[INFO] fetching crate skip-list 0.1.3... [INFO] testing skip-list-0.1.3 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate skip-list 0.1.3 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate skip-list 0.1.3 [INFO] finished tweaking crates.io crate skip-list 0.1.3 [INFO] tweaked toml for crates.io crate skip-list 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate skip-list 0.1.3 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 14 packages to latest compatible versions [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.2) [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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 11fb7eaaea219f6f791033aecaff2b9c8d56d06155490eb671bded9410dc9810 [INFO] running `Command { std: "docker" "start" "-a" "11fb7eaaea219f6f791033aecaff2b9c8d56d06155490eb671bded9410dc9810", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "11fb7eaaea219f6f791033aecaff2b9c8d56d06155490eb671bded9410dc9810", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11fb7eaaea219f6f791033aecaff2b9c8d56d06155490eb671bded9410dc9810", kill_on_drop: false }` [INFO] [stdout] 11fb7eaaea219f6f791033aecaff2b9c8d56d06155490eb671bded9410dc9810 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b7c75664a4776d8f9d5fe3fd74ff12be07db6190569b73e0ad386bc5340d022a [INFO] running `Command { std: "docker" "start" "-a" "b7c75664a4776d8f9d5fe3fd74ff12be07db6190569b73e0ad386bc5340d022a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling skip-list v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/lib.rs:498:13 [INFO] [stdout] | [INFO] [stdout] 498 | Box::from_raw(self.head.as_ptr()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [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] 498 | let _ = Box::from_raw(self.head.as_ptr()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.42s [INFO] running `Command { std: "docker" "inspect" "b7c75664a4776d8f9d5fe3fd74ff12be07db6190569b73e0ad386bc5340d022a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7c75664a4776d8f9d5fe3fd74ff12be07db6190569b73e0ad386bc5340d022a", kill_on_drop: false }` [INFO] [stdout] b7c75664a4776d8f9d5fe3fd74ff12be07db6190569b73e0ad386bc5340d022a [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dacac25a02d93cd3d472242e5a2bf8205b6109d14f8d7b84430b247e26e04c31 [INFO] running `Command { std: "docker" "start" "-a" "dacac25a02d93cd3d472242e5a2bf8205b6109d14f8d7b84430b247e26e04c31", kill_on_drop: false }` [INFO] [stderr] Compiling skip-list v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/lib.rs:498:13 [INFO] [stdout] | [INFO] [stdout] 498 | Box::from_raw(self.head.as_ptr()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [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] 498 | let _ = Box::from_raw(self.head.as_ptr()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/lib.rs:498:13 [INFO] [stdout] | [INFO] [stdout] 498 | Box::from_raw(self.head.as_ptr()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [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] 498 | let _ = Box::from_raw(self.head.as_ptr()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s [INFO] running `Command { std: "docker" "inspect" "dacac25a02d93cd3d472242e5a2bf8205b6109d14f8d7b84430b247e26e04c31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dacac25a02d93cd3d472242e5a2bf8205b6109d14f8d7b84430b247e26e04c31", kill_on_drop: false }` [INFO] [stdout] dacac25a02d93cd3d472242e5a2bf8205b6109d14f8d7b84430b247e26e04c31 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 191dbf31afa0abecddc9a7f5fb7f8b4a27a6a67f03b5e6486a4e6a87d8bfa1bf [INFO] running `Command { std: "docker" "start" "-a" "191dbf31afa0abecddc9a7f5fb7f8b4a27a6a67f03b5e6486a4e6a87d8bfa1bf", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stderr] --> src/lib.rs:498:13 [INFO] [stderr] | [INFO] [stderr] 498 | Box::from_raw(self.head.as_ptr()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [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] 498 | let _ = Box::from_raw(self.head.as_ptr()); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `skip-list` (lib) generated 1 warning [INFO] [stderr] warning: `skip-list` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/skip_list-dc794c1f689fd1de) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tests::test_sl ... ok [INFO] [stdout] test tests::test_of_skip_list ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests skip_list [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test src/lib.rs - (line 7) ... ok [INFO] [stdout] test src/lib.rs - SkipList::delete (line 312) ... ok [INFO] [stdout] test src/lib.rs - SkipList::default (line 176) ... ok [INFO] [stdout] test src/lib.rs - SkipList::new (line 198) ... ok [INFO] [stdout] test src/lib.rs - SkipList::insert (line 252) ... ok [INFO] [stdout] test src/lib.rs - SkipList::get (line 218) ... ok [INFO] [stdout] test src/lib.rs - SkipList::iter_mut (line 403) ... ok [INFO] [stdout] test src/lib.rs - SkipList::iter (line 367) ... ok [INFO] [stdout] test src/lib.rs - SkipList::into_iter (line 451) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.98s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "191dbf31afa0abecddc9a7f5fb7f8b4a27a6a67f03b5e6486a4e6a87d8bfa1bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "191dbf31afa0abecddc9a7f5fb7f8b4a27a6a67f03b5e6486a4e6a87d8bfa1bf", kill_on_drop: false }` [INFO] [stdout] 191dbf31afa0abecddc9a7f5fb7f8b4a27a6a67f03b5e6486a4e6a87d8bfa1bf