[INFO] fetching crate agnostic_async_executor 0.2.2...
[INFO] testing agnostic_async_executor-0.2.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate agnostic_async_executor 0.2.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate agnostic_async_executor 0.2.2
[INFO] finished tweaking crates.io crate agnostic_async_executor 0.2.2
[INFO] tweaked toml for crates.io crate agnostic_async_executor 0.2.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate agnostic_async_executor 0.2.2 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 99 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (available: v2.5.0)
[INFO] [stderr]       Adding async-io v1.13.0 (available: v2.6.0)
[INFO] [stderr]       Adding concurrent-queue v1.2.4 (available: v2.5.0)
[INFO] [stderr]       Adding futures-lite v1.13.0 (available: v2.6.1)
[INFO] [stderr]       Adding send_wrapper v0.5.0 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e0ea06b44a1c417570692cd3ddbbd2b7a2b2f5bc3b9cb3d7c525b83499c103f
[INFO] running `Command { std: "docker" "start" "-a" "0e0ea06b44a1c417570692cd3ddbbd2b7a2b2f5bc3b9cb3d7c525b83499c103f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e0ea06b44a1c417570692cd3ddbbd2b7a2b2f5bc3b9cb3d7c525b83499c103f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e0ea06b44a1c417570692cd3ddbbd2b7a2b2f5bc3b9cb3d7c525b83499c103f", kill_on_drop: false }`
[INFO] [stdout] 0e0ea06b44a1c417570692cd3ddbbd2b7a2b2f5bc3b9cb3d7c525b83499c103f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a445fa31e4029be90556f0d26eb6aaa41f8c74ac186c531f5cf56268a5e1e2bb
[INFO] running `Command { std: "docker" "start" "-a" "a445fa31e4029be90556f0d26eb6aaa41f8c74ac186c531f5cf56268a5e1e2bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling agnostic_async_executor v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   --> src/executors/local_agnostic_executor.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use futures::task::LocalSpawnExt;
[INFO] [stdout]    |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/executors.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExecutorInnerHandle::*`
[INFO] [stdout]   --> src/executors/agnostic_executor.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use ExecutorInnerHandle::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExecutorInner::*`
[INFO] [stdout]   --> src/executors.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use ExecutorInner::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExecutorInnerHandle::*`
[INFO] [stdout]   --> src/executors.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use ExecutorInnerHandle::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/executors/local_agnostic_executor.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LocalExecutorInnerHandle::*`
[INFO] [stdout]   --> src/executors/local_agnostic_executor.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use LocalExecutorInnerHandle::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: type parameter `T` is never used
[INFO] [stdout]  --> src/executors/join_handle.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) enum JoinHandleInner<T> {
[INFO] [stdout]   |                                 ^ unused type parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout]   = help: if you intended `T` to be a const parameter, use `const T: /* Type */` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: type parameter `T` is never used
[INFO] [stdout]   --> src/executors/join_handle.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct JoinHandle<T> {
[INFO] [stdout]    |                       ^ unused type parameter
[INFO] [stdout] 20 |     pub(crate) inner: JoinHandleInner<T>
[INFO] [stdout]    |                                       - `T` is named here, but is likely unused in the containing type
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout]    = help: if you intended `T` to be a const parameter, use `const T: /* Type */` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/executors/agnostic_executor.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |           let inner = match &self.inner {
[INFO] [stdout]    |  _____________________-
[INFO] [stdout] 51 | |             #[cfg(feature = "tokio_executor")]
[INFO] [stdout] 52 | |             TokioHandle(handle) => {
[INFO] [stdout] 53 | |                 JoinHandleInner::<T>::Tokio(handle.spawn(future))
[INFO] [stdout] ...  |
[INFO] [stdout] 77 | |         };
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 78 |
[INFO] [stdout] 79 |           JoinHandle{inner}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `JoinHandleInner<_>`
[INFO] [stdout]   --> src/executors/agnostic_executor.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let inner = match &self.inner {
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `inner` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let inner: JoinHandleInner<T> = match &self.inner {
[INFO] [stdout]    |                  ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/executors/agnostic_executor.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout]  88 |           let inner = match &self.inner {
[INFO] [stdout]     |  _____________________-
[INFO] [stdout]  89 | |             #[cfg(feature = "tokio_executor")]
[INFO] [stdout]  90 | |             TokioHandle(handle) => {
[INFO] [stdout]  91 | |                 JoinHandleInner::<T>::Tokio(handle.spawn_blocking(task))
[INFO] [stdout] ...   |
[INFO] [stdout] 115 | |         };
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |           JoinHandle{inner}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `JoinHandleInner<_>`
[INFO] [stdout]   --> src/executors/agnostic_executor.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let inner = match &self.inner {
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `inner` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let inner: JoinHandleInner<T> = match &self.inner {
[INFO] [stdout]    |                  ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/executors/local_agnostic_executor.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |           let inner = match &self.inner {
[INFO] [stdout]    |  _____________________-
[INFO] [stdout] 55 | |             #[cfg(feature = "tokio_executor")]
[INFO] [stdout] 56 | |             TokioHandle => {
[INFO] [stdout] 57 | |                 JoinHandleInner::<T>::Tokio(tokio::task::spawn_local(future))
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         };
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 82 |
[INFO] [stdout] 83 |           JoinHandle{inner}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `JoinHandleInner<_>`
[INFO] [stdout]   --> src/executors/local_agnostic_executor.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let inner = match &self.inner {
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `inner` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let inner: JoinHandleInner<T> = match &self.inner {
[INFO] [stdout]    |                  ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&mut &mut JoinHandleInner<T>` is non-empty
[INFO] [stdout]   --> src/executors/join_handle.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |         match &mut inner {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `JoinHandleInner<T>` defined here
[INFO] [stdout]   --> src/executors/join_handle.rs:7:17
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub(crate) enum JoinHandleInner<T> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: the matched value is of type `&mut &mut JoinHandleInner<T>`
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]    |
[INFO] [stdout] 28 ~         match &mut inner {
[INFO] [stdout] 29 +             _ => todo!(),
[INFO] [stdout] 30 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/executors.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         AgnosticExecutor { inner: self.inner_handle.clone() }
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------------^^
[INFO] [stdout]     |         |                         |
[INFO] [stdout]     |         |                         any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `agnostic_executor::ExecutorInnerHandle`, which is uninhabited
[INFO] [stdout]    --> src/executors.rs:130:35
[INFO] [stdout]     |
[INFO] [stdout] 130 |         AgnosticExecutor { inner: self.inner_handle.clone() }
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/executors.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         LocalAgnosticExecutor { inner: self.local_inner_handle.clone() }
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------------------^^
[INFO] [stdout]     |         |                              |
[INFO] [stdout]     |         |                              any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `local_agnostic_executor::LocalExecutorInnerHandle`, which is uninhabited
[INFO] [stdout]    --> src/executors.rs:137:40
[INFO] [stdout]     |
[INFO] [stdout] 137 |         LocalAgnosticExecutor { inner: self.local_inner_handle.clone() }
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/executors.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 150 |         GLOBAL_EXECUTOR.set(self.get_executor()).expect("Global executor already set");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^-------------------^
[INFO] [stdout]     |         |                   |
[INFO] [stdout]     |         |                   any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `agnostic_executor::AgnosticExecutor`, which is uninhabited
[INFO] [stdout]    --> src/executors.rs:150:29
[INFO] [stdout]     |
[INFO] [stdout] 150 |         GLOBAL_EXECUTOR.set(self.get_executor()).expect("Global executor already set");
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `future`
[INFO] [stdout]    --> src/executors.rs:157:31
[INFO] [stdout]     |
[INFO] [stdout] 157 |     pub fn start<F>(mut self, future: F) where F: Future<Output = ()> + 'static {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_future`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish_cb`
[INFO] [stdout]    --> src/executors.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let finish_cb = || {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish_cb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/executors.rs:232:1
[INFO] [stdout]     |
[INFO] [stdout] 231 |     get_global_executor().spawn(future)
[INFO] [stdout]     |     ----------------------------------- any code following this expression is unreachable
[INFO] [stdout] 232 | }
[INFO] [stdout]     | ^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `join_handle::JoinHandle<T>`, which is uninhabited
[INFO] [stdout]    --> src/executors.rs:231:5
[INFO] [stdout]     |
[INFO] [stdout] 231 |     get_global_executor().spawn(future)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/executors.rs:241:1
[INFO] [stdout]     |
[INFO] [stdout] 240 |     get_global_executor().spawn_blocking(task)
[INFO] [stdout]     |     ------------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 241 | }
[INFO] [stdout]     | ^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `join_handle::JoinHandle<T>`, which is uninhabited
[INFO] [stdout]    --> src/executors.rs:240:5
[INFO] [stdout]     |
[INFO] [stdout] 240 |     get_global_executor().spawn_blocking(task)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0004, E0282, E0392, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `agnostic_async_executor` (lib) due to 7 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a445fa31e4029be90556f0d26eb6aaa41f8c74ac186c531f5cf56268a5e1e2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a445fa31e4029be90556f0d26eb6aaa41f8c74ac186c531f5cf56268a5e1e2bb", kill_on_drop: false }`
[INFO] [stdout] a445fa31e4029be90556f0d26eb6aaa41f8c74ac186c531f5cf56268a5e1e2bb
