[INFO] fetching crate disjoint-sets 0.4.2... [INFO] testing disjoint-sets-0.4.2 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate disjoint-sets 0.4.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate disjoint-sets 0.4.2 [INFO] finished tweaking crates.io crate disjoint-sets 0.4.2 [INFO] tweaked toml for crates.io crate disjoint-sets 0.4.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate disjoint-sets 0.4.2 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 11 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0ec86a5df0640a13a264d2e39347edae2626408a4fb949ece6a5f3e45e353a5b [INFO] running `Command { std: "docker" "start" "-a" "0ec86a5df0640a13a264d2e39347edae2626408a4fb949ece6a5f3e45e353a5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ec86a5df0640a13a264d2e39347edae2626408a4fb949ece6a5f3e45e353a5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ec86a5df0640a13a264d2e39347edae2626408a4fb949ece6a5f3e45e353a5b", kill_on_drop: false }` [INFO] [stdout] 0ec86a5df0640a13a264d2e39347edae2626408a4fb949ece6a5f3e45e353a5b [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3ee2cf886cd930db4ef6c9fda92e1bd3125abce705e6c87b55050c1c909b0aa1 [INFO] running `Command { std: "docker" "start" "-a" "3ee2cf886cd930db4ef6c9fda92e1bd3125abce705e6c87b55050c1c909b0aa1", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling disjoint-sets v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/async.rs:173:28 [INFO] [stdout] | [INFO] [stdout] 173 | self.0[element].id.compare_and_swap(old_parent, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/tree.rs:465:17 [INFO] [stdout] | [INFO] [stdout] 465 | / mem::replace(&mut *guard_parent, Root { [INFO] [stdout] 466 | | data: new_data, [INFO] [stdout] 467 | | rank: rank, [INFO] [stdout] 468 | | }); [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [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] 465 | let _ = mem::replace(&mut *guard_parent, Root { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "3ee2cf886cd930db4ef6c9fda92e1bd3125abce705e6c87b55050c1c909b0aa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ee2cf886cd930db4ef6c9fda92e1bd3125abce705e6c87b55050c1c909b0aa1", kill_on_drop: false }` [INFO] [stdout] 3ee2cf886cd930db4ef6c9fda92e1bd3125abce705e6c87b55050c1c909b0aa1 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 81509afcbd1fea0c8100606d8528f3ed8349793d8b8d0b541621311def67ee4a [INFO] running `Command { std: "docker" "start" "-a" "81509afcbd1fea0c8100606d8528f3ed8349793d8b8d0b541621311def67ee4a", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/async.rs:173:28 [INFO] [stdout] | [INFO] [stdout] 173 | self.0[element].id.compare_and_swap(old_parent, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/tree.rs:465:17 [INFO] [stdout] | [INFO] [stdout] 465 | / mem::replace(&mut *guard_parent, Root { [INFO] [stdout] 466 | | data: new_data, [INFO] [stdout] 467 | | rank: rank, [INFO] [stdout] 468 | | }); [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [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] 465 | let _ = mem::replace(&mut *guard_parent, Root { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling disjoint-sets v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/tree.rs:668:17 [INFO] [stdout] | [INFO] [stdout] 668 | try!(self.unify(v1, v2)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/async.rs:173:28 [INFO] [stdout] | [INFO] [stdout] 173 | self.0[element].id.compare_and_swap(old_parent, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/tree.rs:465:17 [INFO] [stdout] | [INFO] [stdout] 465 | / mem::replace(&mut *guard_parent, Root { [INFO] [stdout] 466 | | data: new_data, [INFO] [stdout] 467 | | rank: rank, [INFO] [stdout] 468 | | }); [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [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] 465 | let _ = mem::replace(&mut *guard_parent, Root { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s [INFO] running `Command { std: "docker" "inspect" "81509afcbd1fea0c8100606d8528f3ed8349793d8b8d0b541621311def67ee4a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81509afcbd1fea0c8100606d8528f3ed8349793d8b8d0b541621311def67ee4a", kill_on_drop: false }` [INFO] [stdout] 81509afcbd1fea0c8100606d8528f3ed8349793d8b8d0b541621311def67ee4a [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 397c85df2e0fab41aa5b4028193c5d92d8039b210bc512369478e3f41b662239 [INFO] running `Command { std: "docker" "start" "-a" "397c85df2e0fab41aa5b4028193c5d92d8039b210bc512369478e3f41b662239", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stderr] --> src/async.rs:173:28 [INFO] [stderr] | [INFO] [stderr] 173 | self.0[element].id.compare_and_swap(old_parent, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/tree.rs:465:17 [INFO] [stderr] | [INFO] [stderr] 465 | / mem::replace(&mut *guard_parent, Root { [INFO] [stderr] 466 | | data: new_data, [INFO] [stderr] 467 | | rank: rank, [INFO] [stderr] 468 | | }); [INFO] [stderr] | |__________________^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [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] 465 | let _ = mem::replace(&mut *guard_parent, Root { [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `disjoint-sets` (lib) generated 2 warnings [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/tree.rs:668:17 [INFO] [stderr] | [INFO] [stderr] 668 | try!(self.unify(v1, v2)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stderr] --> src/async.rs:173:28 [INFO] [stderr] | [INFO] [stderr] 173 | self.0[element].id.compare_and_swap(old_parent, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `disjoint-sets` (lib test) generated 3 warnings (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/disjoint_sets-559fb54a3626dabc) [INFO] [stdout] [INFO] [stdout] running 14 tests [INFO] [stdout] test array::tests::unions ... ok [INFO] [stdout] test async::tests::len ... ok [INFO] [stdout] test async::tests::to_vec ... ok [INFO] [stdout] test tree::tests::unify_deeper ... ok [INFO] [stdout] test tree::tests::unify_flat ... ok [INFO] [stdout] test async::tests::union ... ok [INFO] [stdout] test async::tests::unions ... ok [INFO] [stdout] test tree::tests::union ... ok [INFO] [stdout] test tree::tests::unions ... ok [INFO] [stdout] test array::tests::len ... ok [INFO] [stdout] test async::tests::changed ... ok [INFO] [stdout] test array::tests::union ... ok [INFO] [stdout] test tree::tests::unify_symbols ... ok [INFO] [stdout] test tree::tests::unify_vars ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s [INFO] [stdout] [INFO] [stderr] Doc-tests disjoint_sets [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - (line 27) ... ok [INFO] [stdout] test src/tree.rs - tree::UnionFindNode (line 25) ... ok [INFO] [stdout] test src/lib.rs - (line 37) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.71s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "397c85df2e0fab41aa5b4028193c5d92d8039b210bc512369478e3f41b662239", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "397c85df2e0fab41aa5b4028193c5d92d8039b210bc512369478e3f41b662239", kill_on_drop: false }` [INFO] [stdout] 397c85df2e0fab41aa5b4028193c5d92d8039b210bc512369478e3f41b662239