[INFO] fetching crate rosella 0.5.7...
[INFO] testing rosella-0.5.7 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rosella 0.5.7 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rosella 0.5.7
[INFO] finished tweaking crates.io crate rosella 0.5.7
[INFO] tweaked toml for crates.io crate rosella 0.5.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rosella 0.5.7 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 rosella 0.5.7 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] [stderr] warning: `panic` setting is ignored for `bench` profile
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a635ee4913a2708accb9621f9f9408aae47f4a69c4c129c840dcb6c5ffc110d
[INFO] running `Command { std: "docker" "start" "-a" "0a635ee4913a2708accb9621f9f9408aae47f4a69c4c129c840dcb6c5ffc110d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a635ee4913a2708accb9621f9f9408aae47f4a69c4c129c840dcb6c5ffc110d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a635ee4913a2708accb9621f9f9408aae47f4a69c4c129c840dcb6c5ffc110d", kill_on_drop: false }`
[INFO] [stdout] 0a635ee4913a2708accb9621f9f9408aae47f4a69c4c129c840dcb6c5ffc110d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af6da2ff38406fc9a5733c20884b32c014b1f22568ef1f6345041a1e0baa047b
[INFO] running `Command { std: "docker" "start" "-a" "af6da2ff38406fc9a5733c20884b32c014b1f22568ef1f6345041a1e0baa047b", kill_on_drop: false }`
[INFO] [stderr] warning: `panic` setting is ignored for `bench` profile
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling cc v1.2.52
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling pest v2.8.5
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling safe_arch v0.7.4
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling clap_lex v0.7.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling pest_meta v2.8.5
[INFO] [stderr]    Compiling clap_builder v4.5.54
[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]    Compiling wide v0.7.33
[INFO] [stderr]    Compiling flate2 v1.1.8
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling portable-atomic v1.13.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling zmij v1.0.14
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling simba v0.6.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling roff v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling pest_generator v2.8.5
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling console v0.16.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling bird_tool_utils-man v0.4.0
[INFO] [stderr]    Compiling xz2 v0.1.7
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap v4.5.54
[INFO] [stderr]    Compiling bzip2 v0.4.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling buffer-redux v1.1.0
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling pest_derive v2.8.5
[INFO] [stderr]    Compiling env_logger v0.10.2
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling py_literal v0.4.0
[INFO] [stderr]    Compiling unit-prefix v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling bird_tool_utils v0.4.1
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling indicatif v0.18.3
[INFO] [stderr]    Compiling needletail v0.5.1
[INFO] [stderr]    Compiling clap_complete v4.5.65
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling roff v0.2.2
[INFO] [stderr]    Compiling zip v0.5.13
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling nalgebra v0.29.0
[INFO] [stderr]    Compiling ndarray-npy v0.8.1
[INFO] [stderr]    Compiling statrs v0.16.1
[INFO] [stderr]    Compiling rosella v0.5.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Array2`
[INFO] [stdout]   --> src/recover/recover_engine.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 | use ndarray::{Dim, ArrayBase, OwnedRepr, Array2};
[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 imports: `File` and `Path`
[INFO] [stdout]  --> src/refine/refinery.rs:1:124
[INFO] [stdout]   |
[INFO] [stdout] 1 | ..., Read, BufWriter, Write}, cmp::max, path::{self, Path}, fs::{OpenOptions, File}};
[INFO] [stdout]   |                                                      ^^^^                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/recover/recover_engine.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let mut coverage_table = calculate_coverage(m)?;
[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: unused variable: `embeddings`
[INFO] [stdout]    --> src/recover/recover_engine.rs:569:9
[INFO] [stdout]     |
[INFO] [stdout] 569 |         embeddings: Option<&ArrayBase<OwnedRepr<f64>, Dim<[usize; 2]>>>,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_embeddings`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_B` is never used
[INFO] [stdout]   --> src/recover/recover_engine.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | const DEFAULT_B: f64 = 1.5;
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_ITERATIONS` is never used
[INFO] [stdout]   --> src/recover/recover_engine.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 | const MAX_ITERATIONS: usize = 5;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `filtering_rounds`, `ef_construction`, and `max_layers` are never read
[INFO] [stdout]   --> src/recover/recover_engine.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct RecoverEngine {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 62 |     filtering_rounds: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 63 |     ef_construction: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 64 |     max_layers: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinMetrics` is never constructed
[INFO] [stdout]    --> src/recover/recover_engine.rs:779:8
[INFO] [stdout]     |
[INFO] [stdout] 779 | struct BinMetrics {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rosella` (bin "rosella")
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name rosella --edition=2021 src/bin/rosella.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C lto -C codegen-units=16 -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("deafult", "no_flight", "num-traits"))' -C metadata=e554e748ac0ccf2a -C extra-filename=-75ead5204a645ba7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-b78cd9891393b104.rlib --extern bird_tool_utils=/opt/rustwide/target/debug/deps/libbird_tool_utils-2fb4345e3ea4df50.rlib --extern bird_tool_utils_man=/opt/rustwide/target/debug/deps/libbird_tool_utils_man-7cc09f831b1a088e.rlib --extern clap=/opt/rustwide/target/debug/deps/libclap-2b2c86212dbd39a6.rlib --extern clap_complete=/opt/rustwide/target/debug/deps/libclap_complete-57661bc8614d8051.rlib --extern csv=/opt/rustwide/target/debug/deps/libcsv-1c727261aaa4d259.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-268a79361f2b95e8.rlib --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-accf39fa1655f508.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-1291360ce211d1f9.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-038dac6936478579.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-05c2d719d649df04.rlib --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-9dbfe12f642ccc40.rlib --extern ndarray_npy=/opt/rustwide/target/debug/deps/libndarray_npy-0d547953baf3f610.rlib --extern needletail=/opt/rustwide/target/debug/deps/libneedletail-67796ca28ca8dae6.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-6a6d927781b1777e.rlib --extern rayon=/opt/rustwide/target/debug/deps/librayon-4f672c08be35010e.rlib --extern roff=/opt/rustwide/target/debug/deps/libroff-83ba2863820ff6be.rlib --extern rosella=/opt/rustwide/target/debug/deps/librosella-943cb7ad28908f32.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-0c728d5d291092e7.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-5179331c9ab48e58.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-e26d6c77849d4339.rlib --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-3ba759e7ab4d8bab.rlib --extern statrs=/opt/rustwide/target/debug/deps/libstatrs-5c554743c190b32f.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-ed81f139957521a0.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/bzip2-sys-4118ca360709604a/out/lib -L native=/usr/lib/x86_64-linux-gnu` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "af6da2ff38406fc9a5733c20884b32c014b1f22568ef1f6345041a1e0baa047b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af6da2ff38406fc9a5733c20884b32c014b1f22568ef1f6345041a1e0baa047b", kill_on_drop: false }`
[INFO] [stdout] af6da2ff38406fc9a5733c20884b32c014b1f22568ef1f6345041a1e0baa047b
