[INFO] fetching crate rmatrix 0.2.0...
[INFO] testing rmatrix-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rmatrix 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rmatrix 0.2.0
[INFO] finished tweaking crates.io crate rmatrix 0.2.0
[INFO] tweaked toml for crates.io crate rmatrix 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmatrix 0.2.0 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 rmatrix 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2a1ad5288aefa8526892e2d1a5b2714841a974bf8436532cccf542d23961b37e
[INFO] running `Command { std: "docker" "start" "-a" "2a1ad5288aefa8526892e2d1a5b2714841a974bf8436532cccf542d23961b37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a1ad5288aefa8526892e2d1a5b2714841a974bf8436532cccf542d23961b37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a1ad5288aefa8526892e2d1a5b2714841a974bf8436532cccf542d23961b37e", kill_on_drop: false }`
[INFO] [stdout] 2a1ad5288aefa8526892e2d1a5b2714841a974bf8436532cccf542d23961b37e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 631bc1dd7b1b0c00dc811bbdaa02d20a4ebfe021dd7d12265611fa83df34026f
[INFO] running `Command { std: "docker" "start" "-a" "631bc1dd7b1b0c00dc811bbdaa02d20a4ebfe021dd7d12265611fa83df34026f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling prettyplease v0.2.31
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling deranged v0.4.1
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling directories v6.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.0
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling clap v4.5.35
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling bon-macros v3.5.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling bon v3.5.1
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling tracing-serde v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling serde_plain v1.0.2
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling rmatrix v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.18s
[INFO] running `Command { std: "docker" "inspect" "631bc1dd7b1b0c00dc811bbdaa02d20a4ebfe021dd7d12265611fa83df34026f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "631bc1dd7b1b0c00dc811bbdaa02d20a4ebfe021dd7d12265611fa83df34026f", kill_on_drop: false }`
[INFO] [stdout] 631bc1dd7b1b0c00dc811bbdaa02d20a4ebfe021dd7d12265611fa83df34026f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db30da247e6865d5289ac11a92130ef0ee7f846ea51e53becfcd467d638e01f5
[INFO] running `Command { std: "docker" "start" "-a" "db30da247e6865d5289ac11a92130ef0ee7f846ea51e53becfcd467d638e01f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rmatrix v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "db30da247e6865d5289ac11a92130ef0ee7f846ea51e53becfcd467d638e01f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db30da247e6865d5289ac11a92130ef0ee7f846ea51e53becfcd467d638e01f5", kill_on_drop: false }`
[INFO] [stdout] db30da247e6865d5289ac11a92130ef0ee7f846ea51e53becfcd467d638e01f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9348919e76f76ee24be1cb091972c1ea29e88176e2e2981a1478c5164c39b851
[INFO] running `Command { std: "docker" "start" "-a" "9348919e76f76ee24be1cb091972c1ea29e88176e2e2981a1478c5164c39b851", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rmatrix-ee16dca82f10c4c9)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::sequence::test_starts_above_the_matrix ... ok
[INFO] [stdout] test tests::sequence::test_only_last_visible_char_is_head ... ok
[INFO] [stdout] test tests::sequence::test_has_no_chars_when_above_the_matrix ... ok
[INFO] [stdout] test tests::sequence::test_samples_correct_number_of_chars ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rmatrix-8307796ed87d4856)
[INFO] [stdout] test tests::column::test_sequences_never_overlap ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.63s
[INFO] [stdout] 
[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 rmatrix
[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] running `Command { std: "docker" "inspect" "9348919e76f76ee24be1cb091972c1ea29e88176e2e2981a1478c5164c39b851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9348919e76f76ee24be1cb091972c1ea29e88176e2e2981a1478c5164c39b851", kill_on_drop: false }`
[INFO] [stdout] 9348919e76f76ee24be1cb091972c1ea29e88176e2e2981a1478c5164c39b851