[INFO] cloning repository https://github.com/timboudreau/treiber_stack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timboudreau/treiber_stack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimboudreau%2Ftreiber_stack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimboudreau%2Ftreiber_stack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a378b89fb0d44e89abc11c5e4b342540bbd2726c
[INFO] testing timboudreau/treiber_stack against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimboudreau%2Ftreiber_stack" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/timboudreau/treiber_stack
[INFO] finished tweaking git repo https://github.com/timboudreau/treiber_stack
[INFO] tweaked toml for git repo https://github.com/timboudreau/treiber_stack written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/timboudreau/treiber_stack on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/timboudreau/treiber_stack 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41bac86b443d953be625301b13dbba3af3aa7c023774f31e277111733cfac96e
[INFO] running `Command { std: "docker" "start" "-a" "41bac86b443d953be625301b13dbba3af3aa7c023774f31e277111733cfac96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41bac86b443d953be625301b13dbba3af3aa7c023774f31e277111733cfac96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41bac86b443d953be625301b13dbba3af3aa7c023774f31e277111733cfac96e", kill_on_drop: false }`
[INFO] [stdout] 41bac86b443d953be625301b13dbba3af3aa7c023774f31e277111733cfac96e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63ceab6202568ea1a11248ba6e4cadbfbd56cf9061dbc4e73f29117bd980b1cb
[INFO] running `Command { std: "docker" "start" "-a" "63ceab6202568ea1a11248ba6e4cadbfbd56cf9061dbc4e73f29117bd980b1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-swap v1.7.1
[INFO] [stderr]    Compiling treiber_stack v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "63ceab6202568ea1a11248ba6e4cadbfbd56cf9061dbc4e73f29117bd980b1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ceab6202568ea1a11248ba6e4cadbfbd56cf9061dbc4e73f29117bd980b1cb", kill_on_drop: false }`
[INFO] [stdout] 63ceab6202568ea1a11248ba6e4cadbfbd56cf9061dbc4e73f29117bd980b1cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65356b9bd3f97a57e4e83858fb8a22274e41c21e42271ebf7e40e6fb0e910b68
[INFO] running `Command { std: "docker" "start" "-a" "65356b9bd3f97a57e4e83858fb8a22274e41c21e42271ebf7e40e6fb0e910b68", kill_on_drop: false }`
[INFO] [stderr]    Compiling treiber_stack v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:859:13
[INFO] [stdout]     |
[INFO] [stdout] 859 |             h.join();
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 859 |             let _ = h.join();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "65356b9bd3f97a57e4e83858fb8a22274e41c21e42271ebf7e40e6fb0e910b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65356b9bd3f97a57e4e83858fb8a22274e41c21e42271ebf7e40e6fb0e910b68", kill_on_drop: false }`
[INFO] [stdout] 65356b9bd3f97a57e4e83858fb8a22274e41c21e42271ebf7e40e6fb0e910b68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52a4f938394611e07254967ef2bc2420cd7c1842d0ce267336067cd244232f3a
[INFO] running `Command { std: "docker" "start" "-a" "52a4f938394611e07254967ef2bc2420cd7c1842d0ce267336067cd244232f3a", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:859:13
[INFO] [stderr]     |
[INFO] [stderr] 859 |             h.join();
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 859 |             let _ = h.join();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `treiber_stack` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/treiber_stack-7d2e5efe6db3936f)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test treiber_stack_tests::test_pop_fn ... ok
[INFO] [stdout] test treiber_stack_tests::test_from_and_into ... ok
[INFO] [stdout] test treiber_stack_tests::test_pop_fn_filter ... ok
[INFO] [stdout] test treiber_stack_tests::test_simple ... ok
[INFO] [stdout] test treiber_stack_tests::test_threaded ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'treiber_stack_tests::test_batches' (24) has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow, aborting
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/treiber_stack-7d2e5efe6db3936f` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "52a4f938394611e07254967ef2bc2420cd7c1842d0ce267336067cd244232f3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a4f938394611e07254967ef2bc2420cd7c1842d0ce267336067cd244232f3a", kill_on_drop: false }`
[INFO] [stdout] 52a4f938394611e07254967ef2bc2420cd7c1842d0ce267336067cd244232f3a
