[INFO] fetching crate thread_task_runner 0.1.0...
[INFO] checking thread_task_runner-0.1.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate thread_task_runner 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate thread_task_runner 0.1.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thread_task_runner 0.1.0
[INFO] finished tweaking crates.io crate thread_task_runner 0.1.0
[INFO] tweaked toml for crates.io crate thread_task_runner 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7df7faf8d8dee6631bd0328e72313449687f2b4942331b705eed190d4498477
[INFO] running `Command { std: "docker" "start" "-a" "d7df7faf8d8dee6631bd0328e72313449687f2b4942331b705eed190d4498477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7df7faf8d8dee6631bd0328e72313449687f2b4942331b705eed190d4498477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7df7faf8d8dee6631bd0328e72313449687f2b4942331b705eed190d4498477", kill_on_drop: false }`
[INFO] [stdout] d7df7faf8d8dee6631bd0328e72313449687f2b4942331b705eed190d4498477
[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=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 912739310e2edbe4f526e58001d5765e823bba0e12773ed71147758da1799633
[INFO] running `Command { std: "docker" "start" "-a" "912739310e2edbe4f526e58001d5765e823bba0e12773ed71147758da1799633", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking thread_task_runner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |     parameter: Box<Any>,
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     parameter: Box<dyn Any>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<Fn(Box<Any>)>
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<dyn Fn(Box<Any>)>
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:36:26
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<Fn(Box<Any>)>
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<Fn(Box<dyn Any>)>
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:57:62
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_task_with_callback<T, R>(&self, callback: Box<Fn(Box<T>) -> R>, parameter: Box<T>) where T: 'static + Any + Send, R: 'stat...
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_task_with_callback<T, R>(&self, callback: Box<dyn Fn(Box<T>) -> R>, parameter: Box<T>) where T: 'static + Any + Send, R: 'static {
[INFO] [stdout]    |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:73:53
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn add_task_with_trait(&self, callback: Box<TaskCallback>) {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn add_task_with_trait(&self, callback: Box<dyn TaskCallback>) {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:58:59
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let task_callback = Box::new(move |parameter: Box<Any>| {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let task_callback = Box::new(move |parameter: Box<dyn Any>| {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |     parameter: Box<Any>,
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     parameter: Box<dyn Any>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<Fn(Box<Any>)>
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<dyn Fn(Box<Any>)>
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:36:26
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<Fn(Box<Any>)>
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 |     callback: Box<Fn(Box<dyn Any>)>
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:57:62
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_task_with_callback<T, R>(&self, callback: Box<Fn(Box<T>) -> R>, parameter: Box<T>) where T: 'static + Any + Send, R: 'stat...
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_task_with_callback<T, R>(&self, callback: Box<dyn Fn(Box<T>) -> R>, parameter: Box<T>) where T: 'static + Any + Send, R: 'static {
[INFO] [stdout]    |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:73:53
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn add_task_with_trait(&self, callback: Box<TaskCallback>) {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn add_task_with_trait(&self, callback: Box<dyn TaskCallback>) {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:58:59
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let task_callback = Box::new(move |parameter: Box<Any>| {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let task_callback = Box::new(move |parameter: Box<dyn Any>| {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "912739310e2edbe4f526e58001d5765e823bba0e12773ed71147758da1799633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "912739310e2edbe4f526e58001d5765e823bba0e12773ed71147758da1799633", kill_on_drop: false }`
[INFO] [stdout] 912739310e2edbe4f526e58001d5765e823bba0e12773ed71147758da1799633