[INFO] cloning repository https://github.com/rowanclarke/rs-collapse [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rowanclarke/rs-collapse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowanclarke%2Frs-collapse", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowanclarke%2Frs-collapse'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4594364a041d271ab77afa2e20e8d1179c8e6c20 [INFO] checking rowanclarke/rs-collapse against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowanclarke%2Frs-collapse" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rowanclarke/rs-collapse on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rowanclarke/rs-collapse [INFO] finished tweaking git repo https://github.com/rowanclarke/rs-collapse [INFO] tweaked toml for git repo https://github.com/rowanclarke/rs-collapse written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rowanclarke/rs-collapse 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3e049b0b3bbe8da66e24d884bd001c8d85bd28e58f93bec38c8c0bbb0fac14e1 [INFO] running `Command { std: "docker" "start" "-a" "3e049b0b3bbe8da66e24d884bd001c8d85bd28e58f93bec38c8c0bbb0fac14e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e049b0b3bbe8da66e24d884bd001c8d85bd28e58f93bec38c8c0bbb0fac14e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e049b0b3bbe8da66e24d884bd001c8d85bd28e58f93bec38c8c0bbb0fac14e1", kill_on_drop: false }` [INFO] [stdout] 3e049b0b3bbe8da66e24d884bd001c8d85bd28e58f93bec38c8c0bbb0fac14e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2c1897e31923677a0cdd198b8b8eb2337bc9448e5310ba022f608a8b9b33f4d9 [INFO] running `Command { std: "docker" "start" "-a" "2c1897e31923677a0cdd198b8b8eb2337bc9448e5310ba022f608a8b9b33f4d9", kill_on_drop: false }` [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking rs-collapse v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | return_position_impl_trait_in_trait, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `impl_trait_projections` has been stable since 1.74.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | impl_trait_projections [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | return_position_impl_trait_in_trait, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `impl_trait_projections` has been stable since 1.74.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | impl_trait_projections [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `FromCollapse` is never used [INFO] [stdout] --> src/collapse.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | pub trait FromCollapse { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Collapse` is never used [INFO] [stdout] --> src/collapse.rs:16:11 [INFO] [stdout] | [INFO] [stdout] 16 | pub trait Collapse { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `NoSolution` is never constructed [INFO] [stdout] --> src/collapse.rs:97:12 [INFO] [stdout] | [INFO] [stdout] 97 | pub struct NoSolution; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NoSolution` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `add` are never used [INFO] [stdout] --> src/iter/filter.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl AccumulateFilter { [INFO] [stdout] | ------------------------------------- associated items in this implementation [INFO] [stdout] 10 | pub fn new(iter: I) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | pub fn add(&mut self, filter: Rc::Item) -> bool>) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature [INFO] [stdout] --> src/tests/puzzle.rs:73:10 [INFO] [stdout] | [INFO] [stdout] 73 | ) -> impl Iterator< [INFO] [stdout] | __________^ [INFO] [stdout] 74 | | Item = ( [INFO] [stdout] 75 | | Box>, [INFO] [stdout] 76 | | Rc bool>, [INFO] [stdout] 77 | | ), [INFO] [stdout] 78 | | > { [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] ::: src/collapse.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 26 | ) -> impl Iterator< [INFO] [stdout] | __________- [INFO] [stdout] 27 | | Item = ( [INFO] [stdout] 28 | | impl Iterator, [INFO] [stdout] 29 | | Rc bool>, [INFO] [stdout] 30 | | ), [INFO] [stdout] 31 | | >; [INFO] [stdout] | |_____- return type from trait method defined here [INFO] [stdout] | [INFO] [stdout] = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate [INFO] [stdout] = note: we are soliciting feedback, see issue #121718 for more information [INFO] [stdout] = note: `#[warn(refining_impl_trait_internal)]` on by default [INFO] [stdout] help: replace the return type so that it matches the trait [INFO] [stdout] | [INFO] [stdout] 73 | ) -> impl Iterator::Coordinate>, Rc<(dyn Fn(::Item) -> bool + 'static)>)> { [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature [INFO] [stdout] --> src/tests/sudoku.rs:78:10 [INFO] [stdout] | [INFO] [stdout] 78 | ) -> impl Iterator< [INFO] [stdout] | __________^ [INFO] [stdout] 79 | | Item = ( [INFO] [stdout] 80 | | Box>, [INFO] [stdout] 81 | | Rc bool>, [INFO] [stdout] 82 | | ), [INFO] [stdout] 83 | | > { [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] ::: src/collapse.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 26 | ) -> impl Iterator< [INFO] [stdout] | __________- [INFO] [stdout] 27 | | Item = ( [INFO] [stdout] 28 | | impl Iterator, [INFO] [stdout] 29 | | Rc bool>, [INFO] [stdout] 30 | | ), [INFO] [stdout] 31 | | >; [INFO] [stdout] | |_____- return type from trait method defined here [INFO] [stdout] | [INFO] [stdout] = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate [INFO] [stdout] = note: we are soliciting feedback, see issue #121718 for more information [INFO] [stdout] help: replace the return type so that it matches the trait [INFO] [stdout] | [INFO] [stdout] 78 | ) -> impl Iterator::Coordinate>, Rc<(dyn Fn(::Item) -> bool + 'static)>)> { [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s [INFO] running `Command { std: "docker" "inspect" "2c1897e31923677a0cdd198b8b8eb2337bc9448e5310ba022f608a8b9b33f4d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c1897e31923677a0cdd198b8b8eb2337bc9448e5310ba022f608a8b9b33f4d9", kill_on_drop: false }` [INFO] [stdout] 2c1897e31923677a0cdd198b8b8eb2337bc9448e5310ba022f608a8b9b33f4d9