[INFO] updating cached repository vijaysharmay/rust-session-part-1 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/vijaysharmay/rust-session-part-1 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/vijaysharmay/rust-session-part-1" "work/ex/clippy-test-run/sources/stable/gh/vijaysharmay/rust-session-part-1"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/vijaysharmay/rust-session-part-1'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/vijaysharmay/rust-session-part-1" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vijaysharmay/rust-session-part-1"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vijaysharmay/rust-session-part-1'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c2d2d75c76d8f4dac56cc464f257337e34de687a [INFO] sha for GitHub repo vijaysharmay/rust-session-part-1: c2d2d75c76d8f4dac56cc464f257337e34de687a [INFO] validating manifest of vijaysharmay/rust-session-part-1 on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of vijaysharmay/rust-session-part-1 on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing vijaysharmay/rust-session-part-1 [INFO] finished frobbing vijaysharmay/rust-session-part-1 [INFO] frobbed toml for vijaysharmay/rust-session-part-1 written to work/ex/clippy-test-run/sources/stable/gh/vijaysharmay/rust-session-part-1/Cargo.toml [INFO] started frobbing vijaysharmay/rust-session-part-1 [INFO] finished frobbing vijaysharmay/rust-session-part-1 [INFO] frobbed toml for vijaysharmay/rust-session-part-1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vijaysharmay/rust-session-part-1/Cargo.toml [INFO] crate vijaysharmay/rust-session-part-1 has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] linting vijaysharmay/rust-session-part-1 against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/vijaysharmay/rust-session-part-1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 3d7f2f8fb499e00daed29ab0e652bc745c58422cb96d08c720b400f8bb0dbf03 [INFO] running `"docker" "start" "-a" "3d7f2f8fb499e00daed29ab0e652bc745c58422cb96d08c720b400f8bb0dbf03"` [INFO] [stderr] Checking rust-techtonic-session v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::println_empty_string)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: 5th binding whose name is just one char [INFO] [stderr] --> src/lesson_4.rs:30:13 [INFO] [stderr] | [INFO] [stderr] 30 | let e = 10; // e is defined in this scope and will not be available outside it [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::many_single_char_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::println_empty_string)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: 5th binding whose name is just one char [INFO] [stderr] --> src/lesson_4.rs:30:13 [INFO] [stderr] | [INFO] [stderr] 30 | let e = 10; // e is defined in this scope and will not be available outside it [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::many_single_char_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: using `println!("")` [INFO] [stderr] --> src/./common.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | println!(""); [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `println!()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string [INFO] [stderr] [INFO] [stderr] warning: value assigned to `a1` is never read [INFO] [stderr] --> src/lesson_1.rs:16:13 [INFO] [stderr] | [INFO] [stderr] 16 | let mut a1: i32 = 1; [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `a1` is never read [INFO] [stderr] --> src/lesson_1.rs:16:13 [INFO] [stderr] | [INFO] [stderr] 16 | let mut a1: i32 = 1; [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::useless_format)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_wild_err_arm)] on by default [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: single-character string constant used as pattern [INFO] [stderr] --> src/lesson_2.rs:21:23 [INFO] [stderr] | [INFO] [stderr] 21 | for s in a4.split(" "){ [INFO] [stderr] | ^^^ help: try using a char instead: `' '` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::single_char_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::useless_format)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_wild_err_arm)] on by default [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. [INFO] [stderr] --> src/lesson_4.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | fn ref_store(v: &Vec){ [INFO] [stderr] | ^^^^^^^^^ help: change this to: `&[i32]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::ptr_arg)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg [INFO] [stderr] [INFO] [stderr] warning: single-character string constant used as pattern [INFO] [stderr] --> src/lesson_2.rs:21:23 [INFO] [stderr] | [INFO] [stderr] 21 | for s in a4.split(" "){ [INFO] [stderr] | ^^^ help: try using a char instead: `' '` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::single_char_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. [INFO] [stderr] --> src/lesson_4.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | fn ref_store(v: &Vec){ [INFO] [stderr] | ^^^^^^^^^ help: change this to: `&[i32]` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::ptr_arg)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/lesson_8.rs:88:13 [INFO] [stderr] | [INFO] [stderr] 88 | self.c = self.c + self.n; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.c += self.n` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::assign_op_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/lesson_8.rs:105:30 [INFO] [stderr] | [INFO] [stderr] 105 | .map(|n| n*n) [INFO] [stderr] | ______________________________^ [INFO] [stderr] 106 | | .fold(0, |c, a| c+ a); [INFO] [stderr] | |_____________________________________^ help: try: `.sum()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unnecessary_fold)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/main.rs:32:9 [INFO] [stderr] | [INFO] [stderr] 32 | Err(_) => panic!("something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/lesson_8.rs:88:13 [INFO] [stderr] | [INFO] [stderr] 88 | self.c = self.c + self.n; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.c += self.n` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::assign_op_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/lesson_8.rs:105:30 [INFO] [stderr] | [INFO] [stderr] 105 | .map(|n| n*n) [INFO] [stderr] | ______________________________^ [INFO] [stderr] 106 | | .fold(0, |c, a| c+ a); [INFO] [stderr] | |_____________________________________^ help: try: `.sum()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unnecessary_fold)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: useless use of `format!` [INFO] [stderr] --> src/./common.rs:32:20 [INFO] [stderr] | [INFO] [stderr] 32 | println!("{}", format!("{}", message)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `message.to_string()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format [INFO] [stderr] = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/./common.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | Err(_) => panic!("Something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/main.rs:32:9 [INFO] [stderr] | [INFO] [stderr] 32 | Err(_) => panic!("something went wrong"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.13s [INFO] running `"docker" "inspect" "3d7f2f8fb499e00daed29ab0e652bc745c58422cb96d08c720b400f8bb0dbf03"` [INFO] running `"docker" "rm" "-f" "3d7f2f8fb499e00daed29ab0e652bc745c58422cb96d08c720b400f8bb0dbf03"` [INFO] [stdout] 3d7f2f8fb499e00daed29ab0e652bc745c58422cb96d08c720b400f8bb0dbf03