[INFO] updating cached repository https://github.com/twissel/bench-locks
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 984b1c6832478652efbbdc3cc3bc9a1f842cfd10
[INFO] checking twissel/bench-locks against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twissel/bench-locks on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/twissel/bench-locks
[INFO] finished tweaking git repo https://github.com/twissel/bench-locks
[INFO] tweaked toml for git repo https://github.com/twissel/bench-locks written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/twissel/bench-locks already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f2c5d06dd6291e88cda8aba162c4f674ca28ab103cd09035af2a234ab4b387da
[INFO] running `"docker" "start" "-a" "f2c5d06dd6291e88cda8aba162c4f674ca28ab103cd09035af2a234ab4b387da"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.5
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking async-task v1.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[INFO] [stderr]    Compiling tracing-attributes v0.1.2
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]    Compiling async-trait v0.1.11
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking tracing v0.1.7
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-timer v0.3.0
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking async-std v0.99.4
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking tokio v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64)
[INFO] [stderr]     Checking async-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: future cannot be sent between threads safely
[INFO] [stderr]    --> src/main.rs:136:39
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 futures.push(executor.spawn_with_handle(fut).unwrap());
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^ future is not `Send`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sync` is not implemented for `C`
[INFO] [stderr] note: future is not `Send` as this value is used across an await
[INFO] [stderr]    --> src/main.rs:135:40
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 let fut = async move { counter.get().await };
[INFO] [stderr]     |                                        -------^^^^^^^^^^^^ - `counter` is later dropped here
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        await occurs here, with `counter` maybe used later
[INFO] [stderr]     |                                        has type `&C`
[INFO] [stderr] help: consider moving this into a `let` binding to create a shorter lived borrow
[INFO] [stderr]    --> src/main.rs:135:40
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 let fut = async move { counter.get().await };
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^
[INFO] [stderr] help: consider further restricting this bound
[INFO] [stderr]     |
[INFO] [stderr] 117 | async fn test<C: CounterTrait + std::marker::Sync>(
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: future cannot be sent between threads safely
[INFO] [stderr]    --> src/main.rs:143:39
[INFO] [stderr]     |
[INFO] [stderr] 143 |                 futures.push(executor.spawn_with_handle(fut).unwrap());
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^ future is not `Send`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sync` is not implemented for `C`
[INFO] [stderr] note: future is not `Send` as this value is used across an await
[INFO] [stderr]    --> src/main.rs:140:21
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     counter.set(new_val).await;
[INFO] [stderr]     |                     -------^^^^^^^^^^^^^^^^^^^- `counter` is later dropped here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     await occurs here, with `counter` maybe used later
[INFO] [stderr]     |                     has type `&C`
[INFO] [stderr] help: consider moving this into a `let` binding to create a shorter lived borrow
[INFO] [stderr]    --> src/main.rs:140:21
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     counter.set(new_val).await;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: consider further restricting this bound
[INFO] [stderr]     |
[INFO] [stderr] 117 | async fn test<C: CounterTrait + std::marker::Sync>(
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: future cannot be sent between threads safely
[INFO] [stderr]    --> src/main.rs:136:39
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 futures.push(executor.spawn_with_handle(fut).unwrap());
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^ future is not `Send`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sync` is not implemented for `C`
[INFO] [stderr] note: future is not `Send` as this value is used across an await
[INFO] [stderr]    --> src/main.rs:135:40
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 let fut = async move { counter.get().await };
[INFO] [stderr]     |                                        -------^^^^^^^^^^^^ - `counter` is later dropped here
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        await occurs here, with `counter` maybe used later
[INFO] [stderr]     |                                        has type `&C`
[INFO] [stderr] help: consider moving this into a `let` binding to create a shorter lived borrow
[INFO] [stderr]    --> src/main.rs:135:40
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 let fut = async move { counter.get().await };
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^
[INFO] [stderr] help: consider further restricting this bound
[INFO] [stderr]     |
[INFO] [stderr] 117 | async fn test<C: CounterTrait + std::marker::Sync>(
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: future cannot be sent between threads safely
[INFO] [stderr]    --> src/main.rs:143:39
[INFO] [stderr]     |
[INFO] [stderr] 143 |                 futures.push(executor.spawn_with_handle(fut).unwrap());
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^ future is not `Send`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sync` is not implemented for `C`
[INFO] [stderr] note: future is not `Send` as this value is used across an await
[INFO] [stderr]    --> src/main.rs:140:21
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     counter.set(new_val).await;
[INFO] [stderr]     |                     -------^^^^^^^^^^^^^^^^^^^- `counter` is later dropped here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     await occurs here, with `counter` maybe used later
[INFO] [stderr]     |                     has type `&C`
[INFO] [stderr] help: consider moving this into a `let` binding to create a shorter lived borrow
[INFO] [stderr]    --> src/main.rs:140:21
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     counter.set(new_val).await;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: consider further restricting this bound
[INFO] [stderr]     |
[INFO] [stderr] 117 | async fn test<C: CounterTrait + std::marker::Sync>(
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `async-learn`.
[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 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `async-learn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f2c5d06dd6291e88cda8aba162c4f674ca28ab103cd09035af2a234ab4b387da"`
[INFO] running `"docker" "rm" "-f" "f2c5d06dd6291e88cda8aba162c4f674ca28ab103cd09035af2a234ab4b387da"`
[INFO] [stdout] f2c5d06dd6291e88cda8aba162c4f674ca28ab103cd09035af2a234ab4b387da
