[INFO] cloning repository https://github.com/eklein09/ctci_rust_lesson1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eklein09/ctci_rust_lesson1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feklein09%2Fctci_rust_lesson1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feklein09%2Fctci_rust_lesson1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25b85aa2949e43c42ca0f2c3d9ffd01ebb3e25c4
[INFO] testing eklein09/ctci_rust_lesson1 against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feklein09%2Fctci_rust_lesson1" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eklein09/ctci_rust_lesson1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eklein09/ctci_rust_lesson1
[INFO] finished tweaking git repo https://github.com/eklein09/ctci_rust_lesson1
[INFO] tweaked toml for git repo https://github.com/eklein09/ctci_rust_lesson1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/eklein09/ctci_rust_lesson1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded counter v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c79b3bedc55f3ffbbffc5db61ccbd258275b9a84a8e2a08fbce053c60e9c5b0
[INFO] running `Command { std: "docker" "start" "-a" "3c79b3bedc55f3ffbbffc5db61ccbd258275b9a84a8e2a08fbce053c60e9c5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c79b3bedc55f3ffbbffc5db61ccbd258275b9a84a8e2a08fbce053c60e9c5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c79b3bedc55f3ffbbffc5db61ccbd258275b9a84a8e2a08fbce053c60e9c5b0", kill_on_drop: false }`
[INFO] [stdout] 3c79b3bedc55f3ffbbffc5db61ccbd258275b9a84a8e2a08fbce053c60e9c5b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20685ee5acc41eb37bbbf8cd5633bc643d0db55b4a91a0f4c75e4df2eb2a0a63
[INFO] running `Command { std: "docker" "start" "-a" "20685ee5acc41eb37bbbf8cd5633bc643d0db55b4a91a0f4c75e4df2eb2a0a63", kill_on_drop: false }`
[INFO] [stderr]    Compiling counter v0.5.2
[INFO] [stderr]    Compiling lesson1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `string_compression`
[INFO] [stdout]  --> src/compression.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn string_compression(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `urlify`
[INFO] [stdout]  --> src/urlify.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn urlify(a: &str) -> String {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `common_prefix`
[INFO] [stdout]  --> src/common_prefix.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn common_prefix(a: String, b: String) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `longest_common_prefix`
[INFO] [stdout]   --> src/common_prefix.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn longest_common_prefix(strs: Vec<String>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_unique`
[INFO] [stdout]   --> src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn is_unique(s: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_anagram`
[INFO] [stdout]   --> src/main.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn is_anagram(a: &str, b: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "20685ee5acc41eb37bbbf8cd5633bc643d0db55b4a91a0f4c75e4df2eb2a0a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20685ee5acc41eb37bbbf8cd5633bc643d0db55b4a91a0f4c75e4df2eb2a0a63", kill_on_drop: false }`
[INFO] [stdout] 20685ee5acc41eb37bbbf8cd5633bc643d0db55b4a91a0f4c75e4df2eb2a0a63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14e66af5773a89d18eecbb8b5276a426bc29509d583103534248f8e2558a52a4
[INFO] running `Command { std: "docker" "start" "-a" "14e66af5773a89d18eecbb8b5276a426bc29509d583103534248f8e2558a52a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling lesson1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "14e66af5773a89d18eecbb8b5276a426bc29509d583103534248f8e2558a52a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e66af5773a89d18eecbb8b5276a426bc29509d583103534248f8e2558a52a4", kill_on_drop: false }`
[INFO] [stdout] 14e66af5773a89d18eecbb8b5276a426bc29509d583103534248f8e2558a52a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 692c73ccfb4b656d093411b398d557cc15b2694bbac48614123b3a9374982f62
[INFO] running `Command { std: "docker" "start" "-a" "692c73ccfb4b656d093411b398d557cc15b2694bbac48614123b3a9374982f62", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 10 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lesson1-637bded905cc2950)
[INFO] [stdout] test common_prefix::tests::test1 ... ok
[INFO] [stdout] test urlify::tests::urlify_john_smith ... ok
[INFO] [stdout] test compression::tests::test_compression ... ok
[INFO] [stdout] test compression::tests::test_compression2 ... ok
[INFO] [stdout] test tests::test_duplicate ... ok
[INFO] [stdout] test common_prefix::tests::test2 ... ok
[INFO] [stdout] test tests::anagram_false ... ok
[INFO] [stdout] test compression::tests::test_compression3 ... ok
[INFO] [stdout] test tests::test_unique ... ok
[INFO] [stdout] test tests::anagram_true ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "692c73ccfb4b656d093411b398d557cc15b2694bbac48614123b3a9374982f62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "692c73ccfb4b656d093411b398d557cc15b2694bbac48614123b3a9374982f62", kill_on_drop: false }`
[INFO] [stdout] 692c73ccfb4b656d093411b398d557cc15b2694bbac48614123b3a9374982f62