[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] building twissel/bench-locks against master#c2804e6ec2c29a5c7368600ea173b890e2655c3d for pr-97334-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwissel%2Fbench-locks" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/twissel/bench-locks on toolchain c2804e6ec2c29a5c7368600ea173b890e2655c3d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1/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-1/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" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "fetch" "--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 c2-chacha v0.2.2 [INFO] [stderr] Downloaded lock_api v0.3.1 [INFO] [stderr] Downloaded tracing-core v0.1.5 [INFO] [stderr] Downloaded rand v0.7.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.2 [INFO] [stderr] Downloaded pin-utils v0.1.0-alpha.4 [INFO] [stderr] Downloaded proc-macro-nested v0.1.3 [INFO] [stderr] Downloaded arrayvec v0.4.11 [INFO] [stderr] Downloaded nodrop v0.1.13 [INFO] [stderr] Downloaded async-task v1.0.0 [INFO] [stderr] Downloaded tracing-attributes v0.1.2 [INFO] [stderr] Downloaded crossbeam-channel v0.3.9 [INFO] [stderr] Downloaded smallvec v0.6.10 [INFO] [stderr] Downloaded mio v0.6.19 [INFO] [stderr] Downloaded tracing v0.1.7 [INFO] [stderr] Downloaded ppv-lite86 v0.2.5 [INFO] [stderr] Downloaded mio-uds v0.6.7 [INFO] [stderr] Downloaded iovec v0.1.2 [INFO] [stderr] Downloaded net2 v0.2.33 [INFO] [stderr] Downloaded futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded proc-macro-hack v0.5.9 [INFO] [stderr] Downloaded wasi v0.5.0 [INFO] [stderr] Downloaded futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-timer v0.3.0 [INFO] [stderr] Downloaded futures-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded async-std v0.99.4 [INFO] [stderr] Downloaded futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded async-trait v0.1.11 [INFO] [stderr] Downloaded getrandom v0.1.11 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ff42d07df1f61ef44a4967b819cbfc71d6c75fa30edfe8497dea83ea8df28dc4 [INFO] running `Command { std: "docker" "start" "-a" "ff42d07df1f61ef44a4967b819cbfc71d6c75fa30edfe8497dea83ea8df28dc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff42d07df1f61ef44a4967b819cbfc71d6c75fa30edfe8497dea83ea8df28dc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff42d07df1f61ef44a4967b819cbfc71d6c75fa30edfe8497dea83ea8df28dc4", kill_on_drop: false }` [INFO] [stdout] ff42d07df1f61ef44a4967b819cbfc71d6c75fa30edfe8497dea83ea8df28dc4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "RUSTDOCFLAGS=--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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+c2804e6ec2c29a5c7368600ea173b890e2655c3d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc49de12f27fe0e3c43ac9d9217b9cbc4f02595d50ac5a7726c6339c908bc1c9 [INFO] running `Command { std: "docker" "start" "-a" "dc49de12f27fe0e3c43ac9d9217b9cbc4f02595d50ac5a7726c6339c908bc1c9", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling spin v0.5.2 [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 proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling getrandom v0.1.11 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling ppv-lite86 v0.2.5 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling arrayvec v0.4.11 [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 lock_api v0.3.1 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling tracing-core v0.1.5 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [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 quote v1.0.2 [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 quote v0.6.13 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [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 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] 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:136:57 [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:135:53 [INFO] [stdout] | [INFO] [stdout] 135 | let fut = async move { counter.get().await }; [INFO] [stdout] | ------- ^^^^^^ await occurs here, with `counter` maybe used later [INFO] [stdout] | | [INFO] [stdout] | has type `&C` which is not `Send` [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] 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] note: required by a bound in `<(dyn Executor + 'static)>::spawn_with_handle` [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/tokio-377c595163f99a10/9766cd6/tokio-executor/src/executor.rs:160:23 [INFO] [stdout] | [INFO] [stdout] 160 | Fut: Future + Send + 'static, [INFO] [stdout] | ^^^^ required by this bound in `<(dyn Executor + 'static)>::spawn_with_handle` [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:143:57 [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:140:41 [INFO] [stdout] | [INFO] [stdout] 140 | counter.set(new_val).await; [INFO] [stdout] | ------- ^^^^^^ await occurs here, with `counter` maybe used later [INFO] [stdout] | | [INFO] [stdout] | has type `&C` which is not `Send` [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] 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] note: required by a bound in `<(dyn Executor + 'static)>::spawn_with_handle` [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/tokio-377c595163f99a10/9766cd6/tokio-executor/src/executor.rs:160:23 [INFO] [stdout] | [INFO] [stdout] 160 | Fut: Future + Send + 'static, [INFO] [stdout] | ^^^^ required by this bound in `<(dyn Executor + 'static)>::spawn_with_handle` [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" "dc49de12f27fe0e3c43ac9d9217b9cbc4f02595d50ac5a7726c6339c908bc1c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc49de12f27fe0e3c43ac9d9217b9cbc4f02595d50ac5a7726c6339c908bc1c9", kill_on_drop: false }` [INFO] [stdout] dc49de12f27fe0e3c43ac9d9217b9cbc4f02595d50ac5a7726c6339c908bc1c9