[INFO] cloning repository https://github.com/learner-nayan/rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/learner-nayan/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearner-nayan%2Frust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearner-nayan%2Frust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e33873ffae09826dafb396419e9c2cfce16e32ac [INFO] building learner-nayan/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%2Flearner-nayan%2Frust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/learner-nayan/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/learner-nayan/rust [INFO] finished tweaking git repo https://github.com/learner-nayan/rust [INFO] tweaked toml for git repo https://github.com/learner-nayan/rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/learner-nayan/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f7dd23505ba339c6aa253da191e1c8e653e0f08260975d822178050c341b7231 [INFO] running `Command { std: "docker" "start" "-a" "f7dd23505ba339c6aa253da191e1c8e653e0f08260975d822178050c341b7231", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f7dd23505ba339c6aa253da191e1c8e653e0f08260975d822178050c341b7231", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f7dd23505ba339c6aa253da191e1c8e653e0f08260975d822178050c341b7231", kill_on_drop: false }` [INFO] [stdout] f7dd23505ba339c6aa253da191e1c8e653e0f08260975d822178050c341b7231 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9d19dbb212e83692410f8fa2bd35622dbcaf14405d5f98c40044e84761ca000d [INFO] running `Command { std: "docker" "start" "-a" "9d19dbb212e83692410f8fa2bd35622dbcaf14405d5f98c40044e84761ca000d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling colored v2.1.0 [INFO] [stderr] Compiling getrandom v0.2.15 [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 new v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::result` [INFO] [stdout] --> src/basics.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::result; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc::SyncSender` [INFO] [stdout] --> src/structure.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::sync::mpsc::SyncSender; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::enums::UsState::Alaska` [INFO] [stdout] --> src/enums.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::enums::UsState::Alaska; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `v4` should have an upper camel case name [INFO] [stdout] --> src/enums.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | v4(u8,u8,u8,u8), [INFO] [stdout] | ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `v6` should have an upper camel case name [INFO] [stdout] --> src/enums.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | v6(String) [INFO] [stdout] | ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/basics.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let a = 56_444; [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: `b` [INFO] [stdout] --> src/basics.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let b = 0xff; //hex [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/basics.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let c = 0o77; //octal [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> src/basics.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let d = 0b1111_0000; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/basics.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let e = b'A'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/basics.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let f = 5.6; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/basics.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let g = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/basics.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let h = 'a'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/basics.rs:35:10 [INFO] [stdout] | [INFO] [stdout] 35 | let (name, percentage) = tup; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `percentage` [INFO] [stdout] --> src/basics.rs:35:16 [INFO] [stdout] | [INFO] [stdout] 35 | let (name, percentage) = tup; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_percentage` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user` [INFO] [stdout] --> src/basics.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let user = tup.1; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_user` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> src/ownership.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let s2 = s1.clone(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref1` [INFO] [stdout] --> src/ownership.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let ref1 = &str2; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ref1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref2` [INFO] [stdout] --> src/ownership.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let ref2 = &str2; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ref2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref3` [INFO] [stdout] --> src/ownership.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let ref3 = &mut str2; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ref3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user3` [INFO] [stdout] --> src/structure.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let user3 = User{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rect3` [INFO] [stdout] --> src/structure_methods.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let rect3 = Rectangle::square(5); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_rect3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `localhost` [INFO] [stdout] --> src/enums.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let localhost = IpAddrType::v4(127,0,0,1); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_localhost` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/enums.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let x = Some(5); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/enums.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let y = Some("Hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/enums.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let z: Option = None; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mutable` is never used [INFO] [stdout] --> src/mutable.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn mutable(){ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_length` is never used [INFO] [stdout] --> src/mutable.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn calculate_length(s:&String) -> usize{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `loops` is never used [INFO] [stdout] --> src/loops.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn loops(){ [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `number_guess` is never used [INFO] [stdout] --> src/number_guess.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn number_guess(){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `basics` is never used [INFO] [stdout] --> src/basics.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn basics(){ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add` is never used [INFO] [stdout] --> src/basics.rs:58:4 [INFO] [stdout] | [INFO] [stdout] 58 | fn add(a:i32, b:i32) ->i32{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ownership` is never used [INFO] [stdout] --> src/ownership.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn ownership(){ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `User` is never constructed [INFO] [stdout] --> src/structure.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct User{ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `structure` is never used [INFO] [stdout] --> src/structure.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn structure(){ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_user` is never used [INFO] [stdout] --> src/structure.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn create_user(username:String, email:String, active:bool, sign_in_count:u64) ->User{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/structure_methods.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Rectangle{ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `area` and `holds_on` are never used [INFO] [stdout] --> src/structure_methods.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl Rectangle { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] 7 | fn area(&self) -> u32{ [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 11 | fn holds_on(&self, rectangle:&Rectangle) -> bool{ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `square` is never used [INFO] [stdout] --> src/structure_methods.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Rectangle{ [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 18 | fn square(size:u32) -> Rectangle{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `structure_methods` is never used [INFO] [stdout] --> src/structure_methods.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn structure_methods(){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/enums.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | 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] 4 | v4((),(),(),()), [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `v6` is never constructed [INFO] [stdout] --> src/enums.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum IpAddrType{ [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 4 | v4(u8,u8,u8,u8), [INFO] [stdout] 5 | v6(String) [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> src/enums.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | enum Message{ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `QuitMessage` is never constructed [INFO] [stdout] --> src/enums.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct QuitMessage; //unit struct [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MoveMessage` is never constructed [INFO] [stdout] --> src/enums.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct MoveMessage{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Albana`, `Arizona`, `Arkansas`, and `California` are never constructed [INFO] [stdout] --> src/enums.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 28 | enum UsState{ [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 29 | Albana, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 30 | Alaska, [INFO] [stdout] 31 | Arizona, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 32 | Arkansas, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 33 | California, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed [INFO] [stdout] --> src/enums.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 36 | enum Coin{ [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 37 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 38 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 39 | Dime, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.96s [INFO] running `Command { std: "docker" "inspect" "9d19dbb212e83692410f8fa2bd35622dbcaf14405d5f98c40044e84761ca000d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d19dbb212e83692410f8fa2bd35622dbcaf14405d5f98c40044e84761ca000d", kill_on_drop: false }` [INFO] [stdout] 9d19dbb212e83692410f8fa2bd35622dbcaf14405d5f98c40044e84761ca000d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 48956de66fabd74448db2da2c1bb3026e6f7b844e0297205e4724ca75b9a13dc [INFO] running `Command { std: "docker" "start" "-a" "48956de66fabd74448db2da2c1bb3026e6f7b844e0297205e4724ca75b9a13dc", kill_on_drop: false }` [INFO] [stderr] Compiling new v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::result` [INFO] [stdout] --> src/basics.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::result; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc::SyncSender` [INFO] [stdout] --> src/structure.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::sync::mpsc::SyncSender; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::enums::UsState::Alaska` [INFO] [stdout] --> src/enums.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::enums::UsState::Alaska; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `v4` should have an upper camel case name [INFO] [stdout] --> src/enums.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | v4(u8,u8,u8,u8), [INFO] [stdout] | ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `v6` should have an upper camel case name [INFO] [stdout] --> src/enums.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | v6(String) [INFO] [stdout] | ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/basics.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let a = 56_444; [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: `b` [INFO] [stdout] --> src/basics.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let b = 0xff; //hex [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/basics.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let c = 0o77; //octal [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> src/basics.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let d = 0b1111_0000; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/basics.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let e = b'A'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/basics.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let f = 5.6; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/basics.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let g = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/basics.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let h = 'a'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/basics.rs:35:10 [INFO] [stdout] | [INFO] [stdout] 35 | let (name, percentage) = tup; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `percentage` [INFO] [stdout] --> src/basics.rs:35:16 [INFO] [stdout] | [INFO] [stdout] 35 | let (name, percentage) = tup; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_percentage` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user` [INFO] [stdout] --> src/basics.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let user = tup.1; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_user` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> src/ownership.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let s2 = s1.clone(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref1` [INFO] [stdout] --> src/ownership.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let ref1 = &str2; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ref1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref2` [INFO] [stdout] --> src/ownership.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let ref2 = &str2; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ref2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref3` [INFO] [stdout] --> src/ownership.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let ref3 = &mut str2; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ref3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user3` [INFO] [stdout] --> src/structure.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let user3 = User{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rect3` [INFO] [stdout] --> src/structure_methods.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let rect3 = Rectangle::square(5); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_rect3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `localhost` [INFO] [stdout] --> src/enums.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let localhost = IpAddrType::v4(127,0,0,1); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_localhost` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/enums.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let x = Some(5); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/enums.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let y = Some("Hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/enums.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let z: Option = None; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mutable` is never used [INFO] [stdout] --> src/mutable.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn mutable(){ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_length` is never used [INFO] [stdout] --> src/mutable.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn calculate_length(s:&String) -> usize{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `loops` is never used [INFO] [stdout] --> src/loops.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn loops(){ [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `number_guess` is never used [INFO] [stdout] --> src/number_guess.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn number_guess(){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `basics` is never used [INFO] [stdout] --> src/basics.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn basics(){ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add` is never used [INFO] [stdout] --> src/basics.rs:58:4 [INFO] [stdout] | [INFO] [stdout] 58 | fn add(a:i32, b:i32) ->i32{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ownership` is never used [INFO] [stdout] --> src/ownership.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn ownership(){ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `User` is never constructed [INFO] [stdout] --> src/structure.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct User{ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `structure` is never used [INFO] [stdout] --> src/structure.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn structure(){ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_user` is never used [INFO] [stdout] --> src/structure.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn create_user(username:String, email:String, active:bool, sign_in_count:u64) ->User{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/structure_methods.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Rectangle{ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `area` and `holds_on` are never used [INFO] [stdout] --> src/structure_methods.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl Rectangle { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] 7 | fn area(&self) -> u32{ [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 11 | fn holds_on(&self, rectangle:&Rectangle) -> bool{ [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `square` is never used [INFO] [stdout] --> src/structure_methods.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Rectangle{ [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 18 | fn square(size:u32) -> Rectangle{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `structure_methods` is never used [INFO] [stdout] --> src/structure_methods.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn structure_methods(){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/enums.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | 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] 4 | v4((),(),(),()), [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `v6` is never constructed [INFO] [stdout] --> src/enums.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum IpAddrType{ [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 4 | v4(u8,u8,u8,u8), [INFO] [stdout] 5 | v6(String) [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> src/enums.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | enum Message{ [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `QuitMessage` is never constructed [INFO] [stdout] --> src/enums.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct QuitMessage; //unit struct [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MoveMessage` is never constructed [INFO] [stdout] --> src/enums.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct MoveMessage{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Albana`, `Arizona`, `Arkansas`, and `California` are never constructed [INFO] [stdout] --> src/enums.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 28 | enum UsState{ [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 29 | Albana, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 30 | Alaska, [INFO] [stdout] 31 | Arizona, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 32 | Arkansas, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 33 | California, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Dime` are never constructed [INFO] [stdout] --> src/enums.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 36 | enum Coin{ [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 37 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 38 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 39 | Dime, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s [INFO] running `Command { std: "docker" "inspect" "48956de66fabd74448db2da2c1bb3026e6f7b844e0297205e4724ca75b9a13dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48956de66fabd74448db2da2c1bb3026e6f7b844e0297205e4724ca75b9a13dc", kill_on_drop: false }` [INFO] [stdout] 48956de66fabd74448db2da2c1bb3026e6f7b844e0297205e4724ca75b9a13dc