[INFO] fetching crate daab 0.4.0... [INFO] checking daab-0.4.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate daab 0.4.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate daab 0.4.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate daab 0.4.0 [INFO] finished tweaking crates.io crate daab 0.4.0 [INFO] tweaked toml for crates.io crate daab 0.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate daab 0.4.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ctor v0.1.16 [INFO] [stderr] Downloaded tynm v0.1.4 [INFO] [stderr] Downloaded version_check v0.9.2 [INFO] [stderr] Downloaded never v0.1.0 [INFO] [stderr] Downloaded pretty_assertions v0.6.1 [INFO] [stderr] Downloaded syn v1.0.48 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0ef5f94f319228979fdf472b20352fd181847ea492f257c5779e7cc0461f4046 [INFO] running `Command { std: "docker" "start" "-a" "0ef5f94f319228979fdf472b20352fd181847ea492f257c5779e7cc0461f4046", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ef5f94f319228979fdf472b20352fd181847ea492f257c5779e7cc0461f4046", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ef5f94f319228979fdf472b20352fd181847ea492f257c5779e7cc0461f4046", kill_on_drop: false }` [INFO] [stdout] 0ef5f94f319228979fdf472b20352fd181847ea492f257c5779e7cc0461f4046 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 083b5c977c3e08985ed80998166d78a5644cdee26723edb7f5aa78d8c0e5f028 [INFO] running `Command { std: "docker" "start" "-a" "083b5c977c3e08985ed80998166d78a5644cdee26723edb7f5aa78d8c0e5f028", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking never v0.1.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking daab v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:345:9 [INFO] [stdout] | [INFO] [stdout] 345 | Err(n) => match n {}, [INFO] [stdout] | ^^^^^^ matches no values because `Never` is uninhabited [INFO] [stdout] | [INFO] [stdout] = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `builder_ptr` is never used [INFO] [stdout] --> src/blueprint.rs:167:16 [INFO] [stdout] | [INFO] [stdout] 150 | impl> Blueprint { [INFO] [stdout] | ---------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 167 | pub(crate) fn builder_ptr(&self) -> *const () { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `BuilderDyn` is never used [INFO] [stdout] --> src/blueprint.rs:562:6 [INFO] [stdout] | [INFO] [stdout] 562 | type BuilderDyn = dyn Builder; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `builder_ptr` is never used [INFO] [stdout] --> src/blueprint.rs:674:16 [INFO] [stdout] | [INFO] [stdout] 654 | / impl BlueprintDyn [INFO] [stdout] 655 | | where [INFO] [stdout] 656 | | BCan: Can>, { [INFO] [stdout] | |____________________________________________________________________________________- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 674 | pub(crate) fn builder_ptr(&self) -> *const () { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `lookup_mut`, `get_mut`, and `invalidate_dependents` are never used [INFO] [stdout] --> src/cache/internal.rs:367:16 [INFO] [stdout] | [INFO] [stdout] 219 | / impl RawCache [INFO] [stdout] 220 | | where [INFO] [stdout] 221 | | ArtCan: Debug, [INFO] [stdout] 222 | | BCan: CanStrong { [INFO] [stdout] | |___________________________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 367 | pub(crate) fn lookup_mut( [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 555 | pub(crate) fn get_mut( [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 850 | fn invalidate_dependents(&mut self, builder: &BuilderId) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for a type alias [INFO] [stdout] --> src/rc.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | pub type ConstBuilder = crate::utils::ConstBuilder, T>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | #![warn(missing_docs)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for a type alias [INFO] [stdout] --> src/rc.rs:58:1 [INFO] [stdout] | [INFO] [stdout] 58 | pub type ConfigurableBuilder = crate::utils::ConfigurableBuilder; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for a type alias [INFO] [stdout] --> src/arc.rs:57:1 [INFO] [stdout] | [INFO] [stdout] 57 | pub type ConstBuilder = crate::utils::ConstBuilder, T>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for a type alias [INFO] [stdout] --> src/arc.rs:58:1 [INFO] [stdout] | [INFO] [stdout] 58 | pub type ConfigurableBuilder = crate::utils::ConfigurableBuilder; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for a type alias [INFO] [stdout] --> src/boxed.rs:59:1 [INFO] [stdout] | [INFO] [stdout] 59 | pub type ConstBuilder = crate::utils::ConstBuilder, T>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for a type alias [INFO] [stdout] --> src/boxed.rs:60:1 [INFO] [stdout] | [INFO] [stdout] 60 | pub type ConfigurableBuilder = crate::utils::ConfigurableBuilder; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for an associated type [INFO] [stdout] --> src/blueprint.rs:80:2 [INFO] [stdout] | [INFO] [stdout] 80 | type Builder: ?Sized + 'static + Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for an associated type [INFO] [stdout] --> src/blueprint.rs:81:2 [INFO] [stdout] | [INFO] [stdout] 81 | type BCan: Can; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stdout] warning: fields `foo_artifact` and `baz_artifact` are never read [INFO] [stdout] --> examples/boxed_result.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 18 | struct BarArtifact { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 19 | foo_artifact: Rc, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 20 | baz_artifact: Rc [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BarArtifact` has a derived impl for the trait `Debug`, but this is 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] [stdout] warning: fields `foo_artifact` and `baz_artifact` are never read [INFO] [stdout] --> examples/boxed_result_cloned.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 18 | struct BarArtifact { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 19 | foo_artifact: Rc, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 20 | baz_artifact: Rc [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BarArtifact` has a derived impl for the trait `Debug`, but this is 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] [stdout] warning: unused variable: `artifact_node` [INFO] [stdout] --> src/test_impl_dyn.rs:240:6 [INFO] [stdout] | [INFO] [stdout] 240 | let artifact_node = cache.get(&noden1); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_artifact_node` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `artifact_root` [INFO] [stdout] --> src/test_impl_dyn.rs:241:6 [INFO] [stdout] | [INFO] [stdout] 241 | let artifact_root = cache.get(&noden3); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_artifact_root` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:345:9 [INFO] [stdout] | [INFO] [stdout] 345 | Err(n) => match n {}, [INFO] [stdout] | ^^^^^^ matches no values because `never::Never` is uninhabited [INFO] [stdout] | [INFO] [stdout] = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/test_impl_dyn.rs:60:16 [INFO] [stdout] | [INFO] [stdout] 59 | impl BuilderSimpleNode { [INFO] [stdout] | ---------------------- associated function in this implementation [INFO] [stdout] 60 | pub(crate) fn new(leaf: Blueprint) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `leaf`, `left`, and `right` are never used [INFO] [stdout] --> src/test_impl_dyn.rs:129:16 [INFO] [stdout] | [INFO] [stdout] 128 | impl ComplexNode { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] 129 | pub(crate) fn leaf(&self) -> Option<&BinType> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 137 | pub(crate) fn left(&self) -> Option<&BinType> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 145 | pub(crate) fn right(&self) -> Option<&BinType> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `builder_ptr` is never used [INFO] [stdout] --> src/blueprint.rs:167:16 [INFO] [stdout] | [INFO] [stdout] 150 | impl> Blueprint { [INFO] [stdout] | ---------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 167 | pub(crate) fn builder_ptr(&self) -> *const () { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `BuilderDyn` is never used [INFO] [stdout] --> src/blueprint.rs:562:6 [INFO] [stdout] | [INFO] [stdout] 562 | type BuilderDyn = dyn Builder; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `builder_ptr` is never used [INFO] [stdout] --> src/blueprint.rs:674:16 [INFO] [stdout] | [INFO] [stdout] 654 | / impl BlueprintDyn [INFO] [stdout] 655 | | where [INFO] [stdout] 656 | | BCan: Can>, { [INFO] [stdout] | |____________________________________________________________________________________- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 674 | pub(crate) fn builder_ptr(&self) -> *const () { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `as_ptr_mut` is never used [INFO] [stdout] --> src/test.rs:359:4 [INFO] [stdout] | [INFO] [stdout] 359 | fn as_ptr_mut(res: Result<&mut T,E>) -> Result<*mut T,E> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.16s [INFO] running `Command { std: "docker" "inspect" "083b5c977c3e08985ed80998166d78a5644cdee26723edb7f5aa78d8c0e5f028", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "083b5c977c3e08985ed80998166d78a5644cdee26723edb7f5aa78d8c0e5f028", kill_on_drop: false }` [INFO] [stdout] 083b5c977c3e08985ed80998166d78a5644cdee26723edb7f5aa78d8c0e5f028