Dec 12 00:31:45.943 INFO checking RustStudy/mandelbrot against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 00:31:45.943 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 12 00:31:46.111 INFO [stdout] 638e009ab9d0abbd94366d781efdc4aded263b90ec3fd6ac3ecf0554589d54a1
Dec 12 00:31:46.114 INFO running `"docker" "start" "-a" "638e009ab9d0abbd94366d781efdc4aded263b90ec3fd6ac3ecf0554589d54a1"`
Dec 12 00:31:46.565 INFO [stderr] usermod: no changes
Dec 12 00:31:46.676 INFO [stderr]     Checking num-bigint v0.1.39
Dec 12 00:31:46.676 INFO [stderr]     Checking png v0.7.0
Dec 12 00:31:47.713 INFO [stderr]     Checking num-rational v0.1.38
Dec 12 00:31:48.507 INFO [stderr]     Checking num v0.1.39
Dec 12 00:31:48.507 INFO [stderr]     Checking image v0.13.0
Dec 12 00:31:52.646 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Dec 12 00:31:54.211 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.62s
Dec 12 00:31:54.215 INFO [stderr] su: No module specific data is present
Dec 12 00:31:54.559 INFO running `"docker" "inspect" "638e009ab9d0abbd94366d781efdc4aded263b90ec3fd6ac3ecf0554589d54a1"`
Dec 12 00:31:54.829 INFO running `"docker" "rm" "-f" "638e009ab9d0abbd94366d781efdc4aded263b90ec3fd6ac3ecf0554589d54a1"`
Dec 12 00:31:54.928 INFO [stdout] 638e009ab9d0abbd94366d781efdc4aded263b90ec3fd6ac3ecf0554589d54a1