Aug 31 09:38:23.976 INFO checking verilated-0.1.1 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Aug 31 09:38:23.976 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Aug 31 09:38:23.976 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-0/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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=500" "-e" "CMD=cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 09:38:24.178 INFO blam! 5c7e93c8175fff5f2cf4c818f856de53bf4397794c4a65912e14189d5d0b57a4
Aug 31 09:38:24.180 INFO running `"docker" "start" "-a" "5c7e93c8175fff5f2cf4c818f856de53bf4397794c4a65912e14189d5d0b57a4"`
Aug 31 09:38:24.864 INFO kablam!    Compiling verilator v0.1.1
Aug 31 09:38:25.441 INFO kablam!    Compiling verilated v0.1.1 (file:///source)
Aug 31 09:38:26.230 INFO kablam! error: failed to run custom build command for `verilated v0.1.1 (file:///source)`
Aug 31 09:38:26.230 INFO kablam! process didn't exit successfully: `/target/debug/build/verilated-d699ffccc3f91b26/build-script-build` (exit code: 101)
Aug 31 09:38:26.230 INFO kablam! --- stderr
Aug 31 09:38:26.230 INFO kablam! thread 'main' panicked at '
Aug 31 09:38:26.230 INFO kablam! Failed to find `${VERILATOR_ROOT}`.  Please set `VERILATOR_ROOT` environment variable or ensure `verilator` is in `PATH`.
Aug 31 09:38:26.230 INFO kablam! 
Aug 31 09:38:26.230 INFO kablam! build script failed, must exit now', build.rs:16:5
Aug 31 09:38:26.230 INFO kablam! stack backtrace:
Aug 31 09:38:26.230 INFO kablam!    0:     0x56042cb2fe5e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h5b93042d6f15f800
Aug 31 09:38:26.230 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Aug 31 09:38:26.230 INFO kablam!    1:     0x56042cb1fd06 - std::sys_common::backtrace::print::h20e4b3ea37b660b2
Aug 31 09:38:26.230 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Aug 31 09:38:26.230 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Aug 31 09:38:26.230 INFO kablam!    2:     0x56042cb1e0bd - std::panicking::default_hook::{{closure}}::h795a478e1aaada94
Aug 31 09:38:26.230 INFO kablam!                                at libstd/panicking.rs:211
Aug 31 09:38:26.230 INFO kablam!    3:     0x56042cb1de30 - std::panicking::default_hook::h62c69762e441cd31
Aug 31 09:38:26.231 INFO kablam!                                at libstd/panicking.rs:227
Aug 31 09:38:26.231 INFO kablam!    4:     0x56042cb1e72c - std::panicking::rust_panic_with_hook::hb56a094fe82bce4d
Aug 31 09:38:26.231 INFO kablam!                                at libstd/panicking.rs:475
Aug 31 09:38:26.231 INFO kablam!    5:     0x56042cb1e329 - std::panicking::continue_panic_fmt::hbf794f131d328561
Aug 31 09:38:26.231 INFO kablam!                                at libstd/panicking.rs:390
Aug 31 09:38:26.231 INFO kablam!    6:     0x56042cb1e28d - std::panicking::begin_panic_fmt::hc7233ac84e1adcb5
Aug 31 09:38:26.231 INFO kablam!                                at libstd/panicking.rs:345
Aug 31 09:38:26.231 INFO kablam!    7:     0x56042caa6f51 - build_script_build::fail::h090363161331e9e5
Aug 31 09:38:26.231 INFO kablam!                                at /source/build.rs:16
Aug 31 09:38:26.231 INFO kablam!    8:     0x56042caa6fdd - build_script_build::main::h6e5255208f47e835
Aug 31 09:38:26.231 INFO kablam!                                at /source/build.rs:71
Aug 31 09:38:26.231 INFO kablam!    9:     0x56042caa899f - std::rt::lang_start::{{closure}}::h6cde51f06773ee92
Aug 31 09:38:26.231 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 31 09:38:26.231 INFO kablam!   10:     0x56042cb1e1c2 - std::panicking::try::do_call::h344c73344a3fd6f6
Aug 31 09:38:26.231 INFO kablam!                                at libstd/rt.rs:59
Aug 31 09:38:26.231 INFO kablam!                                at libstd/panicking.rs:310
Aug 31 09:38:26.231 INFO kablam!   11:     0x56042cb41d59 - __rust_maybe_catch_panic
Aug 31 09:38:26.231 INFO kablam!                                at libpanic_unwind/lib.rs:102
Aug 31 09:38:26.231 INFO kablam!   12:     0x56042cb2b5e5 - std::rt::lang_start_internal::h4ab4abaf01dcd012
Aug 31 09:38:26.231 INFO kablam!                                at libstd/panicking.rs:289
Aug 31 09:38:26.231 INFO kablam!                                at libstd/panic.rs:392
Aug 31 09:38:26.231 INFO kablam!                                at libstd/rt.rs:58
Aug 31 09:38:26.231 INFO kablam!   13:     0x56042caa8977 - std::rt::lang_start::h37ffc66e3b62bec1
Aug 31 09:38:26.231 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 31 09:38:26.231 INFO kablam!   14:     0x56042caa7a29 - main
Aug 31 09:38:26.231 INFO kablam!   15:     0x7f5d8f75282f - __libc_start_main
Aug 31 09:38:26.231 INFO kablam!   16:     0x56042caa58c8 - _start
Aug 31 09:38:26.232 INFO kablam!   17:                0x0 - <unknown>
Aug 31 09:38:26.232 INFO kablam! 
Aug 31 09:38:26.232 INFO kablam! su: No module specific data is present
Aug 31 09:38:26.640 INFO running `"docker" "rm" "-f" "5c7e93c8175fff5f2cf4c818f856de53bf4397794c4a65912e14189d5d0b57a4"`
Aug 31 09:38:26.745 INFO blam! 5c7e93c8175fff5f2cf4c818f856de53bf4397794c4a65912e14189d5d0b57a4