[INFO] updating cached repository zhenhuanlee/rust_learn [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/zhenhuanlee/rust_learn [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/zhenhuanlee/rust_learn" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/zhenhuanlee/rust_learn"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/zhenhuanlee/rust_learn'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/zhenhuanlee/rust_learn" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/zhenhuanlee/rust_learn"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/zhenhuanlee/rust_learn'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] f0260ca00cf2a85b25360659997043da257c353b [INFO] sha for GitHub repo zhenhuanlee/rust_learn: f0260ca00cf2a85b25360659997043da257c353b [INFO] validating manifest of zhenhuanlee/rust_learn on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of zhenhuanlee/rust_learn on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing zhenhuanlee/rust_learn [INFO] finished frobbing zhenhuanlee/rust_learn [INFO] frobbed toml for zhenhuanlee/rust_learn written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/zhenhuanlee/rust_learn/Cargo.toml [INFO] started frobbing zhenhuanlee/rust_learn [INFO] finished frobbing zhenhuanlee/rust_learn [INFO] frobbed toml for zhenhuanlee/rust_learn written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/zhenhuanlee/rust_learn/Cargo.toml [INFO] crate zhenhuanlee/rust_learn already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking zhenhuanlee/rust_learn against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-6/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/zhenhuanlee/rust_learn:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 2fe6933d1ac888ef69435cc90784bff436f3b6e1391fa76bb94236e47f3326a4 [INFO] running `"docker" "start" "-a" "2fe6933d1ac888ef69435cc90784bff436f3b6e1391fa76bb94236e47f3326a4"` [INFO] [stderr] Checking soo v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `s3` [INFO] [stderr] --> src/main.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | let s3 = s1.clone(); // 拷贝 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s3` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s2` [INFO] [stderr] --> src/main.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let s2 = s1; // 指针传递，s1 被移除 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s5` [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let s5 = s4; // 合法，因为是值传递 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s5` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r1` [INFO] [stderr] --> src/main.rs:99:9 [INFO] [stderr] | [INFO] [stderr] 99 | let r1 = &mut s; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r3` [INFO] [stderr] --> src/main.rs:103:13 [INFO] [stderr] | [INFO] [stderr] 103 | let r3 = &s2; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r4` [INFO] [stderr] --> src/main.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let r4 = &mut &s2; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r4` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:97:9 [INFO] [stderr] | [INFO] [stderr] 97 | let mut s2 = String::from("world"); [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:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | let mut s = String::from("hello world"); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test1` [INFO] [stderr] --> src/main.rs:30:1 [INFO] [stderr] | [INFO] [stderr] 30 | fn test1 () { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test2` [INFO] [stderr] --> src/main.rs:37:1 [INFO] [stderr] | [INFO] [stderr] warning: unused variable: `s3` [INFO] [stderr] 37 | fn test2() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] --> src/main.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | let s3 = s1.clone(); // 拷贝 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s3` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test3` [INFO] [stderr] --> src/main.rs:55:1 [INFO] [stderr] | [INFO] [stderr] 55 | fn test3() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s2` [INFO] [stderr] --> src/main.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let s2 = s1; // 指针传递，s1 被移除 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s2` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test3_1` [INFO] [stderr] --> src/main.rs:66:1 [INFO] [stderr] | [INFO] [stderr] 66 | fn test3_1(sth: String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test3_2` [INFO] [stderr] warning: unused variable: `s5` [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] --> src/main.rs:70:1 [INFO] [stderr] 45 | let s5 = s4; // 合法，因为是值传递 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s5` [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] 70 | fn test3_2(si: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test4` [INFO] [stderr] --> src/main.rs:75:1 [INFO] [stderr] | [INFO] [stderr] 75 | fn test4() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test4_1` [INFO] [stderr] --> src/main.rs:82:1 [INFO] [stderr] | [INFO] [stderr] 82 | fn test4_1(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test5` [INFO] [stderr] --> src/main.rs:86:1 [INFO] [stderr] | [INFO] [stderr] 86 | fn test5() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test5_1` [INFO] [stderr] --> src/main.rs:91:1 [INFO] [stderr] | [INFO] [stderr] 91 | fn test5_1(s: &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r1` [INFO] [stderr] --> src/main.rs:99:9 [INFO] [stderr] | [INFO] [stderr] 99 | let r1 = &mut s; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r1` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test6` [INFO] [stderr] --> src/main.rs:95:1 [INFO] [stderr] | [INFO] [stderr] 95 | fn test6() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test7` [INFO] [stderr] warning: unused variable: `r3` [INFO] [stderr] --> src/main.rs:103:13 [INFO] [stderr] | [INFO] [stderr] 103 | let r3 = &s2; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r3` [INFO] [stderr] [INFO] [stderr] --> src/main.rs:110:1 [INFO] [stderr] | [INFO] [stderr] 110 | fn test7() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test8` [INFO] [stderr] --> src/main.rs:119:1 [INFO] [stderr] | [INFO] [stderr] 119 | fn test8() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test9` [INFO] [stderr] --> src/main.rs:131:1 [INFO] [stderr] | [INFO] [stderr] 131 | fn test9() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `User` [INFO] [stderr] --> src/main.rs:141:1 [INFO] [stderr] | [INFO] [stderr] 141 | struct User { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r4` [INFO] [stderr] --> src/main.rs:105:9 [INFO] [stderr] warning: function is never used: `test10` [INFO] [stderr] | [INFO] [stderr] --> src/main.rs:147:1 [INFO] [stderr] 105 | let r4 = &mut &s2; [INFO] [stderr] | [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r4` [INFO] [stderr] 147 | fn test10() { [INFO] [stderr] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Rectangle` [INFO] [stderr] --> src/main.rs:161:1 [INFO] [stderr] | [INFO] [stderr] 161 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `area` [INFO] [stderr] --> src/main.rs:167:5 [INFO] [stderr] | [INFO] [stderr] 167 | fn area(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `can_hold` [INFO] [stderr] --> src/main.rs:172:5 [INFO] [stderr] | [INFO] [stderr] 172 | fn can_hold(&self, other: &Rectangle) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `square` [INFO] [stderr] --> src/main.rs:176:5 [INFO] [stderr] | [INFO] [stderr] 176 | fn square(size: u32) -> Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrKind` [INFO] [stderr] --> src/main.rs:183:1 [INFO] [stderr] | [INFO] [stderr] 183 | enum IpAddrKind { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrKind2` [INFO] [stderr] --> src/main.rs:188:1 [INFO] [stderr] | [INFO] [stderr] 188 | enum IpAddrKind2 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `IpAddr` [INFO] [stderr] --> src/main.rs:195:1 [INFO] [stderr] | [INFO] [stderr] 195 | struct IpAddr { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test11` [INFO] [stderr] --> src/main.rs:200:1 [INFO] [stderr] | [INFO] [stderr] 200 | fn test11() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print_addr` [INFO] [stderr] --> src/main.rs:218:5 [INFO] [stderr] | [INFO] [stderr] 218 | fn print_addr(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/main.rs:231:5 [INFO] [stderr] | [INFO] [stderr] 231 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:232:5 [INFO] [stderr] | [INFO] [stderr] 232 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:233:5 [INFO] [stderr] | [INFO] [stderr] 233 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:97:9 [INFO] [stderr] | [INFO] [stderr] 97 | let mut s2 = String::from("world"); [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:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | let mut s = String::from("hello world"); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test1` [INFO] [stderr] --> src/main.rs:30:1 [INFO] [stderr] | [INFO] [stderr] 30 | fn test1 () { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test2` [INFO] [stderr] --> src/main.rs:37:1 [INFO] [stderr] | [INFO] [stderr] 37 | fn test2() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test3` [INFO] [stderr] --> src/main.rs:55:1 [INFO] [stderr] | [INFO] [stderr] 55 | fn test3() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test3_1` [INFO] [stderr] --> src/main.rs:66:1 [INFO] [stderr] | [INFO] [stderr] 66 | fn test3_1(sth: String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test3_2` [INFO] [stderr] --> src/main.rs:70:1 [INFO] [stderr] | [INFO] [stderr] 70 | fn test3_2(si: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test4` [INFO] [stderr] --> src/main.rs:75:1 [INFO] [stderr] | [INFO] [stderr] 75 | fn test4() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test4_1` [INFO] [stderr] --> src/main.rs:82:1 [INFO] [stderr] | [INFO] [stderr] 82 | fn test4_1(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test5` [INFO] [stderr] --> src/main.rs:86:1 [INFO] [stderr] | [INFO] [stderr] 86 | fn test5() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test5_1` [INFO] [stderr] --> src/main.rs:91:1 [INFO] [stderr] | [INFO] [stderr] 91 | fn test5_1(s: &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test6` [INFO] [stderr] --> src/main.rs:95:1 [INFO] [stderr] | [INFO] [stderr] 95 | fn test6() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test7` [INFO] [stderr] --> src/main.rs:110:1 [INFO] [stderr] | [INFO] [stderr] 110 | fn test7() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test8` [INFO] [stderr] --> src/main.rs:119:1 [INFO] [stderr] | [INFO] [stderr] 119 | fn test8() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test9` [INFO] [stderr] --> src/main.rs:131:1 [INFO] [stderr] | [INFO] [stderr] 131 | fn test9() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `User` [INFO] [stderr] --> src/main.rs:141:1 [INFO] [stderr] | [INFO] [stderr] 141 | struct User { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test10` [INFO] [stderr] --> src/main.rs:147:1 [INFO] [stderr] | [INFO] [stderr] 147 | fn test10() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Rectangle` [INFO] [stderr] --> src/main.rs:161:1 [INFO] [stderr] | [INFO] [stderr] 161 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `area` [INFO] [stderr] --> src/main.rs:167:5 [INFO] [stderr] | [INFO] [stderr] 167 | fn area(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `can_hold` [INFO] [stderr] --> src/main.rs:172:5 [INFO] [stderr] | [INFO] [stderr] 172 | fn can_hold(&self, other: &Rectangle) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `square` [INFO] [stderr] --> src/main.rs:176:5 [INFO] [stderr] | [INFO] [stderr] 176 | fn square(size: u32) -> Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrKind` [INFO] [stderr] --> src/main.rs:183:1 [INFO] [stderr] | [INFO] [stderr] 183 | enum IpAddrKind { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrKind2` [INFO] [stderr] --> src/main.rs:188:1 [INFO] [stderr] | [INFO] [stderr] 188 | enum IpAddrKind2 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `IpAddr` [INFO] [stderr] --> src/main.rs:195:1 [INFO] [stderr] | [INFO] [stderr] 195 | struct IpAddr { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test11` [INFO] [stderr] --> src/main.rs:200:1 [INFO] [stderr] | [INFO] [stderr] 200 | fn test11() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print_addr` [INFO] [stderr] --> src/main.rs:218:5 [INFO] [stderr] | [INFO] [stderr] 218 | fn print_addr(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/main.rs:231:5 [INFO] [stderr] | [INFO] [stderr] 231 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/main.rs:232:5 [INFO] [stderr] | [INFO] [stderr] 232 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/main.rs:233:5 [INFO] [stderr] | [INFO] [stderr] 233 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.25s [INFO] running `"docker" "inspect" "2fe6933d1ac888ef69435cc90784bff436f3b6e1391fa76bb94236e47f3326a4"` [INFO] running `"docker" "rm" "-f" "2fe6933d1ac888ef69435cc90784bff436f3b6e1391fa76bb94236e47f3326a4"` [INFO] [stdout] 2fe6933d1ac888ef69435cc90784bff436f3b6e1391fa76bb94236e47f3326a4