[INFO] fetching crate display_buffer 0.1.0...
[INFO] testing display_buffer-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate display_buffer 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate display_buffer 0.1.0
[INFO] finished tweaking crates.io crate display_buffer 0.1.0
[INFO] tweaked toml for crates.io crate display_buffer 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate display_buffer 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] abaeef9484caa16b7d0bb606718f756f30cf806346aabee2acb2a4091a8f264f
[INFO] running `Command { std: "docker" "start" "-a" "abaeef9484caa16b7d0bb606718f756f30cf806346aabee2acb2a4091a8f264f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abaeef9484caa16b7d0bb606718f756f30cf806346aabee2acb2a4091a8f264f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abaeef9484caa16b7d0bb606718f756f30cf806346aabee2acb2a4091a8f264f", kill_on_drop: false }`
[INFO] [stdout] abaeef9484caa16b7d0bb606718f756f30cf806346aabee2acb2a4091a8f264f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a55e8fe7c0718441674da58a0ba361d2fc72d9411e5176d30b511b8f963c97eb
[INFO] running `Command { std: "docker" "start" "-a" "a55e8fe7c0718441674da58a0ba361d2fc72d9411e5176d30b511b8f963c97eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling display_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "a55e8fe7c0718441674da58a0ba361d2fc72d9411e5176d30b511b8f963c97eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55e8fe7c0718441674da58a0ba361d2fc72d9411e5176d30b511b8f963c97eb", kill_on_drop: false }`
[INFO] [stdout] a55e8fe7c0718441674da58a0ba361d2fc72d9411e5176d30b511b8f963c97eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5460b3d6b1a3c6c23e2b55a98dc7f976914f6794edff3368aabdc31f62ddbc3b
[INFO] running `Command { std: "docker" "start" "-a" "5460b3d6b1a3c6c23e2b55a98dc7f976914f6794edff3368aabdc31f62ddbc3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling display_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "5460b3d6b1a3c6c23e2b55a98dc7f976914f6794edff3368aabdc31f62ddbc3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5460b3d6b1a3c6c23e2b55a98dc7f976914f6794edff3368aabdc31f62ddbc3b", kill_on_drop: false }`
[INFO] [stdout] 5460b3d6b1a3c6c23e2b55a98dc7f976914f6794edff3368aabdc31f62ddbc3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6a4c689efe7c23de96a1aec417b8e0126aee2f212de02941af49b327488aecc4
[INFO] running `Command { std: "docker" "start" "-a" "6a4c689efe7c23de96a1aec417b8e0126aee2f212de02941af49b327488aecc4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/display_buffer-728cb9f38cf21afe)
[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] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-7c66a074d9ed2f8c)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test write_1_byte_char ... ok
[INFO] [stdout] test write_2_byte_char ... ok
[INFO] [stdout] test write_3_byte_char ... ok
[INFO] [stdout] test write_4_byte_char ... ok
[INFO] [stdout] test write_char ... ok
[INFO] [stdout] test write_empty_str ... ok
[INFO] [stdout] test write_multiple_strs ... ok
[INFO] [stdout] test write_too_much ... ok
[INFO] [stderr]    Doc-tests display_buffer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - fmt (line 147) ... ok
[INFO] [stdout] test src/lib.rs - DisplayBuffer (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a4c689efe7c23de96a1aec417b8e0126aee2f212de02941af49b327488aecc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a4c689efe7c23de96a1aec417b8e0126aee2f212de02941af49b327488aecc4", kill_on_drop: false }`
[INFO] [stdout] 6a4c689efe7c23de96a1aec417b8e0126aee2f212de02941af49b327488aecc4