Dec 11 13:56:57.890 INFO checking mattrayner/learning-rust against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 13:56:57.890 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 13:56:58.268 INFO [stdout] d2a22cf608152fdc55da7795c871a3e21faafe368c828d85a2b0eee3136ae148
Dec 11 13:56:58.272 INFO running `"docker" "start" "-a" "d2a22cf608152fdc55da7795c871a3e21faafe368c828d85a2b0eee3136ae148"`
Dec 11 13:57:00.013 INFO [stderr] usermod: no changes
Dec 11 13:57:00.100 INFO [stderr]     Checking libc v0.2.38
Dec 11 13:57:01.428 INFO [stderr]     Checking rand v0.4.2
Dec 11 13:57:02.946 INFO [stderr]     Checking learning-rust v0.1.0 (/source)
Dec 11 13:57:04.533 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.49s
Dec 11 13:57:04.536 INFO [stderr] su: No module specific data is present
Dec 11 13:57:05.970 INFO running `"docker" "inspect" "d2a22cf608152fdc55da7795c871a3e21faafe368c828d85a2b0eee3136ae148"`
Dec 11 13:57:06.334 INFO running `"docker" "rm" "-f" "d2a22cf608152fdc55da7795c871a3e21faafe368c828d85a2b0eee3136ae148"`
Dec 11 13:57:06.828 INFO [stdout] d2a22cf608152fdc55da7795c871a3e21faafe368c828d85a2b0eee3136ae148