[INFO] fetching crate sws-tree 1.0.0...
[INFO] testing sws-tree-1.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate sws-tree 1.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate sws-tree 1.0.0
[INFO] finished tweaking crates.io crate sws-tree 1.0.0
[INFO] tweaked toml for crates.io crate sws-tree 1.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sws-tree 1.0.0 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 2 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 38e8b582852fdf00dd7399cd9bd5a3442b654e9729216ee1dc3f79196d1e965a
[INFO] running `Command { std: "docker" "start" "-a" "38e8b582852fdf00dd7399cd9bd5a3442b654e9729216ee1dc3f79196d1e965a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38e8b582852fdf00dd7399cd9bd5a3442b654e9729216ee1dc3f79196d1e965a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38e8b582852fdf00dd7399cd9bd5a3442b654e9729216ee1dc3f79196d1e965a", kill_on_drop: false }`
[INFO] [stdout] 38e8b582852fdf00dd7399cd9bd5a3442b654e9729216ee1dc3f79196d1e965a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a91a70c71c6615dc60014c778c4fef0094737f67aae4d6cc88b491e75241be00
[INFO] running `Command { std: "docker" "start" "-a" "a91a70c71c6615dc60014c778c4fef0094737f67aae4d6cc88b491e75241be00", kill_on_drop: false }`
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]    Compiling sws-tree v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iter.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn nodes(&self) -> Nodes<T> {
[INFO] [stdout]    |                  ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn nodes(&self) -> Nodes<'_, T> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "a91a70c71c6615dc60014c778c4fef0094737f67aae4d6cc88b491e75241be00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a91a70c71c6615dc60014c778c4fef0094737f67aae4d6cc88b491e75241be00", kill_on_drop: false }`
[INFO] [stdout] a91a70c71c6615dc60014c778c4fef0094737f67aae4d6cc88b491e75241be00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c1cce5036ba55623b144b5ac95bdee40141d8bcf052d567699ee5112929d0f32
[INFO] running `Command { std: "docker" "start" "-a" "c1cce5036ba55623b144b5ac95bdee40141d8bcf052d567699ee5112929d0f32", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iter.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn nodes(&self) -> Nodes<T> {
[INFO] [stdout]    |                  ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn nodes(&self) -> Nodes<'_, T> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sws-tree v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iter.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn nodes(&self) -> Nodes<T> {
[INFO] [stdout]    |                  ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn nodes(&self) -> Nodes<'_, T> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "c1cce5036ba55623b144b5ac95bdee40141d8bcf052d567699ee5112929d0f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1cce5036ba55623b144b5ac95bdee40141d8bcf052d567699ee5112929d0f32", kill_on_drop: false }`
[INFO] [stdout] c1cce5036ba55623b144b5ac95bdee40141d8bcf052d567699ee5112929d0f32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f92126e17f38570d18fcea4a32b1f0be5ba486aabbba1132520b4fcd1c354238
[INFO] running `Command { std: "docker" "start" "-a" "f92126e17f38570d18fcea4a32b1f0be5ba486aabbba1132520b4fcd1c354238", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/iter.rs:54:18
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn nodes(&self) -> Nodes<T> {
[INFO] [stderr]    |                  ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn nodes(&self) -> Nodes<'_, T> {
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: `sws-tree` (lib) generated 1 warning (run `cargo fix --lib -p sws-tree` to apply 1 suggestion)
[INFO] [stderr] warning: `sws-tree` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sws_tree-d95621e6854d13d3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/iter.rs (/opt/rustwide/target/debug/deps/iter-ffe6836cb11e3d58)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test iter_children ... ok
[INFO] [stdout] test iter_last_children ... ok
[INFO] [stdout] test iter_descendants ... ok
[INFO] [stdout] test iter_nodes ... ok
[INFO] [stdout] test iter_ancestors ... ok
[INFO] [stdout] test iter_next_siblings ... ok
[INFO] [stdout] test iter_prev_siblings ... ok
[INFO] [stdout] test iter_values ... ok
[INFO] [stdout] test iter_values_mut ... ok
[INFO] [stdout] test iter_traverse ... ok
[INFO] [stdout] test iter_first_children ... ok
[INFO] [stdout] test iter_children_rev ... ok
[INFO] [stdout] test try_into_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/node.rs (/opt/rustwide/target/debug/deps/node-23715d0b10418e0c)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test detach ... ok
[INFO] [stdout] test insert_after_first ... ok
[INFO] [stdout] test append_3 ... ok
[INFO] [stdout] test insert_after ... ok
[INFO] [stdout] test node_value ... ok
[INFO] [stdout] test node_first_child ... ok
[INFO] [stdout] test prepend_1 ... ok
[INFO] [stdout] test append_1 ... ok
[INFO] [stdout] test node_has_children ... ok
[INFO] [stdout] test node_has_siblings ... ok
[INFO] [stdout] test node_next_sibling ... ok
[INFO] [stdout] test node_parent ... ok
[INFO] [stdout] test node_prev_sibling ... ok
[INFO] [stdout] test insert_before ... ok
[INFO] [stdout] test reparent_from_id_append ... ok
[INFO] [stdout] test insert_before_first ... ok
[INFO] [stdout] test prepend_2 ... ok
[INFO] [stdout] test append_2 ... ok
[INFO] [stdout] test prepend_3 ... ok
[INFO] [stdout] test node_last_child ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tree.rs (/opt/rustwide/target/debug/deps/tree-9928f3d38d0c2f8f)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test macro_nested_leaves ... ok
[INFO] [stdout] test macro_leaves ... ok
[INFO] [stdout] test macro_mixed ... ok
[INFO] [stdout] test tree_new ... ok
[INFO] [stdout] test macro_nested_nested ... ok
[INFO] [stdout] test tree_neq ... ok
[INFO] [stdout] test tree_root ... ok
[INFO] [stdout] test macro_single_child_comma ... ok
[INFO] [stdout] test tree_eq ... ok
[INFO] [stderr]    Doc-tests sws_tree
[INFO] [stdout] test tree_get ... ok
[INFO] [stdout] test macro_single_child ... ok
[INFO] [stdout] test macro_nested_single_child ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - tree (line 526) ... ok
[INFO] [stdout] test src/lib.rs - tree (line 533) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.71s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f92126e17f38570d18fcea4a32b1f0be5ba486aabbba1132520b4fcd1c354238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92126e17f38570d18fcea4a32b1f0be5ba486aabbba1132520b4fcd1c354238", kill_on_drop: false }`
[INFO] [stdout] f92126e17f38570d18fcea4a32b1f0be5ba486aabbba1132520b4fcd1c354238
