Sep 19 18:13:32.613 INFO checking verilated-0.1.1 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 19 18:13:32.613 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 19 18:13:32.614 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-6/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 18:13:32.988 INFO blam! 78310bf97517e1f59413dfd4a3415a417bae39d655aa92b8681345dab498d484
Sep 19 18:13:32.990 INFO running `"docker" "start" "-a" "78310bf97517e1f59413dfd4a3415a417bae39d655aa92b8681345dab498d484"`
Sep 19 18:13:33.608 INFO kablam! usermod: no changes
Sep 19 18:13:33.638 INFO kablam!    Compiling verilator v0.1.2
Sep 19 18:13:34.162 INFO kablam!    Compiling verilated v0.1.1 (/source)
Sep 19 18:13:34.900 INFO kablam! error: failed to run custom build command for `verilated v0.1.1 (/source)`
Sep 19 18:13:34.900 INFO kablam! process didn't exit successfully: `/target/debug/build/verilated-5d1f6dac0efb3bfe/build-script-build` (exit code: 101)
Sep 19 18:13:34.900 INFO kablam! --- stderr
Sep 19 18:13:34.900 INFO kablam! thread 'main' panicked at '
Sep 19 18:13:34.900 INFO kablam! Failed to find `${VERILATOR_ROOT}`.  Please set `VERILATOR_ROOT` environment variable or ensure `verilator` is in `PATH`.
Sep 19 18:13:34.900 INFO kablam! 
Sep 19 18:13:34.900 INFO kablam! build script failed, must exit now', build.rs:16:5
Sep 19 18:13:34.900 INFO kablam! stack backtrace:
Sep 19 18:13:34.900 INFO kablam!    0:     0x55f00e75775e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h060561e77e35d806
Sep 19 18:13:34.900 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 19 18:13:34.900 INFO kablam!    1:     0x55f00e7478d6 - std::sys_common::backtrace::print::haea7ed8a1bf250c8
Sep 19 18:13:34.900 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 19 18:13:34.900 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 19 18:13:34.900 INFO kablam!    2:     0x55f00e745cbd - std::panicking::default_hook::{{closure}}::h1005c8854e58be8d
Sep 19 18:13:34.900 INFO kablam!                                at libstd/panicking.rs:211
Sep 19 18:13:34.900 INFO kablam!    3:     0x55f00e745a30 - std::panicking::default_hook::h79143d5863e2bd30
Sep 19 18:13:34.900 INFO kablam!                                at libstd/panicking.rs:227
Sep 19 18:13:34.900 INFO kablam!    4:     0x55f00e74632c - std::panicking::rust_panic_with_hook::hd9cae99f6e4776b8
Sep 19 18:13:34.900 INFO kablam!                                at libstd/panicking.rs:477
Sep 19 18:13:34.900 INFO kablam!    5:     0x55f00e745f29 - std::panicking::continue_panic_fmt::h446ccd7d316def28
Sep 19 18:13:34.901 INFO kablam!                                at libstd/panicking.rs:391
Sep 19 18:13:34.901 INFO kablam!    6:     0x55f00e745e8d - std::panicking::begin_panic_fmt::hb88cb158287c55b4
Sep 19 18:13:34.901 INFO kablam!                                at libstd/panicking.rs:346
Sep 19 18:13:34.901 INFO kablam!    7:     0x55f00e6c6ea1 - build_script_build::fail::h4d7bfe15d6d4ac10
Sep 19 18:13:34.901 INFO kablam!                                at /source/build.rs:16
Sep 19 18:13:34.901 INFO kablam!    8:     0x55f00e6c6f2b - build_script_build::main::h7bf552a333f28b01
Sep 19 18:13:34.901 INFO kablam!                                at /source/build.rs:71
Sep 19 18:13:34.901 INFO kablam!    9:     0x55f00e6c891f - std::rt::lang_start::{{closure}}::ha6b752e8816e782e
Sep 19 18:13:34.901 INFO kablam!                                at libstd/rt.rs:74
Sep 19 18:13:34.901 INFO kablam!   10:     0x55f00e745dc2 - std::panicking::try::do_call::had563038a207619d
Sep 19 18:13:34.901 INFO kablam!                                at libstd/rt.rs:59
Sep 19 18:13:34.901 INFO kablam!                                at libstd/panicking.rs:310
Sep 19 18:13:34.901 INFO kablam!   11:     0x55f00e769ef9 - __rust_maybe_catch_panic
Sep 19 18:13:34.901 INFO kablam!                                at libpanic_unwind/lib.rs:102
Sep 19 18:13:34.901 INFO kablam!   12:     0x55f00e752f75 - std::rt::lang_start_internal::hcd623b62ef9a6b5e
Sep 19 18:13:34.901 INFO kablam!                                at libstd/panicking.rs:289
Sep 19 18:13:34.901 INFO kablam!                                at libstd/panic.rs:392
Sep 19 18:13:34.901 INFO kablam!                                at libstd/rt.rs:58
Sep 19 18:13:34.901 INFO kablam!   13:     0x55f00e6c88f7 - std::rt::lang_start::hc5667625cb648b1f
Sep 19 18:13:34.901 INFO kablam!                                at libstd/rt.rs:74
Sep 19 18:13:34.901 INFO kablam!   14:     0x55f00e6c7939 - main
Sep 19 18:13:34.901 INFO kablam!   15:     0x7f258207f82f - __libc_start_main
Sep 19 18:13:34.901 INFO kablam!   16:     0x55f00e6c5818 - _start
Sep 19 18:13:34.901 INFO kablam!   17:                0x0 - <unknown>
Sep 19 18:13:34.901 INFO kablam! 
Sep 19 18:13:34.904 INFO kablam! su: No module specific data is present
Sep 19 18:13:35.437 INFO running `"docker" "rm" "-f" "78310bf97517e1f59413dfd4a3415a417bae39d655aa92b8681345dab498d484"`
Sep 19 18:13:35.524 INFO blam! 78310bf97517e1f59413dfd4a3415a417bae39d655aa92b8681345dab498d484