[INFO] fetching crate timely 0.12.0... [INFO] checking timely-0.12.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate timely 0.12.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate timely 0.12.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate timely 0.12.0 [INFO] finished tweaking crates.io crate timely 0.12.0 [INFO] tweaked toml for crates.io crate timely 0.12.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate timely 0.12.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded timely_logging v0.12.0 [INFO] [stderr] Downloaded serde_derive v1.0.124 [INFO] [stderr] Downloaded timely_bytes v0.12.0 [INFO] [stderr] Downloaded timely_communication v0.12.0 [INFO] [stderr] Downloaded abomonation_derive v0.5.0 [INFO] [stderr] Downloaded futures-core v0.3.13 [INFO] [stderr] Downloaded futures-macro v0.3.13 [INFO] [stderr] Downloaded futures-task v0.3.13 [INFO] [stderr] Downloaded pin-project-lite v0.2.6 [INFO] [stderr] Downloaded futures-util v0.3.13 [INFO] [stderr] Downloaded syn v1.0.63 [INFO] [stderr] Downloaded libc v0.2.88 [INFO] [stderr] Downloaded abomonation v0.7.3 [INFO] [stderr] Downloaded bincode v1.3.2 [INFO] [stderr] Downloaded crossbeam-channel v0.5.0 [INFO] [stderr] Downloaded serde v1.0.124 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e971693ead119387079330ff3a882d291463be8db5d65c092fed31686edab0ff [INFO] running `Command { std: "docker" "start" "-a" "e971693ead119387079330ff3a882d291463be8db5d65c092fed31686edab0ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e971693ead119387079330ff3a882d291463be8db5d65c092fed31686edab0ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e971693ead119387079330ff3a882d291463be8db5d65c092fed31686edab0ff", kill_on_drop: false }` [INFO] [stdout] e971693ead119387079330ff3a882d291463be8db5d65c092fed31686edab0ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 40a35e2789c19541237beb0b9e2b155fae081d3d89db8e02dd1d518ab5103fa1 [INFO] running `Command { std: "docker" "start" "-a" "40a35e2789c19541237beb0b9e2b155fae081d3d89db8e02dd1d518ab5103fa1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.63 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling serde_derive v1.0.124 [INFO] [stderr] Compiling serde v1.0.124 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Checking futures-task v0.3.13 [INFO] [stderr] Checking timely_bytes v0.12.0 [INFO] [stderr] Checking timely_logging v0.12.0 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking abomonation v0.7.3 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling abomonation_derive v0.5.0 [INFO] [stderr] Compiling futures-macro v0.3.13 [INFO] [stderr] Checking futures-util v0.3.13 [INFO] [stderr] Checking timely_communication v0.12.0 [INFO] [stderr] Checking timely v0.12.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/progress/timestamp.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_rc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_raw.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/progress/timestamp.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_rc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_raw.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:160:29 [INFO] [stdout] | [INFO] [stdout] 160 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:191:29 [INFO] [stdout] | [INFO] [stdout] 191 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:160:29 [INFO] [stdout] | [INFO] [stdout] 160 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:191:29 [INFO] [stdout] | [INFO] [stdout] 191 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/progress/frontier.rs:511:36 [INFO] [stdout] | [INFO] [stdout] 511 | frontier: self.frontier.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/progress/frontier.rs:511:36 [INFO] [stdout] | [INFO] [stdout] 511 | frontier: self.frontier.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `field` is never read [INFO] [stdout] --> examples/rc.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Test { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 11 | field: Rc, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Test` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.51s [INFO] running `Command { std: "docker" "inspect" "40a35e2789c19541237beb0b9e2b155fae081d3d89db8e02dd1d518ab5103fa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40a35e2789c19541237beb0b9e2b155fae081d3d89db8e02dd1d518ab5103fa1", kill_on_drop: false }` [INFO] [stdout] 40a35e2789c19541237beb0b9e2b155fae081d3d89db8e02dd1d518ab5103fa1 [INFO] checking timely-0.12.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate timely 0.12.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate timely 0.12.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate timely 0.12.0 [INFO] finished tweaking crates.io crate timely 0.12.0 [INFO] tweaked toml for crates.io crate timely 0.12.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate timely 0.12.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 903a39ddd79871c422fd3d89eff061a3d5a8ded830b88b9a5397c596ac6dc131 [INFO] running `Command { std: "docker" "start" "-a" "903a39ddd79871c422fd3d89eff061a3d5a8ded830b88b9a5397c596ac6dc131", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "903a39ddd79871c422fd3d89eff061a3d5a8ded830b88b9a5397c596ac6dc131", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "903a39ddd79871c422fd3d89eff061a3d5a8ded830b88b9a5397c596ac6dc131", kill_on_drop: false }` [INFO] [stdout] 903a39ddd79871c422fd3d89eff061a3d5a8ded830b88b9a5397c596ac6dc131 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9e4a0e628700855c3ad2fc5ddff7bae391e533a0b8fad2bfdd0c16776846ff4a [INFO] running `Command { std: "docker" "start" "-a" "9e4a0e628700855c3ad2fc5ddff7bae391e533a0b8fad2bfdd0c16776846ff4a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.63 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling serde_derive v1.0.124 [INFO] [stderr] Compiling serde v1.0.124 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Checking abomonation v0.7.3 [INFO] [stderr] Checking futures-task v0.3.13 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking timely_logging v0.12.0 [INFO] [stderr] Checking timely_bytes v0.12.0 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling abomonation_derive v0.5.0 [INFO] [stderr] Compiling futures-macro v0.3.13 [INFO] [stderr] Checking futures-util v0.3.13 [INFO] [stderr] Checking timely_communication v0.12.0 [INFO] [stderr] Checking timely v0.12.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/progress/timestamp.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_rc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_raw.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/progress/timestamp.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_rc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/dataflow/operators/generic/builder_raw.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:160:29 [INFO] [stdout] | [INFO] [stdout] 160 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:191:29 [INFO] [stdout] | [INFO] [stdout] 191 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:160:29 [INFO] [stdout] | [INFO] [stdout] 160 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/synchronization/sequence.rs:191:29 [INFO] [stdout] | [INFO] [stdout] 191 | let mut activator = activator_borrow.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/progress/frontier.rs:511:36 [INFO] [stdout] | [INFO] [stdout] 511 | frontier: self.frontier.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/progress/frontier.rs:511:36 [INFO] [stdout] | [INFO] [stdout] 511 | frontier: self.frontier.clone(), [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `field` is never read [INFO] [stdout] --> examples/rc.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Test { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 11 | field: Rc, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Test` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.85s [INFO] running `Command { std: "docker" "inspect" "9e4a0e628700855c3ad2fc5ddff7bae391e533a0b8fad2bfdd0c16776846ff4a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e4a0e628700855c3ad2fc5ddff7bae391e533a0b8fad2bfdd0c16776846ff4a", kill_on_drop: false }` [INFO] [stdout] 9e4a0e628700855c3ad2fc5ddff7bae391e533a0b8fad2bfdd0c16776846ff4a