[INFO] cloning repository https://github.com/CarlosLaraFP/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/CarlosLaraFP/rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarlosLaraFP%2Frust-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarlosLaraFP%2Frust-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 18936fd9d0997a70166eb60858ec610172836863 [INFO] checking CarlosLaraFP/rust-book against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarlosLaraFP%2Frust-book" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/CarlosLaraFP/rust-book [INFO] finished tweaking git repo https://github.com/CarlosLaraFP/rust-book [INFO] tweaked toml for git repo https://github.com/CarlosLaraFP/rust-book written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/CarlosLaraFP/rust-book on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/CarlosLaraFP/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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8b277f6ec531d52028b9d8e4aa1c81880a5c97d59755a78b1e587a752eaae75f [INFO] running `Command { std: "docker" "start" "-a" "8b277f6ec531d52028b9d8e4aa1c81880a5c97d59755a78b1e587a752eaae75f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8b277f6ec531d52028b9d8e4aa1c81880a5c97d59755a78b1e587a752eaae75f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b277f6ec531d52028b9d8e4aa1c81880a5c97d59755a78b1e587a752eaae75f", kill_on_drop: false }` [INFO] [stdout] 8b277f6ec531d52028b9d8e4aa1c81880a5c97d59755a78b1e587a752eaae75f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a7d209f4d4dd4d1d3521db1301b947c4dd87f8e8558527113b8d7b6a993cab45 [INFO] running `Command { std: "docker" "start" "-a" "a7d209f4d4dd4d1d3521db1301b947c4dd87f8e8558527113b8d7b6a993cab45", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.145 [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Compiling anyhow v1.0.71 [INFO] [stderr] Checking hello_macro v0.1.0 (/opt/rustwide/workdir/hello_macro) [INFO] [stderr] Checking getrandom v0.2.9 [INFO] [stderr] Compiling quote v1.0.32 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling syn v2.0.27 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling hello_macro_derive v0.1.0 (/opt/rustwide/workdir/hello_macro_derive) [INFO] [stderr] Checking rust-book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::*` [INFO] [stdout] --> src/lib.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | use std::collections::*; // glob operator [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/lib.rs:47:15 [INFO] [stdout] | [INFO] [stdout] 47 | use std::io::{self, Write}; // brings std::io and std::io::Write into scope [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::*` [INFO] [stdout] --> src/lib.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | use std::collections::*; // glob operator [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/lib.rs:47:15 [INFO] [stdout] | [INFO] [stdout] 47 | use std::io::{self, Write}; // brings std::io and std::io::Write into scope [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/oop.rs:157:27 [INFO] [stdout] | [INFO] [stdout] 157 | fn content<'a>(&self, post: &'a Post) -> &'a str { "" } [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `order1` [INFO] [stdout] --> src/lib.rs:109:9 [INFO] [stdout] | [INFO] [stdout] 109 | let order1 = back_of_house::Appetizer::Soup; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_order1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `order2` [INFO] [stdout] --> src/lib.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | let order2 = back_of_house::Appetizer::Salad; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_order2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:182:16 [INFO] [stdout] | [INFO] [stdout] 182 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:182:34 [INFO] [stdout] | [INFO] [stdout] 182 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `deliver_order` is never used [INFO] [stdout] --> src/lib.rs:148:4 [INFO] [stdout] | [INFO] [stdout] 148 | fn deliver_order() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `function1` is never used [INFO] [stdout] --> src/lib.rs:153:4 [INFO] [stdout] | [INFO] [stdout] 153 | fn function1() -> fmt::Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `function2` is never used [INFO] [stdout] --> src/lib.rs:157:4 [INFO] [stdout] | [INFO] [stdout] 157 | fn function2() -> IoResult<()> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> src/front_of_house/hosting.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> src/front_of_house/serving.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> src/front_of_house/serving.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> src/front_of_house/serving.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `greeting` is never used [INFO] [stdout] --> src/unit_tests.rs:118:8 [INFO] [stdout] | [INFO] [stdout] 118 | pub fn greeting(name: &str) -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_two` is never used [INFO] [stdout] --> src/unit_tests.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn add_two(a: i32) -> i32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Shoe` is never constructed [INFO] [stdout] --> src/shoes.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Shoe { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shoes_in_size` is never used [INFO] [stdout] --> src/shoes.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `AveragedCollection` is never constructed [INFO] [stdout] --> src/oop.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 64 | pub struct AveragedCollection { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `seasonal_fruit` is never read [INFO] [stdout] --> src/lib.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 114 | pub struct Breakfast { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 115 | pub toast: String, [INFO] [stdout] 116 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fix_incorrect_order` is never used [INFO] [stdout] --> src/lib.rs:140:8 [INFO] [stdout] | [INFO] [stdout] 140 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cook_order` is never used [INFO] [stdout] --> src/lib.rs:145:8 [INFO] [stdout] | [INFO] [stdout] 145 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/oop.rs:157:27 [INFO] [stdout] | [INFO] [stdout] 157 | fn content<'a>(&self, post: &'a Post) -> &'a str { "" } [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-book` (lib) due to 1 previous error; 21 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `order1` [INFO] [stdout] --> src/lib.rs:109:9 [INFO] [stdout] | [INFO] [stdout] 109 | let order1 = back_of_house::Appetizer::Soup; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_order1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `order2` [INFO] [stdout] --> src/lib.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | let order2 = back_of_house::Appetizer::Salad; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_order2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:182:16 [INFO] [stdout] | [INFO] [stdout] 182 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:182:34 [INFO] [stdout] | [INFO] [stdout] 182 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `deliver_order` is never used [INFO] [stdout] --> src/lib.rs:148:4 [INFO] [stdout] | [INFO] [stdout] 148 | fn deliver_order() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `function1` is never used [INFO] [stdout] --> src/lib.rs:153:4 [INFO] [stdout] | [INFO] [stdout] 153 | fn function1() -> fmt::Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `function2` is never used [INFO] [stdout] --> src/lib.rs:157:4 [INFO] [stdout] | [INFO] [stdout] 157 | fn function2() -> IoResult<()> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> src/front_of_house/hosting.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> src/front_of_house/serving.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> src/front_of_house/serving.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> src/front_of_house/serving.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `AveragedCollection` is never constructed [INFO] [stdout] --> src/oop.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 64 | pub struct AveragedCollection { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `seasonal_fruit` is never read [INFO] [stdout] --> src/lib.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 114 | pub struct Breakfast { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 115 | pub toast: String, [INFO] [stdout] 116 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fix_incorrect_order` is never used [INFO] [stdout] --> src/lib.rs:140:8 [INFO] [stdout] | [INFO] [stdout] 140 | fn fix_incorrect_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cook_order` is never used [INFO] [stdout] --> src/lib.rs:145:8 [INFO] [stdout] | [INFO] [stdout] 145 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-book` (lib test) due to 1 previous error; 17 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a7d209f4d4dd4d1d3521db1301b947c4dd87f8e8558527113b8d7b6a993cab45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7d209f4d4dd4d1d3521db1301b947c4dd87f8e8558527113b8d7b6a993cab45", kill_on_drop: false }` [INFO] [stdout] a7d209f4d4dd4d1d3521db1301b947c4dd87f8e8558527113b8d7b6a993cab45