[INFO] fetching crate agnostic_async_executor 0.2.2...
[INFO] checking agnostic_async_executor-0.2.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate agnostic_async_executor 0.2.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate agnostic_async_executor 0.2.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a88089b938be710e467f4f7f6fb503454aa023c9a0c6efaf9012b6c316539ab
[INFO] running `Command { std: "docker" "start" "-a" "8a88089b938be710e467f4f7f6fb503454aa023c9a0c6efaf9012b6c316539ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a88089b938be710e467f4f7f6fb503454aa023c9a0c6efaf9012b6c316539ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a88089b938be710e467f4f7f6fb503454aa023c9a0c6efaf9012b6c316539ab", kill_on_drop: false }`
[INFO] [stdout] 8a88089b938be710e467f4f7f6fb503454aa023c9a0c6efaf9012b6c316539ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20428c3c3a1cc1c23223e226e1cf2e2b4854c152b4947cbe6488f5310a281cae
[INFO] running `Command { std: "docker" "start" "-a" "20428c3c3a1cc1c23223e226e1cf2e2b4854c152b4947cbe6488f5310a281cae", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking agnostic_async_executor v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]   --> src/executors/local_agnostic_executor.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use futures::task::LocalSpawnExt;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]   --> src/executors/local_agnostic_executor.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use futures::task::LocalSpawnExt;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `futures`
[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)]` 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] 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)]` 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]: 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 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: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: 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 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: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: 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 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: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0433.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `agnostic_async_executor` due to 4 previous errors; 6 warnings emitted
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0392]: 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 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: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "20428c3c3a1cc1c23223e226e1cf2e2b4854c152b4947cbe6488f5310a281cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20428c3c3a1cc1c23223e226e1cf2e2b4854c152b4947cbe6488f5310a281cae", kill_on_drop: false }`
[INFO] [stdout] 20428c3c3a1cc1c23223e226e1cf2e2b4854c152b4947cbe6488f5310a281cae