[INFO] crate declarative-dataflow 0.2.0 is already in cache
[INFO] testing declarative-dataflow-0.2.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate declarative-dataflow 0.2.0 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate declarative-dataflow 0.2.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-3/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] e97e2751b71644303db6ab521010299fc3f40b541f8c5c74d7ec8d2461baa286
[INFO] running `"docker" "start" "-a" "e97e2751b71644303db6ab521010299fc3f40b541f8c5c74d7ec8d2461baa286"`
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling timely_communication v0.10.0
[INFO] [stderr]    Compiling timely v0.10.0
[INFO] [stderr]    Compiling differential-dataflow v0.10.0
[INFO] [stderr]    Compiling declarative-dataflow v0.2.0 (/opt/rustwide/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: unnecessary trailing semicolon
[INFO] [stderr]    --> src/domain/mod.rs:367:46
[INFO] [stderr]     |
[INFO] [stderr] 367 |                         .collect::<Vec<T>>();;
[INFO] [stderr]     |                                              ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/plan/hector.rs:745:1
[INFO] [stderr]     |
[INFO] [stderr] 745 | ;
[INFO] [stderr]     | ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/plan/hector.rs:834:1
[INFO] [stderr]     |
[INFO] [stderr] 834 | ;
[INFO] [stderr]     | ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:524:41
[INFO] [stderr]     |
[INFO] [stderr] 524 |     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:528:44
[INFO] [stderr]     |
[INFO] [stderr] 528 |     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:765:40
[INFO] [stderr]     |
[INFO] [stderr] 765 |     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:772:43
[INFO] [stderr]     |
[INFO] [stderr] 772 |     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 21.39s
[INFO] running `"docker" "inspect" "e97e2751b71644303db6ab521010299fc3f40b541f8c5c74d7ec8d2461baa286"`
[INFO] running `"docker" "rm" "-f" "e97e2751b71644303db6ab521010299fc3f40b541f8c5c74d7ec8d2461baa286"`
[INFO] [stdout] e97e2751b71644303db6ab521010299fc3f40b541f8c5c74d7ec8d2461baa286
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8f52e0e4569ffce08ce645d5693dff16c7cae97150835baebab75ab471e2a87f
[INFO] running `"docker" "start" "-a" "8f52e0e4569ffce08ce645d5693dff16c7cae97150835baebab75ab471e2a87f"`
[INFO] [stderr]    Compiling declarative-dataflow v0.2.0 (/opt/rustwide/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: unnecessary trailing semicolon
[INFO] [stderr]    --> src/domain/mod.rs:367:46
[INFO] [stderr]     |
[INFO] [stderr] 367 |                         .collect::<Vec<T>>();;
[INFO] [stderr]     |                                              ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/plan/hector.rs:745:1
[INFO] [stderr]     |
[INFO] [stderr] 745 | ;
[INFO] [stderr]     | ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/plan/hector.rs:834:1
[INFO] [stderr]     |
[INFO] [stderr] 834 | ;
[INFO] [stderr]     | ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:524:41
[INFO] [stderr]     |
[INFO] [stderr] 524 |     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:528:44
[INFO] [stderr]     |
[INFO] [stderr] 528 |     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:765:40
[INFO] [stderr]     |
[INFO] [stderr] 765 |     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:772:43
[INFO] [stderr]     |
[INFO] [stderr] 772 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[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 domain_test tests/domain_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=eccfc8e92e28d095 -C extra-filename=-eccfc8e92e28d095 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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=32db8adb9c22e303 -C extra-filename=-32db8adb9c22e303 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 query_test tests/query_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=279e8dd1746d9703 -C extra-filename=-279e8dd1746d9703 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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=74742a7ce46795ee -C extra-filename=-74742a7ce46795ee --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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 pull_test tests/pull_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=f94e89226dfe2617 -C extra-filename=-f94e89226dfe2617 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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=fbb582f0919d4ceb -C extra-filename=-fbb582f0919d4ceb --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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=6da05dd7beab5653 -C extra-filename=-6da05dd7beab5653 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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=145cd030cbd37382 -C extra-filename=-145cd030cbd37382 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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=21964749916fdba7 -C extra-filename=-21964749916fdba7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.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 not_test tests/not_test.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=060633aba8c9bc04 -C extra-filename=-060633aba8c9bc04 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-caac7d564052e90d.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-3a9cc4aa8d07892f.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d2249e8a58443422.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5513cb556299afcf.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-ecd1379523b3bda6.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-99bda1236d933191.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bd54226c59a291eb.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-66235641e474127a.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-e2554c2fe8b1ca18.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "8f52e0e4569ffce08ce645d5693dff16c7cae97150835baebab75ab471e2a87f"`
[INFO] running `"docker" "rm" "-f" "8f52e0e4569ffce08ce645d5693dff16c7cae97150835baebab75ab471e2a87f"`
[INFO] [stdout] 8f52e0e4569ffce08ce645d5693dff16c7cae97150835baebab75ab471e2a87f