[INFO] fetching crate task_kit 0.2.0...
[INFO] testing task_kit-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate task_kit 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate task_kit 0.2.0
[INFO] finished tweaking crates.io crate task_kit 0.2.0
[INFO] tweaked toml for crates.io crate task_kit 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate task_kit 0.2.0 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 15 packages to latest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.32)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.10.1)
[INFO] [stderr]       Adding tokio-timer v0.1.2 (available: v0.2.13)
[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] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4d6ff6acbd102e6d3ea382426943dea3a8bcb51ce87547c1f44b594fab2b522b
[INFO] running `Command { std: "docker" "start" "-a" "4d6ff6acbd102e6d3ea382426943dea3a8bcb51ce87547c1f44b594fab2b522b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d6ff6acbd102e6d3ea382426943dea3a8bcb51ce87547c1f44b594fab2b522b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6ff6acbd102e6d3ea382426943dea3a8bcb51ce87547c1f44b594fab2b522b", kill_on_drop: false }`
[INFO] [stdout] 4d6ff6acbd102e6d3ea382426943dea3a8bcb51ce87547c1f44b594fab2b522b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 82765c3f039274fea5736066477e3922ef419d112a374f9993df8904dc8ea89f
[INFO] running `Command { std: "docker" "start" "-a" "82765c3f039274fea5736066477e3922ef419d112a374f9993df8904dc8ea89f", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling task_kit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/runner/task_queue.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<Executable>>>>);
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<dyn Executable>>>>);
[INFO] [stdout]   |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task/task.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |   task: Box<FnMut() -> State<T, E> + 'a>,
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 |   task: Box<dyn FnMut() -> State<T, E> + 'a>,
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue_set.rs:22:50
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue_set.rs:33:46
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn push_to_rand_queue(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn push_to_rand_queue(&self, task: Box<dyn Executable>) {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:13:44
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn append(&self, tasks: &mut Vec<Box<Executable>>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn append(&self, tasks: &mut Vec<Box<dyn Executable>>) {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn insert(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn insert(&self, task: Box<dyn Executable>) {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn split(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn split(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:32:36
[INFO] [stdout]    |
[INFO] [stdout] 32 |   pub fn next(&self) -> Option<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 |   pub fn next(&self) -> Option<Box<dyn Executable>> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "82765c3f039274fea5736066477e3922ef419d112a374f9993df8904dc8ea89f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82765c3f039274fea5736066477e3922ef419d112a374f9993df8904dc8ea89f", kill_on_drop: false }`
[INFO] [stdout] 82765c3f039274fea5736066477e3922ef419d112a374f9993df8904dc8ea89f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3ea205d603246e87f6e5523c1cf06bb5214a7694fd39a7cbb1460e58a90b148e
[INFO] running `Command { std: "docker" "start" "-a" "3ea205d603246e87f6e5523c1cf06bb5214a7694fd39a7cbb1460e58a90b148e", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/runner/task_queue.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<Executable>>>>);
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<dyn Executable>>>>);
[INFO] [stdout]   |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task/task.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |   task: Box<FnMut() -> State<T, E> + 'a>,
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 |   task: Box<dyn FnMut() -> State<T, E> + 'a>,
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue_set.rs:22:50
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue_set.rs:33:46
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn push_to_rand_queue(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn push_to_rand_queue(&self, task: Box<dyn Executable>) {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:13:44
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn append(&self, tasks: &mut Vec<Box<Executable>>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn append(&self, tasks: &mut Vec<Box<dyn Executable>>) {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn insert(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn insert(&self, task: Box<dyn Executable>) {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn split(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn split(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:32:36
[INFO] [stdout]    |
[INFO] [stdout] 32 |   pub fn next(&self) -> Option<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 |   pub fn next(&self) -> Option<Box<dyn Executable>> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling task_kit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/runner/task_queue.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<Executable>>>>);
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<dyn Executable>>>>);
[INFO] [stdout]   |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task/task.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |   task: Box<FnMut() -> State<T, E> + 'a>,
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 51 |   task: Box<dyn FnMut() -> State<T, E> + 'a>,
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue_set.rs:22:50
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue_set.rs:33:46
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn push_to_rand_queue(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn push_to_rand_queue(&self, task: Box<dyn Executable>) {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:13:44
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn append(&self, tasks: &mut Vec<Box<Executable>>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn append(&self, tasks: &mut Vec<Box<dyn Executable>>) {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn insert(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |   pub fn insert(&self, task: Box<dyn Executable>) {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn split(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn split(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/runner/task_queue.rs:32:36
[INFO] [stdout]    |
[INFO] [stdout] 32 |   pub fn next(&self) -> Option<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 |   pub fn next(&self) -> Option<Box<dyn Executable>> {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.81s
[INFO] running `Command { std: "docker" "inspect" "3ea205d603246e87f6e5523c1cf06bb5214a7694fd39a7cbb1460e58a90b148e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea205d603246e87f6e5523c1cf06bb5214a7694fd39a7cbb1460e58a90b148e", kill_on_drop: false }`
[INFO] [stdout] 3ea205d603246e87f6e5523c1cf06bb5214a7694fd39a7cbb1460e58a90b148e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f0e1f83ca7aee9f5fa07a66ef652ff8273f350fe88079ec78a0f0faf47e54c7b
[INFO] running `Command { std: "docker" "start" "-a" "f0e1f83ca7aee9f5fa07a66ef652ff8273f350fe88079ec78a0f0faf47e54c7b", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/runner/task_queue.rs:6:41
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<Executable>>>>);
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct TaskQueue(Arc<RwLock<Vec<Box<dyn Executable>>>>);
[INFO] [stderr]   |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/task/task.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |   task: Box<FnMut() -> State<T, E> + 'a>,
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 51 |   task: Box<dyn FnMut() -> State<T, E> + 'a>,
[INFO] [stderr]    |             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/runner/task_queue_set.rs:22:50
[INFO] [stderr]    |
[INFO] [stderr] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stderr]    |                                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/runner/task_queue_set.rs:33:46
[INFO] [stderr]    |
[INFO] [stderr] 33 |   pub fn push_to_rand_queue(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 33 |   pub fn push_to_rand_queue(&self, task: Box<dyn Executable>) {
[INFO] [stderr]    |                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/runner/task_queue.rs:13:44
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn append(&self, tasks: &mut Vec<Box<Executable>>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn append(&self, tasks: &mut Vec<Box<dyn Executable>>) {
[INFO] [stderr]    |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/runner/task_queue.rs:17:34
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn insert(&self, task: Box<Executable>) {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn insert(&self, task: Box<dyn Executable>) {
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/runner/task_queue.rs:21:34
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn split(&self) -> Vec<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn split(&self) -> Vec<Box<dyn Executable>> {
[INFO] [stderr]    |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/runner/task_queue.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 |   pub fn next(&self) -> Option<Box<Executable>> {
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 32 |   pub fn next(&self) -> Option<Box<dyn Executable>> {
[INFO] [stderr]    |                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: `task_kit` (lib) generated 8 warnings (run `cargo fix --lib -p task_kit` to apply 8 suggestions)
[INFO] [stderr] warning: `task_kit` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/task_kit-4dfd62bbfeb9c842)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test task::task::tests::can_chain_tasks ... ok
[INFO] [stdout] test task::task::tests::can_poll_for_value ... ok
[INFO] [stdout] test task::task::tests::can_create_task ... ok
[INFO] [stdout] test task::task::tests::can_wait_for_value ... ok
[INFO] [stdout] test task::task::tests::can_use_done ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests task_kit
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/task/task.rs - task::task::Task (line 19) ... ok
[INFO] [stdout] test src/task/task.rs - task::task::Task<'a,T,E>::with (line 148) ... ok
[INFO] [stdout] test src/task/task.rs - task::task::Task<'a,T,E>::from (line 104) ... ok
[INFO] [stdout] test src/task/task.rs - task::task::Task<'a,T,E>::new (line 75) ... ok
[INFO] [stdout] test src/task/task.rs - task::task::Task (line 37) ... ok
[INFO] [stdout] test src/task/task.rs - task::task::Task<'a,T,E>::join (line 180) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f0e1f83ca7aee9f5fa07a66ef652ff8273f350fe88079ec78a0f0faf47e54c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e1f83ca7aee9f5fa07a66ef652ff8273f350fe88079ec78a0f0faf47e54c7b", kill_on_drop: false }`
[INFO] [stdout] f0e1f83ca7aee9f5fa07a66ef652ff8273f350fe88079ec78a0f0faf47e54c7b
