[INFO] fetching crate proximity-cache 0.1.1...
[INFO] testing proximity-cache-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate proximity-cache 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate proximity-cache 0.1.1
[INFO] finished tweaking crates.io crate proximity-cache 0.1.1
[INFO] tweaked toml for crates.io crate proximity-cache 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proximity-cache 0.1.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate proximity-cache 0.1.1 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 165054e2f8af9683cde46235209d3df4ff3d696c7cd812bf4e32d9d3aa06a060
[INFO] running `Command { std: "docker" "start" "-a" "165054e2f8af9683cde46235209d3df4ff3d696c7cd812bf4e32d9d3aa06a060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "165054e2f8af9683cde46235209d3df4ff3d696c7cd812bf4e32d9d3aa06a060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "165054e2f8af9683cde46235209d3df4ff3d696c7cd812bf4e32d9d3aa06a060", kill_on_drop: false }`
[INFO] [stdout] 165054e2f8af9683cde46235209d3df4ff3d696c7cd812bf4e32d9d3aa06a060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed66f3704217fde72d87fe473a12842747749611cf6a7025359db03988ff9287
[INFO] running `Command { std: "docker" "start" "-a" "ed66f3704217fde72d87fe473a12842747749611cf6a7025359db03988ff9287", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling thiserror v2.0.9
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.95
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v2.0.9
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling pest v2.7.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pest_meta v2.7.15
[INFO] [stderr]    Compiling pest_generator v2.7.15
[INFO] [stderr]    Compiling pest_derive v2.7.15
[INFO] [stderr]    Compiling py_literal v0.4.0
[INFO] [stderr]    Compiling npyz v0.8.3
[INFO] [stderr]    Compiling proximity-cache v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(portable_simd, test, array_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `array_chunks`
[INFO] [stdout]  --> src/lib.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(portable_simd, test, array_chunks)]
[INFO] [stdout]   |                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `array_chunks` found for struct `Vec<u8>` in the current scope
[INFO] [stdout]  --> src/fs/file_manager.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let chunks = file_u8.array_chunks::<516>();
[INFO] [stdout]   |                          ^^^^^^^^^^^^ `Vec<u8>` is not an iterator
[INFO] [stdout]   |
[INFO] [stdout] help: call `.into_iter()` first
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let chunks = file_u8.into_iter().array_chunks::<516>();
[INFO] [stdout]   |                          ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `[u8]` is not an iterator
[INFO] [stdout]   --> src/fs/file_manager.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let chunks = v[4..].array_chunks::<4>();
[INFO] [stdout]    |                         ^^^^^^^^^^^^ `[u8]` is not an iterator
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `[u8]: Iterator`
[INFO] [stdout]            which is required by `&mut [u8]: Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proximity-cache` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ed66f3704217fde72d87fe473a12842747749611cf6a7025359db03988ff9287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed66f3704217fde72d87fe473a12842747749611cf6a7025359db03988ff9287", kill_on_drop: false }`
[INFO] [stdout] ed66f3704217fde72d87fe473a12842747749611cf6a7025359db03988ff9287