[INFO] fetching crate mlinrust 0.1.0... [INFO] checking mlinrust-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate mlinrust 0.1.0 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate mlinrust 0.1.0 [INFO] finished tweaking crates.io crate mlinrust 0.1.0 [INFO] tweaked toml for crates.io crate mlinrust 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate mlinrust 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate mlinrust 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2b728e8401b3edfac8b0017b139b124941c8ea60483f13900f52425aa11def9a [INFO] running `Command { std: "docker" "start" "-a" "2b728e8401b3edfac8b0017b139b124941c8ea60483f13900f52425aa11def9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2b728e8401b3edfac8b0017b139b124941c8ea60483f13900f52425aa11def9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b728e8401b3edfac8b0017b139b124941c8ea60483f13900f52425aa11def9a", kill_on_drop: false }` [INFO] [stdout] 2b728e8401b3edfac8b0017b139b124941c8ea60483f13900f52425aa11def9a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c2abb4443baa022c11a4dba44a40b602a409753e1bac7ab76ae5f641e9aa41e [INFO] running `Command { std: "docker" "start" "-a" "9c2abb4443baa022c11a4dba44a40b602a409753e1bac7ab76ae5f641e9aa41e", kill_on_drop: false }` [INFO] [stderr] Checking mlinrust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/model/decision_tree.rs:97:51 [INFO] [stdout] | [INFO] [stdout] 97 | let mut node = self.root.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Box>` does not implement `Clone`, so calling `clone` on `&Box>` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 97 - let mut node = self.root.as_ref().unwrap().clone(); [INFO] [stdout] 97 + let mut node = self.root.as_ref().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/model/decision_tree.rs:101:52 [INFO] [stdout] | [INFO] [stdout] 101 | node = &node.left.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Box>` does not implement `Clone`, so calling `clone` on `&Box>` copies the reference, which does not do anything and can be removed [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 101 - node = &node.left.as_ref().unwrap().clone(); [INFO] [stdout] 101 + node = &node.left.as_ref().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/model/decision_tree.rs:103:53 [INFO] [stdout] | [INFO] [stdout] 103 | node = &node.right.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Box>` does not implement `Clone`, so calling `clone` on `&Box>` copies the reference, which does not do anything and can be removed [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 103 - node = &node.right.as_ref().unwrap().clone(); [INFO] [stdout] 103 + node = &node.right.as_ref().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/model/knn.rs:310:20 [INFO] [stdout] | [INFO] [stdout] 310 | pub fn nearest(&self, query: &Vec) -> Vec> { [INFO] [stdout] | ^^^^^ -------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 310 | pub fn nearest(&self, query: &Vec) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/model/decision_tree.rs:97:51 [INFO] [stdout] | [INFO] [stdout] 97 | let mut node = self.root.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Box>` does not implement `Clone`, so calling `clone` on `&Box>` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 97 - let mut node = self.root.as_ref().unwrap().clone(); [INFO] [stdout] 97 + let mut node = self.root.as_ref().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/model/decision_tree.rs:101:52 [INFO] [stdout] | [INFO] [stdout] 101 | node = &node.left.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Box>` does not implement `Clone`, so calling `clone` on `&Box>` copies the reference, which does not do anything and can be removed [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 101 - node = &node.left.as_ref().unwrap().clone(); [INFO] [stdout] 101 + node = &node.left.as_ref().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/model/decision_tree.rs:103:53 [INFO] [stdout] | [INFO] [stdout] 103 | node = &node.right.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the type `Box>` does not implement `Clone`, so calling `clone` on `&Box>` copies the reference, which does not do anything and can be removed [INFO] [stdout] help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] 103 - node = &node.right.as_ref().unwrap().clone(); [INFO] [stdout] 103 + node = &node.right.as_ref().unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/model/knn.rs:310:20 [INFO] [stdout] | [INFO] [stdout] 310 | pub fn nearest(&self, query: &Vec) -> Vec> { [INFO] [stdout] | ^^^^^ -------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 310 | pub fn nearest(&self, query: &Vec) -> Vec> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.32s [INFO] running `Command { std: "docker" "inspect" "9c2abb4443baa022c11a4dba44a40b602a409753e1bac7ab76ae5f641e9aa41e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c2abb4443baa022c11a4dba44a40b602a409753e1bac7ab76ae5f641e9aa41e", kill_on_drop: false }` [INFO] [stdout] 9c2abb4443baa022c11a4dba44a40b602a409753e1bac7ab76ae5f641e9aa41e