[INFO] cloning repository https://github.com/EstebanBorai/grokking-algorithms-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EstebanBorai/grokking-algorithms-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEstebanBorai%2Fgrokking-algorithms-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEstebanBorai%2Fgrokking-algorithms-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 58419c63ef7d885615dbfdb45760a32ba8f8d76f [INFO] building EstebanBorai/grokking-algorithms-rust against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEstebanBorai%2Fgrokking-algorithms-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/EstebanBorai/grokking-algorithms-rust on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/EstebanBorai/grokking-algorithms-rust [INFO] finished tweaking git repo https://github.com/EstebanBorai/grokking-algorithms-rust [INFO] tweaked toml for git repo https://github.com/EstebanBorai/grokking-algorithms-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/EstebanBorai/grokking-algorithms-rust 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8fa60c6c60229965fe37f314693e8ebd6a46fd5945237a6ed872b30d7e78c9fb [INFO] running `Command { std: "docker" "start" "-a" "8fa60c6c60229965fe37f314693e8ebd6a46fd5945237a6ed872b30d7e78c9fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8fa60c6c60229965fe37f314693e8ebd6a46fd5945237a6ed872b30d7e78c9fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8fa60c6c60229965fe37f314693e8ebd6a46fd5945237a6ed872b30d7e78c9fb", kill_on_drop: false }` [INFO] [stdout] 8fa60c6c60229965fe37f314693e8ebd6a46fd5945237a6ed872b30d7e78c9fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b505f8540620b7a41806cd96f29d3da5ad4583fff5dddb23a956dbbbbfbc7c1d [INFO] running `Command { std: "docker" "start" "-a" "b505f8540620b7a41806cd96f29d3da5ad4583fff5dddb23a956dbbbbfbc7c1d", kill_on_drop: false }` [INFO] [stderr] Compiling grokking-algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `binary_search` is never used [INFO] [stdout] --> src/binary_search.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn binary_search(list: Vec, item: T) -> Option [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/binary_search.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | #[warn(dead_code)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/dijkstras.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl<'a> Node<'a> { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 12 | fn new(name: &'a str) -> Node<'a> { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `length` and `peek` are never used [INFO] [stdout] --> src/queue.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 17 | / impl Queue [INFO] [stdout] 18 | | where [INFO] [stdout] 19 | | T: Clone, [INFO] [stdout] | |_____________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `pop`, `length`, `peek`, and `is_empty` are never used [INFO] [stdout] --> src/stack.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Stack { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 15 | /// Creates a new instance of an empty Stack [INFO] [stdout] 16 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub fn push(&mut self, element: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] running `Command { std: "docker" "inspect" "b505f8540620b7a41806cd96f29d3da5ad4583fff5dddb23a956dbbbbfbc7c1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b505f8540620b7a41806cd96f29d3da5ad4583fff5dddb23a956dbbbbfbc7c1d", kill_on_drop: false }` [INFO] [stdout] b505f8540620b7a41806cd96f29d3da5ad4583fff5dddb23a956dbbbbfbc7c1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c44d9e56c60184c86e2794bde81efe5faf8fbb6462cab2592b185671425bdd4d [INFO] running `Command { std: "docker" "start" "-a" "c44d9e56c60184c86e2794bde81efe5faf8fbb6462cab2592b185671425bdd4d", kill_on_drop: false }` [INFO] [stdout] warning: function `binary_search` is never used [INFO] [stdout] --> src/binary_search.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn binary_search(list: Vec, item: T) -> Option [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/binary_search.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | #[warn(dead_code)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/dijkstras.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl<'a> Node<'a> { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 12 | fn new(name: &'a str) -> Node<'a> { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `length` and `peek` are never used [INFO] [stdout] --> src/queue.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 17 | / impl Queue [INFO] [stdout] 18 | | where [INFO] [stdout] 19 | | T: Clone, [INFO] [stdout] | |_____________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling grokking-algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated items `new`, `push`, `pop`, `length`, `peek`, and `is_empty` are never used [INFO] [stdout] --> src/stack.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Stack { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 15 | /// Creates a new instance of an empty Stack [INFO] [stdout] 16 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub fn push(&mut self, element: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s [INFO] running `Command { std: "docker" "inspect" "c44d9e56c60184c86e2794bde81efe5faf8fbb6462cab2592b185671425bdd4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c44d9e56c60184c86e2794bde81efe5faf8fbb6462cab2592b185671425bdd4d", kill_on_drop: false }` [INFO] [stdout] c44d9e56c60184c86e2794bde81efe5faf8fbb6462cab2592b185671425bdd4d