[INFO] fetching crate locklessness 0.2.1...
[INFO] checking locklessness-0.2.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate locklessness 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate locklessness 0.2.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate locklessness 0.2.1
[INFO] finished tweaking crates.io crate locklessness 0.2.1
[INFO] tweaked toml for crates.io crate locklessness 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", 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] b0ea92e85a14c17d20be174d3bf1501e90b7e799292ce6f2764dab8ce8b6f8d0
[INFO] running `Command { std: "docker" "start" "-a" "b0ea92e85a14c17d20be174d3bf1501e90b7e799292ce6f2764dab8ce8b6f8d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ea92e85a14c17d20be174d3bf1501e90b7e799292ce6f2764dab8ce8b6f8d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ea92e85a14c17d20be174d3bf1501e90b7e799292ce6f2764dab8ce8b6f8d0", kill_on_drop: false }`
[INFO] [stdout] b0ea92e85a14c17d20be174d3bf1501e90b7e799292ce6f2764dab8ce8b6f8d0
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--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] e7800bddfb292e8e1836b4aef7f41f250f5464f83809c173ce8f320ee15dc3d9
[INFO] running `Command { std: "docker" "start" "-a" "e7800bddfb292e8e1836b4aef7f41f250f5464f83809c173ce8f320ee15dc3d9", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking locklessness v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/containers/atomic_cell.rs:35:73
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let scratch = Scratch::new(storage.none_storing_iter(id_limit));;
[INFO] [stdout]    |                                                                         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'futures::task::park': renamed to `current`
[INFO] [stdout]    --> src/sync/mpsc_queue.rs:178:47
[INFO] [stdout]     |
[INFO] [stdout] 178 |         self.task_storage.replace(place, Some(task::park()));
[INFO] [stdout]     |                                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/containers/atomic_cell.rs:35:73
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let scratch = Scratch::new(storage.none_storing_iter(id_limit));;
[INFO] [stdout]    |                                                                         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'futures::task::park': renamed to `current`
[INFO] [stdout]    --> src/sync/mpmc_queue.rs:201:47
[INFO] [stdout]     |
[INFO] [stdout] 201 |         self.task_storage.replace(place, Some(task::park()));
[INFO] [stdout]     |                                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'futures::task::park': renamed to `current`
[INFO] [stdout]    --> src/sync/mpsc_queue.rs:178:47
[INFO] [stdout]     |
[INFO] [stdout] 178 |         self.task_storage.replace(place, Some(task::park()));
[INFO] [stdout]     |                                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'futures::task::park': renamed to `current`
[INFO] [stdout]    --> src/sync/mpmc_queue.rs:201:47
[INFO] [stdout]     |
[INFO] [stdout] 201 |         self.task_storage.replace(place, Some(task::park()));
[INFO] [stdout]     |                                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'futures::task::Task::unpark': renamed to `notify`
[INFO] [stdout]    --> src/sync/mpsc_queue.rs:170:18
[INFO] [stdout]     |
[INFO] [stdout] 170 |             task.unpark();
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'futures::task::Task::unpark': renamed to `notify`
[INFO] [stdout]    --> src/sync/mpmc_queue.rs:193:18
[INFO] [stdout]     |
[INFO] [stdout] 193 |             task.unpark();
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `locklessness`.
[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] warning: use of deprecated item 'futures::task::Task::unpark': renamed to `notify`
[INFO] [stdout]    --> src/sync/mpsc_queue.rs:170:18
[INFO] [stdout]     |
[INFO] [stdout] 170 |             task.unpark();
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'futures::task::Task::unpark': renamed to `notify`
[INFO] [stdout]    --> src/sync/mpmc_queue.rs:193:18
[INFO] [stdout]     |
[INFO] [stdout] 193 |             task.unpark();
[INFO] [stdout]     |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e7800bddfb292e8e1836b4aef7f41f250f5464f83809c173ce8f320ee15dc3d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7800bddfb292e8e1836b4aef7f41f250f5464f83809c173ce8f320ee15dc3d9", kill_on_drop: false }`
[INFO] [stdout] e7800bddfb292e8e1836b4aef7f41f250f5464f83809c173ce8f320ee15dc3d9
