[INFO] fetching crate stackstack 0.3.0...
[INFO] testing stackstack-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate stackstack 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate stackstack 0.3.0
[INFO] finished tweaking crates.io crate stackstack 0.3.0
[INFO] tweaked toml for crates.io crate stackstack 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stackstack 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.13.0 (available: v0.14.0)
[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] de693a7d7b8234d637b0ff540be98dc2710ca7ebfe18ca0b88c03a28aed98549
[INFO] running `Command { std: "docker" "start" "-a" "de693a7d7b8234d637b0ff540be98dc2710ca7ebfe18ca0b88c03a28aed98549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de693a7d7b8234d637b0ff540be98dc2710ca7ebfe18ca0b88c03a28aed98549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de693a7d7b8234d637b0ff540be98dc2710ca7ebfe18ca0b88c03a28aed98549", kill_on_drop: false }`
[INFO] [stdout] de693a7d7b8234d637b0ff540be98dc2710ca7ebfe18ca0b88c03a28aed98549
[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] d7c3cf8e14312504dff91875699187036fdbd41a329138ac2f04c4eb2438f6be
[INFO] running `Command { std: "docker" "start" "-a" "d7c3cf8e14312504dff91875699187036fdbd41a329138ac2f04c4eb2438f6be", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "d7c3cf8e14312504dff91875699187036fdbd41a329138ac2f04c4eb2438f6be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7c3cf8e14312504dff91875699187036fdbd41a329138ac2f04c4eb2438f6be", kill_on_drop: false }`
[INFO] [stdout] d7c3cf8e14312504dff91875699187036fdbd41a329138ac2f04c4eb2438f6be
[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] 0471e4356fa348176193e1995a0e70fd3f4d18706b5c7959fb0ec9bfd429181d
[INFO] running `Command { std: "docker" "start" "-a" "0471e4356fa348176193e1995a0e70fd3f4d18706b5c7959fb0ec9bfd429181d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling stackstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "0471e4356fa348176193e1995a0e70fd3f4d18706b5c7959fb0ec9bfd429181d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0471e4356fa348176193e1995a0e70fd3f4d18706b5c7959fb0ec9bfd429181d", kill_on_drop: false }`
[INFO] [stdout] 0471e4356fa348176193e1995a0e70fd3f4d18706b5c7959fb0ec9bfd429181d
[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] 8db83ac48bb9043639fb12981ea4ceafe48a5ebb4991a2de31e5c265a611a34b
[INFO] running `Command { std: "docker" "start" "-a" "8db83ac48bb9043639fb12981ea4ceafe48a5ebb4991a2de31e5c265a611a34b", 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/stackstack-98a205ef6c460cdb)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::rev ... ok
[INFO] [stdout] test tests::get ... ok
[INFO] [stderr]    Doc-tests stackstack
[INFO] [stdout] test tests::on_chained ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::with (line 338) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::get (line 235) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::of (line 182) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::new (line 171) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::last_mut (line 284) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::first (line 262) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::pushed (line 198) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::split_last (line 297) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::with_all (line 353) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::into_split_last (line 310) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::len (line 215) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::iter (line 324) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::is_empty (line 227) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::chained (line 378) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::last (line 271) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/lib.rs - stack (line 456) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.85s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8db83ac48bb9043639fb12981ea4ceafe48a5ebb4991a2de31e5c265a611a34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db83ac48bb9043639fb12981ea4ceafe48a5ebb4991a2de31e5c265a611a34b", kill_on_drop: false }`
[INFO] [stdout] 8db83ac48bb9043639fb12981ea4ceafe48a5ebb4991a2de31e5c265a611a34b