[INFO] cloning repository https://github.com/bowmanjd/rust-codewars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bowmanjd/rust-codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbowmanjd%2Frust-codewars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbowmanjd%2Frust-codewars'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c82c131dead8c3321c33197ac7f058464a334a13
[INFO] testing bowmanjd/rust-codewars against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbowmanjd%2Frust-codewars" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bowmanjd/rust-codewars on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bowmanjd/rust-codewars
[INFO] finished tweaking git repo https://github.com/bowmanjd/rust-codewars
[INFO] tweaked toml for git repo https://github.com/bowmanjd/rust-codewars written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bowmanjd/rust-codewars already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b626a09d10c21a0349481117d6ce7724e1de5050b3797ba078edb24f234425c1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b626a09d10c21a0349481117d6ce7724e1de5050b3797ba078edb24f234425c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b626a09d10c21a0349481117d6ce7724e1de5050b3797ba078edb24f234425c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b626a09d10c21a0349481117d6ce7724e1de5050b3797ba078edb24f234425c1", kill_on_drop: false }`
[INFO] [stdout] b626a09d10c21a0349481117d6ce7724e1de5050b3797ba078edb24f234425c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faccef36ba0d4c6e1a81a2d21f4cf1be05fe8a8dd6cbdf67b03d07729b7f9539
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "faccef36ba0d4c6e1a81a2d21f4cf1be05fe8a8dd6cbdf67b03d07729b7f9539", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rust-codewars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `MorseDecoder`
[INFO] [stdout]  --> src/morse_code.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct MorseDecoder {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/morse_code.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new() -> MorseDecoder {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decode_morse`
[INFO] [stdout]   --> src/morse_code.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn decode_morse(&self, encoded: &str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/string_endswith.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn solution(word: &str, ending: &str) -> bool {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/string_segmentation.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn solution(s: &str) -> Vec<String> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `Command { std: "docker" "inspect" "faccef36ba0d4c6e1a81a2d21f4cf1be05fe8a8dd6cbdf67b03d07729b7f9539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faccef36ba0d4c6e1a81a2d21f4cf1be05fe8a8dd6cbdf67b03d07729b7f9539", kill_on_drop: false }`
[INFO] [stdout] faccef36ba0d4c6e1a81a2d21f4cf1be05fe8a8dd6cbdf67b03d07729b7f9539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fed49da31799b45148b41fd7203ca7566c5dd35c2569b64c5f837b62cff2f32
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7fed49da31799b45148b41fd7203ca7566c5dd35c2569b64c5f837b62cff2f32", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-codewars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "7fed49da31799b45148b41fd7203ca7566c5dd35c2569b64c5f837b62cff2f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fed49da31799b45148b41fd7203ca7566c5dd35c2569b64c5f837b62cff2f32", kill_on_drop: false }`
[INFO] [stdout] 7fed49da31799b45148b41fd7203ca7566c5dd35c2569b64c5f837b62cff2f32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 61f8e0d7cea83aff264625380733ff06c6b6846a67c141610121f35295eab668
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "61f8e0d7cea83aff264625380733ff06c6b6846a67c141610121f35295eab668", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_codewars-6c84a222dd232eea)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test morse_code::tests::test00_hey_jude ... ok
[INFO] [stdout] test morse_code::tests::test01_basic ... ok
[INFO] [stdout] test string_endswith::tests::returns_expected ... ok
[INFO] [stdout] test morse_code::tests::test03_complex ... ok
[INFO] [stdout] test morse_code::tests::test02_extra_space ... ok
[INFO] [stdout] test string_segmentation::tests::basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "61f8e0d7cea83aff264625380733ff06c6b6846a67c141610121f35295eab668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61f8e0d7cea83aff264625380733ff06c6b6846a67c141610121f35295eab668", kill_on_drop: false }`
[INFO] [stdout] 61f8e0d7cea83aff264625380733ff06c6b6846a67c141610121f35295eab668