[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] testing twissel/bench-locks against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks" "/workspace/builds/worker-11/source", kill_on_drop: false }` [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 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-11/source/rust-toolchain [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 `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating git repository `https://github.com/tokio-rs/tokio` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded async-trait v0.1.11 [INFO] [stderr] Downloaded async-std v0.99.4 [INFO] [stderr] Downloaded tracing-attributes v0.1.2 [INFO] [stderr] Downloaded futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tracing v0.1.7 [INFO] running `Command { std: "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" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c9da12d789ecd63562569ff8ca37525a24f71ac80d242c24237b7a6f98823765 [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" "c9da12d789ecd63562569ff8ca37525a24f71ac80d242c24237b7a6f98823765", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c9da12d789ecd63562569ff8ca37525a24f71ac80d242c24237b7a6f98823765", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9da12d789ecd63562569ff8ca37525a24f71ac80d242c24237b7a6f98823765", kill_on_drop: false }` [INFO] [stdout] c9da12d789ecd63562569ff8ca37525a24f71ac80d242c24237b7a6f98823765 [INFO] running `Command { std: "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" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "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] fd14e998e570a361b4404623ad9c85094f114326ae653dcb53c6f2df57c76916 [INFO] running `Command { std: "docker" "start" "-a" "fd14e998e570a361b4404623ad9c85094f114326ae653dcb53c6f2df57c76916", kill_on_drop: false }` [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 syn v0.15.44 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling lock_api v0.3.1 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling tracing-core v0.1.5 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling rustc_version v0.2.3 [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 memoffset v0.5.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling getrandom v0.1.11 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.0 [INFO] [stderr] Compiling tokio-io v0.2.0-alpha.4 (https://github.com/tokio-rs/tokio#9766cd64) [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 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-fs v0.2.0-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-timer v0.3.0-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] | ^^^^^^^^^^^^^^^^^^^ first, await occurs here, with `counter` maybe used later... [INFO] [stdout] note: `counter` is later dropped here [INFO] [stdout] --> src/main.rs:135:60 [INFO] [stdout] | [INFO] [stdout] 135 | let fut = async move { counter.get().await }; [INFO] [stdout] | ------- ^ [INFO] [stdout] | | [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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ first, await occurs here, with `counter` maybe used later... [INFO] [stdout] note: `counter` is later dropped here [INFO] [stdout] --> src/main.rs:140:47 [INFO] [stdout] | [INFO] [stdout] 140 | counter.set(new_val).await; [INFO] [stdout] | ------- ^ [INFO] [stdout] | | [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` due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "fd14e998e570a361b4404623ad9c85094f114326ae653dcb53c6f2df57c76916", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd14e998e570a361b4404623ad9c85094f114326ae653dcb53c6f2df57c76916", kill_on_drop: false }` [INFO] [stdout] fd14e998e570a361b4404623ad9c85094f114326ae653dcb53c6f2df57c76916