[INFO] cloning repository https://github.com/jzw2/rust-data-structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jzw2/rust-data-structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjzw2%2Frust-data-structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjzw2%2Frust-data-structures'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6298f3c9b2a86861399b2f38c1dbf56a01acaeb1 [INFO] checking jzw2/rust-data-structures against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjzw2%2Frust-data-structures" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jzw2/rust-data-structures on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jzw2/rust-data-structures [INFO] finished tweaking git repo https://github.com/jzw2/rust-data-structures [INFO] tweaked toml for git repo https://github.com/jzw2/rust-data-structures written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jzw2/rust-data-structures 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e3c6b12e5dd7e581dbdd1dd968c1ef3e225a54218d0b37762863edf849349fc0 [INFO] running `Command { std: "docker" "start" "-a" "e3c6b12e5dd7e581dbdd1dd968c1ef3e225a54218d0b37762863edf849349fc0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e3c6b12e5dd7e581dbdd1dd968c1ef3e225a54218d0b37762863edf849349fc0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3c6b12e5dd7e581dbdd1dd968c1ef3e225a54218d0b37762863edf849349fc0", kill_on_drop: false }` [INFO] [stdout] e3c6b12e5dd7e581dbdd1dd968c1ef3e225a54218d0b37762863edf849349fc0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eecfa4f5be06e03f7f18a1e294da66511dde85c29b7eaf972c45e518286c2dbc [INFO] running `Command { std: "docker" "start" "-a" "eecfa4f5be06e03f7f18a1e294da66511dde85c29b7eaf972c45e518286c2dbc", kill_on_drop: false }` [INFO] [stderr] Checking rust-datastructures v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:21:20 [INFO] [stdout] | [INFO] [stdout] 21 | fn find(&self, key: usize) -> Option<&T> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:75:26 [INFO] [stdout] | [INFO] [stdout] 75 | fn delete(&mut self, key: usize) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `data` and `root` are never read [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct BinarySearchTree { [INFO] [stdout] | ---------------- fields in this struct [INFO] [stdout] 2 | data: Vec>, [INFO] [stdout] | ^^^^ [INFO] [stdout] 3 | [INFO] [stdout] 4 | root: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `key`, `value`, `left`, and `right` are never read [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 8 | key: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 9 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 10 | left: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | right: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `find`, `insert`, and `delete` are never used [INFO] [stdout] --> src/main.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl BinarySearchTree { [INFO] [stdout] | --------------------------- associated items in this implementation [INFO] [stdout] 17 | [INFO] [stdout] 18 | fn new() { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | fn find(&self, key: usize) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | fn insert(&mut self, key: usize, value: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 75 | fn delete(&mut self, key: usize) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:21:20 [INFO] [stdout] | [INFO] [stdout] 21 | fn find(&self, key: usize) -> Option<&T> { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:75:26 [INFO] [stdout] | [INFO] [stdout] 75 | fn delete(&mut self, key: usize) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `data` and `root` are never read [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct BinarySearchTree { [INFO] [stdout] | ---------------- fields in this struct [INFO] [stdout] 2 | data: Vec>, [INFO] [stdout] | ^^^^ [INFO] [stdout] 3 | [INFO] [stdout] 4 | root: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `key`, `value`, `left`, and `right` are never read [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 8 | key: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 9 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 10 | left: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] 11 | right: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `find`, `insert`, and `delete` are never used [INFO] [stdout] --> src/main.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl BinarySearchTree { [INFO] [stdout] | --------------------------- associated items in this implementation [INFO] [stdout] 17 | [INFO] [stdout] 18 | fn new() { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | fn find(&self, key: usize) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | fn insert(&mut self, key: usize, value: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 75 | fn delete(&mut self, key: usize) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] running `Command { std: "docker" "inspect" "eecfa4f5be06e03f7f18a1e294da66511dde85c29b7eaf972c45e518286c2dbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eecfa4f5be06e03f7f18a1e294da66511dde85c29b7eaf972c45e518286c2dbc", kill_on_drop: false }` [INFO] [stdout] eecfa4f5be06e03f7f18a1e294da66511dde85c29b7eaf972c45e518286c2dbc