Oct 12 17:23:42.182 INFO checking milesand/calculator-the-solver against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 17:23:42.183 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 17:23:42.357 INFO blam! b02fac69cf774caee98678f0260ce7609d84c902e2ebdf512c7cdd06c8a9c25f
Oct 12 17:23:42.360 INFO running `"docker" "start" "-a" "b02fac69cf774caee98678f0260ce7609d84c902e2ebdf512c7cdd06c8a9c25f"`
Oct 12 17:23:42.992 INFO kablam! usermod: no changes
Oct 12 17:23:43.120 INFO kablam!     Checking rand v0.4.2
Oct 12 17:23:43.120 INFO kablam!     Checking num-complex v0.1.41
Oct 12 17:23:45.584 INFO kablam!     Checking rand v0.3.22
Oct 12 17:23:46.196 INFO kablam!     Checking num-bigint v0.1.41
Oct 12 17:23:48.307 INFO kablam!     Checking num-rational v0.1.41
Oct 12 17:23:49.290 INFO kablam!     Checking num v0.1.41
Oct 12 17:23:49.782 INFO kablam!     Checking calculator-the-solver v0.0.1 (/source)
Oct 12 17:23:51.164 INFO kablam! warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Oct 12 17:23:51.164 INFO kablam!  --> src/lib.rs:1:12
Oct 12 17:23:51.164 INFO kablam!   |
Oct 12 17:23:51.164 INFO kablam! 1 | #![feature(option_filter)]
Oct 12 17:23:51.164 INFO kablam!   |            ^^^^^^^^^^^^^
Oct 12 17:23:51.164 INFO kablam!   |
Oct 12 17:23:51.164 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 12 17:23:51.164 INFO kablam! 
Oct 12 17:23:51.304 INFO kablam! warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Oct 12 17:23:51.304 INFO kablam!  --> src/lib.rs:1:12
Oct 12 17:23:51.304 INFO kablam!   |
Oct 12 17:23:51.304 INFO kablam! 1 | #![feature(option_filter)]
Oct 12 17:23:51.304 INFO kablam!   |            ^^^^^^^^^^^^^
Oct 12 17:23:51.304 INFO kablam!   |
Oct 12 17:23:51.304 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 12 17:23:51.304 INFO kablam! 
Oct 12 17:23:52.404 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.38s
Oct 12 17:23:52.408 INFO kablam! su: No module specific data is present
Oct 12 17:23:53.056 INFO running `"docker" "rm" "-f" "b02fac69cf774caee98678f0260ce7609d84c902e2ebdf512c7cdd06c8a9c25f"`
Oct 12 17:23:53.444 INFO blam! b02fac69cf774caee98678f0260ce7609d84c902e2ebdf512c7cdd06c8a9c25f