Dec 11 15:21:39.455 INFO checking koba-e964/rust-number-theory against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 15:21:39.455 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 15:21:39.675 INFO [stdout] fa11198f282327557c6dccd86679fcad51297c03861d89334de2d85aadc4aba8
Dec 11 15:21:39.680 INFO running `"docker" "start" "-a" "fa11198f282327557c6dccd86679fcad51297c03861d89334de2d85aadc4aba8"`
Dec 11 15:21:40.131 INFO [stderr] usermod: no changes
Dec 11 15:21:40.188 INFO [stderr]     Checking num-complex v0.2.1
Dec 11 15:21:40.188 INFO [stderr]     Checking num-bigint v0.2.1
Dec 11 15:21:42.368 INFO [stderr]     Checking num-rational v0.2.1
Dec 11 15:21:43.232 INFO [stderr]     Checking num v0.2.0
Dec 11 15:21:43.650 INFO [stderr]     Checking rust-number-theory v0.1.0 (/source)
Dec 11 15:21:44.436 INFO [stderr] warning: unused import: `BigInt`
Dec 11 15:21:44.437 INFO [stderr]  --> src/determinant.rs:3:11
Dec 11 15:21:44.437 INFO [stderr]   |
Dec 11 15:21:44.437 INFO [stderr] 3 | use num::{BigInt, BigRational, One, Zero};
Dec 11 15:21:44.437 INFO [stderr]   |           ^^^^^^
Dec 11 15:21:44.437 INFO [stderr]   |
Dec 11 15:21:44.438 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 15:21:44.438 INFO [stderr] 
Dec 11 15:21:44.595 INFO [stderr] warning: unused import: `num::BigInt`
Dec 11 15:21:44.596 INFO [stderr]    --> src/algebraic.rs:137:9
Dec 11 15:21:44.596 INFO [stderr]     |
Dec 11 15:21:44.596 INFO [stderr] 137 |     use num::BigInt;
Dec 11 15:21:44.596 INFO [stderr]     |         ^^^^^^^^^^^
Dec 11 15:21:44.597 INFO [stderr]     |
Dec 11 15:21:44.597 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 11 15:21:44.597 INFO [stderr] 
Dec 11 15:21:44.597 INFO [stderr] warning: unused import: `BigInt`
Dec 11 15:21:44.598 INFO [stderr]  --> src/determinant.rs:3:11
Dec 11 15:21:44.598 INFO [stderr]   |
Dec 11 15:21:44.598 INFO [stderr] 3 | use num::{BigInt, BigRational, One, Zero};
Dec 11 15:21:44.599 INFO [stderr]   |           ^^^^^^
Dec 11 15:21:44.599 INFO [stderr] 
Dec 11 15:21:44.599 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 15:21:44.599 INFO [stderr]   --> src/determinant.rs:46:9
Dec 11 15:21:44.599 INFO [stderr]    |
Dec 11 15:21:44.600 INFO [stderr] 46 |         /// det((2, -1; 5, -4)) = -3
Dec 11 15:21:44.600 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:21:44.600 INFO [stderr]    |
Dec 11 15:21:44.600 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 11 15:21:44.601 INFO [stderr] 
Dec 11 15:21:44.601 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 15:21:44.601 INFO [stderr]   --> src/determinant.rs:53:9
Dec 11 15:21:44.601 INFO [stderr]    |
Dec 11 15:21:44.602 INFO [stderr] 53 |         /// det((3, 2, 1; -1, 2, 2; -2, -3, 2)) = 33
Dec 11 15:21:44.602 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 15:21:44.602 INFO [stderr] 
Dec 11 15:21:45.246 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.10s
Dec 11 15:21:45.249 INFO [stderr] su: No module specific data is present
Dec 11 15:21:45.869 INFO running `"docker" "inspect" "fa11198f282327557c6dccd86679fcad51297c03861d89334de2d85aadc4aba8"`
Dec 11 15:21:46.206 INFO running `"docker" "rm" "-f" "fa11198f282327557c6dccd86679fcad51297c03861d89334de2d85aadc4aba8"`
Dec 11 15:21:46.508 INFO [stdout] fa11198f282327557c6dccd86679fcad51297c03861d89334de2d85aadc4aba8