[INFO] fetching crate declarative-dataflow 0.2.0...
[INFO] checking declarative-dataflow-0.2.0 against beta for pr-78714
[INFO] extracting crate declarative-dataflow 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate declarative-dataflow 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b224ce1c5ea2287d0fd601df70673887139fcf7069df0c157cadbf76c22ad38
[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" "9b224ce1c5ea2287d0fd601df70673887139fcf7069df0c157cadbf76c22ad38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b224ce1c5ea2287d0fd601df70673887139fcf7069df0c157cadbf76c22ad38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b224ce1c5ea2287d0fd601df70673887139fcf7069df0c157cadbf76c22ad38", kill_on_drop: false }`
[INFO] [stdout] 9b224ce1c5ea2287d0fd601df70673887139fcf7069df0c157cadbf76c22ad38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cd68783e34e87b4004bc2a152ad898e5d429f71cea25858f4426d7ee43d8d83
[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" "8cd68783e34e87b4004bc2a152ad898e5d429f71cea25858f4426d7ee43d8d83", kill_on_drop: false }`
[INFO] [stderr]     Checking timely_bytes v0.10.0
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]     Checking timely_logging v0.10.0
[INFO] [stderr]     Checking timely_sort v0.1.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling abomonation_derive v0.4.0
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]     Checking timely_communication v0.10.0
[INFO] [stderr]     Checking timely v0.10.0
[INFO] [stderr]     Checking differential-dataflow v0.10.0
[INFO] [stderr]     Checking declarative-dataflow v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:20:43
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>>;
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:24:40
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var>;
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn can_extend(&self, prefix: &AsBinding, target: Var) -> bool {
[INFO] [stdout]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:42:41
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:46:44
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stdout]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:113:40
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:122:43
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:156:40
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:168:43
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:220:40
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:224:43
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:257:40
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:265:43
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:323:40
[INFO] [stdout]     |
[INFO] [stdout] 323 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:335:43
[INFO] [stdout]     |
[INFO] [stdout] 335 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/domain/mod.rs:367:46
[INFO] [stdout]     |
[INFO] [stdout] 367 |                         .collect::<Vec<T>>();;
[INFO] [stdout]     |                                              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/plan/hector.rs:745:1
[INFO] [stdout]     |
[INFO] [stdout] 745 | ;
[INFO] [stdout]     | ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/plan/hector.rs:834:1
[INFO] [stdout]     |
[INFO] [stdout] 834 | ;
[INFO] [stdout]     | ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:524:41
[INFO] [stdout]     |
[INFO] [stdout] 524 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:528:44
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:765:40
[INFO] [stdout]     |
[INFO] [stdout] 765 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:772:43
[INFO] [stdout]     |
[INFO] [stdout] 772 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:20:43
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>>;
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:24:40
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var>;
[INFO] [stdout]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn can_extend(&self, prefix: &AsBinding, target: Var) -> bool {
[INFO] [stdout]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:42:41
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/binding/mod.rs:46:44
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stdout]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:113:40
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:122:43
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:156:40
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:168:43
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:220:40
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:224:43
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:257:40
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:265:43
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:323:40
[INFO] [stdout]     |
[INFO] [stdout] 323 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/binding/mod.rs:335:43
[INFO] [stdout]     |
[INFO] [stdout] 335 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/domain/mod.rs:367:46
[INFO] [stdout]     |
[INFO] [stdout] 367 |                         .collect::<Vec<T>>();;
[INFO] [stdout]     |                                              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/plan/hector.rs:745:1
[INFO] [stdout]     |
[INFO] [stdout] 745 | ;
[INFO] [stdout]     | ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/plan/hector.rs:834:1
[INFO] [stdout]     |
[INFO] [stdout] 834 | ;
[INFO] [stdout]     | ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:524:41
[INFO] [stdout]     |
[INFO] [stdout] 524 |     fn ready_to_extend(&self, _prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                         ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:528:44
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn required_to_extend(&self, _prefix: &AsBinding, _target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:765:40
[INFO] [stdout]     |
[INFO] [stdout] 765 |     fn ready_to_extend(&self, prefix: &AsBinding) -> Option<Var> {
[INFO] [stdout]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:772:43
[INFO] [stdout]     |
[INFO] [stdout] 772 |     fn required_to_extend(&self, prefix: &AsBinding, target: Var) -> Option<Option<Var>> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn AsBinding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sinks/mod.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |             _ => unimplemented!(),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sinks/mod.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |             _ => unimplemented!(),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/sinks/mod.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         context: SinkingContext,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/sinks/mod.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         context: SinkingContext,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.74s
[INFO] running `Command { std: "docker" "inspect" "8cd68783e34e87b4004bc2a152ad898e5d429f71cea25858f4426d7ee43d8d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd68783e34e87b4004bc2a152ad898e5d429f71cea25858f4426d7ee43d8d83", kill_on_drop: false }`
[INFO] [stdout] 8cd68783e34e87b4004bc2a152ad898e5d429f71cea25858f4426d7ee43d8d83