[INFO] crate ia 0.1.2 is already in cache
[INFO] checking ia-0.1.2 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate ia 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ia 0.1.2 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ia 0.1.2
[INFO] finished tweaking crates.io crate ia 0.1.2
[INFO] tweaked toml for crates.io crate ia 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fc973fe66837a007f8153b5e4cfab6ce544b6ae54b116ec725aff42211368bdf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "fc973fe66837a007f8153b5e4cfab6ce544b6ae54b116ec725aff42211368bdf"`
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking ia v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stderr]   --> src/raw.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::boxed::FnBox;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]  --> src/executor.rs:7:51
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fut: UnsafeCell<Box<Future<Item = (), Error = !> + 'static>>
[INFO] [stderr]   |                                                   ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]   = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/executor.rs:11:47
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(fut: Box<Future<Item = (), Error = !> + 'static>) -> TaskInfo {
[INFO] [stderr]    |                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/executor.rs:17:64
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn get_future(&self) -> &mut Box<Future<Item = (), Error = !> + 'static> {
[INFO] [stderr]    |                                                                ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/utils.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 |     type Error = !;
[INFO] [stderr]    |                  ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/utils.rs:18:28
[INFO] [stderr]    |
[INFO] [stderr] 18 |     ) -> Result<Async<()>, !> {
[INFO] [stderr]    |                            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/net.rs:18:18
[INFO] [stderr]    |
[INFO] [stderr] 18 |     type Error = !;
[INFO] [stderr]    |                  ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/net.rs:22:47
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ) -> Result<Async<Option<TcpConnection>>, !> {
[INFO] [stderr]    |                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:336:17
[INFO] [stderr]     |
[INFO] [stderr] 336 |     let cb: Box<Fn(i32) -> i32> = Box::new(move |stream_tid| {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/executor.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fut: UnsafeCell<Box<Future<Item = (), Error = !> + 'static>>
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = !> + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/executor.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(fut: Box<Future<Item = (), Error = !> + 'static>) -> TaskInfo {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = !> + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/executor.rs:17:38
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn get_future(&self) -> &mut Box<Future<Item = (), Error = !> + 'static> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = !> + 'static`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stderr]   --> src/raw.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::boxed::FnBox;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]  --> src/executor.rs:7:51
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fut: UnsafeCell<Box<Future<Item = (), Error = !> + 'static>>
[INFO] [stderr]   |                                                   ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]   = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/executor.rs:11:47
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(fut: Box<Future<Item = (), Error = !> + 'static>) -> TaskInfo {
[INFO] [stderr]    |                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/executor.rs:17:64
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn get_future(&self) -> &mut Box<Future<Item = (), Error = !> + 'static> {
[INFO] [stderr]    |                                                                ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/utils.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 |     type Error = !;
[INFO] [stderr]    |                  ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/utils.rs:18:28
[INFO] [stderr]    |
[INFO] [stderr] 18 |     ) -> Result<Async<()>, !> {
[INFO] [stderr]    |                            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/net.rs:18:18
[INFO] [stderr]    |
[INFO] [stderr] 18 |     type Error = !;
[INFO] [stderr]    |                  ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the `!` type is experimental
[INFO] [stderr]   --> src/net.rs:22:47
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ) -> Result<Async<Option<TcpConnection>>, !> {
[INFO] [stderr]    |                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #35121 <https://github.com/rust-lang/rust/issues/35121> for more information
[INFO] [stderr]    = help: add `#![feature(never_type)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 203 | impl_wrap_callback!();
[INFO] [stderr]     | ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 204 | impl_wrap_callback!(a: i32, );
[INFO] [stderr]     | ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 205 | impl_wrap_callback!(a: i32, b: i32, );
[INFO] [stderr]     | -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 206 | impl_wrap_callback!(a: i32, b: i32, c: i32, );
[INFO] [stderr]     | ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 207 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, );
[INFO] [stderr]     | ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 208 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, );
[INFO] [stderr]     | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |         impl WrapCallback for Box<Fn($($arg_t, )*) -> i32> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:175:33
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let f: &Box<Fn($($arg_t, )*) -> i32> = unsafe {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:176:48
[INFO] [stderr]     |
[INFO] [stderr] 176 |                         &* (addr as *const Box<Fn($($arg_t, )*) -> i32>)
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 let f: Box<Box<Fn($($arg_t, )*) -> i32>> = Box::new(self);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn($($arg_t, )*) -> i32`
[INFO] [stderr] ...
[INFO] [stderr] 209 | impl_wrap_callback!(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, );
[INFO] [stderr]     | ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/raw.rs:336:17
[INFO] [stderr]     |
[INFO] [stderr] 336 |     let cb: Box<Fn(i32) -> i32> = Box::new(move |stream_tid| {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i32) -> i32`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/executor.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fut: UnsafeCell<Box<Future<Item = (), Error = !> + 'static>>
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = !> + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/executor.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(fut: Box<Future<Item = (), Error = !> + 'static>) -> TaskInfo {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = !> + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/executor.rs:17:38
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn get_future(&self) -> &mut Box<Future<Item = (), Error = !> + 'static> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = !> + 'static`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors; 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `ia`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 8 previous errors; 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `ia`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fc973fe66837a007f8153b5e4cfab6ce544b6ae54b116ec725aff42211368bdf"`
[INFO] running `"docker" "rm" "-f" "fc973fe66837a007f8153b5e4cfab6ce544b6ae54b116ec725aff42211368bdf"`
[INFO] [stdout] fc973fe66837a007f8153b5e4cfab6ce544b6ae54b116ec725aff42211368bdf