[INFO] fetching crate declarative-dataflow 0.2.0...
[INFO] building declarative-dataflow-0.2.0 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate declarative-dataflow 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate declarative-dataflow 0.2.0 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded abomonation_derive v0.3.0
[INFO] [stderr]   Downloaded abomonation_derive v0.4.0
[INFO] [stderr]   Downloaded timely_sort v0.1.6
[INFO] [stderr]   Downloaded timely_logging v0.10.0
[INFO] [stderr]   Downloaded timely_bytes v0.10.0
[INFO] [stderr]   Downloaded timely v0.10.0
[INFO] [stderr]   Downloaded fixed v0.3.3
[INFO] [stderr]   Downloaded timely_communication v0.10.0
[INFO] [stderr]   Downloaded differential-dataflow v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a86af9a4805c55e244f725e9d1aa470b4e7096299de3e9d3f9ace8400e625c3
[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" "8a86af9a4805c55e244f725e9d1aa470b4e7096299de3e9d3f9ace8400e625c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a86af9a4805c55e244f725e9d1aa470b4e7096299de3e9d3f9ace8400e625c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a86af9a4805c55e244f725e9d1aa470b4e7096299de3e9d3f9ace8400e625c3", kill_on_drop: false }`
[INFO] [stdout] 8a86af9a4805c55e244f725e9d1aa470b4e7096299de3e9d3f9ace8400e625c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69af97ab09fd5fb80aa26d9ead72d54d7b68a51aa60262ff89b6e2cfff6b998f
[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" "69af97ab09fd5fb80aa26d9ead72d54d7b68a51aa60262ff89b6e2cfff6b998f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling timely_logging v0.10.0
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling timely_bytes v0.10.0
[INFO] [stderr]    Compiling timely_sort v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling abomonation_derive v0.4.0
[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] [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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: panic message is not a string literal
[INFO] [stdout]    --> src/plan/hector.rs:717:76
[INFO] [stdout]     |
[INFO] [stdout] 717 | ...                   Err(msg) => panic!(msg),
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 717 |                                                         Err(msg) => panic!("{}", msg),
[INFO] [stdout]     |                                                                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 717 |                                                         Err(msg) => std::panic::panic_any(msg),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.76s
[INFO] running `Command { std: "docker" "inspect" "69af97ab09fd5fb80aa26d9ead72d54d7b68a51aa60262ff89b6e2cfff6b998f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69af97ab09fd5fb80aa26d9ead72d54d7b68a51aa60262ff89b6e2cfff6b998f", kill_on_drop: false }`
[INFO] [stdout] 69af97ab09fd5fb80aa26d9ead72d54d7b68a51aa60262ff89b6e2cfff6b998f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10154801abb9f936f89bfc9f91574dbfbeb6c4f719e5858f730957ee41ed687a
[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" "10154801abb9f936f89bfc9f91574dbfbeb6c4f719e5858f730957ee41ed687a", kill_on_drop: false }`
[INFO] [stderr]    Compiling humantime v1.3.0
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: panic message is not a string literal
[INFO] [stdout]    --> src/plan/hector.rs:717:76
[INFO] [stdout]     |
[INFO] [stdout] 717 | ...                   Err(msg) => panic!(msg),
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 717 |                                                         Err(msg) => panic!("{}", msg),
[INFO] [stdout]     |                                                                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 717 |                                                         Err(msg) => std::panic::panic_any(msg),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling 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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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] [stderr] error: could not compile `declarative-dataflow`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name domain_test --edition=2018 tests/domain_test.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=954ad02d7a19ebe0 -C extra-filename=-954ad02d7a19ebe0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern declarative_dataflow=/opt/rustwide/target/debug/deps/libdeclarative_dataflow-cc4aa54fd051689b.rlib --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-1e64d71f58a3c3e3.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-4b472d6c5ade0d1b.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-bc17724bd34a7bc3.rlib --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-278018d41d85caee.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-cf3c707e87a3eee3.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-9a0b5b6d517518ab.so --extern timely=/opt/rustwide/target/debug/deps/libtimely-eda2b3a6b30d24cd.rlib --extern timely_sort=/opt/rustwide/target/debug/deps/libtimely_sort-6464bf4d520e5d35.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/plan/hector.rs:717:76
[INFO] [stdout]     |
[INFO] [stdout] 717 | ...                   Err(msg) => panic!(msg),
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 717 |                                                         Err(msg) => panic!("{}", msg),
[INFO] [stdout]     |                                                                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 717 |                                                         Err(msg) => std::panic::panic_any(msg),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "10154801abb9f936f89bfc9f91574dbfbeb6c4f719e5858f730957ee41ed687a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10154801abb9f936f89bfc9f91574dbfbeb6c4f719e5858f730957ee41ed687a", kill_on_drop: false }`
[INFO] [stdout] 10154801abb9f936f89bfc9f91574dbfbeb6c4f719e5858f730957ee41ed687a
