[INFO] fetching crate ringstack 0.3.0...
[INFO] testing ringstack-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ringstack 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ringstack 0.3.0
[INFO] finished tweaking crates.io crate ringstack 0.3.0
[INFO] tweaked toml for crates.io crate ringstack 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ringstack 0.3.0 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ba402aa872d3d890f93472932737476f76d4427d4fea5774aec113477b9c5bc9
[INFO] running `Command { std: "docker" "start" "-a" "ba402aa872d3d890f93472932737476f76d4427d4fea5774aec113477b9c5bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba402aa872d3d890f93472932737476f76d4427d4fea5774aec113477b9c5bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba402aa872d3d890f93472932737476f76d4427d4fea5774aec113477b9c5bc9", kill_on_drop: false }`
[INFO] [stdout] ba402aa872d3d890f93472932737476f76d4427d4fea5774aec113477b9c5bc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 537aff578e9434e886b555e0498d99cb9b6021c7b2781d3a3bfa7654ff2703d4
[INFO] running `Command { std: "docker" "start" "-a" "537aff578e9434e886b555e0498d99cb9b6021c7b2781d3a3bfa7654ff2703d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "537aff578e9434e886b555e0498d99cb9b6021c7b2781d3a3bfa7654ff2703d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "537aff578e9434e886b555e0498d99cb9b6021c7b2781d3a3bfa7654ff2703d4", kill_on_drop: false }`
[INFO] [stdout] 537aff578e9434e886b555e0498d99cb9b6021c7b2781d3a3bfa7654ff2703d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 517b03cb1d0de2c761aa48190ac422fa42ee2069aed970b40b2007dbe17719d2
[INFO] running `Command { std: "docker" "start" "-a" "517b03cb1d0de2c761aa48190ac422fa42ee2069aed970b40b2007dbe17719d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "517b03cb1d0de2c761aa48190ac422fa42ee2069aed970b40b2007dbe17719d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "517b03cb1d0de2c761aa48190ac422fa42ee2069aed970b40b2007dbe17719d2", kill_on_drop: false }`
[INFO] [stdout] 517b03cb1d0de2c761aa48190ac422fa42ee2069aed970b40b2007dbe17719d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 8223984e0b5597736733df0d0861d56625af157cf1dec62a5a59ec6655a756dd
[INFO] running `Command { std: "docker" "start" "-a" "8223984e0b5597736733df0d0861d56625af157cf1dec62a5a59ec6655a756dd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ringstack-d03ce95af0143de2)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test t::test_internal_representaions_and_get_index ... ok
[INFO] [stdout] test t::test_iter_mut ... ok
[INFO] [stdout] test t::test_multiple_times_of_push_and_pop ... ok
[INFO] [stdout] test t::test_iter ... ok
[INFO] [stdout] test t::test_index_access_check - should panic ... ok
[INFO] [stdout] test t::test_index_access - should panic ... ok
[INFO] [stdout] test t::test_index_mut_access - should panic ... ok
[INFO] [stderr]    Doc-tests ringstack
[INFO] [stdout] test t::test_clone ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8223984e0b5597736733df0d0861d56625af157cf1dec62a5a59ec6655a756dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8223984e0b5597736733df0d0861d56625af157cf1dec62a5a59ec6655a756dd", kill_on_drop: false }`
[INFO] [stdout] 8223984e0b5597736733df0d0861d56625af157cf1dec62a5a59ec6655a756dd