[INFO] cloning repository https://github.com/hasanhaja/codewars-katas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hasanhaja/codewars-katas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhasanhaja%2Fcodewars-katas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhasanhaja%2Fcodewars-katas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 947ffe42a4963b72fe51fbb687bdd04c2937f83b
[INFO] checking hasanhaja/codewars-katas against master#9d28fe39763974a96d61232e96ac856735e4cdd6 for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhasanhaja%2Fcodewars-katas" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hasanhaja/codewars-katas on toolchain 9d28fe39763974a96d61232e96ac856735e4cdd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hasanhaja/codewars-katas
[INFO] finished tweaking git repo https://github.com/hasanhaja/codewars-katas
[INFO] tweaked toml for git repo https://github.com/hasanhaja/codewars-katas written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hasanhaja/codewars-katas 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" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb3f15a97525f2b5557ee36a8158c36fab81ae555e8f2ba3b8ad1ea005d10561
[INFO] running `Command { std: "docker" "start" "-a" "eb3f15a97525f2b5557ee36a8158c36fab81ae555e8f2ba3b8ad1ea005d10561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb3f15a97525f2b5557ee36a8158c36fab81ae555e8f2ba3b8ad1ea005d10561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3f15a97525f2b5557ee36a8158c36fab81ae555e8f2ba3b8ad1ea005d10561", kill_on_drop: false }`
[INFO] [stdout] eb3f15a97525f2b5557ee36a8158c36fab81ae555e8f2ba3b8ad1ea005d10561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4a0331db72bfb3b15743d97e86b7702d71ada9afe84313d61dece4d1c20bd4d
[INFO] running `Command { std: "docker" "start" "-a" "a4a0331db72bfb3b15743d97e86b7702d71ada9afe84313d61dece4d1c20bd4d", kill_on_drop: false }`
[INFO] [stderr]     Checking codewars-katas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/common_denominator/mod.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     todo!("Sort the vector by the denominator");
[INFO] [stdout]    |     ------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 50 |
[INFO] [stdout] 51 |     Vec::new()
[INFO] [stdout]    |     ^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/common_denominator/mod.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     todo!("Sort the vector by the denominator");
[INFO] [stdout]    |     ------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 50 |
[INFO] [stdout] 51 |     Vec::new()
[INFO] [stdout]    |     ^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list_of_fracs`
[INFO] [stdout]   --> src/common_denominator/mod.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let list_of_fracs: Vec<Fraction> = l.iter().map(|frac| Fraction::new(*frac)).collect();
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_fracs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list_of_fracs`
[INFO] [stdout]   --> src/common_denominator/mod.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let list_of_fracs: Vec<Fraction> = l.iter().map(|frac| Fraction::new(*frac)).collect();
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_fracs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Fraction` is never constructed
[INFO] [stdout]   --> src/common_denominator/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Fraction {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `value` are never used
[INFO] [stdout]   --> src/common_denominator/mod.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Fraction {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 31 |     pub fn new(frac: (i64, i64)) -> Fraction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn value(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_fracts` is never used
[INFO] [stdout]   --> src/common_denominator/mod.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn convert_fracts(l: Vec<(i64, i64)>) -> Vec<(i64, i64)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quicksort` is never used
[INFO] [stdout]   --> src/common_denominator/mod.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn quicksort(nums: &mut Vec<i64>, low: usize, high: usize) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partition` is never used
[INFO] [stdout]   --> src/common_denominator/mod.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn partition(nums: &mut Vec<i64>, low: usize, high: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap` is never used
[INFO] [stdout]   --> src/common_denominator/mod.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn swap(arr: &mut Vec<i64>, i: usize, j: usize) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "a4a0331db72bfb3b15743d97e86b7702d71ada9afe84313d61dece4d1c20bd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4a0331db72bfb3b15743d97e86b7702d71ada9afe84313d61dece4d1c20bd4d", kill_on_drop: false }`
[INFO] [stdout] a4a0331db72bfb3b15743d97e86b7702d71ada9afe84313d61dece4d1c20bd4d