Aug 31 09:38:24.795 INFO checking verilated-0.1.1 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 09:38:24.795 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 09:38:24.795 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-3/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 09:38:24.989 INFO blam! ffbfac2c22f44d00478e3c799e34a48c68f72e2cfc843b2fe3ef1b7a42d66d2a
Aug 31 09:38:24.990 INFO running `"docker" "start" "-a" "ffbfac2c22f44d00478e3c799e34a48c68f72e2cfc843b2fe3ef1b7a42d66d2a"`
Aug 31 09:38:25.548 INFO kablam!    Compiling verilator v0.1.1
Aug 31 09:38:26.111 INFO kablam!    Compiling verilated v0.1.1 (file:///source)
Aug 31 09:38:26.851 INFO kablam! error: failed to run custom build command for `verilated v0.1.1 (file:///source)`
Aug 31 09:38:26.851 INFO kablam! process didn't exit successfully: `/target/debug/build/verilated-40b3d451ab962781/build-script-build` (exit code: 101)
Aug 31 09:38:26.851 INFO kablam! --- stderr
Aug 31 09:38:26.852 INFO kablam! thread 'main' panicked at '
Aug 31 09:38:26.852 INFO kablam! Failed to find `${VERILATOR_ROOT}`.  Please set `VERILATOR_ROOT` environment variable or ensure `verilator` is in `PATH`.
Aug 31 09:38:26.852 INFO kablam! 
Aug 31 09:38:26.852 INFO kablam! build script failed, must exit now', build.rs:16:5
Aug 31 09:38:26.852 INFO kablam! stack backtrace:
Aug 31 09:38:26.852 INFO kablam!    0:     0x560d49b58e5e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h8c3d0a2d42413513
Aug 31 09:38:26.852 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Aug 31 09:38:26.852 INFO kablam!    1:     0x560d49b48d06 - std::sys_common::backtrace::print::h2501b31339c3d559
Aug 31 09:38:26.852 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Aug 31 09:38:26.852 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Aug 31 09:38:26.852 INFO kablam!    2:     0x560d49b470bd - std::panicking::default_hook::{{closure}}::h9550b067844d79de
Aug 31 09:38:26.852 INFO kablam!                                at libstd/panicking.rs:211
Aug 31 09:38:26.852 INFO kablam!    3:     0x560d49b46e30 - std::panicking::default_hook::h26bd688683b20acb
Aug 31 09:38:26.852 INFO kablam!                                at libstd/panicking.rs:227
Aug 31 09:38:26.852 INFO kablam!    4:     0x560d49b4772c - std::panicking::rust_panic_with_hook::h0967a90ee06b4501
Aug 31 09:38:26.852 INFO kablam!                                at libstd/panicking.rs:475
Aug 31 09:38:26.852 INFO kablam!    5:     0x560d49b47329 - std::panicking::continue_panic_fmt::h2246084f996cae26
Aug 31 09:38:26.852 INFO kablam!                                at libstd/panicking.rs:390
Aug 31 09:38:26.852 INFO kablam!    6:     0x560d49b4728d - std::panicking::begin_panic_fmt::h94668429cb9b1695
Aug 31 09:38:26.852 INFO kablam!                                at libstd/panicking.rs:345
Aug 31 09:38:26.852 INFO kablam!    7:     0x560d49acff51 - build_script_build::fail::hfacf5c3a21f6630f
Aug 31 09:38:26.852 INFO kablam!                                at /source/build.rs:16
Aug 31 09:38:26.852 INFO kablam!    8:     0x560d49acffdd - build_script_build::main::h4004f71e650b143d
Aug 31 09:38:26.852 INFO kablam!                                at /source/build.rs:71
Aug 31 09:38:26.852 INFO kablam!    9:     0x560d49ad104f - std::rt::lang_start::{{closure}}::hb61797bb454c9368
Aug 31 09:38:26.852 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 31 09:38:26.852 INFO kablam!   10:     0x560d49b471c2 - std::panicking::try::do_call::hc4206115bb2011fe
Aug 31 09:38:26.852 INFO kablam!                                at libstd/rt.rs:59
Aug 31 09:38:26.852 INFO kablam!                                at libstd/panicking.rs:310
Aug 31 09:38:26.852 INFO kablam!   11:     0x560d49b6a7d9 - __rust_maybe_catch_panic
Aug 31 09:38:26.853 INFO kablam!                                at libpanic_unwind/lib.rs:102
Aug 31 09:38:26.853 INFO kablam!   12:     0x560d49b545e5 - std::rt::lang_start_internal::h0f4e93d8d2604488
Aug 31 09:38:26.853 INFO kablam!                                at libstd/panicking.rs:289
Aug 31 09:38:26.853 INFO kablam!                                at libstd/panic.rs:392
Aug 31 09:38:26.853 INFO kablam!                                at libstd/rt.rs:58
Aug 31 09:38:26.853 INFO kablam!   13:     0x560d49ad1027 - std::rt::lang_start::h478f631be176f876
Aug 31 09:38:26.853 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 31 09:38:26.853 INFO kablam!   14:     0x560d49ad0a29 - main
Aug 31 09:38:26.853 INFO kablam!   15:     0x7f8413f2a82f - __libc_start_main
Aug 31 09:38:26.853 INFO kablam!   16:     0x560d49ace8c8 - _start
Aug 31 09:38:26.853 INFO kablam!   17:                0x0 - <unknown>
Aug 31 09:38:26.853 INFO kablam! 
Aug 31 09:38:26.853 INFO kablam! su: No module specific data is present
Aug 31 09:38:27.231 INFO running `"docker" "rm" "-f" "ffbfac2c22f44d00478e3c799e34a48c68f72e2cfc843b2fe3ef1b7a42d66d2a"`
Aug 31 09:38:27.319 INFO blam! ffbfac2c22f44d00478e3c799e34a48c68f72e2cfc843b2fe3ef1b7a42d66d2a