[INFO] updating cached repository https://github.com/CarloMicieli/rust_tutorial [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2d779014ddd8a8ad7726e284a9b8ae61a4b081ef [INFO] testing CarloMicieli/rust_tutorial against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarloMicieli%2Frust_tutorial" "work/builds/worker-6/source"` [INFO] [stderr] Cloning into 'work/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CarloMicieli/rust_tutorial on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/CarloMicieli/rust_tutorial [INFO] finished tweaking git repo https://github.com/CarloMicieli/rust_tutorial [INFO] tweaked toml for git repo https://github.com/CarloMicieli/rust_tutorial written to work/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/CarloMicieli/rust_tutorial already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] e3fd64335ccfaf8e6393471f0f081e991b5027f8fcb93a7c8a114ce2a674aab7 [INFO] running `"docker" "start" "-a" "e3fd64335ccfaf8e6393471f0f081e991b5027f8fcb93a7c8a114ce2a674aab7"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust_tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: function is never used: `thruth` [INFO] [stderr] --> src/control_flow/ifs.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn thruth(x: i32) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `if_as_expression` [INFO] [stderr] --> src/control_flow/ifs.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn if_as_expression(x: i32) -> &'static str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sum` [INFO] [stderr] --> src/control_flow/loops.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn sum(from: i32, to: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sum2` [INFO] [stderr] --> src/control_flow/loops.rs:15:1 [INFO] [stderr] | [INFO] [stderr] 15 | pub fn sum2(from: i32, to: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sum3` [INFO] [stderr] --> src/control_flow/loops.rs:24:1 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn sum3(from: i32, to: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Val` [INFO] [stderr] --> src/custom_types/expressions.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | Val { n: i32 }, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Variable` [INFO] [stderr] --> src/custom_types/expressions.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Variable { name: String, exp: Box }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Sum` [INFO] [stderr] --> src/custom_types/expressions.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Sum { lhs: Box, rhs: Box }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `constant` [INFO] [stderr] --> src/custom_types/expressions.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | pub fn constant(val: i32) -> Exp { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `variable` [INFO] [stderr] --> src/custom_types/expressions.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn variable(name: &str, exp: Exp) -> Exp { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sum` [INFO] [stderr] --> src/custom_types/expressions.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn sum(lhs: Exp, rhs: Exp) -> Exp { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `eval` [INFO] [stderr] --> src/custom_types/expressions.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | pub fn eval(exp: &Exp) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `numerator` [INFO] [stderr] --> src/custom_types/rational.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn numerator(&self) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `denominator` [INFO] [stderr] --> src/custom_types/rational.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | pub fn denominator(&self) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from` [INFO] [stderr] --> src/custom_types/rational.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | pub fn from(num: i32) -> Rational { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sum` [INFO] [stderr] --> src/functions/functions.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | fn sum(a: i32, b: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `DividedByZero` [INFO] [stderr] --> src/functions/functions.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | DividedByZero, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `div` [INFO] [stderr] --> src/functions/functions.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | fn div(a: i32, b: i32) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `fib` [INFO] [stderr] --> src/functions/functions.rs:18:1 [INFO] [stderr] | [INFO] [stderr] 18 | pub fn fib(n: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `max` [INFO] [stderr] --> src/functions/functions.rs:28:1 [INFO] [stderr] | [INFO] [stderr] 28 | / fn max(a: T, b: T) -> T [INFO] [stderr] 29 | | where [INFO] [stderr] 30 | | T: PartialOrd, [INFO] [stderr] 31 | | { [INFO] [stderr] ... | [INFO] [stderr] 36 | | } [INFO] [stderr] 37 | | } [INFO] [stderr] | |_^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `hello` [INFO] [stderr] --> src/primitive_types/strings.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | fn hello(name: &str) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the `d:` in this pattern is redundant [INFO] [stderr] --> src/custom_types/rational.rs:80:30 [INFO] [stderr] | [INFO] [stderr] 80 | let Rational { n: c, d: d } = other; [INFO] [stderr] | --^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.36s [INFO] running `"docker" "inspect" "e3fd64335ccfaf8e6393471f0f081e991b5027f8fcb93a7c8a114ce2a674aab7"` [INFO] running `"docker" "rm" "-f" "e3fd64335ccfaf8e6393471f0f081e991b5027f8fcb93a7c8a114ce2a674aab7"` [INFO] [stdout] e3fd64335ccfaf8e6393471f0f081e991b5027f8fcb93a7c8a114ce2a674aab7 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] d4e15d4a85593a16feac5b6d41916035ba9c3f82adb8430ec51dafee589a9940 [INFO] running `"docker" "start" "-a" "d4e15d4a85593a16feac5b6d41916035ba9c3f82adb8430ec51dafee589a9940"` [INFO] [stderr] Compiling rust_tutorial v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/collections/arrays.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/collections/vectors.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the `d:` in this pattern is redundant [INFO] [stderr] --> src/custom_types/rational.rs:80:30 [INFO] [stderr] | [INFO] [stderr] 80 | let Rational { n: c, d: d } = other; [INFO] [stderr] | --^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_shorthand_field_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.20s [INFO] running `"docker" "inspect" "d4e15d4a85593a16feac5b6d41916035ba9c3f82adb8430ec51dafee589a9940"` [INFO] running `"docker" "rm" "-f" "d4e15d4a85593a16feac5b6d41916035ba9c3f82adb8430ec51dafee589a9940"` [INFO] [stdout] d4e15d4a85593a16feac5b6d41916035ba9c3f82adb8430ec51dafee589a9940 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"` [INFO] [stdout] 48269400735c0d477fbe4ac91ecf719a7e647ddf6a361d69b07be84f59424f19 [INFO] running `"docker" "start" "-a" "48269400735c0d477fbe4ac91ecf719a7e647ddf6a361d69b07be84f59424f19"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.12s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_tutorial-def95f764a26d7a0 [INFO] [stdout] [INFO] [stdout] running 45 tests [INFO] [stdout] test collections::arrays::tests::should_create_an_empty_array ... ok [INFO] [stdout] test collections::vectors::tests::should_create_an_empty_vector ... ok [INFO] [stdout] test collections::vectors::tests::should_create_a_new_vector_from_iterator_values ... ok [INFO] [stdout] test collections::vectors::tests::should_create_an_empty_vector_with_an_initial_capacity ... ok [INFO] [stdout] test collections::vectors::tests::should_init_a_vector_with_the_same_value ... ok [INFO] [stdout] test collections::vectors::tests::should_increase_a_vector_adding_elements_over_its_capacity ... ok [INFO] [stdout] test control_flow::loops::tests::should_make_the_sum_from_a_number_to_another3 ... ok [INFO] [stdout] test collections::vectors::tests::should_insert_an_element_at_given_index ... ok [INFO] [stdout] test collections::vectors::tests::should_remove_an_element_at_given_index ... ok [INFO] [stdout] test control_flow::loops::tests::should_make_the_sum_from_a_number_to_another ... ok [INFO] [stdout] test control_flow::loops::tests::should_make_the_sum_from_a_number_to_another2 ... ok [INFO] [stdout] test collections::vectors::tests::should_push_new_elements_onto_vectors ... ok [INFO] [stdout] test custom_types::expressions::tests::should_create_new_variable_with_a_bound_expression ... ok [INFO] [stdout] test control_flow::ifs::tests::should_use_ifs_as_expressions ... ok [INFO] [stdout] test control_flow::ifs::tests::should_not_find_truth_in_666 ... ok [INFO] [stdout] test collections::vectors::tests::should_pop_elements_from_a_vector ... ok [INFO] [stdout] test control_flow::ifs::tests::should_find_truth_in_42 ... ok [INFO] [stdout] test custom_types::expressions::tests::should_create_a_sum_expression ... ok [INFO] [stdout] test custom_types::expressions::tests::should_evaluate_expressions ... ok [INFO] [stdout] test custom_types::rational::tests::should_compare_two_rational_numbers ... ok [INFO] [stdout] test custom_types::rational::tests::should_check_whether_the_rational_number_is_negative ... ok [INFO] [stdout] test custom_types::rational::tests::should_check_whether_the_rational_number_is_positive ... ok [INFO] [stdout] test custom_types::expressions::tests::should_create_new_constant_expressions ... ok [INFO] [stdout] test custom_types::rational::tests::should_create_new_rational_numbers ... ok [INFO] [stdout] test custom_types::rational::tests::should_substract_and_assign_two_rational_numbers ... ok [INFO] [stdout] test functions::functions::tests::div_should_return_an_ok_result_when_divisor_is_not_zero ... ok [INFO] [stdout] test custom_types::rational::tests::should_sum_and_assign_two_rational_numbers ... ok [INFO] [stdout] test functions::functions::tests::fib_should_compute_the_nth_fibonacci_number ... ok [INFO] [stdout] test custom_types::rational::tests::should_negate_rational_numbers ... ok [INFO] [stdout] test functions::functions::tests::div_should_return_an_err_result_when_divisor_is_zero ... ok [INFO] [stdout] test custom_types::rational::tests::should_sum_two_rational_numbers ... ok [INFO] [stdout] test custom_types::rational::tests::should_create_rational_numbers_from_whole_numbers ... ok [INFO] [stdout] test functions::functions::tests::max_should_find_max_between_two_f32_values ... ok [INFO] [stdout] test custom_types::rational::tests::should_make_the_difference_between_two_rational_numbers ... ok [INFO] [stdout] test custom_types::rational::tests::should_display_rational_numbers ... ok [INFO] [stdout] test custom_types::rational::tests::should_create_new_rational_numbers_simplifing_its_values ... ok [INFO] [stdout] test custom_types::rational::tests::should_display_negative_rational_numbers ... ok [INFO] [stdout] test custom_types::rational::tests::should_create_rational_numbers_from_number ... ok [INFO] [stdout] test custom_types::rational::tests::should_divide_two_rational_numbers ... ok [INFO] [stdout] test custom_types::rational::tests::should_multiply_two_rational_numbers ... ok [INFO] [stdout] test functions::functions::tests::max_should_find_max_between_two_i32_values ... ok [INFO] [stdout] test functions::functions::tests::sum_should_add_two_i32_values ... ok [INFO] [stdout] test primitive_types::strings::tests::hello_should_make_a_greeting ... ok [INFO] [stdout] test custom_types::rational::tests::should_panic_when_denominator_is_zero ... ok [INFO] [stderr] Doc-tests rust_tutorial [INFO] [stdout] test custom_types::rational::tests::should_panic_when_the_rhs_numerator_is_zero ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 45 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "48269400735c0d477fbe4ac91ecf719a7e647ddf6a361d69b07be84f59424f19"` [INFO] running `"docker" "rm" "-f" "48269400735c0d477fbe4ac91ecf719a7e647ddf6a361d69b07be84f59424f19"` [INFO] [stdout] 48269400735c0d477fbe4ac91ecf719a7e647ddf6a361d69b07be84f59424f19