Sep 21 01:02:56.014 INFO checking verilated-0.1.1 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 01:02:56.014 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 01:02:56.014 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 01:02:56.327 INFO blam! 058bc33cf2936b1ff6380bf281641f6e66ff57eb43a793e3a2c95ca45007d47a
Sep 21 01:02:56.330 INFO running `"docker" "start" "-a" "058bc33cf2936b1ff6380bf281641f6e66ff57eb43a793e3a2c95ca45007d47a"`
Sep 21 01:02:56.951 INFO kablam! usermod: no changes
Sep 21 01:02:56.978 INFO kablam!    Compiling verilator v0.1.2
Sep 21 01:02:57.422 INFO kablam!    Compiling verilated v0.1.1 (/source)
Sep 21 01:02:58.131 INFO kablam! error: failed to run custom build command for `verilated v0.1.1 (/source)`
Sep 21 01:02:58.131 INFO kablam! process didn't exit successfully: `/target/debug/build/verilated-f66052f9ea47b94f/build-script-build` (exit code: 101)
Sep 21 01:02:58.131 INFO kablam! --- stderr
Sep 21 01:02:58.131 INFO kablam! thread 'main' panicked at '
Sep 21 01:02:58.131 INFO kablam! Failed to find `${VERILATOR_ROOT}`.  Please set `VERILATOR_ROOT` environment variable or ensure `verilator` is in `PATH`.
Sep 21 01:02:58.131 INFO kablam! 
Sep 21 01:02:58.131 INFO kablam! build script failed, must exit now', build.rs:16:5
Sep 21 01:02:58.131 INFO kablam! stack backtrace:
Sep 21 01:02:58.131 INFO kablam!    0:     0x556bd1a18cfe - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h8364381a6315579e
Sep 21 01:02:58.131 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 21 01:02:58.131 INFO kablam!    1:     0x556bd1a0ad56 - std::sys_common::backtrace::print::hbf206e386958691c
Sep 21 01:02:58.131 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 21 01:02:58.131 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 21 01:02:58.131 INFO kablam!    2:     0x556bd1a0913d - std::panicking::default_hook::{{closure}}::hdfbe128a3d24757d
Sep 21 01:02:58.131 INFO kablam!                                at libstd/panicking.rs:211
Sep 21 01:02:58.131 INFO kablam!    3:     0x556bd1a08eb0 - std::panicking::default_hook::h7fe1685957f6b205
Sep 21 01:02:58.131 INFO kablam!                                at libstd/panicking.rs:227
Sep 21 01:02:58.131 INFO kablam!    4:     0x556bd1a097ac - std::panicking::rust_panic_with_hook::h67471ab114b25df3
Sep 21 01:02:58.131 INFO kablam!                                at libstd/panicking.rs:477
Sep 21 01:02:58.131 INFO kablam!    5:     0x556bd1a093a9 - std::panicking::continue_panic_fmt::hccb547c7e8ba6430
Sep 21 01:02:58.131 INFO kablam!                                at libstd/panicking.rs:391
Sep 21 01:02:58.131 INFO kablam!    6:     0x556bd1a0930d - std::panicking::begin_panic_fmt::h1449a246d8077561
Sep 21 01:02:58.131 INFO kablam!                                at libstd/panicking.rs:346
Sep 21 01:02:58.131 INFO kablam!    7:     0x556bd1987f01 - build_script_build::fail::hddace8c6e2843a19
Sep 21 01:02:58.131 INFO kablam!                                at /source/build.rs:16
Sep 21 01:02:58.131 INFO kablam!    8:     0x556bd1987f8b - build_script_build::main::hb86d54c54ac46dc3
Sep 21 01:02:58.131 INFO kablam!                                at /source/build.rs:71
Sep 21 01:02:58.131 INFO kablam!    9:     0x556bd198997f - std::rt::lang_start::{{closure}}::hda03600c3b8e6926
Sep 21 01:02:58.131 INFO kablam!                                at libstd/rt.rs:74
Sep 21 01:02:58.131 INFO kablam!   10:     0x556bd1a09242 - std::panicking::try::do_call::hba3cdd40b2f76c63
Sep 21 01:02:58.131 INFO kablam!                                at libstd/rt.rs:59
Sep 21 01:02:58.131 INFO kablam!                                at libstd/panicking.rs:310
Sep 21 01:02:58.131 INFO kablam!   11:     0x556bd1a2b149 - __rust_maybe_catch_panic
Sep 21 01:02:58.131 INFO kablam!                                at libpanic_unwind/lib.rs:102
Sep 21 01:02:58.131 INFO kablam!   12:     0x556bd1a15525 - std::rt::lang_start_internal::ha318b532168af217
Sep 21 01:02:58.132 INFO kablam!                                at libstd/panicking.rs:289
Sep 21 01:02:58.132 INFO kablam!                                at libstd/panic.rs:392
Sep 21 01:02:58.132 INFO kablam!                                at libstd/rt.rs:58
Sep 21 01:02:58.132 INFO kablam!   13:     0x556bd1989957 - std::rt::lang_start::hf299a1ebcf4be534
Sep 21 01:02:58.132 INFO kablam!                                at libstd/rt.rs:74
Sep 21 01:02:58.132 INFO kablam!   14:     0x556bd1988999 - main
Sep 21 01:02:58.132 INFO kablam!   15:     0x7f0ad7db182f - __libc_start_main
Sep 21 01:02:58.132 INFO kablam!   16:     0x556bd1986878 - _start
Sep 21 01:02:58.132 INFO kablam!   17:                0x0 - <unknown>
Sep 21 01:02:58.132 INFO kablam! 
Sep 21 01:02:58.132 INFO kablam! su: No module specific data is present
Sep 21 01:02:58.670 INFO running `"docker" "rm" "-f" "058bc33cf2936b1ff6380bf281641f6e66ff57eb43a793e3a2c95ca45007d47a"`
Sep 21 01:02:58.770 INFO blam! 058bc33cf2936b1ff6380bf281641f6e66ff57eb43a793e3a2c95ca45007d47a