[INFO] fetching crate stacking 0.2.5... [INFO] testing stacking-0.2.5 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate stacking 0.2.5 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate stacking 0.2.5 [INFO] finished tweaking crates.io crate stacking 0.2.5 [INFO] tweaked toml for crates.io crate stacking 0.2.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate stacking 0.2.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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] c2c574854524ff03805d670eb66a9040a8f5b58e2816ce64d059efa35e765c28 [INFO] running `Command { std: "docker" "start" "-a" "c2c574854524ff03805d670eb66a9040a8f5b58e2816ce64d059efa35e765c28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c2c574854524ff03805d670eb66a9040a8f5b58e2816ce64d059efa35e765c28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2c574854524ff03805d670eb66a9040a8f5b58e2816ce64d059efa35e765c28", kill_on_drop: false }` [INFO] [stdout] c2c574854524ff03805d670eb66a9040a8f5b58e2816ce64d059efa35e765c28 [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] 408a70ac385e3bf848a85a93224c28ba3d5ab33577031934a0a3a60cf22ad9ea [INFO] running `Command { std: "docker" "start" "-a" "408a70ac385e3bf848a85a93224c28ba3d5ab33577031934a0a3a60cf22ad9ea", kill_on_drop: false }` [INFO] [stderr] Compiling stacking v0.2.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s [INFO] running `Command { std: "docker" "inspect" "408a70ac385e3bf848a85a93224c28ba3d5ab33577031934a0a3a60cf22ad9ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "408a70ac385e3bf848a85a93224c28ba3d5ab33577031934a0a3a60cf22ad9ea", kill_on_drop: false }` [INFO] [stdout] 408a70ac385e3bf848a85a93224c28ba3d5ab33577031934a0a3a60cf22ad9ea [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] dd4a83767bad01e2a56bb62b6c01a74204c9a85f72b0389d0cdf4afb4f52e2ac [INFO] running `Command { std: "docker" "start" "-a" "dd4a83767bad01e2a56bb62b6c01a74204c9a85f72b0389d0cdf4afb4f52e2ac", kill_on_drop: false }` [INFO] [stderr] Compiling stacking v0.2.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s [INFO] running `Command { std: "docker" "inspect" "dd4a83767bad01e2a56bb62b6c01a74204c9a85f72b0389d0cdf4afb4f52e2ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dd4a83767bad01e2a56bb62b6c01a74204c9a85f72b0389d0cdf4afb4f52e2ac", kill_on_drop: false }` [INFO] [stdout] dd4a83767bad01e2a56bb62b6c01a74204c9a85f72b0389d0cdf4afb4f52e2ac [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] 55a8648206f4c9cda962fa2c0ee98ea616195053ae08858d5fcafad76ed631b2 [INFO] running `Command { std: "docker" "start" "-a" "55a8648206f4c9cda962fa2c0ee98ea616195053ae08858d5fcafad76ed631b2", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stacking-f765909b0a1f3f81) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::empty_stack_pop ... ok [INFO] [stdout] test tests::queue_len ... ok [INFO] [stdout] test tests::queue_push_pop ... ok [INFO] [stdout] test tests::stack_len ... ok [INFO] [stdout] test tests::stack_push_pop ... ok [INFO] [stdout] test tests::empty_queue_pop ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests stacking [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test src/lib.rs - (line 10) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Queue::push (line 229) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Stack::len (line 186) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Queue::len (line 294) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Stack::push (line 126) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Queue::pop (line 256) ... ok [INFO] [stdout] test src/lib.rs - (line 28) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Stack::pop (line 147) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "55a8648206f4c9cda962fa2c0ee98ea616195053ae08858d5fcafad76ed631b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55a8648206f4c9cda962fa2c0ee98ea616195053ae08858d5fcafad76ed631b2", kill_on_drop: false }` [INFO] [stdout] 55a8648206f4c9cda962fa2c0ee98ea616195053ae08858d5fcafad76ed631b2