[INFO] fetching crate thread-tree 0.3.3...
[INFO] testing thread-tree-0.3.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate thread-tree 0.3.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate thread-tree 0.3.3
[INFO] finished tweaking crates.io crate thread-tree 0.3.3
[INFO] tweaked toml for crates.io crate thread-tree 0.3.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate thread-tree 0.3.3 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f4d883e7945fd7e36d0fbca1b67d8c84eccfb85e8a414fe872f1a1f3353efbe
[INFO] running `Command { std: "docker" "start" "-a" "2f4d883e7945fd7e36d0fbca1b67d8c84eccfb85e8a414fe872f1a1f3353efbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4d883e7945fd7e36d0fbca1b67d8c84eccfb85e8a414fe872f1a1f3353efbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4d883e7945fd7e36d0fbca1b67d8c84eccfb85e8a414fe872f1a1f3353efbe", kill_on_drop: false }`
[INFO] [stdout] 2f4d883e7945fd7e36d0fbca1b67d8c84eccfb85e8a414fe872f1a1f3353efbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85bb30c713457d3e906b0d6555ddfef9f3a5349ff3594aa3d910aab716679bd9
[INFO] running `Command { std: "docker" "start" "-a" "85bb30c713457d3e906b0d6555ddfef9f3a5349ff3594aa3d910aab716679bd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread-tree v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/job.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | #[derive(Copy, Clone, Debug, PartialEq, Eq)]
[INFO] [stdout]    |                              --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 91 |     execute_fn: unsafe fn(*const ()),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "85bb30c713457d3e906b0d6555ddfef9f3a5349ff3594aa3d910aab716679bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85bb30c713457d3e906b0d6555ddfef9f3a5349ff3594aa3d910aab716679bd9", kill_on_drop: false }`
[INFO] [stdout] 85bb30c713457d3e906b0d6555ddfef9f3a5349ff3594aa3d910aab716679bd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24dc9600a01cbc07223d87118c4f22d50fa29009cc69f0d66b5e11499d023bd0
[INFO] running `Command { std: "docker" "start" "-a" "24dc9600a01cbc07223d87118c4f22d50fa29009cc69f0d66b5e11499d023bd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/job.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | #[derive(Copy, Clone, Debug, PartialEq, Eq)]
[INFO] [stdout]    |                              --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 91 |     execute_fn: unsafe fn(*const ()),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread-tree v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/job.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | #[derive(Copy, Clone, Debug, PartialEq, Eq)]
[INFO] [stdout]    |                              --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 91 |     execute_fn: unsafe fn(*const ()),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "24dc9600a01cbc07223d87118c4f22d50fa29009cc69f0d66b5e11499d023bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24dc9600a01cbc07223d87118c4f22d50fa29009cc69f0d66b5e11499d023bd0", kill_on_drop: false }`
[INFO] [stdout] 24dc9600a01cbc07223d87118c4f22d50fa29009cc69f0d66b5e11499d023bd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ba31387a6af1036b44e87476b6cf08236787054550a28898d0b42077e3adf80f
[INFO] running `Command { std: "docker" "start" "-a" "ba31387a6af1036b44e87476b6cf08236787054550a28898d0b42077e3adf80f", kill_on_drop: false }`
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]   --> src/job.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | #[derive(Copy, Clone, Debug, PartialEq, Eq)]
[INFO] [stderr]    |                              --------- in this derive macro expansion
[INFO] [stderr] ...
[INFO] [stderr] 91 |     execute_fn: unsafe fn(*const ()),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the address of the same function can vary between different codegen units
[INFO] [stderr]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `thread-tree` (lib) generated 1 warning
[INFO] [stderr] warning: `thread-tree` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/thread_tree-c135ca924f9d5144)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test thread_tree_tests::build_level_2 ... ok
[INFO] [stdout] test thread_tree_tests::new_level_1 ... ok
[INFO] [stdout] test thread_tree_tests::stub ... ok
[INFO] [stdout] test thread_tree_tests::panic_a - should panic ... ok
[INFO] [stdout] test thread_tree_tests::panic_b - should panic ... ok
[INFO] [stdout] test thread_tree_tests::panic_both_bottom - should panic ... ok
[INFO] [stdout] test thread_tree_tests::deep_tree ... ok
[INFO] [stdout] test thread_tree_tests::panic_both_in_threads - should panic ... ok
[INFO] [stdout] test thread_tree_tests::on_panic_a_wait_for_b ... ok
[INFO] [stderr]    Doc-tests thread_tree
[INFO] [stdout] test thread_tree_tests::overload_2_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ThreadTree::top (line 107) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba31387a6af1036b44e87476b6cf08236787054550a28898d0b42077e3adf80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba31387a6af1036b44e87476b6cf08236787054550a28898d0b42077e3adf80f", kill_on_drop: false }`
[INFO] [stdout] ba31387a6af1036b44e87476b6cf08236787054550a28898d0b42077e3adf80f
