[INFO] cloning repository https://github.com/nuclearpesto/rust-binary-tree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nuclearpesto/rust-binary-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuclearpesto%2Frust-binary-tree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuclearpesto%2Frust-binary-tree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e03f93f02462e0ed812e0d43f525598f29b072aa [INFO] testing nuclearpesto/rust-binary-tree against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnuclearpesto%2Frust-binary-tree" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nuclearpesto/rust-binary-tree on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nuclearpesto/rust-binary-tree [INFO] finished tweaking git repo https://github.com/nuclearpesto/rust-binary-tree [INFO] tweaked toml for git repo https://github.com/nuclearpesto/rust-binary-tree written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/nuclearpesto/rust-binary-tree already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6a1e7b9708822df1a7784006aec40844510c4491f23a51a6e226b84b5b37d4f8 [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" "6a1e7b9708822df1a7784006aec40844510c4491f23a51a6e226b84b5b37d4f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a1e7b9708822df1a7784006aec40844510c4491f23a51a6e226b84b5b37d4f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a1e7b9708822df1a7784006aec40844510c4491f23a51a6e226b84b5b37d4f8", kill_on_drop: false }` [INFO] [stdout] 6a1e7b9708822df1a7784006aec40844510c4491f23a51a6e226b84b5b37d4f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0e13eda60718ccf31c2c939c1732f1efe75c658560db86e5067901992749f4b5 [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" "0e13eda60718ccf31c2c939c1732f1efe75c658560db86e5067901992749f4b5", kill_on_drop: false }` [INFO] [stderr] Compiling binarytree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:28:62 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn insert(tree: &Option>, key: &str) -> (Option>) { [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 type [INFO] [stdout] --> src/main.rs:35:51 [INFO] [stdout] | [INFO] [stdout] 35 | fn clone_node(node: &Option>) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:41:35 [INFO] [stdout] | [INFO] [stdout] 41 | fn new_leaf(key: &str) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:49:55 [INFO] [stdout] | [INFO] [stdout] 49 | fn tree_by_key(tree: &Rc, key: &str) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `Less` is named the same as one of the variants of the type `std::cmp::Ordering` [INFO] [stdout] --> src/main.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Less` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `Equal` is named the same as one of the variants of the type `std::cmp::Ordering` [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Equal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ---- matches any value [INFO] [stdout] ... [INFO] [stdout] 61 | More => { [INFO] [stdout] | ^^^^ unreachable pattern [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ---- matches any value [INFO] [stdout] ... [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ unreachable pattern [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Less` [INFO] [stdout] --> src/main.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Less` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `More` [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | More => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_More` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Equal` [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_Equal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `insert` [INFO] [stdout] --> src/main.rs:8:16 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn insert(tree: &BTree, key: &str) -> BTree { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn new(key: &str) -> BTree { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `insert` [INFO] [stdout] --> src/main.rs:28:16 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn insert(tree: &Option>, key: &str) -> (Option>) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `clone_node` [INFO] [stdout] --> src/main.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | fn clone_node(node: &Option>) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_leaf` [INFO] [stdout] --> src/main.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 41 | fn new_leaf(key: &str) -> (Option>) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tree_by_key` [INFO] [stdout] --> src/main.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | fn tree_by_key(tree: &Rc, key: &str) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Less` should have a snake case name [INFO] [stdout] --> src/main.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `less` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `More` should have a snake case name [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | More => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `more` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Equal` should have a snake case name [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `equal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.56s [INFO] running `Command { std: "docker" "inspect" "0e13eda60718ccf31c2c939c1732f1efe75c658560db86e5067901992749f4b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e13eda60718ccf31c2c939c1732f1efe75c658560db86e5067901992749f4b5", kill_on_drop: false }` [INFO] [stdout] 0e13eda60718ccf31c2c939c1732f1efe75c658560db86e5067901992749f4b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--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] 78ea0418730add1176a1514d8ab9251d7ccbb9ba27c51e65d35f4aa2519f8722 [INFO] running `Command { std: "docker" "start" "-a" "78ea0418730add1176a1514d8ab9251d7ccbb9ba27c51e65d35f4aa2519f8722", kill_on_drop: false }` [INFO] [stderr] Compiling binarytree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:28:62 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn insert(tree: &Option>, key: &str) -> (Option>) { [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 type [INFO] [stdout] --> src/main.rs:35:51 [INFO] [stdout] | [INFO] [stdout] 35 | fn clone_node(node: &Option>) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:41:35 [INFO] [stdout] | [INFO] [stdout] 41 | fn new_leaf(key: &str) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:49:55 [INFO] [stdout] | [INFO] [stdout] 49 | fn tree_by_key(tree: &Rc, key: &str) -> (Option>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `Less` is named the same as one of the variants of the type `std::cmp::Ordering` [INFO] [stdout] --> src/main.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Less` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `Equal` is named the same as one of the variants of the type `std::cmp::Ordering` [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Equal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ---- matches any value [INFO] [stdout] ... [INFO] [stdout] 61 | More => { [INFO] [stdout] | ^^^^ unreachable pattern [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ---- matches any value [INFO] [stdout] ... [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ unreachable pattern [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Less` [INFO] [stdout] --> src/main.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Less` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `More` [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | More => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_More` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Equal` [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_Equal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Less` should have a snake case name [INFO] [stdout] --> src/main.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | Less => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `less` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `More` should have a snake case name [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | More => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `more` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Equal` should have a snake case name [INFO] [stdout] --> src/main.rs:67:17 [INFO] [stdout] | [INFO] [stdout] 67 | Equal => { [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `equal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `Command { std: "docker" "inspect" "78ea0418730add1176a1514d8ab9251d7ccbb9ba27c51e65d35f4aa2519f8722", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78ea0418730add1176a1514d8ab9251d7ccbb9ba27c51e65d35f4aa2519f8722", kill_on_drop: false }` [INFO] [stdout] 78ea0418730add1176a1514d8ab9251d7ccbb9ba27c51e65d35f4aa2519f8722 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", 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] f3a2b3f261371d6a303351fa35aaf2cffc39124c1bd05a8674ee9bbc3e8738ff [INFO] running `Command { std: "docker" "start" "-a" "f3a2b3f261371d6a303351fa35aaf2cffc39124c1bd05a8674ee9bbc3e8738ff", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/main.rs:28:62 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn insert(tree: &Option>, key: &str) -> (Option>) { [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 type [INFO] [stderr] --> src/main.rs:35:51 [INFO] [stderr] | [INFO] [stderr] 35 | fn clone_node(node: &Option>) -> (Option>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/main.rs:41:35 [INFO] [stderr] | [INFO] [stderr] 41 | fn new_leaf(key: &str) -> (Option>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/main.rs:49:55 [INFO] [stderr] | [INFO] [stderr] 49 | fn tree_by_key(tree: &Rc, key: &str) -> (Option>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `Less` is named the same as one of the variants of the type `std::cmp::Ordering` [INFO] [stderr] --> src/main.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | Less => { [INFO] [stderr] | ^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Less` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `Equal` is named the same as one of the variants of the type `std::cmp::Ordering` [INFO] [stderr] --> src/main.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 67 | Equal => { [INFO] [stderr] | ^^^^^ help: to match on the variant, qualify the path: `std::cmp::Ordering::Equal` [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:61:17 [INFO] [stderr] | [INFO] [stderr] 55 | Less => { [INFO] [stderr] | ---- matches any value [INFO] [stderr] ... [INFO] [stderr] 61 | More => { [INFO] [stderr] | ^^^^ unreachable pattern [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 55 | Less => { [INFO] [stderr] | ---- matches any value [INFO] [stderr] ... [INFO] [stderr] 67 | Equal => { [INFO] [stderr] | ^^^^^ unreachable pattern [INFO] [stderr] [INFO] [stderr] warning: unused variable: `Less` [INFO] [stderr] --> src/main.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | Less => { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Less` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `More` [INFO] [stderr] --> src/main.rs:61:17 [INFO] [stderr] | [INFO] [stderr] 61 | More => { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_More` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `Equal` [INFO] [stderr] --> src/main.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 67 | Equal => { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_Equal` [INFO] [stderr] [INFO] [stderr] warning: variable `Less` should have a snake case name [INFO] [stderr] --> src/main.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | Less => { [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `less` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `More` should have a snake case name [INFO] [stderr] --> src/main.rs:61:17 [INFO] [stderr] | [INFO] [stderr] 61 | More => { [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `more` [INFO] [stderr] [INFO] [stderr] warning: variable `Equal` should have a snake case name [INFO] [stderr] --> src/main.rs:67:17 [INFO] [stderr] | [INFO] [stderr] 67 | Equal => { [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `equal` [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0170`. [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/binarytree-1507da22dcc69c6f [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tree::test::new_btree_works ... ok [INFO] [stdout] test tree::test::insert_one_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f3a2b3f261371d6a303351fa35aaf2cffc39124c1bd05a8674ee9bbc3e8738ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3a2b3f261371d6a303351fa35aaf2cffc39124c1bd05a8674ee9bbc3e8738ff", kill_on_drop: false }` [INFO] [stdout] f3a2b3f261371d6a303351fa35aaf2cffc39124c1bd05a8674ee9bbc3e8738ff