[INFO] cloning repository https://github.com/marionebl/rust-by-example-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marionebl/rust-by-example-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarionebl%2Frust-by-example-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarionebl%2Frust-by-example-exercises'... 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Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1c6e3a6991ac6b6b5487abeb8b4284d89a8588d2a6510a029c88fd9d38cd5807", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c6e3a6991ac6b6b5487abeb8b4284d89a8588d2a6510a029c88fd9d38cd5807", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c6e3a6991ac6b6b5487abeb8b4284d89a8588d2a6510a029c88fd9d38cd5807", kill_on_drop: false }` [INFO] [stdout] 1c6e3a6991ac6b6b5487abeb8b4284d89a8588d2a6510a029c88fd9d38cd5807 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7dc14a2b7bc637e4750c6f067c3b68e47eb2ccabbc8c1dcdf4be6ae1765a47f7 [INFO] running `Command { std: "docker" "start" "-a" "7dc14a2b7bc637e4750c6f067c3b68e47eb2ccabbc8c1dcdf4be6ae1765a47f7", kill_on_drop: false }` [INFO] [stderr] Checking rust-by-example-exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/bin/8-5-3-match-binding.rs:8:15 [INFO] [stdout] | [INFO] [stdout] 8 | n @ 1 ... 12 => println!("Child of age {}", n), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/bin/8-5-3-match-binding.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | n @ 13 ... 19 => println!("Teen of age {}", n), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `noisy_unused_function` [INFO] [stdout] --> src/bin/12-1-attributes-dead-code.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn noisy_unused_function() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/bin/8-5-match.rs:22:15 [INFO] [stdout] | [INFO] [stdout] 22 | 13...19 => println!("This is 13...19"), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `RGB` [INFO] [stdout] --> src/bin/8-5-match.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | RGB(u8, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `HSV` [INFO] [stdout] --> src/bin/8-5-match.rs:83:5 [INFO] [stdout] | [INFO] [stdout] 83 | HSV(u16, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `HSL` [INFO] [stdout] --> src/bin/8-5-match.rs:84:5 [INFO] [stdout] | [INFO] [stdout] 84 | HSL(u16, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CMY` [INFO] [stdout] --> src/bin/8-5-match.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 85 | CMY(u8, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CMYK` [INFO] [stdout] --> src/bin/8-5-match.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 86 | CMYK(u8, u8, u8, u8) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/bin/13-8-2-generic-associated-types.rs:7:24 [INFO] [stdout] | [INFO] [stdout] 7 | fn contains(&self, &Self::A, &Self::B) -> bool; [INFO] [stdout] | ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::A` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/bin/13-8-2-generic-associated-types.rs:7:34 [INFO] [stdout] | [INFO] [stdout] 7 | fn contains(&self, &Self::A, &Self::B) -> bool; [INFO] [stdout] | ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::B` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/bin/9-2-6-closures-std-lib-iterator-any.rs:16:70 [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/bin/9-2-6-closures-std-lib-iterator-find.rs:15:47 [INFO] [stdout] | [INFO] [stdout] 15 | println!("Find 2 in array2: {:?}", array2.into_iter().find(|&&x| x == 2)); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 15 | println!("Find 2 in array2: {:?}", array2.iter().find(|&&x| x == 2)); [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 15 | println!("Find 2 in array2: {:?}", IntoIterator::into_iter(array2).find(|&&x| x == 2)); [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/bin/9-2-6-closures-std-lib-iterator-any.rs:16:40 [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", array2.iter().any(|&x| x == 2));; [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));; [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/bin/9-2-6-closures-std-lib-iterator-any.rs:16:70 [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/bin/9-2-6-closures-std-lib-iterator-any.rs:16:40 [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", array2.iter().any(|&x| x == 2));; [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 16 | println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));; [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/9-2-5-closures-as-output.rs:9:23 [INFO] [stdout] | [INFO] [stdout] 9 | fn create_fn() -> Box { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Fn()` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/9-2-5-closures-as-output.rs:14:26 [INFO] [stdout] | [INFO] [stdout] 14 | fn create_fnmut() -> Box { [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn FnMut()` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments` [INFO] [stdout] --> src/bin/3-2-1-enums.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #![allow(unused_doc_comment)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(renamed_and_removed_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected item, found `36` [INFO] [stdout] --> src/bin/13-5-2-generic-bounds-multiple.rs:17:1 [INFO] [stdout] | [INFO] [stdout] 17 | 36 [INFO] [stdout] | ^^ expected item [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-by-example-exercises` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/bin/13-8-1-generic-associated-items.rs:4:24 [INFO] [stdout] | [INFO] [stdout] 4 | fn contains(&self, &A, &B) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> src/bin/13-8-1-generic-associated-items.rs:4:28 [INFO] [stdout] | [INFO] [stdout] 4 | fn contains(&self, &A, &B) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &B` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/9-2-5-closures-as-output.rs:9:23 [INFO] [stdout] | [INFO] [stdout] 9 | fn create_fn() -> Box { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Fn()` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/9-2-5-closures-as-output.rs:14:26 [INFO] [stdout] | [INFO] [stdout] 14 | fn create_fnmut() -> Box { [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn FnMut()` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/bin/8-5-match.rs:22:15 [INFO] [stdout] | [INFO] [stdout] 22 | 13...19 => println!("This is 13...19"), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `RGB` [INFO] [stdout] --> src/bin/8-5-match.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | RGB(u8, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `HSV` [INFO] [stdout] --> src/bin/8-5-match.rs:83:5 [INFO] [stdout] | [INFO] [stdout] 83 | HSV(u16, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `HSL` [INFO] [stdout] --> src/bin/8-5-match.rs:84:5 [INFO] [stdout] | [INFO] [stdout] 84 | HSL(u16, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CMY` [INFO] [stdout] --> src/bin/8-5-match.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 85 | CMY(u8, u8, u8), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CMYK` [INFO] [stdout] --> src/bin/8-5-match.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 86 | CMYK(u8, u8, u8, u8) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "7dc14a2b7bc637e4750c6f067c3b68e47eb2ccabbc8c1dcdf4be6ae1765a47f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7dc14a2b7bc637e4750c6f067c3b68e47eb2ccabbc8c1dcdf4be6ae1765a47f7", kill_on_drop: false }` [INFO] [stdout] 7dc14a2b7bc637e4750c6f067c3b68e47eb2ccabbc8c1dcdf4be6ae1765a47f7