cloud_vfs.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::async_io::AsyncVfs;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PAGE_SIZE` and `Page`
[INFO] [stdout]  --> src/cloud_vfs.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::storage::{Page, PAGE_SIZE};
[INFO] [stdout]   |                      ^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PageId`, `Result`, and `VelociError`
[INFO] [stdout]  --> src/cloud_vfs.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::types::{PageId, Result, VelociError};
[INFO] [stdout]   |                    ^^^^^^  ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_trait::async_trait`
[INFO] [stdout]   --> src/cloud_vfs.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use async_trait::async_trait;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::RwLock`
[INFO] [stdout]   --> src/cloud_vfs.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use parking_lot::RwLock;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/cloud_vfs.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]   --> src/cloud_vfs.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::sync::Arc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Row`
[INFO] [stdout]  --> src/hybrid_storage.rs:4:36
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::types::{Column, Result, Row, Value, VelociError};
[INFO] [stdout]   |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::arch::x86_64::*`
[INFO] [stdout]    --> src/pmem.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |         use std::arch::x86_64::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::arch::x86_64::*`
[INFO] [stdout]    --> src/pmem.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         use std::arch::x86_64::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the feature named `clwb` is not valid for this target
[INFO] [stdout]    --> src/pmem.rs:149:22
[INFO] [stdout]     |
[INFO] [stdout] 149 |     #[target_feature(enable = "clwb")]
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^ `clwb` is not valid for this target
[INFO] [stdout]     |
[INFO] [stdout]     = help: valid names are: `kl`, `adx`, `aes`, `apxf`, and `avx` and 74 more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the feature named `clflushopt` is not valid for this target
[INFO] [stdout]    --> src/pmem.rs:161:22
[INFO] [stdout]     |
[INFO] [stdout] 161 |     #[target_feature(enable = "clflushopt")]
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^ `clflushopt` is not valid for this target
[INFO] [stdout]     |
[INFO] [stdout]     = help: valid names are: `adx`, `aes`, `amx-avx512`, `amx-bf16`, and `amx-complex` and 74 more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `_mm_clwb` in this scope
[INFO] [stdout]    --> src/pmem.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             _mm_clwb(ptr.add(i) as *const u8);
[INFO] [stdout]     |             ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `_mm_clflushopt` in this scope
[INFO] [stdout]    --> src/pmem.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |             _mm_clflushopt(ptr.add(i) as *const u8);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/../../stdarch/crates/core_arch/src/x86/sse2.rs:36:0
[INFO] [stdout]     |
[INFO] [stdout]     = note: similarly named function `_mm_clflush` defined here
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 167 -             _mm_clflushopt(ptr.add(i) as *const u8);
[INFO] [stdout] 167 +             _mm_clflush(ptr.add(i) as *const u8);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end_offset`
[INFO] [stdout]    --> src/btree.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let end_offset = self.find_data_end(&header, page.data())?;
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/btree_optimized.rs:270:13
[INFO] [stdout]     |
[INFO] [stdout] 270 |         let mut data_area = [0u8; PAGE_SIZE - 64 - (OPTIMIZED_BTREE_ORDER * 8) - ((OPTIMIZED_BTREE_ORDER + 1) * 4)];
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/hybrid_storage.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let mut column_storage = match first_value {
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `velocidb` (lib) due to 6 previous errors; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6a89121f91344647ec3975cf568329a8ca52f71bcf9b02c86939d1650df182b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a89121f91344647ec3975cf568329a8ca52f71bcf9b02c86939d1650df182b7", kill_on_drop: false }`
[INFO] [stdout] 6a89121f91344647ec3975cf568329a8ca52f71bcf9b02c86939d1650df182b7
