[INFO] cloning repository https://github.com/mhn1991/BinaryTree
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2FBinaryTree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7656902817f6da21bcc0d08e9f5b6266d92d2521
[INFO] checking mhn1991/BinaryTree against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2FBinaryTree" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mhn1991/BinaryTree on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-11/source/Cargo.toml
[INFO] crate git repo https://github.com/mhn1991/BinaryTree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70e9760ec54be7c2d0bf71d09a6a8a7a0f532ccc7a65d47f6a61ffc424f9b816
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "70e9760ec54be7c2d0bf71d09a6a8a7a0f532ccc7a65d47f6a61ffc424f9b816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70e9760ec54be7c2d0bf71d09a6a8a7a0f532ccc7a65d47f6a61ffc424f9b816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e9760ec54be7c2d0bf71d09a6a8a7a0f532ccc7a65d47f6a61ffc424f9b816", kill_on_drop: false }`
[INFO] [stdout] 70e9760ec54be7c2d0bf71d09a6a8a7a0f532ccc7a65d47f6a61ffc424f9b816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8ec17931ce8a1648f9a32cf4d82c230b7ca4b2ee7f53eeba6033b11cebfa009
[INFO] running `Command { std: "docker" "start" "-a" "a8ec17931ce8a1648f9a32cf4d82c230b7ca4b2ee7f53eeba6033b11cebfa009", kill_on_drop: false }`
[INFO] [stderr]     Checking typed-arena v2.0.0
[INFO] [stderr]     Checking BinaryTree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |         if (self.left.as_ref().unwrap().left.is_none()) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |         if (self.value.unwrap() <= value) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:136:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |             if (self.right.is_none()) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 |               if (self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 141 | |                 && self.right.as_ref().unwrap().left.is_none()
[INFO] [stdout] 142 | |                 && self.right.as_ref().unwrap().right.is_none())
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 140 |             if self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout] 141 |                 && self.right.as_ref().unwrap().left.is_none()
[INFO] [stdout] 142 |                 && self.right.as_ref().unwrap().right.is_none()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:147:16
[INFO] [stdout]     |
[INFO] [stdout] 147 |               if (self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 148 | |                 && self.right.as_ref().unwrap().right.is_some())
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 |             if self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout] 148 |                 && self.right.as_ref().unwrap().right.is_some()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:155:16
[INFO] [stdout]     |
[INFO] [stdout] 155 |               if (self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 156 | |                 && self.right.as_ref().unwrap().left.is_some())
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 155 |             if self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout] 156 |                 && self.right.as_ref().unwrap().left.is_some()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |         if (self.left.as_ref().unwrap().left.is_none()) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |         if (self.value.unwrap() <= value) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:136:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |             if (self.right.is_none()) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 |               if (self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 141 | |                 && self.right.as_ref().unwrap().left.is_none()
[INFO] [stdout] 142 | |                 && self.right.as_ref().unwrap().right.is_none())
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 140 |             if self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout] 141 |                 && self.right.as_ref().unwrap().left.is_none()
[INFO] [stdout] 142 |                 && self.right.as_ref().unwrap().right.is_none()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:147:16
[INFO] [stdout]     |
[INFO] [stdout] 147 |               if (self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 148 | |                 && self.right.as_ref().unwrap().right.is_some())
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 |             if self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout] 148 |                 && self.right.as_ref().unwrap().right.is_some()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:155:16
[INFO] [stdout]     |
[INFO] [stdout] 155 |               if (self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 156 | |                 && self.right.as_ref().unwrap().left.is_some())
[INFO] [stdout]     | |_______________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 155 |             if self.right.as_ref().unwrap().value.unwrap() == value
[INFO] [stdout] 156 |                 && self.right.as_ref().unwrap().left.is_some()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `BinaryTree` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `binary_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `findMin` should have a snake case name
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn findMin(&mut self) -> Option<i32> {
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `find_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `BinaryTree` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `binary_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `findMin` should have a snake case name
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn findMin(&mut self) -> Option<i32> {
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `find_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "a8ec17931ce8a1648f9a32cf4d82c230b7ca4b2ee7f53eeba6033b11cebfa009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8ec17931ce8a1648f9a32cf4d82c230b7ca4b2ee7f53eeba6033b11cebfa009", kill_on_drop: false }`
[INFO] [stdout] a8ec17931ce8a1648f9a32cf4d82c230b7ca4b2ee7f53eeba6033b11cebfa009