[INFO] fetching crate nrf52840-platform 0.1.2...
[INFO] checking nrf52840-platform-0.1.2 against beta for pr-78714
[INFO] extracting crate nrf52840-platform 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nrf52840-platform 0.1.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nrf52840-platform 0.1.2
[INFO] finished tweaking crates.io crate nrf52840-platform 0.1.2
[INFO] tweaked toml for crates.io crate nrf52840-platform 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate nrf52840-platform 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ef21b398a14c68b912a91a75b3f1aec0fd512ebb18eb322d819d492bea770ac
[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" "8ef21b398a14c68b912a91a75b3f1aec0fd512ebb18eb322d819d492bea770ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ef21b398a14c68b912a91a75b3f1aec0fd512ebb18eb322d819d492bea770ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ef21b398a14c68b912a91a75b3f1aec0fd512ebb18eb322d819d492bea770ac", kill_on_drop: false }`
[INFO] [stdout] 8ef21b398a14c68b912a91a75b3f1aec0fd512ebb18eb322d819d492bea770ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b1009487f2bd655f0baedd399577365e1fc5e4ae91dac2c1e5ae8451b2ec7bb
[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" "4b1009487f2bd655f0baedd399577365e1fc5e4ae91dac2c1e5ae8451b2ec7bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling cortex-m-rt v0.6.11
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]    Compiling nrf52840-pac v0.8.0
[INFO] [stderr]    Compiling fpa v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling nrf52840-hal v0.8.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking core-futures-tls v0.1.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core-futures-tls-0.1.1/src/lib.rs:78:1
[INFO] [stdout]    |
[INFO] [stdout] 78 | #![feature(thread_local, generator_trait, optin_builtin_traits)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core-futures-tls-0.1.1/src/future.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T: Generator<Yield = ()>> !Unpin for GenFuture<T> {}
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #68318 <https://github.com/rust-lang/rust/issues/68318> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core-futures-tls-0.1.1/src/future.rs:38:43
[INFO] [stdout]    |
[INFO] [stdout] 38 |         set_task_context(cx, || match gen.resume() {
[INFO] [stdout]    |                                           ^^^^^^- supplied 0 arguments
[INFO] [stdout]    |
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 |         set_task_context(cx, || match gen.resume(()) {
[INFO] [stdout]    |                                                  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `core-futures-tls`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4b1009487f2bd655f0baedd399577365e1fc5e4ae91dac2c1e5ae8451b2ec7bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b1009487f2bd655f0baedd399577365e1fc5e4ae91dac2c1e5ae8451b2ec7bb", kill_on_drop: false }`
[INFO] [stdout] 4b1009487f2bd655f0baedd399577365e1fc5e4ae91dac2c1e5ae8451b2ec7bb