[INFO] cloning repository https://github.com/tyrellcurry/rustbook [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyrellcurry/rustbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyrellcurry%2Frustbook", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyrellcurry%2Frustbook'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2d88b801be30142c86a780629de6a7f45ce109da [INFO] testing tyrellcurry/rustbook against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyrellcurry%2Frustbook" "/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/tyrellcurry/rustbook [INFO] finished tweaking git repo https://github.com/tyrellcurry/rustbook [INFO] tweaked toml for git repo https://github.com/tyrellcurry/rustbook written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/tyrellcurry/rustbook on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/tyrellcurry/rustbook 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5742e103aa5ed7d260a702d662a9c256ef5eb905451a5e19764d72add865f37e [INFO] running `Command { std: "docker" "start" "-a" "5742e103aa5ed7d260a702d662a9c256ef5eb905451a5e19764d72add865f37e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5742e103aa5ed7d260a702d662a9c256ef5eb905451a5e19764d72add865f37e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5742e103aa5ed7d260a702d662a9c256ef5eb905451a5e19764d72add865f37e", kill_on_drop: false }` [INFO] [stdout] 5742e103aa5ed7d260a702d662a9c256ef5eb905451a5e19764d72add865f37e [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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 42f7a7777d5a3d607cd33ac452a8d37cec0fb86c7fdf7a88c4a73d45bf96a6d2 [INFO] running `Command { std: "docker" "start" "-a" "42f7a7777d5a3d607cd33ac452a8d37cec0fb86c7fdf7a88c4a73d45bf96a6d2", kill_on_drop: false }` [INFO] [stderr] Compiling getrandom v0.3.3 [INFO] [stderr] Compiling rand_core v0.9.3 [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling rand v0.9.2 [INFO] [stderr] Compiling rust_book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0532]: expected unit struct, unit variant or constant, found tuple variant `Coin::Quarter` [INFO] [stdout] --> src/chapters/enums_and_pattern_matching/control_flow.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 12 | Quarter(UsState), [INFO] [stdout] | ---------------- `Coin::Quarter` defined here [INFO] [stdout] ... [INFO] [stdout] 26 | Coin::Quarter => 25, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use the tuple variant pattern syntax instead: `Coin::Quarter(_)` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::array` [INFO] [stdout] --> src/chapters/common_programming_concepts/control_flow.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::array; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng` [INFO] [stdout] --> src/chapters/guessing_game/guessing_game.rs:9:31 [INFO] [stdout] | [INFO] [stdout] 9 | let secret_number = rand::thread_rng().gen_range(1..=100); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/chapters/common_programming_concepts/control_flow.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 21 | return; [INFO] [stdout] | ------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 29 | let condition = true; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range` [INFO] [stdout] --> src/chapters/guessing_game/guessing_game.rs:9:44 [INFO] [stdout] | [INFO] [stdout] 9 | let secret_number = rand::thread_rng().gen_range(1..=100); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `guess` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let guess: u32 = "42".parse().expect("Not a number!"); // 42 (type u32) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signedInt` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let signedInt: i32 = -69; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signedInt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsignedInt` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let unsignedInt: u32 = 69; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsignedInt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let x = 2.0; // default type is f64 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let x: f32 = 3.0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `product` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let product = 4 * 30; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_product` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let t = true; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let f: bool = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let c = 'c'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let z: char = 'z'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tup` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let tup: (i32, f64, u8) = (500, 6.4, 1); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_tup` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tup` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let tup = (500, 6.4, 1); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_tup` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let c = tup.0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `string` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let string = tup.1; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let num = tup.2; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arr` [INFO] [stdout] --> src/chapters/common_programming_concepts/data_types.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let arr = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_arr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/chapters/common_programming_concepts/functions.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let str = defined_below_func(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/chapters/common_programming_concepts/functions.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let y = "y"; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/chapters/common_programming_concepts/functions.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let y = [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `spaces` [INFO] [stdout] --> src/chapters/common_programming_concepts/variables_and_mutability.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | let spaces = spaces.len(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `spaces` [INFO] [stdout] --> src/chapters/common_programming_concepts/variables_and_mutability.rs:42:17 [INFO] [stdout] | [INFO] [stdout] 42 | let mut spaces = " "; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spaces` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/chapters/common_programming_concepts/variables_and_mutability.rs:42:13 [INFO] [stdout] | [INFO] [stdout] 42 | let mut spaces = " "; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0532`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_book` (bin "rust_book") due to 1 previous error; 26 warnings emitted [INFO] running `Command { std: "docker" "inspect" "42f7a7777d5a3d607cd33ac452a8d37cec0fb86c7fdf7a88c4a73d45bf96a6d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42f7a7777d5a3d607cd33ac452a8d37cec0fb86c7fdf7a88c4a73d45bf96a6d2", kill_on_drop: false }` [INFO] [stdout] 42f7a7777d5a3d607cd33ac452a8d37cec0fb86c7fdf7a88c4a73d45bf96a6d2