[INFO] cloning repository https://github.com/NikitaMGrimm/rust-learning-problems [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NikitaMGrimm/rust-learning-problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikitaMGrimm%2Frust-learning-problems", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikitaMGrimm%2Frust-learning-problems'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] aeefb4a9812508da36585c152c3a5a2fbbd38763 [INFO] checking NikitaMGrimm/rust-learning-problems against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikitaMGrimm%2Frust-learning-problems" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NikitaMGrimm/rust-learning-problems on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/NikitaMGrimm/rust-learning-problems [INFO] finished tweaking git repo https://github.com/NikitaMGrimm/rust-learning-problems [INFO] tweaked toml for git repo https://github.com/NikitaMGrimm/rust-learning-problems written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/NikitaMGrimm/rust-learning-problems already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking NikitaMGrimm/rust-learning-problems against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikitaMGrimm%2Frust-learning-problems" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NikitaMGrimm/rust-learning-problems on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/NikitaMGrimm/rust-learning-problems [INFO] finished tweaking git repo https://github.com/NikitaMGrimm/rust-learning-problems [INFO] tweaked toml for git repo https://github.com/NikitaMGrimm/rust-learning-problems written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/NikitaMGrimm/rust-learning-problems already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking NikitaMGrimm/rust-learning-problems against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikitaMGrimm%2Frust-learning-problems" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NikitaMGrimm/rust-learning-problems on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/NikitaMGrimm/rust-learning-problems [INFO] finished tweaking git repo https://github.com/NikitaMGrimm/rust-learning-problems [INFO] tweaked toml for git repo https://github.com/NikitaMGrimm/rust-learning-problems written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/NikitaMGrimm/rust-learning-problems already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a82001dca4c7f2c5bcadbb6f96882c53bb71643a8867cf1474de3ed1d7151e40 [INFO] running `Command { std: "docker" "start" "-a" "a82001dca4c7f2c5bcadbb6f96882c53bb71643a8867cf1474de3ed1d7151e40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a82001dca4c7f2c5bcadbb6f96882c53bb71643a8867cf1474de3ed1d7151e40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a82001dca4c7f2c5bcadbb6f96882c53bb71643a8867cf1474de3ed1d7151e40", kill_on_drop: false }` [INFO] [stdout] a82001dca4c7f2c5bcadbb6f96882c53bb71643a8867cf1474de3ed1d7151e40 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 730916ed58f42d5aa152498e8b724aaa585120f3e5e66e3fbb25bb59f99af5af [INFO] running `Command { std: "docker" "start" "-a" "730916ed58f42d5aa152498e8b724aaa585120f3e5e66e3fbb25bb59f99af5af", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Checking hello_multithread v0.1.0 (/opt/rustwide/workdir/RustBook/hello_multithread) [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir/RustBook/minigrep) [INFO] [stderr] Checking blog_testing_oop v0.1.0 (/opt/rustwide/workdir/RustBook/blog_testing_oop) [INFO] [stderr] Checking blog_testing_oop_rusty v0.1.0 (/opt/rustwide/workdir/RustBook/blog_testing_oop_rusty) [INFO] [stderr] Checking progress_bar v0.1.0 (/opt/rustwide/workdir/RustBook/progress_bar) [INFO] [stderr] Checking adder v0.1.0 (/opt/rustwide/workdir/RustBook/adder) [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> RustBook/adder/src/lib.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> RustBook/adder/src/lib.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 8 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> RustBook/adder/src/lib.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct Guess { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 22 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking threadpool_testing v0.1.0 (/opt/rustwide/workdir/RustBook/threadpool_testing) [INFO] [stderr] Checking grasshopper_summation v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/grasshopper_summation) [INFO] [stderr] Checking multithreading_testing v0.1.0 (/opt/rustwide/workdir/RustBook/multithreading_testing) [INFO] [stderr] Checking sized_advanced_types_testing v0.1.0 (/opt/rustwide/workdir/RustBook/sized_advanced_types_testing) [INFO] [stderr] Checking total_amount_of_points v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/total_amount_of_points) [INFO] [stdout] warning: function `summation` is never used [INFO] [stdout] --> Codewars/8kyu/grasshopper_summation/src/lib.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn summation(n: i32) -> i32 { [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] [stderr] Checking you_cant_code_under_pressure_1 v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/you_cant_code_under_pressure_1) [INFO] [stderr] Checking while_as_loop v0.1.0 (/opt/rustwide/workdir/RustBook/while_as_loop) [INFO] [stderr] Checking function_1_hello_world v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/function_1_hello_world) [INFO] [stdout] warning: function `double_integer` is never used [INFO] [stdout] --> Codewars/8kyu/you_cant_code_under_pressure_1/src/lib.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn double_integer(n: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `points` is never used [INFO] [stdout] --> Codewars/8kyu/total_amount_of_points/src/lib.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn points(games: &[String]) -> u32 { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking nmg_first_crate v0.1.0 (/opt/rustwide/workdir/RustBook/closure_argument_macro) [INFO] [stdout] warning: function `greet` is never used [INFO] [stdout] --> Codewars/8kyu/function_1_hello_world/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn greet() -> String { [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: function `double_integer` is never used [INFO] [stdout] --> Codewars/8kyu/you_cant_code_under_pressure_1/src/lib.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn double_integer(n: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `greet` is never used [INFO] [stdout] --> Codewars/8kyu/function_1_hello_world/src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn greet() -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking calc_averages v0.1.0 (/opt/rustwide/workdir/RustBook/calc_averages) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking traits_and_stuff v0.1.0 (/opt/rustwide/workdir/RustBook/traits_and_stuff) [INFO] [stdout] warning: function `points` is never used [INFO] [stdout] --> Codewars/8kyu/total_amount_of_points/src/lib.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn points(games: &[String]) -> u32 { [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] [stderr] Checking volume_of_a_cuboid v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/volume_of_a_cuboid) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/RustBook/enums_and_pattern_matching) [INFO] [stderr] Checking structs_testing v0.1.0 (/opt/rustwide/workdir/RustBook/structs_testing) [INFO] [stdout] warning: function `some_function` is never used [INFO] [stdout] --> RustBook/traits_and_stuff/src/main.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn some_function(_t: &(impl Display + Clone), _u: &(impl Clone + Debug)) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `alternative0_some_function` is never used [INFO] [stdout] --> RustBook/traits_and_stuff/src/main.rs:46:4 [INFO] [stdout] | [INFO] [stdout] 46 | fn alternative0_some_function(_t: &T, _u: &U) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `alternative1_some_function` is never used [INFO] [stdout] --> RustBook/traits_and_stuff/src/main.rs:51:4 [INFO] [stdout] | [INFO] [stdout] 51 | fn alternative1_some_function(_t: &T, _u: &U) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user1` [INFO] [stdout] --> RustBook/structs_testing/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let user1 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `black` [INFO] [stdout] --> RustBook/structs_testing/src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let black = Color(0, 0, 0); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_black` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `origin` [INFO] [stdout] --> RustBook/structs_testing/src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let origin = Point(0, 0, 0); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `active`, `username`, `email`, and `sign_in_count` are never read [INFO] [stdout] --> RustBook/structs_testing/src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 7 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 9 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 10 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> RustBook/structs_testing/src/main.rs:16:14 [INFO] [stdout] | [INFO] [stdout] 16 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 16 | struct Color((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking advanced_closures_testing v0.1.0 (/opt/rustwide/workdir/RustBook/advanced_closures_testing) [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> RustBook/structs_testing/src/main.rs:17:14 [INFO] [stdout] | [INFO] [stdout] 17 | struct Point(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 17 | struct Point((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking basic_mathematical_operations v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/basic_mathematical_operations) [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_volume_of_cuboid` is never used [INFO] [stdout] --> Codewars/8kyu/volume_of_a_cuboid/src/lib.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn get_volume_of_cuboid(length: f32, width: f32, height: f32) -> f32 { [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] [stderr] Checking powers_of_2 v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/powers_of_2) [INFO] [stderr] Checking parse_nice_int_from_char_problem v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/parse_nice_int_from_char_problem) [INFO] [stdout] warning: unused variable: `list_of_statuses1` [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let list_of_statuses1: Vec = (0u32..20).map(Status::Value).collect(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_statuses2` [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let list_of_statuses2: Vec = (0u32..20).map(|x| Status::Value(x)).collect(); // same thing [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:13:11 [INFO] [stdout] | [INFO] [stdout] 13 | Value(u32), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 | Value(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Stop` is never constructed [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 13 | Value(u32), [INFO] [stdout] 14 | Stop, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_closure1` is never used [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn returns_closure1() -> Box i32> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_closure2` is never used [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn returns_closure2() -> fn(i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `hello` is never used [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | static hello: i32 = 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `hello` should have an upper case name [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | static hello: i32 = 1; [INFO] [stdout] | ^^^^^ help: convert the identifier to upper case: `HELLO` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `basic_op` is never used [INFO] [stdout] --> Codewars/8kyu/basic_mathematical_operations/src/lib.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn basic_op(operator: char, value1: i32, value2: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_volume_of_cuboid` is never used [INFO] [stdout] --> Codewars/8kyu/volume_of_a_cuboid/src/lib.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn get_volume_of_cuboid(length: f32, width: f32, height: f32) -> f32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_age` is never used [INFO] [stdout] --> Codewars/8kyu/parse_nice_int_from_char_problem/src/lib.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn get_age(age: &str) -> u32 { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking closures v0.1.0 (/opt/rustwide/workdir/RustBook/closures) [INFO] [stderr] Checking rectangles_area_method v0.1.0 (/opt/rustwide/workdir/RustBook/rectangles_area_method) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sort_and_star v0.1.0 (/opt/rustwide/workdir/Codewars/8kyu/sort_and_star) [INFO] [stdout] warning: unused variable: `list_of_statuses1` [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let list_of_statuses1: Vec = (0u32..20).map(Status::Value).collect(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking ownership_testing v0.1.0 (/opt/rustwide/workdir/RustBook/ownership_testing) [INFO] [stdout] warning: unused variable: `list_of_statuses2` [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let list_of_statuses2: Vec = (0u32..20).map(|x| Status::Value(x)).collect(); // same thing [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:13:11 [INFO] [stdout] | [INFO] [stdout] 13 | Value(u32), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 | Value(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Stop` is never constructed [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Status { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 13 | Value(u32), [INFO] [stdout] 14 | Stop, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_closure1` is never used [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn returns_closure1() -> Box i32> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_closure2` is never used [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn returns_closure2() -> fn(i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `hello` is never used [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | static hello: i32 = 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `hello` should have an upper case name [INFO] [stdout] --> RustBook/advanced_closures_testing/src/main.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | static hello: i32 = 1; [INFO] [stdout] | ^^^^^ help: convert the identifier to upper case: `HELLO` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `powers_of_two` is never used [INFO] [stdout] --> Codewars/8kyu/powers_of_2/src/lib.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn powers_of_two(n: u8) -> Vec { [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] [stderr] Checking loop_label v0.1.0 (/opt/rustwide/workdir/RustBook/loop_label) [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking hello v0.1.0 (/opt/rustwide/workdir/RustBook/hello) [INFO] [stdout] warning: unused import: `std::fmt::Display` [INFO] [stdout] --> RustBook/closures/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::Display; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `two_sort` is never used [INFO] [stdout] --> Codewars/8kyu/sort_and_star/src/lib.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn two_sort(arr: &[&str]) -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `two_sort2` is never used [INFO] [stdout] --> Codewars/8kyu/sort_and_star/src/lib.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn two_sort2(arr: &[&str]) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `printf` in this scope [INFO] [stdout] --> RustBook/closures/src/main.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 34 | / fn printf1(f: F, a: i32, b: i32) [INFO] [stdout] 35 | | where [INFO] [stdout] 36 | | F: FnOnce(i32, i32) -> i32, [INFO] [stdout] 37 | | { [INFO] [stdout] 38 | | println!("Result is {result}", result = f(a, b),) [INFO] [stdout] 39 | | } [INFO] [stdout] | |_____- similarly named function `printf1` defined here [INFO] [stdout] ... [INFO] [stdout] 92 | printf(function, 25, 10); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: you may have meant to use the `print` macro [INFO] [stdout] | [INFO] [stdout] 92 | print!(function, 25, 10); [INFO] [stdout] | ~~~~~~ [INFO] [stdout] help: a function with a similar name exists [INFO] [stdout] | [INFO] [stdout] 92 | printf1(function, 25, 10); [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking fahrenheit_to_celsius v0.1.0 (/opt/rustwide/workdir/RustBook/fahrenheit_to_celsius) [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stderr] Checking mystery_identity v0.1.0 (/opt/rustwide/workdir/RustBook/mystery_identity) [INFO] [stderr] Checking rectangles v0.1.0 (/opt/rustwide/workdir/RustBook/rectangles) [INFO] [stderr] error: could not compile `closures` (bin "closures" test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> RustBook/ownership_testing/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let num = num; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width` and `height` are never read [INFO] [stdout] --> RustBook/rectangles/src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Rect { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 3 | width: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rect` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] error[E0599]: no method named `clone` found for type parameter `T` in the current scope [INFO] [stdout] --> RustBook/mystery_identity/src/main.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 1 | fn mystery(x0: T) -> T { [INFO] [stdout] | - method `clone` not found for this type parameter [INFO] [stdout] 2 | let mut x1 = x0.clone(); [INFO] [stdout] | ^^^^^ method not found in `T` [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the type parameter is bounded by the trait [INFO] [stdout] help: the following trait defines an item `clone`, perhaps you need to restrict type parameter `T` with it: [INFO] [stdout] | [INFO] [stdout] 1 | fn mystery(x0: T) -> T { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mystery_identity` (bin "mystery_identity" test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "730916ed58f42d5aa152498e8b724aaa585120f3e5e66e3fbb25bb59f99af5af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "730916ed58f42d5aa152498e8b724aaa585120f3e5e66e3fbb25bb59f99af5af", kill_on_drop: false }` [INFO] [stdout] 730916ed58f42d5aa152498e8b724aaa585120f3e5e66e3fbb25bb59f99af5af