[INFO] fetching crate erdos 0.3.1...
[INFO] checking erdos-0.3.1 against beta for pr-78714
[INFO] extracting crate erdos 0.3.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate erdos 0.3.1 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 erdos 0.3.1
[INFO] finished tweaking crates.io crate erdos 0.3.1
[INFO] tweaked toml for crates.io crate erdos 0.3.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate erdos 0.3.1 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-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cfe2be61fefcab95e019b0926f113ccaba34bb72a4d318329c8d6060aa75461
[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" "0cfe2be61fefcab95e019b0926f113ccaba34bb72a4d318329c8d6060aa75461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cfe2be61fefcab95e019b0926f113ccaba34bb72a4d318329c8d6060aa75461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cfe2be61fefcab95e019b0926f113ccaba34bb72a4d318329c8d6060aa75461", kill_on_drop: false }`
[INFO] [stdout] 0cfe2be61fefcab95e019b0926f113ccaba34bb72a4d318329c8d6060aa75461
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2164131fe4c531717a4f29adfd728f8c7f67caf91e9490fa32c74b8a5b01718c
[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" "2164131fe4c531717a4f29adfd728f8c7f67caf91e9490fa32c74b8a5b01718c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling criterion-macro v0.3.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking tokio-serde v0.3.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]    Compiling erdos v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking tokio-serde-bincode v0.2.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:153:1
[INFO] [stdout]     |
[INFO] [stdout] 153 | #![feature(get_mut_unchecked)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:154:1
[INFO] [stdout]     |
[INFO] [stdout] 154 | #![feature(specialization)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:155:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | #![feature(box_into_pin)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:153:1
[INFO] [stdout]     |
[INFO] [stdout] 153 | #![feature(get_mut_unchecked)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:154:1
[INFO] [stdout]     |
[INFO] [stdout] 154 | #![feature(specialization)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:155:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | #![feature(box_into_pin)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `erdos`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name erdos --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type rlib --crate-type cdylib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=991eebb4e697c687 -C extra-filename=-991eebb4e697c687 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern abomonation=/opt/rustwide/target/debug/deps/libabomonation-bcefed56adfd9128.rmeta --extern abomonation_derive=/opt/rustwide/target/debug/deps/libabomonation_derive-cbb629b3e3e19eb5.so --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-944b08974cdf3964.so --extern bincode=/opt/rustwide/target/debug/deps/libbincode-edd767e9f0a1e431.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-364c148656283980.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-c5714e68d7e46dbf.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-6b67864dd90da446.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-025c9386f17ae1b7.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-322b8f32c915c7b8.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-db88f49d9e5662e7.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-838346e87e697c78.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-13f8ea2f1e73baa5.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0bba5c487ff1d7fa.rmeta --extern slog=/opt/rustwide/target/debug/deps/libslog-e72c3bd4498bdb8c.rmeta --extern slog_term=/opt/rustwide/target/debug/deps/libslog_term-5b28f8211cbdebd1.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-b00a0c0fc4e7e3dd.rmeta --extern tokio_serde_bincode=/opt/rustwide/target/debug/deps/libtokio_serde_bincode-9b06a2111da2be23.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-7549345d85aa8a66.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-6f79a90eccf53770.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2164131fe4c531717a4f29adfd728f8c7f67caf91e9490fa32c74b8a5b01718c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2164131fe4c531717a4f29adfd728f8c7f67caf91e9490fa32c74b8a5b01718c", kill_on_drop: false }`
[INFO] [stdout] 2164131fe4c531717a4f29adfd728f8c7f67caf91e9490fa32c74b8a5b01718c