[INFO] cloning repository https://github.com/deqqwx/practice13
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deqqwx/practice13" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeqqwx%2Fpractice13", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeqqwx%2Fpractice13'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4662378142a7cabfc43ea8495bdc6b2e683f67bd
[INFO] checking deqqwx/practice13 against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeqqwx%2Fpractice13" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-3-tc2/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[INFO] checking deqqwx/practice13 against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeqqwx%2Fpractice13" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/deqqwx/practice13
[INFO] finished tweaking git repo https://github.com/deqqwx/practice13
[INFO] tweaked toml for git repo https://github.com/deqqwx/practice13 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/deqqwx/practice13 on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/deqqwx/practice13 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99e4140659eb8b2f82e49d7193e922d87d7a3f6729ec89c3ab073daabbeb977a
[INFO] running `Command { std: "docker" "start" "-a" "99e4140659eb8b2f82e49d7193e922d87d7a3f6729ec89c3ab073daabbeb977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99e4140659eb8b2f82e49d7193e922d87d7a3f6729ec89c3ab073daabbeb977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e4140659eb8b2f82e49d7193e922d87d7a3f6729ec89c3ab073daabbeb977a", kill_on_drop: false }`
[INFO] [stdout] 99e4140659eb8b2f82e49d7193e922d87d7a3f6729ec89c3ab073daabbeb977a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a01cbbe980c044e143775f9c8d4725143f8e8f0e5d16e4863bef9ef58a74f6a
[INFO] running `Command { std: "docker" "start" "-a" "5a01cbbe980c044e143775f9c8d4725143f8e8f0e5d16e4863bef9ef58a74f6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.2
[INFO] [stderr]     Checking rand v0.9.0-alpha.2
[INFO] [stderr]     Checking practice13 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `count_permutation` is never used
[INFO] [stdout]  --> src/practice13.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn count_permutation(shipments: &Vec<u32>) -> Option<usize> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_shipments` is never used
[INFO] [stdout]   --> src/practice13.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn gen_shipments(n: usize) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "5a01cbbe980c044e143775f9c8d4725143f8e8f0e5d16e4863bef9ef58a74f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a01cbbe980c044e143775f9c8d4725143f8e8f0e5d16e4863bef9ef58a74f6a", kill_on_drop: false }`
[INFO] [stdout] 5a01cbbe980c044e143775f9c8d4725143f8e8f0e5d16e4863bef9ef58a74f6a