[INFO] cloning repository https://github.com/yaswanth-vakkala/Rust_Programming [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yaswanth-vakkala/Rust_Programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaswanth-vakkala%2FRust_Programming", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaswanth-vakkala%2FRust_Programming'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9de8908f44a75d390936f6e3f95262cb9c1f2a9 [INFO] building yaswanth-vakkala/Rust_Programming 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%2Fyaswanth-vakkala%2FRust_Programming" "/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/yaswanth-vakkala/Rust_Programming 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/yaswanth-vakkala/Rust_Programming [INFO] finished tweaking git repo https://github.com/yaswanth-vakkala/Rust_Programming [INFO] tweaked toml for git repo https://github.com/yaswanth-vakkala/Rust_Programming written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yaswanth-vakkala/Rust_Programming 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] 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] ea74081727666b7dead2f908d0e9af392726d77fbe4fad2ff8b1beafd65f1985 [INFO] running `Command { std: "docker" "start" "-a" "ea74081727666b7dead2f908d0e9af392726d77fbe4fad2ff8b1beafd65f1985", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ea74081727666b7dead2f908d0e9af392726d77fbe4fad2ff8b1beafd65f1985", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea74081727666b7dead2f908d0e9af392726d77fbe4fad2ff8b1beafd65f1985", kill_on_drop: false }` [INFO] [stdout] ea74081727666b7dead2f908d0e9af392726d77fbe4fad2ff8b1beafd65f1985 [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] 21f27cbc7308cfbcefbf1554560af96631ee408f9c9b24ead62b561272ba7480 [INFO] running `Command { std: "docker" "start" "-a" "21f27cbc7308cfbcefbf1554560af96631ee408f9c9b24ead62b561272ba7480", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling getrandom v0.2.12 [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 guesser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `string` [INFO] [stdout] --> src/main.rs:2:30 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{cmp::Ordering, io, string}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:82:18 [INFO] [stdout] | [INFO] [stdout] 82 | let result = 'countingup: loop { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let a = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `number` [INFO] [stdout] --> src/main.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let number = if true {5} else {6}; // if is expression [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | let y = x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> src/main.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let s2 = s1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reference_to_nothing` [INFO] [stdout] --> src/main.rs:136:9 [INFO] [stdout] | [INFO] [stdout] 136 | let reference_to_nothing = dangle(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference_to_nothing` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/main.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | let hello = &s[0..5]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `world` [INFO] [stdout] --> src/main.rs:141:9 [INFO] [stdout] | [INFO] [stdout] 141 | let world = &s[6..11]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_world` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `black` [INFO] [stdout] --> src/main.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | let black = Color(0,0,0); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_black` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subject` [INFO] [stdout] --> src/main.rs:182:9 [INFO] [stdout] | [INFO] [stdout] 182 | let subject = AlwaysEqual; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sq` [INFO] [stdout] --> src/main.rs:202:9 [INFO] [stdout] | [INFO] [stdout] 202 | let sq = Rectangle::square(3); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_sq` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/main.rs:212:9 [INFO] [stdout] | [INFO] [stdout] 212 | let home = IpAddr::V4(127, 0, 0, 1); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/main.rs:213:9 [INFO] [stdout] | [INFO] [stdout] 213 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_char` [INFO] [stdout] --> src/main.rs:233:9 [INFO] [stdout] | [INFO] [stdout] 233 | let some_char = Some('e'); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `absent_number` [INFO] [stdout] --> src/main.rs:234:9 [INFO] [stdout] | [INFO] [stdout] 234 | let absent_number: Option = None; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, and `sign_in_count` are never read [INFO] [stdout] --> src/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 150 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 151 | active : bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 152 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 153 | email: String, [INFO] [stdout] 154 | sign_in_count : u64 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/main.rs:178:18 [INFO] [stdout] | [INFO] [stdout] 178 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/main.rs:205:12 [INFO] [stdout] | [INFO] [stdout] 205 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 205 | V4((), (), (), ()), [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:206:12 [INFO] [stdout] | [INFO] [stdout] 206 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 206 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:217:15 [INFO] [stdout] | [INFO] [stdout] 217 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 217 | Write(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed [INFO] [stdout] --> src/main.rs:215:9 [INFO] [stdout] | [INFO] [stdout] 214 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 215 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 216 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 217 | Write(String), [INFO] [stdout] 218 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Coin` is never used [INFO] [stdout] --> src/main.rs:236:10 [INFO] [stdout] | [INFO] [stdout] 236 | enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `value_in_cents` is never used [INFO] [stdout] --> src/main.rs:242:8 [INFO] [stdout] | [INFO] [stdout] 242 | fn value_in_cents(coin: Coin) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `plus_one` is never used [INFO] [stdout] --> src/main.rs:253:8 [INFO] [stdout] | [INFO] [stdout] 253 | fn plus_one(x: Option) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> src/main.rs:367:8 [INFO] [stdout] | [INFO] [stdout] 360 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 367 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `access_array` is never used [INFO] [stdout] --> src/main.rs:403:4 [INFO] [stdout] | [INFO] [stdout] 403 | fn access_array(){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.13s [INFO] running `Command { std: "docker" "inspect" "21f27cbc7308cfbcefbf1554560af96631ee408f9c9b24ead62b561272ba7480", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21f27cbc7308cfbcefbf1554560af96631ee408f9c9b24ead62b561272ba7480", kill_on_drop: false }` [INFO] [stdout] 21f27cbc7308cfbcefbf1554560af96631ee408f9c9b24ead62b561272ba7480 [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] b5fc07907e57f743a5e382e60b3406d29b3c90e20824d461bc0bc48ced88a270 [INFO] running `Command { std: "docker" "start" "-a" "b5fc07907e57f743a5e382e60b3406d29b3c90e20824d461bc0bc48ced88a270", kill_on_drop: false }` [INFO] [stderr] Compiling guesser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `string` [INFO] [stdout] --> src/main.rs:2:30 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{cmp::Ordering, io, string}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:82:18 [INFO] [stdout] | [INFO] [stdout] 82 | let result = 'countingup: loop { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let a = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `number` [INFO] [stdout] --> src/main.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let number = if true {5} else {6}; // if is expression [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | let y = x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> src/main.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let s2 = s1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reference_to_nothing` [INFO] [stdout] --> src/main.rs:136:9 [INFO] [stdout] | [INFO] [stdout] 136 | let reference_to_nothing = dangle(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference_to_nothing` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/main.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | let hello = &s[0..5]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `world` [INFO] [stdout] --> src/main.rs:141:9 [INFO] [stdout] | [INFO] [stdout] 141 | let world = &s[6..11]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_world` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `black` [INFO] [stdout] --> src/main.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | let black = Color(0,0,0); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_black` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `subject` [INFO] [stdout] --> src/main.rs:182:9 [INFO] [stdout] | [INFO] [stdout] 182 | let subject = AlwaysEqual; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sq` [INFO] [stdout] --> src/main.rs:202:9 [INFO] [stdout] | [INFO] [stdout] 202 | let sq = Rectangle::square(3); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_sq` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/main.rs:212:9 [INFO] [stdout] | [INFO] [stdout] 212 | let home = IpAddr::V4(127, 0, 0, 1); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> src/main.rs:213:9 [INFO] [stdout] | [INFO] [stdout] 213 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_char` [INFO] [stdout] --> src/main.rs:233:9 [INFO] [stdout] | [INFO] [stdout] 233 | let some_char = Some('e'); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `absent_number` [INFO] [stdout] --> src/main.rs:234:9 [INFO] [stdout] | [INFO] [stdout] 234 | let absent_number: Option = None; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, and `sign_in_count` are never read [INFO] [stdout] --> src/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 150 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 151 | active : bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 152 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 153 | email: String, [INFO] [stdout] 154 | sign_in_count : u64 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/main.rs:178:18 [INFO] [stdout] | [INFO] [stdout] 178 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/main.rs:205:12 [INFO] [stdout] | [INFO] [stdout] 205 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 205 | V4((), (), (), ()), [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:206:12 [INFO] [stdout] | [INFO] [stdout] 206 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 206 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:217:15 [INFO] [stdout] | [INFO] [stdout] 217 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 217 | Write(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed [INFO] [stdout] --> src/main.rs:215:9 [INFO] [stdout] | [INFO] [stdout] 214 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 215 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 216 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 217 | Write(String), [INFO] [stdout] 218 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Coin` is never used [INFO] [stdout] --> src/main.rs:236:10 [INFO] [stdout] | [INFO] [stdout] 236 | enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `value_in_cents` is never used [INFO] [stdout] --> src/main.rs:242:8 [INFO] [stdout] | [INFO] [stdout] 242 | fn value_in_cents(coin: Coin) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `plus_one` is never used [INFO] [stdout] --> src/main.rs:253:8 [INFO] [stdout] | [INFO] [stdout] 253 | fn plus_one(x: Option) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> src/main.rs:367:8 [INFO] [stdout] | [INFO] [stdout] 360 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 367 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `access_array` is never used [INFO] [stdout] --> src/main.rs:403:4 [INFO] [stdout] | [INFO] [stdout] 403 | fn access_array(){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "b5fc07907e57f743a5e382e60b3406d29b3c90e20824d461bc0bc48ced88a270", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5fc07907e57f743a5e382e60b3406d29b3c90e20824d461bc0bc48ced88a270", kill_on_drop: false }` [INFO] [stdout] b5fc07907e57f743a5e382e60b3406d29b3c90e20824d461bc0bc48ced88a270