[INFO] fetching crate minions 0.2.9...
[INFO] checking minions-0.2.9 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate minions 0.2.9 into /workspace/builds/worker-65/source
[INFO] validating manifest of crates.io crate minions 0.2.9 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minions 0.2.9
[INFO] finished tweaking crates.io crate minions 0.2.9
[INFO] tweaked toml for crates.io crate minions 0.2.9 written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 smallvec v0.1.8
[INFO] [stderr]   Downloaded parking_lot v0.2.8
[INFO] [stderr]   Downloaded lossyq v0.1.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 097ac229d7ba682d4796bb24fedf13d3b4222ab26206586e97151cc073ed98a5
[INFO] running `Command { std: "docker" "start" "-a" "097ac229d7ba682d4796bb24fedf13d3b4222ab26206586e97151cc073ed98a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "097ac229d7ba682d4796bb24fedf13d3b4222ab26206586e97151cc073ed98a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "097ac229d7ba682d4796bb24fedf13d3b4222ab26206586e97151cc073ed98a5", kill_on_drop: false }`
[INFO] [stdout] 097ac229d7ba682d4796bb24fedf13d3b4222ab26206586e97151cc073ed98a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ec97c319a9fbcd45d4de77c12ad2da3a4176a47604d1774500912562ade53cd
[INFO] running `Command { std: "docker" "start" "-a" "9ec97c319a9fbcd45d4de77c12ad2da3a4176a47604d1774500912562ade53cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]     Checking lossyq v0.1.19
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking parking_lot v0.2.8
[INFO] [stderr]     Checking minions v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/scheduler/wrap.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 |   task:             Box<Task+Send>,
[INFO] [stdout]   |                         ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:15:40
[INFO] [stdout]    |
[INFO] [stdout] 15 |   fn execute(&mut self, observer: &mut Observer, time_us: &AtomicUsize) -> Schedule {
[INFO] [stdout]    |                                        ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:32:58
[INFO] [stdout]    |
[INFO] [stdout] 32 |   fn transition(&mut self, event: &Event, observer: &mut Observer, time_us: &AtomicUsize) {
[INFO] [stdout]    |                                                          ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:63:30
[INFO] [stdout]    |
[INFO] [stdout] 63 |               observer: &mut Observer,
[INFO] [stdout]    |                              ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:99:22
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn new(task: Box<Task+Send>, id: usize) -> TaskWrap {
[INFO] [stdout]    |                      ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/array.rs:12:49
[INFO] [stdout]    |
[INFO] [stdout] 12 |   pub fn store(&mut self, idx: usize, task: Box<Task+Send>, id: usize) {
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/array.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |                  observer: &mut Observer,
[INFO] [stdout]    |                                 ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/data.rs:47:40
[INFO] [stdout]    |
[INFO] [stdout] 47 |   pub fn add_task(&mut self, task: Box<Task+Send>) -> Result<task_id::TaskId, Error> {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/mod.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn add_task(&mut self, task: Box<Task+Send>) -> Result<task_id::TaskId, Error> {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/source.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |   state      : Box<Source<OutputType=Output>+Send>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source<OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/source.rs:48:27
[INFO] [stdout]    |
[INFO] [stdout] 48 |     source          : Box<Source<OutputType=Output>+Send>)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source<OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/filter.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |   state        : Box<Filter<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Filter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/filter.rs:74:27
[INFO] [stdout]    |
[INFO] [stdout] 74 |     filter          : Box<Filter<InputType=Input,OutputType=Output>+Send>)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Filter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ysplit.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |   state         : Box<YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ysplit.rs:81:29
[INFO] [stdout]    |
[INFO] [stdout] 81 |     ysplit            : Box<YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send>)
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ymerge.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |   state        : Box<YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ymerge.rs:89:28
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ymerge           : Box<YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send>)
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/sink.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |   state     : Box<Sink<InputType=Input>+Send>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sink<InputType=Input>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/sink.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |     sink   : Box<Sink<InputType=Input>+Send>)
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sink<InputType=Input>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/scatter.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |   state          : Box<Scatter<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Scatter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/scatter.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |     scatter         : Box<Scatter<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Scatter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/gather.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |   state          : Box<Gather<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Gather<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/gather.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |     gather          : Box<Gather<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Gather<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/scheduler/wrap.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 |   task:             Box<Task+Send>,
[INFO] [stdout]   |                         ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:15:40
[INFO] [stdout]    |
[INFO] [stdout] 15 |   fn execute(&mut self, observer: &mut Observer, time_us: &AtomicUsize) -> Schedule {
[INFO] [stdout]    |                                        ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:32:58
[INFO] [stdout]    |
[INFO] [stdout] 32 |   fn transition(&mut self, event: &Event, observer: &mut Observer, time_us: &AtomicUsize) {
[INFO] [stdout]    |                                                          ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:63:30
[INFO] [stdout]    |
[INFO] [stdout] 63 |               observer: &mut Observer,
[INFO] [stdout]    |                              ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/wrap.rs:99:22
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn new(task: Box<Task+Send>, id: usize) -> TaskWrap {
[INFO] [stdout]    |                      ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/array.rs:12:49
[INFO] [stdout]    |
[INFO] [stdout] 12 |   pub fn store(&mut self, idx: usize, task: Box<Task+Send>, id: usize) {
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/array.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |                  observer: &mut Observer,
[INFO] [stdout]    |                                 ^^^^^^^^ help: use `dyn`: `dyn Observer`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/data.rs:47:40
[INFO] [stdout]    |
[INFO] [stdout] 47 |   pub fn add_task(&mut self, task: Box<Task+Send>) -> Result<task_id::TaskId, Error> {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler/mod.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn add_task(&mut self, task: Box<Task+Send>) -> Result<task_id::TaskId, Error> {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn Task+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/source.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |   state      : Box<Source<OutputType=Output>+Send>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source<OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/source.rs:48:27
[INFO] [stdout]    |
[INFO] [stdout] 48 |     source          : Box<Source<OutputType=Output>+Send>)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Source<OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/filter.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |   state        : Box<Filter<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Filter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/filter.rs:74:27
[INFO] [stdout]    |
[INFO] [stdout] 74 |     filter          : Box<Filter<InputType=Input,OutputType=Output>+Send>)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Filter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ysplit.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |   state         : Box<YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ysplit.rs:81:29
[INFO] [stdout]    |
[INFO] [stdout] 81 |     ysplit            : Box<YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send>)
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YSplit<InputType=Input, OutputTypeA=OutputA, OutputTypeB=OutputB>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ymerge.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |   state        : Box<YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/ymerge.rs:89:28
[INFO] [stdout]    |
[INFO] [stdout] 89 |     ymerge           : Box<YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send>)
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn YMerge<InputTypeA=InputA, InputTypeB=InputB, OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/sink.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |   state     : Box<Sink<InputType=Input>+Send>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sink<InputType=Input>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/sink.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |     sink   : Box<Sink<InputType=Input>+Send>)
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Sink<InputType=Input>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/scatter.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |   state          : Box<Scatter<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Scatter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/scatter.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |     scatter         : Box<Scatter<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Scatter<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/gather.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |   state          : Box<Gather<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Gather<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/elem/gather.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |     gather          : Box<Gather<InputType=Input,OutputType=Output>+Send>,
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Gather<InputType=Input,OutputType=Output>+Send`
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `task_id`
[INFO] [stdout]   --> src/lib.rs:66:3
[INFO] [stdout]    |
[INFO] [stdout] 66 |   task_id: usize,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lib.rs:67:3
[INFO] [stdout]    |
[INFO] [stdout] 67 |   name: &'a String,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eval_id`
[INFO] [stdout]   --> src/lib.rs:69:3
[INFO] [stdout]    |
[INFO] [stdout] 69 |   eval_id: usize,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `task_id`
[INFO] [stdout]   --> src/lib.rs:66:3
[INFO] [stdout]    |
[INFO] [stdout] 66 |   task_id: usize,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lib.rs:67:3
[INFO] [stdout]    |
[INFO] [stdout] 67 |   name: &'a String,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eval_id`
[INFO] [stdout]   --> src/lib.rs:69:3
[INFO] [stdout]    |
[INFO] [stdout] 69 |   eval_id: usize,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `Command { std: "docker" "inspect" "9ec97c319a9fbcd45d4de77c12ad2da3a4176a47604d1774500912562ade53cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec97c319a9fbcd45d4de77c12ad2da3a4176a47604d1774500912562ade53cd", kill_on_drop: false }`
[INFO] [stdout] 9ec97c319a9fbcd45d4de77c12ad2da3a4176a47604d1774500912562ade53cd