[INFO] cloning repository https://github.com/sdttttt/RBTree-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdttttt/RBTree-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdttttt%2FRBTree-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdttttt%2FRBTree-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ca02c1d8b84f8c3c6e3f70a65bbfc6ee81e7be2e [INFO] checking sdttttt/RBTree-Rust against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdttttt%2FRBTree-Rust" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sdttttt/RBTree-Rust on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sdttttt/RBTree-Rust [INFO] finished tweaking git repo https://github.com/sdttttt/RBTree-Rust [INFO] tweaked toml for git repo https://github.com/sdttttt/RBTree-Rust written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/sdttttt/RBTree-Rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4269bd616564512be5ef392044dfede70d573b38452cda4cb201b3e8c7b210c5 [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" "4269bd616564512be5ef392044dfede70d573b38452cda4cb201b3e8c7b210c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4269bd616564512be5ef392044dfede70d573b38452cda4cb201b3e8c7b210c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4269bd616564512be5ef392044dfede70d573b38452cda4cb201b3e8c7b210c5", kill_on_drop: false }` [INFO] [stdout] 4269bd616564512be5ef392044dfede70d573b38452cda4cb201b3e8c7b210c5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 604f93e7b00841fcedb23ef6b77d31fff3e19ea6bd0098ab8d752e2c4945533c [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" "604f93e7b00841fcedb23ef6b77d31fff3e19ea6bd0098ab8d752e2c4945533c", kill_on_drop: false }` [INFO] [stderr] Checking red-black-tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `node_p` is assigned to, but never used [INFO] [stdout] --> src/main.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 43 | let mut node_p: SchrodingerNode; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_node_p` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `node_p` is never read [INFO] [stdout] --> src/main.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | node_p = node.clone(); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:41:26 [INFO] [stdout] | [INFO] [stdout] 41 | fn insert(&self,k:K, v: V) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_node` [INFO] [stdout] --> src/main.rs:104:13 [INFO] [stdout] | [INFO] [stdout] 104 | let new_node = Some(Box::new(Node::new(key, value))); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `node_p` is assigned to, but never used [INFO] [stdout] --> src/main.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 43 | let mut node_p: SchrodingerNode; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_node_p` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `node_p` is never read [INFO] [stdout] --> src/main.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | node_p = node.clone(); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:41:26 [INFO] [stdout] | [INFO] [stdout] 41 | fn insert(&self,k:K, v: V) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_node` [INFO] [stdout] --> src/main.rs:104:13 [INFO] [stdout] | [INFO] [stdout] 104 | let new_node = Some(Box::new(Node::new(key, value))); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:42:13 [INFO] [stdout] | [INFO] [stdout] 42 | let mut node: SchrodingerNode; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:42:13 [INFO] [stdout] | [INFO] [stdout] 42 | let mut node: SchrodingerNode; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `BLACK` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | BLACK, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tree` [INFO] [stdout] --> src/main.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Tree { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | value: V, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `color` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | color: Color, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | fn new() -> Tree { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `insert` [INFO] [stdout] --> src/main.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | fn insert(&self,k:K, v: V) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `BLACK` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | BLACK, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tree` [INFO] [stdout] --> src/main.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Tree { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | value: V, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `color` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | color: Color, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | fn new() -> Tree { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `insert` [INFO] [stdout] --> src/main.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | fn insert(&self,k:K, v: V) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.31s [INFO] running `Command { std: "docker" "inspect" "604f93e7b00841fcedb23ef6b77d31fff3e19ea6bd0098ab8d752e2c4945533c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "604f93e7b00841fcedb23ef6b77d31fff3e19ea6bd0098ab8d752e2c4945533c", kill_on_drop: false }` [INFO] [stdout] 604f93e7b00841fcedb23ef6b77d31fff3e19ea6bd0098ab8d752e2c4945533c