[INFO] cloning repository https://github.com/TheCre8tor/the_rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheCre8tor/the_rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCre8tor%2Fthe_rust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCre8tor%2Fthe_rust_book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 06b69de4dbf14279fa50dd737831612efb277a22 [INFO] checking TheCre8tor/the_rust_book against master#d97bb195bf7b84815622b235cb51171c1b8f7e51 for pr-117905 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCre8tor%2Fthe_rust_book" "/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/TheCre8tor/the_rust_book on toolchain d97bb195bf7b84815622b235cb51171c1b8f7e51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d97bb195bf7b84815622b235cb51171c1b8f7e51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TheCre8tor/the_rust_book [INFO] finished tweaking git repo https://github.com/TheCre8tor/the_rust_book [INFO] tweaked toml for git repo https://github.com/TheCre8tor/the_rust_book written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/TheCre8tor/the_rust_book 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" "+d97bb195bf7b84815622b235cb51171c1b8f7e51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking TheCre8tor/the_rust_book against try#1930f260edd7e614aa013a0665aa5cfd0ada0501 for pr-117905 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCre8tor%2Fthe_rust_book" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/TheCre8tor/the_rust_book on toolchain 1930f260edd7e614aa013a0665aa5cfd0ada0501 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1930f260edd7e614aa013a0665aa5cfd0ada0501" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TheCre8tor/the_rust_book [INFO] finished tweaking git repo https://github.com/TheCre8tor/the_rust_book [INFO] tweaked toml for git repo https://github.com/TheCre8tor/the_rust_book written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/TheCre8tor/the_rust_book 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" "+1930f260edd7e614aa013a0665aa5cfd0ada0501" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking TheCre8tor/the_rust_book against try#1930f260edd7e614aa013a0665aa5cfd0ada0501 for pr-117905 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheCre8tor%2Fthe_rust_book" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/TheCre8tor/the_rust_book on toolchain 1930f260edd7e614aa013a0665aa5cfd0ada0501 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1930f260edd7e614aa013a0665aa5cfd0ada0501" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TheCre8tor/the_rust_book [INFO] finished tweaking git repo https://github.com/TheCre8tor/the_rust_book [INFO] tweaked toml for git repo https://github.com/TheCre8tor/the_rust_book written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/TheCre8tor/the_rust_book 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" "+1930f260edd7e614aa013a0665aa5cfd0ada0501" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+1930f260edd7e614aa013a0665aa5cfd0ada0501" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d35e0d0632f3a646d7eeb164363ebacef8d328d1e48b022e94813b244e388d12 [INFO] running `Command { std: "docker" "start" "-a" "d35e0d0632f3a646d7eeb164363ebacef8d328d1e48b022e94813b244e388d12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d35e0d0632f3a646d7eeb164363ebacef8d328d1e48b022e94813b244e388d12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d35e0d0632f3a646d7eeb164363ebacef8d328d1e48b022e94813b244e388d12", kill_on_drop: false }` [INFO] [stdout] d35e0d0632f3a646d7eeb164363ebacef8d328d1e48b022e94813b244e388d12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+1930f260edd7e614aa013a0665aa5cfd0ada0501" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6b3f1fbe4ac3f1a247474920cfcf2ddce08aa73aee260eeb05922d6d249ee164 [INFO] running `Command { std: "docker" "start" "-a" "6b3f1fbe4ac3f1a247474920cfcf2ddce08aa73aee260eeb05922d6d249ee164", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.125 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking the-rust-book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_4/references_and_borrowing.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_4/references_and_borrowing.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_length` is never used [INFO] [stdout] --> src/chapter_4/references_and_borrowing.rs:33:4 [INFO] [stdout] | [INFO] [stdout] 33 | fn calculate_length(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_length` is never used [INFO] [stdout] --> src/chapter_4/references_and_borrowing.rs:33:4 [INFO] [stdout] | [INFO] [stdout] 33 | fn calculate_length(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_4/./the_slice_type.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_4/./the_slice_type.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_world` is never used [INFO] [stdout] --> src/chapter_4/./the_slice_type.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn first_world(stra: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_world` is never used [INFO] [stdout] --> src/chapter_4/./the_slice_type.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn first_world(stra: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, `email`, and `sign_in_count` are never read [INFO] [stdout] --> src/chapter_5/define_and_instantiate.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 9 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 10 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 11 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 12 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, `email`, and `sign_in_count` are never read [INFO] [stdout] --> src/chapter_5/define_and_instantiate.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 9 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 10 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 11 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 12 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_5/define_and_instantiate.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> src/chapter_5/define_and_instantiate.rs:40:4 [INFO] [stdout] | [INFO] [stdout] 40 | fn build_user(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_5/define_and_instantiate.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> src/chapter_5/define_and_instantiate.rs:40:4 [INFO] [stdout] | [INFO] [stdout] 40 | fn build_user(email: String, username: String) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width` and `height` are never read [INFO] [stdout] --> src/chapter_5/./structs_example.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 3 | width: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_5/./structs_example.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width` and `height` are never read [INFO] [stdout] --> src/chapter_5/./structs_example.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 3 | width: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `area` is never used [INFO] [stdout] --> src/chapter_5/./structs_example.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_5/./structs_example.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `area` is never used [INFO] [stdout] --> src/chapter_5/./structs_example.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width` and `height` are never read [INFO] [stdout] --> src/chapter_5/./method_syntax.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 3 | width: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width` and `height` are never read [INFO] [stdout] --> src/chapter_5/./method_syntax.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 3 | width: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `area`, `can_hold`, and `from` are never used [INFO] [stdout] --> src/chapter_5/./method_syntax.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Rectangle { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 8 | // This is a method -> Instantiated Method [INFO] [stdout] 9 | fn area(&self) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | fn can_hold(&self, data: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | fn from(height: u32, width: u32) -> Rectangle { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_5/./method_syntax.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IPAddrKind` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | enum IPAddrKind { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `area`, `can_hold`, and `from` are never used [INFO] [stdout] --> src/chapter_5/./method_syntax.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Rectangle { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 8 | // This is a method -> Instantiated Method [INFO] [stdout] 9 | fn area(&self) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | fn can_hold(&self, data: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | fn from(height: u32, width: u32) -> Rectangle { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_5/./method_syntax.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IPAddrKind` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | enum IPAddrKind { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `V4` and `V6` are never constructed [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum IPAddr { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 10 | V4(String), [INFO] [stdout] | ^^ [INFO] [stdout] 11 | V6(String) [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `IPAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 15 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `V4` and `V6` are never constructed [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum IPAddr { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 10 | V4(String), [INFO] [stdout] | ^^ [INFO] [stdout] 11 | V6(String) [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `IPAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 15 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `route` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn route(_ip_kind: IPAddrKind) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn run() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `route` is never used [INFO] [stdout] --> src/chapter_6/defining_an_enum.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn route(_ip_kind: IPAddrKind) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed [INFO] [stdout] --> src/chapter_6/match_control_flow.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 2 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 4 | Dime, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed [INFO] [stdout] --> src/chapter_6/match_control_flow.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 2 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 3 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 4 | Dime, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Alabama` is never constructed [INFO] [stdout] --> src/chapter_6/match_control_flow.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum UsState { [INFO] [stdout] | ------- variant in this enum [INFO] [stdout] 10 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Alabama` is never constructed [INFO] [stdout] --> src/chapter_6/match_control_flow.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum UsState { [INFO] [stdout] | ------- variant in this enum [INFO] [stdout] 10 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.28s [INFO] running `Command { std: "docker" "inspect" "6b3f1fbe4ac3f1a247474920cfcf2ddce08aa73aee260eeb05922d6d249ee164", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b3f1fbe4ac3f1a247474920cfcf2ddce08aa73aee260eeb05922d6d249ee164", kill_on_drop: false }` [INFO] [stdout] 6b3f1fbe4ac3f1a247474920cfcf2ddce08aa73aee260eeb05922d6d249ee164