[INFO] fetching crate differential-dataflow 0.11.0...
[INFO] testing differential-dataflow-0.11.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate differential-dataflow 0.11.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate differential-dataflow 0.11.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate differential-dataflow 0.11.0
[INFO] finished tweaking crates.io crate differential-dataflow 0.11.0
[INFO] tweaked toml for crates.io crate differential-dataflow 0.11.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate differential-dataflow 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap v0.5.2
[INFO] [stderr]   Downloaded graph_map v0.1.0
[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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] 178a839334600bdb561e0bd364a853dd9e16c96fbd4b6cdbb290a7f23a9e0628
[INFO] running `Command { std: "docker" "start" "-a" "178a839334600bdb561e0bd364a853dd9e16c96fbd4b6cdbb290a7f23a9e0628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "178a839334600bdb561e0bd364a853dd9e16c96fbd4b6cdbb290a7f23a9e0628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178a839334600bdb561e0bd364a853dd9e16c96fbd4b6cdbb290a7f23a9e0628", kill_on_drop: false }`
[INFO] [stdout] 178a839334600bdb561e0bd364a853dd9e16c96fbd4b6cdbb290a7f23a9e0628
[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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bee098e9c7be1ffef6cdf0154bf27e04c7c53e13ae3106f76818973e79d1bdcc
[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" "bee098e9c7be1ffef6cdf0154bf27e04c7c53e13ae3106f76818973e79d1bdcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling timely_bytes v0.11.0
[INFO] [stderr]    Compiling timely_logging v0.11.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling timely_sort v0.1.6
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling timely_communication v0.11.1
[INFO] [stderr]    Compiling timely v0.11.1
[INFO] [stderr]    Compiling differential-dataflow v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]    --> src/operators/arrange/arrangement.rs:397:19
[INFO] [stdout]     |
[INFO] [stdout] 397 |                 ].into_iter().cloned().filter_map(|t| t).min();
[INFO] [stdout]     |                   ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.86s
[INFO] running `Command { std: "docker" "inspect" "bee098e9c7be1ffef6cdf0154bf27e04c7c53e13ae3106f76818973e79d1bdcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bee098e9c7be1ffef6cdf0154bf27e04c7c53e13ae3106f76818973e79d1bdcc", kill_on_drop: false }`
[INFO] [stdout] bee098e9c7be1ffef6cdf0154bf27e04c7c53e13ae3106f76818973e79d1bdcc
[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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1351d48be9de65a11516af0dad7f630219654a952e1cc8dc966e82193c392c3
[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" "d1351d48be9de65a11516af0dad7f630219654a952e1cc8dc966e82193c392c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]    --> src/operators/arrange/arrangement.rs:397:19
[INFO] [stdout]     |
[INFO] [stdout] 397 |                 ].into_iter().cloned().filter_map(|t| t).min();
[INFO] [stdout]     |                   ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling memmap v0.5.2
[INFO] [stderr]    Compiling graph_map v0.1.0
[INFO] [stderr]    Compiling differential-dataflow v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `differential_dataflow::operators::Count`
[INFO] [stdout]  --> examples/hello.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use differential_dataflow::operators::Count;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `differential-dataflow`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name degrees examples/degrees.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=290cd2802944eaba -C extra-filename=-290cd2802944eaba --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern abomonation=/opt/rustwide/target/debug/deps/libabomonation-a301904bb3651403.rlib --extern abomonation_derive=/opt/rustwide/target/debug/deps/libabomonation_derive-5d8f7cca9bd2dabd.so --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-4a8145f39c6f83ac.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-2201d8a056ef820c.rlib --extern fnv=/opt/rustwide/target/debug/deps/libfnv-efbf2f9463bbe447.rlib --extern graph_map=/opt/rustwide/target/debug/deps/libgraph_map-3225feefb721b17f.rlib --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-4849eae6e2d6d4d4.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-9d123eadeb84a849.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-10a65d4265f1530c.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-5e58dc32cae34ed6.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-28b130d1c676bf2a.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-0d6cea0473836f6a.rlib --extern timely=/opt/rustwide/target/debug/deps/libtimely-0444657b61013d8d.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-ac5f936f70323705.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d1351d48be9de65a11516af0dad7f630219654a952e1cc8dc966e82193c392c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1351d48be9de65a11516af0dad7f630219654a952e1cc8dc966e82193c392c3", kill_on_drop: false }`
[INFO] [stdout] d1351d48be9de65a11516af0dad7f630219654a952e1cc8dc966e82193c392c3