Dec 06 21:00:08.733 INFO testing symbolics_calculus-0.1.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 21:00:08.733 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 21:00:09.017 INFO [stdout] b60072d32bf6dafd13f0c564aa0212f7f28122ae030d44a84e946ff8568d9e7d
Dec 06 21:00:09.020 INFO running `"docker" "start" "-a" "b60072d32bf6dafd13f0c564aa0212f7f28122ae030d44a84e946ff8568d9e7d"`
Dec 06 21:00:09.820 INFO [stderr] usermod: no changes
Dec 06 21:00:09.861 INFO [stderr]    Compiling symbolics_core v0.1.2
Dec 06 21:00:10.455 INFO [stderr]    Compiling symbolics_calculus v0.1.0 (/source)
Dec 06 21:00:10.724 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 21:00:10.724 INFO [stderr]  --> src/lib.rs:1:1
Dec 06 21:00:10.724 INFO [stderr]   |
Dec 06 21:00:10.724 INFO [stderr] 1 | #[macro_use]
Dec 06 21:00:10.724 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 21:00:10.724 INFO [stderr]   |
Dec 06 21:00:10.724 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 21:00:10.724 INFO [stderr] 
Dec 06 21:00:10.974 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 06 21:00:10.977 INFO [stderr] su: No module specific data is present
Dec 06 21:00:11.432 INFO running `"docker" "inspect" "b60072d32bf6dafd13f0c564aa0212f7f28122ae030d44a84e946ff8568d9e7d"`
Dec 06 21:00:11.606 INFO running `"docker" "rm" "-f" "b60072d32bf6dafd13f0c564aa0212f7f28122ae030d44a84e946ff8568d9e7d"`
Dec 06 21:00:11.812 INFO [stdout] b60072d32bf6dafd13f0c564aa0212f7f28122ae030d44a84e946ff8568d9e7d
Dec 06 21:00:11.818 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 21:00:12.101 INFO [stdout] 7a0054b3d9d0c4c1a4af974388365a4fda68a5ffbb068df1b879f9b7c606f734
Dec 06 21:00:12.106 INFO running `"docker" "start" "-a" "7a0054b3d9d0c4c1a4af974388365a4fda68a5ffbb068df1b879f9b7c606f734"`
Dec 06 21:00:12.681 INFO [stderr] usermod: no changes
Dec 06 21:00:12.715 INFO [stderr]    Compiling symbolics_calculus v0.1.0 (/source)
Dec 06 21:00:13.534 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 06 21:00:13.537 INFO [stderr] su: No module specific data is present
Dec 06 21:00:13.797 INFO running `"docker" "inspect" "7a0054b3d9d0c4c1a4af974388365a4fda68a5ffbb068df1b879f9b7c606f734"`
Dec 06 21:00:13.886 INFO running `"docker" "rm" "-f" "7a0054b3d9d0c4c1a4af974388365a4fda68a5ffbb068df1b879f9b7c606f734"`
Dec 06 21:00:13.965 INFO [stdout] 7a0054b3d9d0c4c1a4af974388365a4fda68a5ffbb068df1b879f9b7c606f734