[INFO] fetching crate nucgen 0.2.0...
[INFO] testing nucgen-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate nucgen 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate nucgen 0.2.0
[INFO] finished tweaking crates.io crate nucgen 0.2.0
[INFO] tweaked toml for crates.io crate nucgen 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nucgen 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nucgen 0.2.0 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42f0afdc3892273fedc796684ec5bc913e888b36465159e60404186987cc22a2
[INFO] running `Command { std: "docker" "start" "-a" "42f0afdc3892273fedc796684ec5bc913e888b36465159e60404186987cc22a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42f0afdc3892273fedc796684ec5bc913e888b36465159e60404186987cc22a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f0afdc3892273fedc796684ec5bc913e888b36465159e60404186987cc22a2", kill_on_drop: false }`
[INFO] [stdout] 42f0afdc3892273fedc796684ec5bc913e888b36465159e60404186987cc22a2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c429288bc1741ccb5e2c0ddbf62496a70ec2ada0e46cfb7bec42a42526fdd02d
[INFO] running `Command { std: "docker" "start" "-a" "c429288bc1741ccb5e2c0ddbf62496a70ec2ada0e46cfb7bec42a42526fdd02d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling cc v1.2.19
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling clap_builder v4.5.37
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling core_affinity v0.8.3
[INFO] [stderr]    Compiling nanorand v0.7.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling libdeflate-sys v1.23.1
[INFO] [stderr]    Compiling libz-ng-sys v1.1.22
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling clap v4.5.37
[INFO] [stderr]    Compiling libdeflater v1.23.1
[INFO] [stderr]    Compiling flate2 v1.1.1
[INFO] [stderr]    Compiling gzp v1.0.1
[INFO] [stderr]    Compiling nucgen v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.95s
[INFO] running `Command { std: "docker" "inspect" "c429288bc1741ccb5e2c0ddbf62496a70ec2ada0e46cfb7bec42a42526fdd02d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c429288bc1741ccb5e2c0ddbf62496a70ec2ada0e46cfb7bec42a42526fdd02d", kill_on_drop: false }`
[INFO] [stdout] c429288bc1741ccb5e2c0ddbf62496a70ec2ada0e46cfb7bec42a42526fdd02d
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0311c73a76ad359b4a9ece95893cb8fad7cd995893318c1e766d949bb4a3373
[INFO] running `Command { std: "docker" "start" "-a" "a0311c73a76ad359b4a9ece95893cb8fad7cd995893318c1e766d949bb4a3373", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling buffer-redux v1.0.2
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling seq_io v0.3.4
[INFO] [stderr]    Compiling nucgen v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "a0311c73a76ad359b4a9ece95893cb8fad7cd995893318c1e766d949bb4a3373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0311c73a76ad359b4a9ece95893cb8fad7cd995893318c1e766d949bb4a3373", kill_on_drop: false }`
[INFO] [stdout] a0311c73a76ad359b4a9ece95893cb8fad7cd995893318c1e766d949bb4a3373
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 84ac990af72492e43bcf8120ffc424bc59ec104fb8ed176d59611bdfa3f44bd3
[INFO] running `Command { std: "docker" "start" "-a" "84ac990af72492e43bcf8120ffc424bc59ec104fb8ed176d59611bdfa3f44bd3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nucgen-562dd5aa240f9710)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test testing::test_write_fasta ... ok
[INFO] [stdout] test testing::test_write_fastq ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nucgen-35386a7577360b7d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nucgen
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "84ac990af72492e43bcf8120ffc424bc59ec104fb8ed176d59611bdfa3f44bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ac990af72492e43bcf8120ffc424bc59ec104fb8ed176d59611bdfa3f44bd3", kill_on_drop: false }`
[INFO] [stdout] 84ac990af72492e43bcf8120ffc424bc59ec104fb8ed176d59611bdfa3f44bd3