[INFO] updating cached repository comnik/declarative-dataflow
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/comnik/declarative-dataflow
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/comnik/declarative-dataflow" "work/ex/beta-1.37-6/sources/1.36.0/gh/comnik/declarative-dataflow"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/comnik/declarative-dataflow'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/comnik/declarative-dataflow" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/comnik/declarative-dataflow"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/comnik/declarative-dataflow'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a9589e9d0b9db8d3bba8b55450c5f4036b69bd06
[INFO] sha for GitHub repo comnik/declarative-dataflow: a9589e9d0b9db8d3bba8b55450c5f4036b69bd06
[INFO] validating manifest of comnik/declarative-dataflow on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of comnik/declarative-dataflow on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing comnik/declarative-dataflow
[INFO] finished frobbing comnik/declarative-dataflow
[INFO] frobbed toml for comnik/declarative-dataflow written to work/ex/beta-1.37-6/sources/1.36.0/gh/comnik/declarative-dataflow/Cargo.toml
[INFO] started frobbing comnik/declarative-dataflow
[INFO] finished frobbing comnik/declarative-dataflow
[INFO] frobbed toml for comnik/declarative-dataflow written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/comnik/declarative-dataflow/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/TimelyDataflow/differential-dataflow`
[INFO] [stderr]     Updating git repository `https://github.com/TimelyDataflow/timely-dataflow`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/TimelyDataflow/differential-dataflow`
[INFO] [stderr]     Updating git repository `https://github.com/TimelyDataflow/timely-dataflow`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing comnik/declarative-dataflow against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/comnik/declarative-dataflow:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 9e34cbbaf0c863a8cf00518fb25cd6319e95309a7006a4d48614b3b30ff7e8c2
[INFO] running `"docker" "start" "-a" "9e34cbbaf0c863a8cf00518fb25cd6319e95309a7006a4d48614b3b30ff7e8c2"`
[INFO] [stderr]    Compiling timely_logging v0.10.0 (https://github.com/TimelyDataflow/timely-dataflow#a1a3702a)
[INFO] [stderr]    Compiling timely_bytes v0.10.0 (https://github.com/TimelyDataflow/timely-dataflow#a1a3702a)
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling timely_sort v0.1.6
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]    Compiling abomonation_derive v0.4.0
[INFO] [stderr]    Compiling timely_communication v0.10.0 (https://github.com/TimelyDataflow/timely-dataflow#a1a3702a)
[INFO] [stderr]    Compiling timely v0.10.0 (https://github.com/TimelyDataflow/timely-dataflow#a1a3702a)
[INFO] [stderr]    Compiling differential-dataflow v0.10.0 (https://github.com/TimelyDataflow/differential-dataflow#c9d35ce2)
[INFO] [stderr]    Compiling declarative-dataflow v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:20:43
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>>;
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:24:40
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var>;
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn can_extend(&self, prefix: &AsBinding, target: Var) -> bool {
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:42:41
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]    |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:113:40
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:122:43
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:156:40
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:168:43
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:220:40
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:224:43
[INFO] [stderr]     |
[INFO] [stderr] 224 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:257:40
[INFO] [stderr]     |
[INFO] [stderr] 257 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:265:43
[INFO] [stderr]     |
[INFO] [stderr] 265 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:323:40
[INFO] [stderr]     |
[INFO] [stderr] 323 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:335:43
[INFO] [stderr]     |
[INFO] [stderr] 335 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:523:41
[INFO] [stderr]     |
[INFO] [stderr] 523 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:527:44
[INFO] [stderr]     |
[INFO] [stderr] 527 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:764:40
[INFO] [stderr]     |
[INFO] [stderr] 764 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:771:43
[INFO] [stderr]     |
[INFO] [stderr] 771 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sinks/mod.rs:131:13
[INFO] [stderr]     |
[INFO] [stderr] 131 |             _ => unimplemented!(),
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]   --> src/sinks/mod.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |         context: SinkingContext,
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.90s
[INFO] running `"docker" "inspect" "9e34cbbaf0c863a8cf00518fb25cd6319e95309a7006a4d48614b3b30ff7e8c2"`
[INFO] running `"docker" "rm" "-f" "9e34cbbaf0c863a8cf00518fb25cd6319e95309a7006a4d48614b3b30ff7e8c2"`
[INFO] [stdout] 9e34cbbaf0c863a8cf00518fb25cd6319e95309a7006a4d48614b3b30ff7e8c2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/comnik/declarative-dataflow:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] d6d2aa7482289e3c349581984cc171db1477da7e3c16376ad1118bc825f8a72c
[INFO] running `"docker" "start" "-a" "d6d2aa7482289e3c349581984cc171db1477da7e3c16376ad1118bc825f8a72c"`
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling declarative-dataflow v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:20:43
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>>;
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:24:40
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var>;
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn can_extend(&self, prefix: &AsBinding, target: Var) -> bool {
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:42:41
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]    |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/binding/mod.rs:46:44
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:113:40
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:122:43
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:156:40
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:168:43
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:220:40
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:224:43
[INFO] [stderr]     |
[INFO] [stderr] 224 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:257:40
[INFO] [stderr]     |
[INFO] [stderr] 257 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:265:43
[INFO] [stderr]     |
[INFO] [stderr] 265 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:323:40
[INFO] [stderr]     |
[INFO] [stderr] 323 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/binding/mod.rs:335:43
[INFO] [stderr]     |
[INFO] [stderr] 335 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:523:41
[INFO] [stderr]     |
[INFO] [stderr] 523 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:527:44
[INFO] [stderr]     |
[INFO] [stderr] 527 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:764:40
[INFO] [stderr]     |
[INFO] [stderr] 764 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:771:43
[INFO] [stderr]     |
[INFO] [stderr] 771 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sinks/mod.rs:131:13
[INFO] [stderr]     |
[INFO] [stderr] 131 |             _ => unimplemented!(),
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]   --> src/sinks/mod.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |         context: SinkingContext,
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name pull_test tests/pull_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=cff3b82b9bb0b152 -C extra-filename=-cff3b82b9bb0b152 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name transform_test tests/transform_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=4153ab2bc73f3970 -C extra-filename=-4153ab2bc73f3970 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name or_test tests/or_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=33cc56f3ed6e169c -C extra-filename=-33cc56f3ed6e169c --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name registration_test tests/registration_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=a8b197e6cf20c433 -C extra-filename=-a8b197e6cf20c433 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name cardinality_one tests/cardinality_one.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=5fb36fba92d3841b -C extra-filename=-5fb36fba92d3841b --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name query_test tests/query_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=6c9dad79f812751a -C extra-filename=-6c9dad79f812751a --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name hector_test tests/hector_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=f4ea3528c059ced3 -C extra-filename=-f4ea3528c059ced3 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `declarative-dataflow`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name aggregation_test tests/aggregation_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=5846a7f9ad081ac8 -C extra-filename=-5846a7f9ad081ac8 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern declarative_dataflow=/opt/crater/target/debug/deps/libdeclarative_dataflow-b0a2539345697acc.rlib --extern differential_dataflow=/opt/crater/target/debug/deps/libdifferential_dataflow-083baff9aa4dbd20.rlib --extern env_logger=/opt/crater/target/debug/deps/libenv_logger-5b045572b4e2c3b2.rlib --extern log=/opt/crater/target/debug/deps/liblog-4d4ce27474bb9998.rlib --extern num_rational=/opt/crater/target/debug/deps/libnum_rational-09e4256b54d28edc.rlib --extern serde=/opt/crater/target/debug/deps/libserde-c55174c1f02a9342.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern timely=/opt/crater/target/debug/deps/libtimely-d31b470551b440df.rlib --extern timely_sort=/opt/crater/target/debug/deps/libtimely_sort-1e1ad6bab246c725.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "d6d2aa7482289e3c349581984cc171db1477da7e3c16376ad1118bc825f8a72c"`
[INFO] running `"docker" "rm" "-f" "d6d2aa7482289e3c349581984cc171db1477da7e3c16376ad1118bc825f8a72c"`
[INFO] [stdout] d6d2aa7482289e3c349581984cc171db1477da7e3c16376ad1118bc825f8a72c