Dec 04 19:34:09.497 INFO checking droundy/rust-student-pairs against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 19:34:09.497 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 19:34:09.962 INFO [stdout] 5f9277d248eebcea953bf9259f86472e7a89a284d56108d0ea56bafc32346dc3
Dec 04 19:34:09.968 INFO running `"docker" "start" "-a" "5f9277d248eebcea953bf9259f86472e7a89a284d56108d0ea56bafc32346dc3"`
Dec 04 19:34:11.757 INFO [stderr] usermod: no changes
Dec 04 19:34:12.108 INFO [stderr]    Compiling memchr v2.0.2
Dec 04 19:34:12.108 INFO [stderr]     Checking thread-id v3.3.0
Dec 04 19:34:12.108 INFO [stderr]     Checking filetime v0.1.15
Dec 04 19:34:12.121 INFO [stderr]     Checking base64 v0.7.0
Dec 04 19:34:12.124 INFO [stderr]     Checking tinyset v0.2.2
Dec 04 19:34:12.125 INFO [stderr]    Compiling serde v1.0.75
Dec 04 19:34:12.135 INFO [stderr]     Checking serde_yaml v0.7.5
Dec 04 19:34:13.977 INFO [stderr]     Checking brotli-sys v0.2.1
Dec 04 19:34:14.077 INFO [stderr]     Checking thread_local v0.3.3
Dec 04 19:34:14.675 INFO [stderr]     Checking chrono v0.4.6
Dec 04 19:34:15.039 INFO [stderr]     Checking url v0.2.38
Dec 04 19:34:15.679 INFO [stderr]     Checking twoway v0.1.8
Dec 04 19:34:15.811 INFO [stderr]     Checking brotli2 v0.2.2
Dec 04 19:34:17.519 INFO [stderr]     Checking askama_shared v0.7.1
Dec 04 19:34:18.743 INFO [stderr]    Compiling nom v4.0.0
Dec 04 19:34:19.139 INFO [stderr]     Checking chrono v0.2.25
Dec 04 19:34:21.475 INFO [stderr]     Checking state v0.4.1
Dec 04 19:34:21.939 INFO [stderr]     Checking deflate v0.7.18
Dec 04 19:34:22.580 INFO [stderr]     Checking multipart v0.13.6
Dec 04 19:34:24.607 INFO [stderr]     Checking internment v0.3.6
Dec 04 19:34:28.087 INFO [stderr]     Checking tiny_http v0.5.9
Dec 04 19:34:33.291 INFO [stderr]     Checking rouille v2.1.0
Dec 04 19:34:42.811 INFO [stderr]    Compiling toml v0.4.6
Dec 04 19:34:50.903 INFO [stderr]    Compiling askama_derive v0.7.1
Dec 04 19:35:02.513 INFO [stderr]    Compiling askama v0.7.1
Dec 04 19:35:04.189 INFO [stderr]    Compiling rust-student-pairs v0.1.0 (/source)
Dec 04 19:35:12.834 INFO [stderr] warning: unused `#[macro_use]` import
Dec 04 19:35:12.834 INFO [stderr]  --> src/main.rs:3:1
Dec 04 19:35:12.834 INFO [stderr]   |
Dec 04 19:35:12.834 INFO [stderr] 3 | #[macro_use]
Dec 04 19:35:12.834 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 19:35:12.834 INFO [stderr]   |
Dec 04 19:35:12.834 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 19:35:12.834 INFO [stderr] 
Dec 04 19:35:13.210 INFO [stderr] warning: unused `#[macro_use]` import
Dec 04 19:35:13.210 INFO [stderr]  --> src/main.rs:3:1
Dec 04 19:35:13.211 INFO [stderr]   |
Dec 04 19:35:13.211 INFO [stderr] 3 | #[macro_use]
Dec 04 19:35:13.211 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 19:35:13.215 INFO [stderr]   |
Dec 04 19:35:13.215 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 19:35:13.215 INFO [stderr] 
Dec 04 19:35:17.551 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
Dec 04 19:35:17.571 INFO [stderr] su: No module specific data is present
Dec 04 19:35:18.422 INFO running `"docker" "inspect" "5f9277d248eebcea953bf9259f86472e7a89a284d56108d0ea56bafc32346dc3"`
Dec 04 19:35:18.839 INFO running `"docker" "rm" "-f" "5f9277d248eebcea953bf9259f86472e7a89a284d56108d0ea56bafc32346dc3"`
Dec 04 19:35:19.167 INFO [stdout] 5f9277d248eebcea953bf9259f86472e7a89a284d56108d0ea56bafc32346dc3