[INFO] fetching crate task_kit 0.2.0...
[INFO] checking task_kit-0.2.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate task_kit 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate task_kit 0.2.0 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d304fca9fd9caceeb7138b3459cfe31b95a3454e797809ad590280d10da317d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9d304fca9fd9caceeb7138b3459cfe31b95a3454e797809ad590280d10da317d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d304fca9fd9caceeb7138b3459cfe31b95a3454e797809ad590280d10da317d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d304fca9fd9caceeb7138b3459cfe31b95a3454e797809ad590280d10da317d", kill_on_drop: false }`
[INFO] [stdout] 9d304fca9fd9caceeb7138b3459cfe31b95a3454e797809ad590280d10da317d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66b6f9199309199704b151ccc36a6de83386a587a0b821318354b904c25d0dc4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "66b6f9199309199704b151ccc36a6de83386a587a0b821318354b904c25d0dc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking 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_set.rs:22:50
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn steal_from_rand_queue(&self) -> Vec<Box<Executable>> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                              ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[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]   |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> State<T, E> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                                  ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                              ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[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]   |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Executable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> State<T, E> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.81s
[INFO] running `Command { std: "docker" "inspect" "66b6f9199309199704b151ccc36a6de83386a587a0b821318354b904c25d0dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b6f9199309199704b151ccc36a6de83386a587a0b821318354b904c25d0dc4", kill_on_drop: false }`
[INFO] [stdout] 66b6f9199309199704b151ccc36a6de83386a587a0b821318354b904c25d0dc4