[INFO] cloning repository https://github.com/conradludgate/linked_list_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/conradludgate/linked_list_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 26ad109e6f4d14e5cc2c2ccb1f5fb497abcaa223 [INFO] testing conradludgate/linked_list_rs against beta-2025-04-13 for beta-1.87-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/conradludgate/linked_list_rs on toolchain beta-2025-04-13 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/conradludgate/linked_list_rs [INFO] finished tweaking git repo https://github.com/conradludgate/linked_list_rs [INFO] tweaked toml for git repo https://github.com/conradludgate/linked_list_rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/conradludgate/linked_list_rs 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-2025-04-13" "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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded testdrop v0.1.2 [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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef890fd7ff8ca871f711cab0dcd8b6ed4f22dfdfbed24547c2a601751fa4737d [INFO] running `Command { std: "docker" "start" "-a" "ef890fd7ff8ca871f711cab0dcd8b6ed4f22dfdfbed24547c2a601751fa4737d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef890fd7ff8ca871f711cab0dcd8b6ed4f22dfdfbed24547c2a601751fa4737d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef890fd7ff8ca871f711cab0dcd8b6ed4f22dfdfbed24547c2a601751fa4737d", kill_on_drop: false }` [INFO] [stdout] ef890fd7ff8ca871f711cab0dcd8b6ed4f22dfdfbed24547c2a601751fa4737d [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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4e3cf650ea0a96c2d3e7c3398d79cd2187605af54dd0f2c8a7315241cd6e9ac1 [INFO] running `Command { std: "docker" "start" "-a" "4e3cf650ea0a96c2d3e7c3398d79cd2187605af54dd0f2c8a7315241cd6e9ac1", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling linked_list_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unknown lint: `bad_code` [INFO] [stdout] --> src/lib.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | #![allow(bad_code)] [INFO] [stdout] | ^^^^^^^^ help: did you mean: `dead_code` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unknown_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/lib.rs:300:18 [INFO] [stdout] | [INFO] [stdout] 300 | unsafe { Box::from_raw(node as *mut Node) }; [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 300 | unsafe { let _ = Box::from_raw(node as *mut Node); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s [INFO] running `Command { std: "docker" "inspect" "4e3cf650ea0a96c2d3e7c3398d79cd2187605af54dd0f2c8a7315241cd6e9ac1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e3cf650ea0a96c2d3e7c3398d79cd2187605af54dd0f2c8a7315241cd6e9ac1", kill_on_drop: false }` [INFO] [stdout] 4e3cf650ea0a96c2d3e7c3398d79cd2187605af54dd0f2c8a7315241cd6e9ac1 [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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fe886c679db8b24007f6173465393053b25942cb4751ac6c5f2e8b92a9b5146e [INFO] running `Command { std: "docker" "start" "-a" "fe886c679db8b24007f6173465393053b25942cb4751ac6c5f2e8b92a9b5146e", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling testdrop v0.1.2 [INFO] [stdout] warning: unknown lint: `bad_code` [INFO] [stdout] --> src/lib.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | #![allow(bad_code)] [INFO] [stdout] | ^^^^^^^^ help: did you mean: `dead_code` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unknown_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/lib.rs:300:18 [INFO] [stdout] | [INFO] [stdout] 300 | unsafe { Box::from_raw(node as *mut Node) }; [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 300 | unsafe { let _ = Box::from_raw(node as *mut Node); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling linked_list_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unknown lint: `bad_code` [INFO] [stdout] --> src/lib.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | #![allow(bad_code)] [INFO] [stdout] | ^^^^^^^^ help: did you mean: `dead_code` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unknown_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:349:32 [INFO] [stdout] | [INFO] [stdout] 349 | struct DropCheck(T, Box); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 349 | struct DropCheck(T, Box); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `DropCheck` is never constructed [INFO] [stdout] --> src/lib.rs:349:12 [INFO] [stdout] | [INFO] [stdout] 349 | struct DropCheck(T, Box); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/lib.rs:300:18 [INFO] [stdout] | [INFO] [stdout] 300 | unsafe { Box::from_raw(node as *mut Node) }; [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 300 | unsafe { let _ = Box::from_raw(node as *mut Node); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `Command { std: "docker" "inspect" "fe886c679db8b24007f6173465393053b25942cb4751ac6c5f2e8b92a9b5146e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe886c679db8b24007f6173465393053b25942cb4751ac6c5f2e8b92a9b5146e", kill_on_drop: false }` [INFO] [stdout] fe886c679db8b24007f6173465393053b25942cb4751ac6c5f2e8b92a9b5146e [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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 919adf62912b9e608a3b40d65a5a94d21c0674ead85fb3836ee259ff3a5688a4 [INFO] running `Command { std: "docker" "start" "-a" "919adf62912b9e608a3b40d65a5a94d21c0674ead85fb3836ee259ff3a5688a4", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] warning: unknown lint: `bad_code` [INFO] [stderr] --> src/lib.rs:5:10 [INFO] [stderr] | [INFO] [stderr] 5 | #![allow(bad_code)] [INFO] [stderr] | ^^^^^^^^ help: did you mean: `dead_code` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stderr] --> src/lib.rs:300:18 [INFO] [stderr] | [INFO] [stderr] 300 | unsafe { Box::from_raw(node as *mut Node) }; [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)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 300 | unsafe { let _ = Box::from_raw(node as *mut Node); }; [INFO] [stderr] | +++++++ + [INFO] [stderr] [INFO] [stderr] warning: `linked_list_rs` (lib) generated 2 warnings [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:349:32 [INFO] [stderr] | [INFO] [stderr] 349 | struct DropCheck(T, Box); [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 349 | struct DropCheck(T, Box); [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: struct `DropCheck` is never constructed [INFO] [stderr] --> src/lib.rs:349:12 [INFO] [stderr] | [INFO] [stderr] 349 | struct DropCheck(T, Box); [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `linked_list_rs` (lib test) generated 4 warnings (2 duplicates) (run `cargo fix --lib -p linked_list_rs --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/linked_list_rs-4d576a0436ac1d37) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stderr] [INFO] [stderr] thread 'tests::push' panicked at library/core/src/panicking.rs:218:5: [INFO] [stderr] unsafe precondition(s) violated: ptr::read_volatile requires that the pointer argument is aligned and non-null [INFO] [stderr] [INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety. [INFO] [stderr] stack backtrace: [INFO] [stdout] test iter::tests::iter ... ok [INFO] [stdout] test tests::debug ... ok [INFO] [stdout] test tests::drop_check ... ok [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/linked_list_rs-4d576a0436ac1d37` (signal: 11, SIGSEGV: invalid memory reference) [INFO] running `Command { std: "docker" "inspect" "919adf62912b9e608a3b40d65a5a94d21c0674ead85fb3836ee259ff3a5688a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "919adf62912b9e608a3b40d65a5a94d21c0674ead85fb3836ee259ff3a5688a4", kill_on_drop: false }` [INFO] [stdout] 919adf62912b9e608a3b40d65a5a94d21c0674ead85fb3836ee259ff3a5688a4