[INFO] crate flutter-engine 0.3.3 is already in cache [INFO] extracting crate flutter-engine 0.3.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/flutter-engine/0.3.3 [INFO] extracting crate flutter-engine 0.3.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flutter-engine/0.3.3 [INFO] validating manifest of flutter-engine-0.3.3 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of flutter-engine-0.3.3 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing flutter-engine-0.3.3 [INFO] finished frobbing flutter-engine-0.3.3 [INFO] frobbed toml for flutter-engine-0.3.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/flutter-engine/0.3.3/Cargo.toml [INFO] started frobbing flutter-engine-0.3.3 [INFO] finished frobbing flutter-engine-0.3.3 [INFO] frobbed toml for flutter-engine-0.3.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flutter-engine/0.3.3/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing flutter-engine-0.3.3 against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/flutter-engine/0.3.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] d17cbe2b605d5ff81adaf6ab9a690acb8f99619c83b04d9bf110b9c76402a947 [INFO] running `"docker" "start" "-a" "d17cbe2b605d5ff81adaf6ab9a690acb8f99619c83b04d9bf110b9c76402a947"` [INFO] [stderr] Compiling curl v0.4.22 [INFO] [stderr] Compiling bindgen v0.42.3 [INFO] [stderr] Compiling transformation-pipeline v0.1.0 [INFO] [stderr] Compiling libnghttp2-sys v0.1.1 [INFO] [stderr] Compiling curl-sys v0.4.20 [INFO] [stderr] Compiling glfw-sys v3.3.0 [INFO] [stderr] Compiling gl_generator v0.10.0 [INFO] [stderr] Compiling zip v0.2.8 [INFO] [stderr] Compiling unzip v0.1.0 [INFO] [stderr] Compiling gl v0.11.0 [INFO] [stderr] Compiling glfw v0.28.0 [INFO] [stderr] Compiling flutter-download v0.3.0 [INFO] [stderr] Compiling flutter-engine-sys v0.3.2 [INFO] [stderr] error: failed to run custom build command for `flutter-engine-sys v0.3.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/flutter-engine-sys-a116937d45d82d4b/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] error: 'rustfmt' is not installed for the toolchain 'beta-2019-07-23-x86_64-unknown-linux-gnu' [INFO] [stderr] To install, run `rustup component add rustfmt --toolchain beta-2019-07-23-x86_64-unknown-linux-gnu` [INFO] [stderr] Custom { kind: Other, error: "Internal rustfmt error" } [INFO] [stderr] thread 'main' panicked at 'Cannot get flutter engine version: InvalidFlutterRoot("output empty")', src/libcore/result.rs:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x556d7ae15a1b - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x556d7ae15a1b - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x556d7ae15a1b - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x556d7ae15a1b - std::sys_common::backtrace::print::h31646c3786c57441 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x556d7ae15a1b - std::panicking::default_hook::{{closure}}::hda785e768c746ae7 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x556d7ae156f7 - std::panicking::default_hook::h0c4b76f338614ef1 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x556d7ae16190 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x556d7ae15d12 - std::panicking::continue_panic_fmt::h0046167652be99a6 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x556d7ae15bf6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x556d7ae3670d - core::panicking::panic_fmt::h8980489a6c4a44cb [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x556d7a64a786 - core::result::unwrap_failed::h173287ceb05ca44c [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x556d7a64ad8a - core::result::Result::expect::h5520d524ad35e84f [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:827 [INFO] [stderr] 12: 0x556d7a64801b - build_script_build::main::h2126c65365bec1df [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/flutter-engine-sys-0.3.2/build.rs:48 [INFO] [stderr] 13: 0x556d7a6449c0 - std::rt::lang_start::{{closure}}::he790ef71f0b058ae [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x556d7ae15b93 - std::rt::lang_start_internal::{{closure}}::h055e1fdc5578d418 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x556d7ae15b93 - std::panicking::try::do_call::h480cafa68c9928b4 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x556d7ae1e8ca - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x556d7ae1675d - std::panicking::try::he0549d0299de204a [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x556d7ae1675d - std::panic::catch_unwind::h422dc2db98f03517 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x556d7ae1675d - std::rt::lang_start_internal::h121de03325a3f900 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x556d7a644999 - std::rt::lang_start::hd4c938deed55c727 [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x556d7a64905a - main [INFO] [stderr] 22: 0x7f53f022a2e1 - __libc_start_main [INFO] [stderr] 23: 0x556d7a64079a - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "d17cbe2b605d5ff81adaf6ab9a690acb8f99619c83b04d9bf110b9c76402a947"` [INFO] running `"docker" "rm" "-f" "d17cbe2b605d5ff81adaf6ab9a690acb8f99619c83b04d9bf110b9c76402a947"` [INFO] [stdout] d17cbe2b605d5ff81adaf6ab9a690acb8f99619c83b04d9bf110b9c76402a947