[INFO] cloning repository https://github.com/jonstites/algorithms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonstites/algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonstites%2Falgorithms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonstites%2Falgorithms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c6aa15346e30e184f4abbc97963fd7333aa066e6 [INFO] testing jonstites/algorithms against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonstites%2Falgorithms" "/workspace/builds/worker-41/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-41/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jonstites/algorithms on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jonstites/algorithms [INFO] finished tweaking git repo https://github.com/jonstites/algorithms [INFO] tweaked toml for git repo https://github.com/jonstites/algorithms written to /workspace/builds/worker-41/source/Cargo.toml [INFO] crate git repo https://github.com/jonstites/algorithms already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4488b4dc811a86b7e13a8f30325fbc1793f72e3bb5047741bcc8a86e75000d7f [INFO] running `Command { std: "docker" "start" "-a" "4488b4dc811a86b7e13a8f30325fbc1793f72e3bb5047741bcc8a86e75000d7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4488b4dc811a86b7e13a8f30325fbc1793f72e3bb5047741bcc8a86e75000d7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4488b4dc811a86b7e13a8f30325fbc1793f72e3bb5047741bcc8a86e75000d7f", kill_on_drop: false }` [INFO] [stdout] 4488b4dc811a86b7e13a8f30325fbc1793f72e3bb5047741bcc8a86e75000d7f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bdf3f51183d0c888e21af28e3d72054ed5c06c026a99deb214d0f3252d35adc3 [INFO] running `Command { std: "docker" "start" "-a" "bdf3f51183d0c888e21af28e3d72054ed5c06c026a99deb214d0f3252d35adc3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling either v1.5.2 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::iter` [INFO] [stdout] --> src/lib.rs:364:9 [INFO] [stdout] | [INFO] [stdout] 364 | use std::iter; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `head` [INFO] [stdout] --> src/lib.rs:271:17 [INFO] [stdout] | [INFO] [stdout] 271 | let head = match self.to_head() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_head` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> src/lib.rs:210:9 [INFO] [stdout] | [INFO] [stdout] 210 | data: T, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `NodeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:208:14 [INFO] [stdout] | [INFO] [stdout] 208 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `nodes` [INFO] [stdout] --> src/data.rs:501:13 [INFO] [stdout] | [INFO] [stdout] 501 | nodes: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/data.rs:676:13 [INFO] [stdout] | [INFO] [stdout] 676 | value: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Trie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/data.rs:674:18 [INFO] [stdout] | [INFO] [stdout] 674 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `children` [INFO] [stdout] --> src/data.rs:677:13 [INFO] [stdout] | [INFO] [stdout] 677 | children: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Trie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/data.rs:674:18 [INFO] [stdout] | [INFO] [stdout] 674 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/data.rs:681:20 [INFO] [stdout] | [INFO] [stdout] 681 | pub fn new() -> Trie { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `contains` [INFO] [stdout] --> src/data.rs:688:20 [INFO] [stdout] | [INFO] [stdout] 688 | pub fn contains(&self, t: &str) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `contains_prefix` [INFO] [stdout] --> src/data.rs:696:20 [INFO] [stdout] | [INFO] [stdout] 696 | pub fn contains_prefix(&self, t: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `child_matches` [INFO] [stdout] --> src/data.rs:700:16 [INFO] [stdout] | [INFO] [stdout] 700 | fn child_matches(&self, t: &str) -> Option<&Trie> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add` [INFO] [stdout] --> src/data.rs:716:20 [INFO] [stdout] | [INFO] [stdout] 716 | pub fn add(&mut self, values: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_chars` [INFO] [stdout] --> src/data.rs:721:16 [INFO] [stdout] | [INFO] [stdout] 721 | fn add_chars(&mut self, values: &mut Chars) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_char` [INFO] [stdout] --> src/data.rs:731:16 [INFO] [stdout] | [INFO] [stdout] 731 | fn add_char(&mut self, value: char) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_complete` [INFO] [stdout] --> src/data.rs:747:16 [INFO] [stdout] | [INFO] [stdout] 747 | fn set_complete(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/data.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | std::mem::replace(&mut self.data, data.into_boxed_slice()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.26s [INFO] running `Command { std: "docker" "inspect" "bdf3f51183d0c888e21af28e3d72054ed5c06c026a99deb214d0f3252d35adc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bdf3f51183d0c888e21af28e3d72054ed5c06c026a99deb214d0f3252d35adc3", kill_on_drop: false }` [INFO] [stdout] bdf3f51183d0c888e21af28e3d72054ed5c06c026a99deb214d0f3252d35adc3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 766a9cad4e40302e6fefe4e9d8b85120349facf6ef0043f731991ea898e2b685 [INFO] running `Command { std: "docker" "start" "-a" "766a9cad4e40302e6fefe4e9d8b85120349facf6ef0043f731991ea898e2b685", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning: unused import: `std::iter` [INFO] [stdout] --> src/lib.rs:364:9 [INFO] [stdout] | [INFO] [stdout] 364 | use std::iter; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `head` [INFO] [stdout] --> src/lib.rs:271:17 [INFO] [stdout] | [INFO] [stdout] 271 | let head = match self.to_head() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_head` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> src/lib.rs:210:9 [INFO] [stdout] | [INFO] [stdout] 210 | data: T, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `NodeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:208:14 [INFO] [stdout] | [INFO] [stdout] 208 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `nodes` [INFO] [stdout] --> src/data.rs:501:13 [INFO] [stdout] | [INFO] [stdout] 501 | nodes: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `value` [INFO] [stdout] --> src/data.rs:676:13 [INFO] [stdout] | [INFO] [stdout] 676 | value: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Trie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/data.rs:674:18 [INFO] [stdout] | [INFO] [stdout] 674 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `children` [INFO] [stdout] --> src/data.rs:677:13 [INFO] [stdout] | [INFO] [stdout] 677 | children: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Trie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/data.rs:674:18 [INFO] [stdout] | [INFO] [stdout] 674 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/data.rs:681:20 [INFO] [stdout] | [INFO] [stdout] 681 | pub fn new() -> Trie { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `contains` [INFO] [stdout] --> src/data.rs:688:20 [INFO] [stdout] | [INFO] [stdout] 688 | pub fn contains(&self, t: &str) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `contains_prefix` [INFO] [stdout] --> src/data.rs:696:20 [INFO] [stdout] | [INFO] [stdout] 696 | pub fn contains_prefix(&self, t: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `child_matches` [INFO] [stdout] --> src/data.rs:700:16 [INFO] [stdout] | [INFO] [stdout] 700 | fn child_matches(&self, t: &str) -> Option<&Trie> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add` [INFO] [stdout] --> src/data.rs:716:20 [INFO] [stdout] | [INFO] [stdout] 716 | pub fn add(&mut self, values: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_chars` [INFO] [stdout] --> src/data.rs:721:16 [INFO] [stdout] | [INFO] [stdout] 721 | fn add_chars(&mut self, values: &mut Chars) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_char` [INFO] [stdout] --> src/data.rs:731:16 [INFO] [stdout] | [INFO] [stdout] 731 | fn add_char(&mut self, value: char) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_complete` [INFO] [stdout] --> src/data.rs:747:16 [INFO] [stdout] | [INFO] [stdout] 747 | fn set_complete(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/data.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | std::mem::replace(&mut self.data, data.into_boxed_slice()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter` [INFO] [stdout] --> src/lib.rs:364:9 [INFO] [stdout] | [INFO] [stdout] 364 | use std::iter; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `head` [INFO] [stdout] --> src/lib.rs:271:17 [INFO] [stdout] | [INFO] [stdout] 271 | let head = match self.to_head() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_head` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> src/lib.rs:210:9 [INFO] [stdout] | [INFO] [stdout] 210 | data: T, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `NodeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:208:14 [INFO] [stdout] | [INFO] [stdout] 208 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `nodes` [INFO] [stdout] --> src/data.rs:501:13 [INFO] [stdout] | [INFO] [stdout] 501 | nodes: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:346:13 [INFO] [stdout] | [INFO] [stdout] 346 | graph.add_edge(a, b); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:351:13 [INFO] [stdout] | [INFO] [stdout] 351 | graph.add_edge(c, d); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:352:13 [INFO] [stdout] | [INFO] [stdout] 352 | graph.add_edge(d, c); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/data.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | std::mem::replace(&mut self.data, data.into_boxed_slice()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.21s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/algorithms-30a50f27c9020323) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/algorithms-b660810bf5fc9ba3) [INFO] running `Command { std: "docker" "inspect" "766a9cad4e40302e6fefe4e9d8b85120349facf6ef0043f731991ea898e2b685", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "766a9cad4e40302e6fefe4e9d8b85120349facf6ef0043f731991ea898e2b685", kill_on_drop: false }` [INFO] [stdout] 766a9cad4e40302e6fefe4e9d8b85120349facf6ef0043f731991ea898e2b685 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 13e79ea565d531b86788d3e63711f1b31c3570d6e29f4fca99eaf682818b3283 [INFO] running `Command { std: "docker" "start" "-a" "13e79ea565d531b86788d3e63711f1b31c3570d6e29f4fca99eaf682818b3283", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused import: `std::iter` [INFO] [stderr] --> src/lib.rs:364:9 [INFO] [stderr] | [INFO] [stderr] 364 | use std::iter; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `head` [INFO] [stderr] --> src/lib.rs:271:17 [INFO] [stderr] | [INFO] [stderr] 271 | let head = match self.to_head() { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_head` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `data` [INFO] [stderr] --> src/lib.rs:210:9 [INFO] [stderr] | [INFO] [stderr] 210 | data: T, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `NodeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/lib.rs:208:14 [INFO] [stderr] | [INFO] [stderr] 208 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `nodes` [INFO] [stderr] --> src/data.rs:501:13 [INFO] [stderr] | [INFO] [stderr] 501 | nodes: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `value` [INFO] [stderr] --> src/data.rs:676:13 [INFO] [stderr] | [INFO] [stderr] 676 | value: Option, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Trie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/data.rs:674:18 [INFO] [stderr] | [INFO] [stderr] 674 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `children` [INFO] [stderr] --> src/data.rs:677:13 [INFO] [stderr] | [INFO] [stderr] 677 | children: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Trie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/data.rs:674:18 [INFO] [stderr] | [INFO] [stderr] 674 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data.rs:681:20 [INFO] [stderr] | [INFO] [stderr] 681 | pub fn new() -> Trie { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `contains` [INFO] [stderr] --> src/data.rs:688:20 [INFO] [stderr] | [INFO] [stderr] 688 | pub fn contains(&self, t: &str) -> bool { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `contains_prefix` [INFO] [stderr] --> src/data.rs:696:20 [INFO] [stderr] | [INFO] [stderr] 696 | pub fn contains_prefix(&self, t: &str) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `child_matches` [INFO] [stderr] --> src/data.rs:700:16 [INFO] [stderr] | [INFO] [stderr] 700 | fn child_matches(&self, t: &str) -> Option<&Trie> { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add` [INFO] [stderr] --> src/data.rs:716:20 [INFO] [stderr] | [INFO] [stderr] 716 | pub fn add(&mut self, values: &str) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add_chars` [INFO] [stderr] --> src/data.rs:721:16 [INFO] [stderr] | [INFO] [stderr] 721 | fn add_chars(&mut self, values: &mut Chars) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add_char` [INFO] [stderr] --> src/data.rs:731:16 [INFO] [stderr] | [INFO] [stderr] 731 | fn add_char(&mut self, value: char) -> usize { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_complete` [INFO] [stderr] --> src/data.rs:747:16 [INFO] [stderr] | [INFO] [stderr] 747 | fn set_complete(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/data.rs:58:21 [INFO] [stderr] | [INFO] [stderr] 58 | std::mem::replace(&mut self.data, data.into_boxed_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:346:13 [INFO] [stderr] | [INFO] [stderr] 346 | graph.add_edge(a, b); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:351:13 [INFO] [stderr] | [INFO] [stderr] 351 | graph.add_edge(c, d); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:352:13 [INFO] [stderr] | [INFO] [stderr] 352 | graph.add_edge(d, c); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/data.rs:58:21 [INFO] [stderr] | [INFO] [stderr] 58 | std::mem::replace(&mut self.data, data.into_boxed_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: `algorithms` (lib) generated 15 warnings [INFO] [stderr] warning: `algorithms` (lib test) generated 8 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.28s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/algorithms-30a50f27c9020323) [INFO] [stdout] [INFO] [stdout] running 26 tests [INFO] [stdout] test data::data::hash_set2::tests::test_add_remove ... ok [INFO] [stdout] test data::data::graph::tests::test_bfs ... ok [INFO] [stdout] test data::data::graph::tests::test_dfs ... ok [INFO] [stdout] test data::data::hash_set2::tests::test_clear ... ok [INFO] [stdout] test data::data::hash_set2::tests::test_contains ... ok [INFO] [stdout] test data::data::hash_set2::tests::test_is_empty ... ok [INFO] [stdout] test data::data::hash_set::tests::test_contains ... ok [INFO] [stdout] test data::data::stack::tests::test_peek_size_is_empty ... ok [INFO] [stdout] test linked_list::tests::test_into_iter ... ok [INFO] [stdout] test linked_list::tests::test_iter ... ok [INFO] [stdout] test linked_list::tests::test_iter_mut ... ok [INFO] [stdout] test data::data::hash_set::tests::test_clear ... ok [INFO] [stdout] test data::data::trie::tests::test_contains ... ok [INFO] [stdout] test linked_list::tests::test_peek ... ok [INFO] [stdout] test linked_list::tests::test_empty ... ok [INFO] [stdout] test data::data::stack::tests::test_push_pop ... ok [INFO] [stdout] test data::data::hash_set::tests::test_is_empty ... ok [INFO] [stdout] test linked_list::tests::test_peek_mut ... ok [INFO] [stdout] test data::data::hash_set::tests::test_add_remove ... ok [INFO] [stdout] test linked_list::tests::test_push_pop ... ok [INFO] [stdout] test old_graph::tests::test_is_tree ... ok [INFO] [stdout] test primes::tests::test_sieve_of_eratosthenes_odds ... ok [INFO] [stdout] test primes::tests::test_sieve_of_eratosthenes_naive ... ok [INFO] [stdout] test data::data::hash_set::tests::test_benchmarks_tolerable ... ok [INFO] [stdout] test primes::tests::test_trial_division ... ok [INFO] [stdout] test data::data::hash_set2::tests::test_benchmarks_tolerable ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 8.99s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/algorithms-b660810bf5fc9ba3) [INFO] [stdout] [INFO] [stderr] Doc-tests algorithms [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "13e79ea565d531b86788d3e63711f1b31c3570d6e29f4fca99eaf682818b3283", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13e79ea565d531b86788d3e63711f1b31c3570d6e29f4fca99eaf682818b3283", kill_on_drop: false }` [INFO] [stdout] 13e79ea565d531b86788d3e63711f1b31c3570d6e29f4fca99eaf682818b3283