[INFO] cloning 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" "clone" "--bare" "https://github.com/twissel/bench-locks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 984b1c6832478652efbbdc3cc3bc9a1f842cfd10 [INFO] checking twissel/bench-locks against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/twissel/bench-locks on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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-8/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/tokio-rs/tokio` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tracing-attributes v0.1.2 [INFO] [stderr] Downloaded futures-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-timer v0.3.0 [INFO] [stderr] Downloaded async-task v1.0.0 [INFO] [stderr] Downloaded async-std v0.99.4 [INFO] [stderr] Downloaded tracing v0.1.7 [INFO] [stderr] Downloaded futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded proc-macro-hack v0.5.9 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded async-trait v0.1.11 [INFO] [stderr] Downloaded tracing-core v0.1.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 56dbf7c41b0d4908058ceb6d2230c78e494d681ad033fccb77bbc84d215342e3 [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" "56dbf7c41b0d4908058ceb6d2230c78e494d681ad033fccb77bbc84d215342e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56dbf7c41b0d4908058ceb6d2230c78e494d681ad033fccb77bbc84d215342e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56dbf7c41b0d4908058ceb6d2230c78e494d681ad033fccb77bbc84d215342e3", kill_on_drop: false }` [INFO] [stdout] 56dbf7c41b0d4908058ceb6d2230c78e494d681ad033fccb77bbc84d215342e3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cd77ef42ab585f1410202122f2ee8089ff2e6823c51d593833a4fa11379d5a06 [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" "cd77ef42ab585f1410202122f2ee8089ff2e6823c51d593833a4fa11379d5a06", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling proc-macro2 v1.0.2 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling getrandom v0.1.11 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking lock_api v0.3.1 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking tracing-core v0.1.5 [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] Checking futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking async-task v1.0.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking tokio-io v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [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] Checking tracing v0.1.7 [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 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-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-net 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] [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: 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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "cd77ef42ab585f1410202122f2ee8089ff2e6823c51d593833a4fa11379d5a06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd77ef42ab585f1410202122f2ee8089ff2e6823c51d593833a4fa11379d5a06", kill_on_drop: false }` [INFO] [stdout] cd77ef42ab585f1410202122f2ee8089ff2e6823c51d593833a4fa11379d5a06