[INFO] cloning repository https://github.com/Av1nag/The-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Av1nag/The-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAv1nag%2FThe-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAv1nag%2FThe-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d84e11b5c3182234bfec35b60aca139f38e9e6f1 [INFO] building Av1nag/The-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%2FAv1nag%2FThe-Rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Av1nag/The-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/Av1nag/The-Rust [INFO] finished tweaking git repo https://github.com/Av1nag/The-Rust [INFO] tweaked toml for git repo https://github.com/Av1nag/The-Rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Av1nag/The-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] [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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 05414b537b58b076a7e9b7f16649689124d20afc90ba25403099bb6c53c146a7 [INFO] running `Command { std: "docker" "start" "-a" "05414b537b58b076a7e9b7f16649689124d20afc90ba25403099bb6c53c146a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "05414b537b58b076a7e9b7f16649689124d20afc90ba25403099bb6c53c146a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "05414b537b58b076a7e9b7f16649689124d20afc90ba25403099bb6c53c146a7", kill_on_drop: false }` [INFO] [stdout] 05414b537b58b076a7e9b7f16649689124d20afc90ba25403099bb6c53c146a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f4cea70c27313d72c60b1ae0a4b40d9dd6252253b1bcde3eed9183aaacdf0cb9 [INFO] running `Command { std: "docker" "start" "-a" "f4cea70c27313d72c60b1ae0a4b40d9dd6252253b1bcde3eed9183aaacdf0cb9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Compiling getrandom v0.2.11 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling first_rocket_project v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `signed_integer_of_8bit` [INFO] [stdout] --> src/data_types.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let signed_integer_of_8bit: i8 = -10; //here the output will be -10 [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_8bit` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_8bit` [INFO] [stdout] --> src/data_types.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let unsigned_integer_of_8bit: u8 = 20; //if we try to sigining this variable it gives complie time error [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_8bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_16bit` [INFO] [stdout] --> src/data_types.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let signed_integer_of_16bit: i16 = 100; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_16bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_16bit` [INFO] [stdout] --> src/data_types.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let unsigned_integer_of_16bit: u16 = 120; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_16bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_32bit` [INFO] [stdout] --> src/data_types.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let signed_integer_of_32bit: i32 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_32bit` [INFO] [stdout] --> src/data_types.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let unsigned_integer_of_32bit: u32 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_64bit` [INFO] [stdout] --> src/data_types.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let signed_integer_of_64bit: i64 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_64bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_64bit` [INFO] [stdout] --> src/data_types.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let unsigned_integer_of_64bit: u64 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_64bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_128bit` [INFO] [stdout] --> src/data_types.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let signed_integer_of_128bit: i128 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_128bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_32bit` [INFO] [stdout] --> src/data_types.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let unsigned_integer_of_32bit: u128 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_size_computer_architecture` [INFO] [stdout] --> src/data_types.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let signed_integer_of_size_computer_architecture: isize = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_size_computer_architecture` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_size_computer_architecture` [INFO] [stdout] --> src/data_types.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let unsigned_integer_of_size_computer_architecture: usize = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_size_computer_architecture` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `float_variable_of_32bit` [INFO] [stdout] --> src/data_types.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let float_variable_of_32bit: f32 = 20.1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_float_variable_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `float_variable_of_64bit` [INFO] [stdout] --> src/data_types.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 58 | let float_variable_of_64bit: f64 = 20.5; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_float_variable_of_64bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `summing_variable` [INFO] [stdout] --> src/data_types.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let summing_variable = 5 + 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_summing_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subtraction_varable` [INFO] [stdout] --> src/data_types.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | let subtraction_varable = 2 - 1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subtraction_varable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `multiplication_variable` [INFO] [stdout] --> src/data_types.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let multiplication_variable = 3 * 2; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multiplication_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `division_variable` [INFO] [stdout] --> src/data_types.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let division_variable = 10 / 2; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `remainder_variable` [INFO] [stdout] --> src/data_types.rs:84:9 [INFO] [stdout] | [INFO] [stdout] 84 | let remainder_variable = 10 % 5; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/data_types.rs:89:9 [INFO] [stdout] | [INFO] [stdout] 89 | 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/data_types.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | let f: bool = false; // with explicit type annotation.... [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/data_types.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | let c = 'z'; [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/data_types.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | let z: char = 'ℤ'; // with explicit type annotation [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `heart_eyed_cat` [INFO] [stdout] --> src/data_types.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let heart_eyed_cat = '😻'; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `twenty_point_three` [INFO] [stdout] --> src/data_types.rs:108:9 [INFO] [stdout] | [INFO] [stdout] 108 | let twenty_point_three = tuple.0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_twenty_point_three` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sixteen_point_five` [INFO] [stdout] --> src/data_types.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | let sixteen_point_five = tuple.1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sixteen_point_five` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `greeting` [INFO] [stdout] --> src/data_types.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let greeting = tuple_with_type_annotation.1; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/data_types.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | let b: [i32; 5] = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `months` [INFO] [stdout] --> src/data_types.rs:117:9 [INFO] [stdout] | [INFO] [stdout] 117 | let months = [ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_months` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/data_types.rs:131:9 [INFO] [stdout] | [INFO] [stdout] 131 | let first = a[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/data_types.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | let second = a[1]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `immutable_variable` [INFO] [stdout] --> src/variables.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let immutable_variable = 54; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_immutable_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r3` [INFO] [stdout] --> src/ownership.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let r3 = &mut s; // no problem [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_r3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `A_CONSTANT_VARIABLE` is never used [INFO] [stdout] --> src/variables.rs:41:11 [INFO] [stdout] | [INFO] [stdout] 41 | const A_CONSTANT_VARIABLE :i32 = 60*30; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `funtion_with_return_type` is never used [INFO] [stdout] --> src/functions.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn funtion_with_return_type() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.78s [INFO] running `Command { std: "docker" "inspect" "f4cea70c27313d72c60b1ae0a4b40d9dd6252253b1bcde3eed9183aaacdf0cb9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4cea70c27313d72c60b1ae0a4b40d9dd6252253b1bcde3eed9183aaacdf0cb9", kill_on_drop: false }` [INFO] [stdout] f4cea70c27313d72c60b1ae0a4b40d9dd6252253b1bcde3eed9183aaacdf0cb9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d0a827fec3fe866cec26869646cf1434f3ec8919e506892338f5058c4ea9af49 [INFO] running `Command { std: "docker" "start" "-a" "d0a827fec3fe866cec26869646cf1434f3ec8919e506892338f5058c4ea9af49", kill_on_drop: false }` [INFO] [stderr] Compiling first_rocket_project v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `signed_integer_of_8bit` [INFO] [stdout] --> src/data_types.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let signed_integer_of_8bit: i8 = -10; //here the output will be -10 [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_8bit` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_8bit` [INFO] [stdout] --> src/data_types.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let unsigned_integer_of_8bit: u8 = 20; //if we try to sigining this variable it gives complie time error [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_8bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_16bit` [INFO] [stdout] --> src/data_types.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let signed_integer_of_16bit: i16 = 100; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_16bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_16bit` [INFO] [stdout] --> src/data_types.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let unsigned_integer_of_16bit: u16 = 120; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_16bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_32bit` [INFO] [stdout] --> src/data_types.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let signed_integer_of_32bit: i32 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_32bit` [INFO] [stdout] --> src/data_types.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let unsigned_integer_of_32bit: u32 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_64bit` [INFO] [stdout] --> src/data_types.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let signed_integer_of_64bit: i64 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_64bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_64bit` [INFO] [stdout] --> src/data_types.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let unsigned_integer_of_64bit: u64 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_64bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_128bit` [INFO] [stdout] --> src/data_types.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let signed_integer_of_128bit: i128 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_128bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_32bit` [INFO] [stdout] --> src/data_types.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let unsigned_integer_of_32bit: u128 = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signed_integer_of_size_computer_architecture` [INFO] [stdout] --> src/data_types.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let signed_integer_of_size_computer_architecture: isize = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_integer_of_size_computer_architecture` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unsigned_integer_of_size_computer_architecture` [INFO] [stdout] --> src/data_types.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let unsigned_integer_of_size_computer_architecture: usize = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_integer_of_size_computer_architecture` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `float_variable_of_32bit` [INFO] [stdout] --> src/data_types.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let float_variable_of_32bit: f32 = 20.1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_float_variable_of_32bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `float_variable_of_64bit` [INFO] [stdout] --> src/data_types.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 58 | let float_variable_of_64bit: f64 = 20.5; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_float_variable_of_64bit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `summing_variable` [INFO] [stdout] --> src/data_types.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let summing_variable = 5 + 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_summing_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subtraction_varable` [INFO] [stdout] --> src/data_types.rs:75:9 [INFO] [stdout] | [INFO] [stdout] 75 | let subtraction_varable = 2 - 1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subtraction_varable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `multiplication_variable` [INFO] [stdout] --> src/data_types.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let multiplication_variable = 3 * 2; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multiplication_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `division_variable` [INFO] [stdout] --> src/data_types.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let division_variable = 10 / 2; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_division_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `remainder_variable` [INFO] [stdout] --> src/data_types.rs:84:9 [INFO] [stdout] | [INFO] [stdout] 84 | let remainder_variable = 10 % 5; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/data_types.rs:89:9 [INFO] [stdout] | [INFO] [stdout] 89 | 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/data_types.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | let f: bool = false; // with explicit type annotation.... [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/data_types.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | let c = 'z'; [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/data_types.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | let z: char = 'ℤ'; // with explicit type annotation [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `heart_eyed_cat` [INFO] [stdout] --> src/data_types.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let heart_eyed_cat = '😻'; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `twenty_point_three` [INFO] [stdout] --> src/data_types.rs:108:9 [INFO] [stdout] | [INFO] [stdout] 108 | let twenty_point_three = tuple.0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_twenty_point_three` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sixteen_point_five` [INFO] [stdout] --> src/data_types.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | let sixteen_point_five = tuple.1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sixteen_point_five` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `greeting` [INFO] [stdout] --> src/data_types.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let greeting = tuple_with_type_annotation.1; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/data_types.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | let b: [i32; 5] = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `months` [INFO] [stdout] --> src/data_types.rs:117:9 [INFO] [stdout] | [INFO] [stdout] 117 | let months = [ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_months` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/data_types.rs:131:9 [INFO] [stdout] | [INFO] [stdout] 131 | let first = a[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/data_types.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | let second = a[1]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `immutable_variable` [INFO] [stdout] --> src/variables.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let immutable_variable = 54; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_immutable_variable` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r3` [INFO] [stdout] --> src/ownership.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let r3 = &mut s; // no problem [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_r3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `A_CONSTANT_VARIABLE` is never used [INFO] [stdout] --> src/variables.rs:41:11 [INFO] [stdout] | [INFO] [stdout] 41 | const A_CONSTANT_VARIABLE :i32 = 60*30; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `funtion_with_return_type` is never used [INFO] [stdout] --> src/functions.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn funtion_with_return_type() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "d0a827fec3fe866cec26869646cf1434f3ec8919e506892338f5058c4ea9af49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0a827fec3fe866cec26869646cf1434f3ec8919e506892338f5058c4ea9af49", kill_on_drop: false }` [INFO] [stdout] d0a827fec3fe866cec26869646cf1434f3ec8919e506892338f5058c4ea9af49