[INFO] updating cached repository https://github.com/twissel/bench-locks [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 984b1c6832478652efbbdc3cc3bc9a1f842cfd10 [INFO] testing twissel/bench-locks against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/twissel/bench-locks on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-7/source/Cargo.toml [INFO] crate git repo https://github.com/twissel/bench-locks already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d6bca85b92e7cae33b703c5c46f245a149f5ab34801e5b1a506191522a4aa7cb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d6bca85b92e7cae33b703c5c46f245a149f5ab34801e5b1a506191522a4aa7cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d6bca85b92e7cae33b703c5c46f245a149f5ab34801e5b1a506191522a4aa7cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6bca85b92e7cae33b703c5c46f245a149f5ab34801e5b1a506191522a4aa7cb", kill_on_drop: false }` [INFO] [stdout] d6bca85b92e7cae33b703c5c46f245a149f5ab34801e5b1a506191522a4aa7cb [INFO] running `Command { std: "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6c4057a34dd219b12ee2135cb5320bf10aa8726d1067aafc0bbfea3459c01847 [INFO] running `Command { std: "docker" "start" "-a" "6c4057a34dd219b12ee2135cb5320bf10aa8726d1067aafc0bbfea3459c01847", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.2 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling getrandom v0.1.11 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling ppv-lite86 v0.2.5 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling lock_api v0.3.1 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling tracing-core v0.1.5 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling crossbeam-channel v0.3.9 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling async-task v1.0.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling tokio-io v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling tokio-codec v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [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-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling tracing v0.1.7 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling tokio-sync v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling futures-timer v0.3.0 [INFO] [stderr] Compiling tokio-executor v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling async-std v0.99.4 [INFO] [stderr] Compiling tokio-timer v0.3.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling tokio-net v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling tokio-fs v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling tokio v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [INFO] [stderr] Compiling async-learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: future cannot be sent between threads safely [INFO] [stdout] --> src/main.rs:136:39 [INFO] [stdout] | [INFO] [stdout] 136 | futures.push(executor.spawn_with_handle(fut).unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ future created by async block is not `Send` [INFO] [stdout] | [INFO] [stdout] note: future is not `Send` as this value is used across an await [INFO] [stdout] --> src/main.rs:135:40 [INFO] [stdout] | [INFO] [stdout] 135 | let fut = async move { counter.get().await }; [INFO] [stdout] | -------^^^^^^^^^^^^ - `counter` is later dropped here [INFO] [stdout] | | [INFO] [stdout] | await occurs here, with `counter` maybe used later [INFO] [stdout] | has type `&C` which is not `Send` [INFO] [stdout] help: consider moving this into a `let` binding to create a shorter lived borrow [INFO] [stdout] --> src/main.rs:135:40 [INFO] [stdout] | [INFO] [stdout] 135 | let fut = async move { counter.get().await }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] help: consider further restricting this bound [INFO] [stdout] | [INFO] [stdout] 117 | async fn test( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: future cannot be sent between threads safely [INFO] [stdout] --> src/main.rs:143:39 [INFO] [stdout] | [INFO] [stdout] 143 | futures.push(executor.spawn_with_handle(fut).unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ future created by async block is not `Send` [INFO] [stdout] | [INFO] [stdout] note: future is not `Send` as this value is used across an await [INFO] [stdout] --> src/main.rs:140:21 [INFO] [stdout] | [INFO] [stdout] 140 | counter.set(new_val).await; [INFO] [stdout] | -------^^^^^^^^^^^^^^^^^^^- `counter` is later dropped here [INFO] [stdout] | | [INFO] [stdout] | await occurs here, with `counter` maybe used later [INFO] [stdout] | has type `&C` which is not `Send` [INFO] [stdout] help: consider moving this into a `let` binding to create a shorter lived borrow [INFO] [stdout] --> src/main.rs:140:21 [INFO] [stdout] | [INFO] [stdout] 140 | counter.set(new_val).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: consider further restricting this bound [INFO] [stdout] | [INFO] [stdout] 117 | async fn test( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `async-learn`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "6c4057a34dd219b12ee2135cb5320bf10aa8726d1067aafc0bbfea3459c01847", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c4057a34dd219b12ee2135cb5320bf10aa8726d1067aafc0bbfea3459c01847", kill_on_drop: false }` [INFO] [stdout] 6c4057a34dd219b12ee2135cb5320bf10aa8726d1067aafc0bbfea3459c01847