[INFO] cloning repository https://github.com/sethwbarton/rust-cheatsheet [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sethwbarton/rust-cheatsheet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsethwbarton%2Frust-cheatsheet", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsethwbarton%2Frust-cheatsheet'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4dfad9ade79f99530c7ad0ff46b523e995918ef7 [INFO] checking sethwbarton/rust-cheatsheet against master#d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 for pr-137268 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsethwbarton%2Frust-cheatsheet" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sethwbarton/rust-cheatsheet on toolchain d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sethwbarton/rust-cheatsheet [INFO] finished tweaking git repo https://github.com/sethwbarton/rust-cheatsheet [INFO] tweaked toml for git repo https://github.com/sethwbarton/rust-cheatsheet written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sethwbarton/rust-cheatsheet 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" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd6af321cf39524fd7ed9006e3f993c90656dd6d3ccb3962127f705dfe9b5dcf [INFO] running `Command { std: "docker" "start" "-a" "cd6af321cf39524fd7ed9006e3f993c90656dd6d3ccb3962127f705dfe9b5dcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd6af321cf39524fd7ed9006e3f993c90656dd6d3ccb3962127f705dfe9b5dcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd6af321cf39524fd7ed9006e3f993c90656dd6d3ccb3962127f705dfe9b5dcf", kill_on_drop: false }` [INFO] [stdout] cd6af321cf39524fd7ed9006e3f993c90656dd6d3ccb3962127f705dfe9b5dcf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3779485d2029d2e9960e953f3577e054bcdc4db3e6b089adc1188ad4cf778049 [INFO] running `Command { std: "docker" "start" "-a" "3779485d2029d2e9960e953f3577e054bcdc4db3e6b089adc1188ad4cf778049", kill_on_drop: false }` [INFO] [stderr] Checking rust-cheatsheet v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/reading_files.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | Ok(size) => {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/reading_files.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 16 | Err(e) => println!("Ate an error from writing to the file."), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SomePrivateType` is never constructed [INFO] [stdout] --> src/some_module/some_sub_module.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | struct SomePrivateType {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `inputSize` should have a snake case name [INFO] [stdout] --> src/reading_files.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | Ok(inputSize) => { [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `input_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/reading_files.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | Ok(size) => {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/reading_files.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 16 | Err(e) => println!("Ate an error from writing to the file."), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SomePrivateType` is never constructed [INFO] [stdout] --> src/some_module/some_sub_module.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | struct SomePrivateType {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `inputSize` should have a snake case name [INFO] [stdout] --> src/reading_files.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | Ok(inputSize) => { [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `input_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a_struct` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let a_struct = SomeType {}; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_struct` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `walt_disney_age` [INFO] [stdout] --> src/main.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let walt_disney_age: i128 = 122; // Rust convention is to use snake_case. [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_walt_disney_age` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `is_older_than_walt` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let is_older_than_walt: bool = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_older_than_walt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `disney_viewers_as_us_pop_percentage` [INFO] [stdout] --> src/main.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let disney_viewers_as_us_pop_percentage: f64 = 70.0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_disney_viewers_as_us_pop_percentage` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `area` [INFO] [stdout] --> src/main.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let area = my_rectangle.area(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_area` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `aSquare` [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut aSquare = Rectangle::square(15); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_aSquare` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `myIpKind` [INFO] [stdout] --> src/main.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let myIpKind = IpAddrKind::V4; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_myIpKind` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut aSquare = Rectangle::square(15); [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] warning: variant `V6` is never constructed [INFO] [stdout] --> src/main.rs:167:5 [INFO] [stdout] | [INFO] [stdout] 165 | enum IpAddrKind { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 166 | V4, [INFO] [stdout] 167 | V6, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Coin` is never used [INFO] [stdout] --> src/main.rs:170:6 [INFO] [stdout] | [INFO] [stdout] 170 | enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `value_in_cents` is never used [INFO] [stdout] --> src/main.rs:177:4 [INFO] [stdout] | [INFO] [stdout] 177 | fn value_in_cents(coin: Coin) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `aSquare` should have a snake case name [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut aSquare = Rectangle::square(15); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `a_square` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `myIpKind` should have a snake case name [INFO] [stdout] --> src/main.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let myIpKind = IpAddrKind::V4; [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `my_ip_kind` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a_struct` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let a_struct = SomeType {}; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_struct` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `walt_disney_age` [INFO] [stdout] --> src/main.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let walt_disney_age: i128 = 122; // Rust convention is to use snake_case. [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_walt_disney_age` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `is_older_than_walt` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let is_older_than_walt: bool = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_older_than_walt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `disney_viewers_as_us_pop_percentage` [INFO] [stdout] --> src/main.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let disney_viewers_as_us_pop_percentage: f64 = 70.0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_disney_viewers_as_us_pop_percentage` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `area` [INFO] [stdout] --> src/main.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let area = my_rectangle.area(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_area` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `aSquare` [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut aSquare = Rectangle::square(15); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_aSquare` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `myIpKind` [INFO] [stdout] --> src/main.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let myIpKind = IpAddrKind::V4; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_myIpKind` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut aSquare = Rectangle::square(15); [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] warning: variant `V6` is never constructed [INFO] [stdout] --> src/main.rs:167:5 [INFO] [stdout] | [INFO] [stdout] 165 | enum IpAddrKind { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 166 | V4, [INFO] [stdout] 167 | V6, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Coin` is never used [INFO] [stdout] --> src/main.rs:170:6 [INFO] [stdout] | [INFO] [stdout] 170 | enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `value_in_cents` is never used [INFO] [stdout] --> src/main.rs:177:4 [INFO] [stdout] | [INFO] [stdout] 177 | fn value_in_cents(coin: Coin) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `aSquare` should have a snake case name [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut aSquare = Rectangle::square(15); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `a_square` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `myIpKind` should have a snake case name [INFO] [stdout] --> src/main.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let myIpKind = IpAddrKind::V4; [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `my_ip_kind` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `Command { std: "docker" "inspect" "3779485d2029d2e9960e953f3577e054bcdc4db3e6b089adc1188ad4cf778049", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3779485d2029d2e9960e953f3577e054bcdc4db3e6b089adc1188ad4cf778049", kill_on_drop: false }` [INFO] [stdout] 3779485d2029d2e9960e953f3577e054bcdc4db3e6b089adc1188ad4cf778049