Sep 10 06:52:12.325 INFO checking verilated-0.1.1 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 06:52:12.325 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 06:52:12.325 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-3/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 06:52:12.520 INFO blam! 883a71af5e8065cd052e9ae27d9ed79fc1eecf0c4e939988627ba986b7eeb008
Sep 10 06:52:12.522 INFO running `"docker" "start" "-a" "883a71af5e8065cd052e9ae27d9ed79fc1eecf0c4e939988627ba986b7eeb008"`
Sep 10 06:52:13.123 INFO kablam! usermod: no changes
Sep 10 06:52:13.143 INFO kablam!    Compiling verilator v0.1.1
Sep 10 06:52:13.499 INFO kablam!    Compiling verilated v0.1.1 (file:///source)
Sep 10 06:52:14.015 INFO kablam! error: failed to run custom build command for `verilated v0.1.1 (file:///source)`
Sep 10 06:52:14.015 INFO kablam! process didn't exit successfully: `/target/debug/build/verilated-7cd283af5c6b4b46/build-script-build` (exit code: 101)
Sep 10 06:52:14.015 INFO kablam! --- stderr
Sep 10 06:52:14.015 INFO kablam! thread 'main' panicked at '
Sep 10 06:52:14.015 INFO kablam! Failed to find `${VERILATOR_ROOT}`.  Please set `VERILATOR_ROOT` environment variable or ensure `verilator` is in `PATH`.
Sep 10 06:52:14.015 INFO kablam! 
Sep 10 06:52:14.015 INFO kablam! build script failed, must exit now', build.rs:16:5
Sep 10 06:52:14.015 INFO kablam! stack backtrace:
Sep 10 06:52:14.016 INFO kablam!    0:     0x55b7b4e3bc7e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hd1ddf909c3007e6f
Sep 10 06:52:14.016 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 10 06:52:14.016 INFO kablam!    1:     0x55b7b4e2bbf6 - std::sys_common::backtrace::print::h8af87ee7033cea48
Sep 10 06:52:14.016 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 10 06:52:14.016 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 10 06:52:14.016 INFO kablam!    2:     0x55b7b4e29f8d - std::panicking::default_hook::{{closure}}::hb070ea60f8cf9536
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panicking.rs:211
Sep 10 06:52:14.016 INFO kablam!    3:     0x55b7b4e29d00 - std::panicking::default_hook::h108b3d1da16fc0ff
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panicking.rs:227
Sep 10 06:52:14.016 INFO kablam!    4:     0x55b7b4e2a5fc - std::panicking::rust_panic_with_hook::he22c3c9d0a2321e8
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panicking.rs:477
Sep 10 06:52:14.016 INFO kablam!    5:     0x55b7b4e2a1f9 - std::panicking::continue_panic_fmt::h4cfdbf744ac7dbe3
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panicking.rs:391
Sep 10 06:52:14.016 INFO kablam!    6:     0x55b7b4e2a15d - std::panicking::begin_panic_fmt::h7fdbb213af5a8e37
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panicking.rs:346
Sep 10 06:52:14.016 INFO kablam!    7:     0x55b7b4db3ea1 - build_script_build::fail::hbfbe2a6d3d4ff81f
Sep 10 06:52:14.016 INFO kablam!                                at /source/build.rs:16
Sep 10 06:52:14.016 INFO kablam!    8:     0x55b7b4db3f2b - build_script_build::main::h0d2d8a671ee4b2d3
Sep 10 06:52:14.016 INFO kablam!                                at /source/build.rs:71
Sep 10 06:52:14.016 INFO kablam!    9:     0x55b7b4db58af - std::rt::lang_start::{{closure}}::h712b66f81cab147b
Sep 10 06:52:14.016 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 10 06:52:14.016 INFO kablam!   10:     0x55b7b4e2a092 - std::panicking::try::do_call::hd17f7bbbc80cfc74
Sep 10 06:52:14.016 INFO kablam!                                at libstd/rt.rs:59
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panicking.rs:310
Sep 10 06:52:14.016 INFO kablam!   11:     0x55b7b4e4e0b9 - __rust_maybe_catch_panic
Sep 10 06:52:14.016 INFO kablam!                                at libpanic_unwind/lib.rs:103
Sep 10 06:52:14.016 INFO kablam!   12:     0x55b7b4e37485 - std::rt::lang_start_internal::h8194e5e3064ac4bd
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panicking.rs:289
Sep 10 06:52:14.016 INFO kablam!                                at libstd/panic.rs:392
Sep 10 06:52:14.016 INFO kablam!                                at libstd/rt.rs:58
Sep 10 06:52:14.016 INFO kablam!   13:     0x55b7b4db5887 - std::rt::lang_start::hf1c40233597b665a
Sep 10 06:52:14.016 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 10 06:52:14.016 INFO kablam!   14:     0x55b7b4db4939 - main
Sep 10 06:52:14.016 INFO kablam!   15:     0x7fa5f894c82f - __libc_start_main
Sep 10 06:52:14.016 INFO kablam!   16:     0x55b7b4db2818 - _start
Sep 10 06:52:14.016 INFO kablam!   17:                0x0 - <unknown>
Sep 10 06:52:14.016 INFO kablam! 
Sep 10 06:52:14.021 INFO kablam! su: No module specific data is present
Sep 10 06:52:14.620 INFO running `"docker" "rm" "-f" "883a71af5e8065cd052e9ae27d9ed79fc1eecf0c4e939988627ba986b7eeb008"`
Sep 10 06:52:14.713 INFO blam! 883a71af5e8065cd052e9ae27d9ed79fc1eecf0c4e939988627ba986b7eeb008