[INFO] cloning repository https://github.com/idebugger-learning/advent-of-code-2018-day4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/idebugger-learning/advent-of-code-2018-day4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidebugger-learning%2Fadvent-of-code-2018-day4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidebugger-learning%2Fadvent-of-code-2018-day4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38a00dc4506728442d236205da1e315c7e11a8eb
[INFO] checking idebugger-learning/advent-of-code-2018-day4 against master#a9e7b30487235621751cc628f170c0f15fb215c4 for pr-136539
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidebugger-learning%2Fadvent-of-code-2018-day4" "/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/idebugger-learning/advent-of-code-2018-day4 on toolchain a9e7b30487235621751cc628f170c0f15fb215c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/idebugger-learning/advent-of-code-2018-day4
[INFO] finished tweaking git repo https://github.com/idebugger-learning/advent-of-code-2018-day4
[INFO] tweaked toml for git repo https://github.com/idebugger-learning/advent-of-code-2018-day4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/idebugger-learning/advent-of-code-2018-day4 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" "+a9e7b30487235621751cc628f170c0f15fb215c4" "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-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ce61462612f694ddf52bbe013f459b660a52dc3de92810aba6adfed62a6df9c
[INFO] running `Command { std: "docker" "start" "-a" "1ce61462612f694ddf52bbe013f459b660a52dc3de92810aba6adfed62a6df9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ce61462612f694ddf52bbe013f459b660a52dc3de92810aba6adfed62a6df9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce61462612f694ddf52bbe013f459b660a52dc3de92810aba6adfed62a6df9c", kill_on_drop: false }`
[INFO] [stdout] 1ce61462612f694ddf52bbe013f459b660a52dc3de92810aba6adfed62a6df9c
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7eb63d6b5487d248c14b57f1438f66273bee5984d1f1c14a7bc73a0102c4c5c
[INFO] running `Command { std: "docker" "start" "-a" "f7eb63d6b5487d248c14b57f1438f66273bee5984d1f1c14a7bc73a0102c4c5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking day4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&NaiveDate` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:99:80
[INFO] [stdout]    |
[INFO] [stdout] 99 |     for (date, schedule) in calendar.into_iter().sorted_by_key(|(date, _)| date.clone()) {
[INFO] [stdout]    |                                                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&NaiveDate` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:99:80
[INFO] [stdout]    |
[INFO] [stdout] 99 |     for (date, schedule) in calendar.into_iter().sorted_by_key(|(date, _)| date.clone()) {
[INFO] [stdout]    |                                                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.13s
[INFO] running `Command { std: "docker" "inspect" "f7eb63d6b5487d248c14b57f1438f66273bee5984d1f1c14a7bc73a0102c4c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7eb63d6b5487d248c14b57f1438f66273bee5984d1f1c14a7bc73a0102c4c5c", kill_on_drop: false }`
[INFO] [stdout] f7eb63d6b5487d248c14b57f1438f66273bee5984d1f1c14a7bc73a0102c4c5c