[INFO] updating cached repository https://github.com/hyst329/tspr
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 269517abb0871f992319fd20968e954a01e5d48f
[INFO] checking hyst329/tspr against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyst329%2Ftspr" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hyst329/tspr on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hyst329/tspr
[INFO] finished tweaking git repo https://github.com/hyst329/tspr
[INFO] tweaked toml for git repo https://github.com/hyst329/tspr written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hyst329/tspr already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd6e4215635a1b574636c2c7afdb8617c50c68fad1af5b4af1fb1b1674a054e2
[INFO] running `"docker" "start" "-a" "cd6e4215635a1b574636c2c7afdb8617c50c68fad1af5b4af1fb1b1674a054e2"`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking smallvec v0.6.9
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[INFO] [stderr]     Checking md5 v0.3.8
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[INFO] [stderr]    Compiling pest v2.1.0
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[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memchr v1.0.2
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[INFO] [stderr]    Compiling syn v0.15.28
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking postgres-protocol v0.3.2
[INFO] [stderr]     Checking postgres-shared v0.4.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking postgres v0.15.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tspr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core/pattern.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 |     f: Box<Fn(&Event) -> Result<T>>,
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Event) -> Result<T>`
[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/core/pattern.rs:93:20
[INFO] [stderr]    |
[INFO] [stderr] 93 |     extractor: Box<IdxExtractor<Event>>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IdxExtractor<Event>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:134:20
[INFO] [stderr]     |
[INFO] [stderr] 134 |     extractor: Box<IdxExtractor<Event>>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IdxExtractor<Event>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:144:20
[INFO] [stderr]     |
[INFO] [stderr] 144 |     extractor: Box<IdxExtractor<Event>>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IdxExtractor<Event>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:145:26
[INFO] [stderr]     |
[INFO] [stderr] 145 |     field_extractor: Box<FieldExtractor<Event, T>>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FieldExtractor<Event, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:161:15
[INFO] [stderr]     |
[INFO] [stderr] 161 |     left: Box<Pattern<Event, State1, T1>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pattern<Event, State1, T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:162:16
[INFO] [stderr]     |
[INFO] [stderr] 162 |     right: Box<Pattern<Event, State2, T2>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pattern<Event, State2, T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:163:15
[INFO] [stderr]     |
[INFO] [stderr] 163 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T1>, &Result<T2>) -> Result<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:186:15
[INFO] [stderr]     |
[INFO] [stderr] 186 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T1>, &Result<T2>) -> Result<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:217:15
[INFO] [stderr]     |
[INFO] [stderr] 217 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T1>, &Result<T2>) -> Result<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core/pattern.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 |     f: Box<Fn(&Event) -> Result<T>>,
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Event) -> Result<T>`
[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/core/pattern.rs:93:20
[INFO] [stderr]    |
[INFO] [stderr] 93 |     extractor: Box<IdxExtractor<Event>>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IdxExtractor<Event>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:134:20
[INFO] [stderr]     |
[INFO] [stderr] 134 |     extractor: Box<IdxExtractor<Event>>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IdxExtractor<Event>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:144:20
[INFO] [stderr]     |
[INFO] [stderr] 144 |     extractor: Box<IdxExtractor<Event>>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn IdxExtractor<Event>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:145:26
[INFO] [stderr]     |
[INFO] [stderr] 145 |     field_extractor: Box<FieldExtractor<Event, T>>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FieldExtractor<Event, T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:161:15
[INFO] [stderr]     |
[INFO] [stderr] 161 |     left: Box<Pattern<Event, State1, T1>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pattern<Event, State1, T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:162:16
[INFO] [stderr]     |
[INFO] [stderr] 162 |     right: Box<Pattern<Event, State2, T2>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Pattern<Event, State2, T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:163:15
[INFO] [stderr]     |
[INFO] [stderr] 163 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T1>, &Result<T2>) -> Result<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:186:15
[INFO] [stderr]     |
[INFO] [stderr] 186 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T1>, &Result<T2>) -> Result<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/pattern.rs:217:15
[INFO] [stderr]     |
[INFO] [stderr] 217 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Result<T1>, &Result<T2>) -> Result<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old_state`
[INFO] [stderr]    --> src/core/pattern.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn  apply(&self, old_state: CouplePatternState<State1, State2, T1, T2, T3>, events: Vec<Event>) -> CouplePatternState<State1, State2, T1, T2, T3> {
[INFO] [stderr]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_state`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `events`
[INFO] [stderr]    --> src/core/pattern.rs:239:81
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn  apply(&self, old_state: CouplePatternState<State1, State2, T1, T2, T3>, events: Vec<Event>) -> CouplePatternState<State1, State2, T1, T2, T3> {
[INFO] [stderr]     |                                                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DSLParser`
[INFO] [stderr]  --> src/dsl/mod.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct DSLParser;
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AggregateFunction`
[INFO] [stderr]  --> src/dsl/ast.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum AggregateFunction {
[INFO] [stderr]   |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AST`
[INFO] [stderr]   --> src/dsl/ast.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 | enum AST {
[INFO] [stderr]    |      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TimeInterval`
[INFO] [stderr]  --> src/core/time.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct TimeInterval(u64, u64);
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RangeInterval`
[INFO] [stderr]  --> src/core/time.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct RangeInterval(u64, u64);
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old_state`
[INFO] [stderr]    --> src/core/pattern.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn  apply(&self, old_state: CouplePatternState<State1, State2, T1, T2, T3>, events: Vec<Event>) -> CouplePatternState<State1, State2, T1, T2, T3> {
[INFO] [stderr]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_state`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Interval`
[INFO] [stderr]  --> src/core/time.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum Interval {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Window`
[INFO] [stderr]  --> src/core/time.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Window(u64);
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `events`
[INFO] [stderr]    --> src/core/pattern.rs:239:81
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn  apply(&self, old_state: CouplePatternState<State1, State2, T1, T2, T3>, events: Vec<Event>) -> CouplePatternState<State1, State2, T1, T2, T3> {
[INFO] [stderr]     |                                                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_events`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/core/pattern.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn new(index: Idx, start: Idx, end: Idx, value: Result<T>) -> IdxValue<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Success`
[INFO] [stderr]   --> src/core/pattern.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     Success(T),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Failure`
[INFO] [stderr]   --> src/core/pattern.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     Failure,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `constant`
[INFO] [stderr]    --> src/core/pattern.rs:132:4
[INFO] [stderr]     |
[INFO] [stderr] 132 | fn constant<Event, T: 'static + Clone>(
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `field`
[INFO] [stderr]    --> src/core/pattern.rs:142:4
[INFO] [stderr]     |
[INFO] [stderr] 142 | fn field<Event: 'static, T: 'static + Clone>(
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `func`
[INFO] [stderr]    --> src/core/pattern.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `couple_inner`
[INFO] [stderr]    --> src/core/pattern.rs:182:4
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn couple_inner<T1: Clone, T2: Clone, T3: Clone>(
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `couple_process_queues`
[INFO] [stderr]    --> src/core/pattern.rs:213:4
[INFO] [stderr]     |
[INFO] [stderr] 213 | fn couple_process_queues<T1: Clone, T2: Clone, T3: Clone>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AggregateFunction`
[INFO] [stderr]  --> src/dsl/ast.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum AggregateFunction {
[INFO] [stderr]   |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AST`
[INFO] [stderr]   --> src/dsl/ast.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 | enum AST {
[INFO] [stderr]    |      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TimeInterval`
[INFO] [stderr]  --> src/core/time.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct TimeInterval(u64, u64);
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RangeInterval`
[INFO] [stderr]  --> src/core/time.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct RangeInterval(u64, u64);
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Interval`
[INFO] [stderr]  --> src/core/time.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum Interval {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Window`
[INFO] [stderr]  --> src/core/time.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Window(u64);
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/core/pattern.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn new(index: Idx, start: Idx, end: Idx, value: Result<T>) -> IdxValue<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Success`
[INFO] [stderr]   --> src/core/pattern.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     Success(T),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Failure`
[INFO] [stderr]   --> src/core/pattern.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     Failure,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `constant`
[INFO] [stderr]    --> src/core/pattern.rs:132:4
[INFO] [stderr]     |
[INFO] [stderr] 132 | fn constant<Event, T: 'static + Clone>(
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `field`
[INFO] [stderr]    --> src/core/pattern.rs:142:4
[INFO] [stderr]     |
[INFO] [stderr] 142 | fn field<Event: 'static, T: 'static + Clone>(
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `func`
[INFO] [stderr]    --> src/core/pattern.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     func: Box<Fn(&Result<T1>, &Result<T2>) -> Result<T3>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `couple_inner`
[INFO] [stderr]    --> src/core/pattern.rs:182:4
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn couple_inner<T1: Clone, T2: Clone, T3: Clone>(
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `couple_process_queues`
[INFO] [stderr]    --> src/core/pattern.rs:213:4
[INFO] [stderr]     |
[INFO] [stderr] 213 | fn couple_process_queues<T1: Clone, T2: Clone, T3: Clone>(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.36s
[INFO] running `"docker" "inspect" "cd6e4215635a1b574636c2c7afdb8617c50c68fad1af5b4af1fb1b1674a054e2"`
[INFO] running `"docker" "rm" "-f" "cd6e4215635a1b574636c2c7afdb8617c50c68fad1af5b4af1fb1b1674a054e2"`
[INFO] [stdout] cd6e4215635a1b574636c2c7afdb8617c50c68fad1af5b4af1fb1b1674a054e2