[INFO] fetching crate declarative-dataflow 0.2.0...
[INFO] checking declarative-dataflow-0.2.0 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate declarative-dataflow 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate declarative-dataflow 0.2.0 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate declarative-dataflow 0.2.0
[INFO] finished tweaking crates.io crate declarative-dataflow 0.2.0
[INFO] tweaked toml for crates.io crate declarative-dataflow 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded abomonation_derive v0.3.0
[INFO] [stderr]   Downloaded timely_bytes v0.10.0
[INFO] [stderr]   Downloaded timely_logging v0.10.0
[INFO] [stderr]   Downloaded timely_sort v0.1.6
[INFO] [stderr]   Downloaded timely v0.10.0
[INFO] [stderr]   Downloaded abomonation v0.7.3
[INFO] [stderr]   Downloaded timely_communication v0.10.0
[INFO] [stderr]   Downloaded abomonation_derive v0.4.0
[INFO] [stderr]   Downloaded fixed v0.3.3
[INFO] [stderr]   Downloaded differential-dataflow v0.10.0
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dba719f6888caf8d39886ea69330c83b23442563ffd86744c3532a3261e60fc0
[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" "dba719f6888caf8d39886ea69330c83b23442563ffd86744c3532a3261e60fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dba719f6888caf8d39886ea69330c83b23442563ffd86744c3532a3261e60fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dba719f6888caf8d39886ea69330c83b23442563ffd86744c3532a3261e60fc0", kill_on_drop: false }`
[INFO] [stdout] dba719f6888caf8d39886ea69330c83b23442563ffd86744c3532a3261e60fc0
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32fdff4364fea0a78a9b9e6e5dd562dc7d8f5fd9470a1062e012daea4e3b033e
[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" "32fdff4364fea0a78a9b9e6e5dd562dc7d8f5fd9470a1062e012daea4e3b033e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking timely_bytes v0.10.0
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking timely_logging v0.10.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking timely_sort v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling abomonation_derive v0.4.0
[INFO] [stderr]     Checking timely_communication v0.10.0
[INFO] [stderr]     Checking timely v0.10.0
[INFO] [stderr]     Checking differential-dataflow v0.10.0
[INFO] [stdout] error[E0271]: type mismatch resolving `<std::array::IntoIter<std::option::Option<<G as ScopeParent>::Timestamp>, 2_usize> as Iterator>::Item == &_`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/differential-dataflow-0.10.0/src/operators/arrange/arrangement.rs:396:31
[INFO] [stdout]     |
[INFO] [stdout] 396 |                 ].into_iter().cloned().filter_map(|t| t).min();
[INFO] [stdout]     |                               ^^^^^^ expected enum `std::option::Option`, found reference
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected type `std::option::Option<<G as ScopeParent>::Timestamp>`
[INFO] [stdout]             found reference `&_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `filter_map` exists for struct `Cloned<std::array::IntoIter<std::option::Option<<G as ScopeParent>::Timestamp>, 2_usize>>`, but its trait bounds were not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/differential-dataflow-0.10.0/src/operators/arrange/arrangement.rs:396:40
[INFO] [stdout]     |
[INFO] [stdout] 396 |                    ].into_iter().cloned().filter_map(|t| t).min();
[INFO] [stdout]     |                                           ^^^^^^^^^^ method cannot be called on `Cloned<std::array::IntoIter<std::option::Option<<G as ScopeParent>::Timestamp>, 2_usize>>` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `<std::array::IntoIter<std::option::Option<<G as ScopeParent>::Timestamp>, 2_usize> as Iterator>::Item = &_`
[INFO] [stdout]             which is required by `Cloned<std::array::IntoIter<std::option::Option<<G as ScopeParent>::Timestamp>, 2_usize>>: Iterator`
[INFO] [stdout]             `Cloned<std::array::IntoIter<std::option::Option<<G as ScopeParent>::Timestamp>, 2_usize>>: Iterator`
[INFO] [stdout]             which is required by `&mut Cloned<std::array::IntoIter<std::option::Option<<G as ScopeParent>::Timestamp>, 2_usize>>: Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0271, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `differential-dataflow`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "32fdff4364fea0a78a9b9e6e5dd562dc7d8f5fd9470a1062e012daea4e3b033e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32fdff4364fea0a78a9b9e6e5dd562dc7d8f5fd9470a1062e012daea4e3b033e", kill_on_drop: false }`
[INFO] [stdout] 32fdff4364fea0a78a9b9e6e5dd562dc7d8f5fd9470a1062e012daea4e3b033e