[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#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/twissel/bench-locks on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494 [INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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-4/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] 905e42e85c4cb19171da86d5dfc7c7cc5f00702f2048c3a8487da09c13a8e0b4 [INFO] running `"docker" "start" "-a" "905e42e85c4cb19171da86d5dfc7c7cc5f00702f2048c3a8487da09c13a8e0b4"` [INFO] [stderr] Checking tracing-core v0.1.5 [INFO] [stderr] Compiling proc-macro2 v1.0.2 [INFO] [stderr] Checking async-task v1.0.0 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking tokio-io v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Checking parking_lot_core v0.6.2 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-codec v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling syn v1.0.5 [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] Checking tracing v0.1.7 [INFO] [stderr] Compiling futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.18 [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 tokio-executor v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Checking futures-timer v0.3.0 [INFO] [stderr] Checking async-std v0.99.4 [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-fs v0.2.0-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] 117 | async fn test( [INFO] [stderr] | -- help: consider further restricting this bound: `C: std::marker::Sync +` [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] [INFO] [stderr] error: future cannot be sent between threads safely [INFO] [stderr] --> src/main.rs:143:39 [INFO] [stderr] | [INFO] [stderr] 117 | async fn test( [INFO] [stderr] | -- help: consider further restricting this bound: `C: std::marker::Sync +` [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] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] error: could not compile `async-learn`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: future cannot be sent between threads safely [INFO] [stderr] --> src/main.rs:136:39 [INFO] [stderr] | [INFO] [stderr] 117 | async fn test( [INFO] [stderr] | -- help: consider further restricting this bound: `C: std::marker::Sync +` [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] [INFO] [stderr] error: future cannot be sent between threads safely [INFO] [stderr] --> src/main.rs:143:39 [INFO] [stderr] | [INFO] [stderr] 117 | async fn test( [INFO] [stderr] | -- help: consider further restricting this bound: `C: std::marker::Sync +` [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] [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" "905e42e85c4cb19171da86d5dfc7c7cc5f00702f2048c3a8487da09c13a8e0b4"` [INFO] running `"docker" "rm" "-f" "905e42e85c4cb19171da86d5dfc7c7cc5f00702f2048c3a8487da09c13a8e0b4"` [INFO] [stdout] 905e42e85c4cb19171da86d5dfc7c7cc5f00702f2048c3a8487da09c13a8e0b4