[INFO] updating cached repository eoxxs/differential-aggregate-query
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/eoxxs/differential-aggregate-query
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/eoxxs/differential-aggregate-query" "work/ex/beta-1.38-1/sources/1.37.0/gh/eoxxs/differential-aggregate-query"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/eoxxs/differential-aggregate-query'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/eoxxs/differential-aggregate-query" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eoxxs/differential-aggregate-query"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eoxxs/differential-aggregate-query'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74676c1f142ec38772493440e085dc56af7fa005
[INFO] sha for GitHub repo eoxxs/differential-aggregate-query: 74676c1f142ec38772493440e085dc56af7fa005
[INFO] validating manifest of eoxxs/differential-aggregate-query on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of eoxxs/differential-aggregate-query on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing eoxxs/differential-aggregate-query
[INFO] finished frobbing eoxxs/differential-aggregate-query
[INFO] frobbed toml for eoxxs/differential-aggregate-query written to work/ex/beta-1.38-1/sources/1.37.0/gh/eoxxs/differential-aggregate-query/Cargo.toml
[INFO] started frobbing eoxxs/differential-aggregate-query
[INFO] finished frobbing eoxxs/differential-aggregate-query
[INFO] frobbed toml for eoxxs/differential-aggregate-query written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eoxxs/differential-aggregate-query/Cargo.toml
[INFO] crate eoxxs/differential-aggregate-query already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/eoxxs/differential-aggregate-query/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing eoxxs/differential-aggregate-query against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/eoxxs/differential-aggregate-query:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 07ccc5abae16760c4e45b30c5d694fb6232029189fc5c9a760c358ae05c87e20
[INFO] running `"docker" "start" "-a" "07ccc5abae16760c4e45b30c5d694fb6232029189fc5c9a760c358ae05c87e20"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling timely_bytes v0.9.0
[INFO] [stderr]    Compiling timely_logging v0.9.0
[INFO] [stderr]    Compiling timely_sort v0.1.6
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling timely_communication v0.9.0
[INFO] [stderr]    Compiling timely v0.9.0
[INFO] [stderr]    Compiling differential-dataflow v0.9.0
[INFO] [stderr]    Compiling differential-aggregate-query v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(drain_filter)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AsCollection`
[INFO] [stderr]   --> src/lib.rs:19:41
[INFO] [stderr]    |
[INFO] [stderr] 19 | use differential_dataflow::collection::{AsCollection, Collection};
[INFO] [stderr]    |                                         ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Count`
[INFO] [stderr]   --> src/lib.rs:23:53
[INFO] [stderr]    |
[INFO] [stderr] 23 | use differential_dataflow::operators::{Consolidate, Count};
[INFO] [stderr]    |                                                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Neg`
[INFO] [stderr]  --> src/semiring/max_prod.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ops::{AddAssign, Neg, Mul};
[INFO] [stderr]   |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Neg`
[INFO] [stderr]  --> src/semiring/sum_prod.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{AddAssign, Neg, Mul};
[INFO] [stderr]   |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `timely::dataflow::operators`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use timely::dataflow::operators::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `differential-aggregate-query`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "07ccc5abae16760c4e45b30c5d694fb6232029189fc5c9a760c358ae05c87e20"`
[INFO] running `"docker" "rm" "-f" "07ccc5abae16760c4e45b30c5d694fb6232029189fc5c9a760c358ae05c87e20"`
[INFO] [stdout] 07ccc5abae16760c4e45b30c5d694fb6232029189fc5c9a760c358ae05c87e20