[INFO] cloning repository https://github.com/Abhishek8394/rust-tut-basics [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Abhishek8394/rust-tut-basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-basics"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-basics'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 62f62d3624994b41db874b52c2e0b11b72057d11 [INFO] testing Abhishek8394/rust-tut-basics against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-basics" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Abhishek8394/rust-tut-basics on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/Abhishek8394/rust-tut-basics [INFO] finished tweaking git repo https://github.com/Abhishek8394/rust-tut-basics [INFO] tweaked toml for git repo https://github.com/Abhishek8394/rust-tut-basics written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/Abhishek8394/rust-tut-basics already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d1b4505ecfd8047c4015f7b5efa3f44a8794869da1cbf67fc34eabccabf7d6b8 [INFO] running `"docker" "start" "-a" "d1b4505ecfd8047c4015f7b5efa3f44a8794869da1cbf67fc34eabccabf7d6b8"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::panic_exc::unrecoverable as Unrec` [INFO] [stderr] --> src/main.rs:550:7 [INFO] [stderr] | [INFO] [stderr] 550 | use crate::panic_exc::unrecoverable as Unrec; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:680:4 [INFO] [stderr] | [INFO] [stderr] 680 | if(x.len() > y.len()){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:692:4 [INFO] [stderr] | [INFO] [stderr] 692 | if(x.len() > y.len()){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:774:5 [INFO] [stderr] | [INFO] [stderr] 774 | if(self.is_reply){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary braces around `for` iterator expression [INFO] [stderr] --> src/main.rs:872:11 [INFO] [stderr] | [INFO] [stderr] 872 | for i in {0..n} { [INFO] [stderr] | ^^^^^^ help: remove these braces [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_braces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:51:6 [INFO] [stderr] | [INFO] [stderr] 51 | let b = [3; 4]; // => b = [3, 3, 3, 3] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sum` [INFO] [stderr] --> src/main.rs:52:6 [INFO] [stderr] | [INFO] [stderr] 52 | let sum = for element in a.iter(){ [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_sum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/main.rs:249:7 [INFO] [stderr] | [INFO] [stderr] 249 | let hello = hello_return(&s1); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> src/main.rs:259:7 [INFO] [stderr] | [INFO] [stderr] 259 | let s1 = String::from("range string"); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/main.rs:326:10 [INFO] [stderr] | [INFO] [stderr] 326 | let home = StrictIpAddr::V4(127, 0, 0, 1); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `homev6` [INFO] [stderr] --> src/main.rs:327:10 [INFO] [stderr] | [INFO] [stderr] 327 | let homev6 = StrictIpAddr::V6(String::from("::1")); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_homev6` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nonum` [INFO] [stderr] --> src/main.rs:348:7 [INFO] [stderr] | [INFO] [stderr] 348 | let nonum: Option = Option::None; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/main.rs:392:7 [INFO] [stderr] | [INFO] [stderr] 392 | let v: Vec = Vec::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:468:7 [INFO] [stderr] | [INFO] [stderr] 468 | let s = String::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:627:8 [INFO] [stderr] | [INFO] [stderr] 627 | let z = String::from("I am number FIVE!"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:872:6 [INFO] [stderr] | [INFO] [stderr] 872 | for i in {0..n} { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:971:17 [INFO] [stderr] | [INFO] [stderr] 971 | fn hello_return(s: &str) -> &str{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:22:13 [INFO] [stderr] | [INFO] [stderr] 22 | let f = match f{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | let f = File::open("hello.txt").unwrap_or_else(|err| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let f = File::open("hello.txt").unwrap_or_else(|err| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:247:7 [INFO] [stderr] | [INFO] [stderr] 247 | let mut s1 = String::from("quick brown"); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:526:7 [INFO] [stderr] | [INFO] [stderr] 526 | let mut scores: HashMap<_, _> = teams.iter().zip(points.iter()).collect(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `deliberate_panic` [INFO] [stderr] --> src/panic_exc.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn deliberate_panic(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `accident_panic` [INFO] [stderr] --> src/panic_exc.rs:7:12 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn accident_panic(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `version` [INFO] [stderr] --> src/main.rs:653:2 [INFO] [stderr] | [INFO] [stderr] 653 | fn version(&self)->i32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `announce_no_lifetime` [INFO] [stderr] --> src/main.rs:668:2 [INFO] [stderr] | [INFO] [stderr] 668 | fn announce_no_lifetime(&self, ann: &str) -> &str{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `content` [INFO] [stderr] --> src/main.rs:755:2 [INFO] [stderr] | [INFO] [stderr] 755 | content: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `username` [INFO] [stderr] --> src/main.rs:761:2 [INFO] [stderr] | [INFO] [stderr] 761 | username: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NewYork` [INFO] [stderr] --> src/main.rs:846:2 [INFO] [stderr] | [INFO] [stderr] 846 | NewYork, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/main.rs:851:2 [INFO] [stderr] | [INFO] [stderr] 851 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:852:2 [INFO] [stderr] | [INFO] [stderr] 852 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:853:2 [INFO] [stderr] | [INFO] [stderr] 853 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `formatted` [INFO] [stderr] --> src/main.rs:896:2 [INFO] [stderr] | [INFO] [stderr] 896 | fn formatted(&self){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `idPrint` should have a snake case name [INFO] [stderr] --> src/main.rs:930:5 [INFO] [stderr] | [INFO] [stderr] 930 | fn idPrint(&self){ [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `id_print` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `getMaxSigninAttempts` should have a snake case name [INFO] [stderr] --> src/main.rs:937:5 [INFO] [stderr] | [INFO] [stderr] 937 | fn getMaxSigninAttempts()->u32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_max_signin_attempts` [INFO] [stderr] [INFO] [stderr] warning: 36 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.02s [INFO] running `"docker" "inspect" "d1b4505ecfd8047c4015f7b5efa3f44a8794869da1cbf67fc34eabccabf7d6b8"` [INFO] running `"docker" "rm" "-f" "d1b4505ecfd8047c4015f7b5efa3f44a8794869da1cbf67fc34eabccabf7d6b8"` [INFO] [stdout] d1b4505ecfd8047c4015f7b5efa3f44a8794869da1cbf67fc34eabccabf7d6b8 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 851780be7751a020626045b50df48554714c3cefd04623e3ef61d68c52aba398 [INFO] running `"docker" "start" "-a" "851780be7751a020626045b50df48554714c3cefd04623e3ef61d68c52aba398"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::panic_exc::unrecoverable as Unrec` [INFO] [stderr] --> src/main.rs:550:7 [INFO] [stderr] | [INFO] [stderr] 550 | use crate::panic_exc::unrecoverable as Unrec; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:680:4 [INFO] [stderr] | [INFO] [stderr] 680 | if(x.len() > y.len()){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:692:4 [INFO] [stderr] | [INFO] [stderr] 692 | if(x.len() > y.len()){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:774:5 [INFO] [stderr] | [INFO] [stderr] 774 | if(self.is_reply){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary braces around `for` iterator expression [INFO] [stderr] --> src/main.rs:872:11 [INFO] [stderr] | [INFO] [stderr] 872 | for i in {0..n} { [INFO] [stderr] | ^^^^^^ help: remove these braces [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_braces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:51:6 [INFO] [stderr] | [INFO] [stderr] 51 | let b = [3; 4]; // => b = [3, 3, 3, 3] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sum` [INFO] [stderr] --> src/main.rs:52:6 [INFO] [stderr] | [INFO] [stderr] 52 | let sum = for element in a.iter(){ [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_sum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/main.rs:249:7 [INFO] [stderr] | [INFO] [stderr] 249 | let hello = hello_return(&s1); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> src/main.rs:259:7 [INFO] [stderr] | [INFO] [stderr] 259 | let s1 = String::from("range string"); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/main.rs:326:10 [INFO] [stderr] | [INFO] [stderr] 326 | let home = StrictIpAddr::V4(127, 0, 0, 1); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `homev6` [INFO] [stderr] --> src/main.rs:327:10 [INFO] [stderr] | [INFO] [stderr] 327 | let homev6 = StrictIpAddr::V6(String::from("::1")); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_homev6` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nonum` [INFO] [stderr] --> src/main.rs:348:7 [INFO] [stderr] | [INFO] [stderr] 348 | let nonum: Option = Option::None; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/main.rs:392:7 [INFO] [stderr] | [INFO] [stderr] 392 | let v: Vec = Vec::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:468:7 [INFO] [stderr] | [INFO] [stderr] 468 | let s = String::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:627:8 [INFO] [stderr] | [INFO] [stderr] 627 | let z = String::from("I am number FIVE!"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:872:6 [INFO] [stderr] | [INFO] [stderr] 872 | for i in {0..n} { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:971:17 [INFO] [stderr] | [INFO] [stderr] 971 | fn hello_return(s: &str) -> &str{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:22:13 [INFO] [stderr] | [INFO] [stderr] 22 | let f = match f{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | let f = File::open("hello.txt").unwrap_or_else(|err| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let f = File::open("hello.txt").unwrap_or_else(|err| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:247:7 [INFO] [stderr] | [INFO] [stderr] 247 | let mut s1 = String::from("quick brown"); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:526:7 [INFO] [stderr] | [INFO] [stderr] 526 | let mut scores: HashMap<_, _> = teams.iter().zip(points.iter()).collect(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `deliberate_panic` [INFO] [stderr] --> src/panic_exc.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn deliberate_panic(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `accident_panic` [INFO] [stderr] --> src/panic_exc.rs:7:12 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn accident_panic(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `version` [INFO] [stderr] --> src/main.rs:653:2 [INFO] [stderr] | [INFO] [stderr] 653 | fn version(&self)->i32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `announce_no_lifetime` [INFO] [stderr] --> src/main.rs:668:2 [INFO] [stderr] | [INFO] [stderr] 668 | fn announce_no_lifetime(&self, ann: &str) -> &str{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `content` [INFO] [stderr] --> src/main.rs:755:2 [INFO] [stderr] | [INFO] [stderr] 755 | content: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `username` [INFO] [stderr] --> src/main.rs:761:2 [INFO] [stderr] | [INFO] [stderr] 761 | username: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NewYork` [INFO] [stderr] --> src/main.rs:846:2 [INFO] [stderr] | [INFO] [stderr] 846 | NewYork, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/main.rs:851:2 [INFO] [stderr] | [INFO] [stderr] 851 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:852:2 [INFO] [stderr] | [INFO] [stderr] 852 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:853:2 [INFO] [stderr] | [INFO] [stderr] 853 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `formatted` [INFO] [stderr] --> src/main.rs:896:2 [INFO] [stderr] | [INFO] [stderr] 896 | fn formatted(&self){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `idPrint` should have a snake case name [INFO] [stderr] --> src/main.rs:930:5 [INFO] [stderr] | [INFO] [stderr] 930 | fn idPrint(&self){ [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `id_print` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `getMaxSigninAttempts` should have a snake case name [INFO] [stderr] --> src/main.rs:937:5 [INFO] [stderr] | [INFO] [stderr] 937 | fn getMaxSigninAttempts()->u32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_max_signin_attempts` [INFO] [stderr] [INFO] [stderr] warning: 36 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.07s [INFO] running `"docker" "inspect" "851780be7751a020626045b50df48554714c3cefd04623e3ef61d68c52aba398"` [INFO] running `"docker" "rm" "-f" "851780be7751a020626045b50df48554714c3cefd04623e3ef61d68c52aba398"` [INFO] [stdout] 851780be7751a020626045b50df48554714c3cefd04623e3ef61d68c52aba398 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"` [INFO] [stdout] f44fdc333cd67575a7c2506fe0b4d7f551e30896bc5dddd9078e05b2d58c9ff4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "f44fdc333cd67575a7c2506fe0b4d7f551e30896bc5dddd9078e05b2d58c9ff4"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::panic_exc::unrecoverable as Unrec` [INFO] [stderr] --> src/main.rs:550:7 [INFO] [stderr] | [INFO] [stderr] 550 | use crate::panic_exc::unrecoverable as Unrec; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:680:4 [INFO] [stderr] | [INFO] [stderr] 680 | if(x.len() > y.len()){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:692:4 [INFO] [stderr] | [INFO] [stderr] 692 | if(x.len() > y.len()){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:774:5 [INFO] [stderr] | [INFO] [stderr] 774 | if(self.is_reply){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary braces around `for` iterator expression [INFO] [stderr] --> src/main.rs:872:11 [INFO] [stderr] | [INFO] [stderr] 872 | for i in {0..n} { [INFO] [stderr] | ^^^^^^ help: remove these braces [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_braces)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:51:6 [INFO] [stderr] | [INFO] [stderr] 51 | let b = [3; 4]; // => b = [3, 3, 3, 3] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sum` [INFO] [stderr] --> src/main.rs:52:6 [INFO] [stderr] | [INFO] [stderr] 52 | let sum = for element in a.iter(){ [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_sum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/main.rs:249:7 [INFO] [stderr] | [INFO] [stderr] 249 | let hello = hello_return(&s1); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> src/main.rs:259:7 [INFO] [stderr] | [INFO] [stderr] 259 | let s1 = String::from("range string"); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/main.rs:326:10 [INFO] [stderr] | [INFO] [stderr] 326 | let home = StrictIpAddr::V4(127, 0, 0, 1); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `homev6` [INFO] [stderr] --> src/main.rs:327:10 [INFO] [stderr] | [INFO] [stderr] 327 | let homev6 = StrictIpAddr::V6(String::from("::1")); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_homev6` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nonum` [INFO] [stderr] --> src/main.rs:348:7 [INFO] [stderr] | [INFO] [stderr] 348 | let nonum: Option = Option::None; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_nonum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/main.rs:392:7 [INFO] [stderr] | [INFO] [stderr] 392 | let v: Vec = Vec::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:468:7 [INFO] [stderr] | [INFO] [stderr] 468 | let s = String::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:627:8 [INFO] [stderr] | [INFO] [stderr] 627 | let z = String::from("I am number FIVE!"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:872:6 [INFO] [stderr] | [INFO] [stderr] 872 | for i in {0..n} { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:971:17 [INFO] [stderr] | [INFO] [stderr] 971 | fn hello_return(s: &str) -> &str{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:22:13 [INFO] [stderr] | [INFO] [stderr] 22 | let f = match f{ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | let f = File::open("hello.txt").unwrap_or_else(|err| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/panic_exc.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let f = File::open("hello.txt").unwrap_or_else(|err| { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:247:7 [INFO] [stderr] | [INFO] [stderr] 247 | let mut s1 = String::from("quick brown"); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:526:7 [INFO] [stderr] | [INFO] [stderr] 526 | let mut scores: HashMap<_, _> = teams.iter().zip(points.iter()).collect(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `deliberate_panic` [INFO] [stderr] --> src/panic_exc.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn deliberate_panic(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `accident_panic` [INFO] [stderr] --> src/panic_exc.rs:7:12 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn accident_panic(){ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `version` [INFO] [stderr] --> src/main.rs:653:2 [INFO] [stderr] | [INFO] [stderr] 653 | fn version(&self)->i32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `announce_no_lifetime` [INFO] [stderr] --> src/main.rs:668:2 [INFO] [stderr] | [INFO] [stderr] 668 | fn announce_no_lifetime(&self, ann: &str) -> &str{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `content` [INFO] [stderr] --> src/main.rs:755:2 [INFO] [stderr] | [INFO] [stderr] 755 | content: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `username` [INFO] [stderr] --> src/main.rs:761:2 [INFO] [stderr] | [INFO] [stderr] 761 | username: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NewYork` [INFO] [stderr] --> src/main.rs:846:2 [INFO] [stderr] | [INFO] [stderr] 846 | NewYork, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/main.rs:851:2 [INFO] [stderr] | [INFO] [stderr] 851 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:852:2 [INFO] [stderr] | [INFO] [stderr] 852 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:853:2 [INFO] [stderr] | [INFO] [stderr] 853 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `formatted` [INFO] [stderr] --> src/main.rs:896:2 [INFO] [stderr] | [INFO] [stderr] 896 | fn formatted(&self){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `idPrint` should have a snake case name [INFO] [stderr] --> src/main.rs:930:5 [INFO] [stderr] | [INFO] [stderr] 930 | fn idPrint(&self){ [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `id_print` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `getMaxSigninAttempts` should have a snake case name [INFO] [stderr] --> src/main.rs:937:5 [INFO] [stderr] | [INFO] [stderr] 937 | fn getMaxSigninAttempts()->u32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `get_max_signin_attempts` [INFO] [stderr] [INFO] [stderr] warning: 36 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/variables-69c1f1a01c811582 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "f44fdc333cd67575a7c2506fe0b4d7f551e30896bc5dddd9078e05b2d58c9ff4"` [INFO] running `"docker" "rm" "-f" "f44fdc333cd67575a7c2506fe0b4d7f551e30896bc5dddd9078e05b2d58c9ff4"` [INFO] [stdout] f44fdc333cd67575a7c2506fe0b4d7f551e30896bc5dddd9078e05b2d58c9ff4