[INFO] cloning repository https://github.com/mhn1991/BinaryTree [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mhn1991/BinaryTree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2FBinaryTree"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2FBinaryTree'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7656902817f6da21bcc0d08e9f5b6266d92d2521 [INFO] checking mhn1991/BinaryTree against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2FBinaryTree" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mhn1991/BinaryTree on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/mhn1991/BinaryTree [INFO] finished tweaking git repo https://github.com/mhn1991/BinaryTree [INFO] tweaked toml for git repo https://github.com/mhn1991/BinaryTree written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/mhn1991/BinaryTree already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded typed-arena v2.0.0 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] c4c335efafa233ed02eab4db019a1f81bb29921ccef6f538df5edbd7b37353ac [INFO] running `"docker" "start" "-a" "c4c335efafa233ed02eab4db019a1f81bb29921ccef6f538df5edbd7b37353ac"` [INFO] [stderr] Checking typed-arena v2.0.0 [INFO] [stderr] Checking BinaryTree v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:67:12 [INFO] [stderr] | [INFO] [stderr] 67 | if (self.left.as_ref().unwrap().left.is_none()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:135:12 [INFO] [stderr] | [INFO] [stderr] 135 | if (self.value.unwrap() <= value) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:136:16 [INFO] [stderr] | [INFO] [stderr] 136 | if (self.right.is_none()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:140:16 [INFO] [stderr] | [INFO] [stderr] 140 | if (self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] | ________________^ [INFO] [stderr] 141 | | && self.right.as_ref().unwrap().left.is_none() [INFO] [stderr] 142 | | && self.right.as_ref().unwrap().right.is_none()) [INFO] [stderr] | |________________________________________________________________^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 140 | if self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] 141 | && self.right.as_ref().unwrap().left.is_none() [INFO] [stderr] 142 | && self.right.as_ref().unwrap().right.is_none() [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:147:16 [INFO] [stderr] | [INFO] [stderr] 147 | if (self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] | ________________^ [INFO] [stderr] 148 | | && self.right.as_ref().unwrap().right.is_some()) [INFO] [stderr] | |________________________________________________________________^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 147 | if self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] 148 | && self.right.as_ref().unwrap().right.is_some() [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:155:16 [INFO] [stderr] | [INFO] [stderr] 155 | if (self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] | ________________^ [INFO] [stderr] 156 | | && self.right.as_ref().unwrap().left.is_some()) [INFO] [stderr] | |_______________________________________________________________^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 155 | if self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] 156 | && self.right.as_ref().unwrap().left.is_some() [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:67:12 [INFO] [stderr] | [INFO] [stderr] 67 | if (self.left.as_ref().unwrap().left.is_none()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:135:12 [INFO] [stderr] | [INFO] [stderr] 135 | if (self.value.unwrap() <= value) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:136:16 [INFO] [stderr] | [INFO] [stderr] 136 | if (self.right.is_none()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:140:16 [INFO] [stderr] | [INFO] [stderr] 140 | if (self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] | ________________^ [INFO] [stderr] 141 | | && self.right.as_ref().unwrap().left.is_none() [INFO] [stderr] 142 | | && self.right.as_ref().unwrap().right.is_none()) [INFO] [stderr] | |________________________________________________________________^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 140 | if self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] 141 | && self.right.as_ref().unwrap().left.is_none() [INFO] [stderr] 142 | && self.right.as_ref().unwrap().right.is_none() [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:147:16 [INFO] [stderr] | [INFO] [stderr] 147 | if (self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] | ________________^ [INFO] [stderr] 148 | | && self.right.as_ref().unwrap().right.is_some()) [INFO] [stderr] | |________________________________________________________________^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 147 | if self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] 148 | && self.right.as_ref().unwrap().right.is_some() [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:155:16 [INFO] [stderr] | [INFO] [stderr] 155 | if (self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] | ________________^ [INFO] [stderr] 156 | | && self.right.as_ref().unwrap().left.is_some()) [INFO] [stderr] | |_______________________________________________________________^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 155 | if self.right.as_ref().unwrap().value.unwrap() == value [INFO] [stderr] 156 | && self.right.as_ref().unwrap().left.is_some() [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: crate `BinaryTree` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `binary_tree` [INFO] [stderr] [INFO] [stderr] warning: method `findMin` should have a snake case name [INFO] [stderr] --> src/main.rs:64:8 [INFO] [stderr] | [INFO] [stderr] 64 | fn findMin(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `find_min` [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: crate `BinaryTree` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `binary_tree` [INFO] [stderr] [INFO] [stderr] warning: method `findMin` should have a snake case name [INFO] [stderr] --> src/main.rs:64:8 [INFO] [stderr] | [INFO] [stderr] 64 | fn findMin(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `find_min` [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.18s [INFO] running `"docker" "inspect" "c4c335efafa233ed02eab4db019a1f81bb29921ccef6f538df5edbd7b37353ac"` [INFO] running `"docker" "rm" "-f" "c4c335efafa233ed02eab4db019a1f81bb29921ccef6f538df5edbd7b37353ac"` [INFO] [stdout] c4c335efafa233ed02eab4db019a1f81bb29921ccef6f538df5edbd7b37353ac