[INFO] crate flutter-engine 0.3.5 is already in cache
[INFO] checking flutter-engine-0.3.5 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate flutter-engine 0.3.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate flutter-engine 0.3.5 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate flutter-engine 0.3.5
[INFO] finished tweaking crates.io crate flutter-engine 0.3.5
[INFO] tweaked toml for crates.io crate flutter-engine 0.3.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3c87b8c6ae8b2f71ebcd478c1a195be97109ded62aa1985387147ae9ac04a5cb
[INFO] running `"docker" "start" "-a" "3c87b8c6ae8b2f71ebcd478c1a195be97109ded62aa1985387147ae9ac04a5cb"`
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling transformation-pipeline v0.1.0
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling xml-rs v0.8.2
[INFO] [stderr]     Checking unic-langid-impl v0.4.0
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling glfw-sys v3.3.2
[INFO] [stderr]     Checking unic-locale-impl v0.4.0
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling bzip2-sys v0.1.8+1.0.8
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]     Checking priority-queue v0.6.0
[INFO] [stderr]     Checking unic-locale v0.4.2
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking locale_config v0.2.3
[INFO] [stderr]    Compiling zip v0.2.8
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling unzip v0.1.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking glfw v0.28.0
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]    Compiling flutter-download v0.3.5
[INFO] [stderr]    Compiling flutter-engine-sys v0.3.5
[INFO] [stderr] error: failed to run custom build command for `flutter-engine-sys v0.3.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/flutter-engine-sys-044ed51b767faf59/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] error: 'rustfmt' is not installed for the toolchain 'bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc'
[INFO] [stderr] To install, run `rustup component add rustfmt --toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc`
[INFO] [stderr] Failed to run rustfmt: Internal rustfmt error (non-fatal, continuing)
[INFO] [stderr] thread 'main' panicked at 'Cannot get flutter engine version: InvalidFlutterRoot("output empty")', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flutter-engine-sys-0.3.5/build.rs:58:19
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55eecdfe2ab4 - backtrace::backtrace::libunwind::trace::hda902e3a4eb9d449
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55eecdfe2ab4 - backtrace::backtrace::trace_unsynchronized::h06df0062bb63b7e2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55eecdfe2ab4 - std::sys_common::backtrace::_print_fmt::ha5249daf78f399e8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55eecdfe2ab4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h68243ef2eafa8843
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55eece00e8fc - core::fmt::write::h8b50d07b82ae3922
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x55eecdfdee73 - std::io::Write::write_fmt::h9a5b9a212b705549
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x55eecdfe52a5 - std::sys_common::backtrace::_print::hcd11fe8eb9e7335d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55eecdfe52a5 - std::sys_common::backtrace::print::h475286256f91474c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55eecdfe52a5 - std::panicking::default_hook::{{closure}}::h2a45e9d6ef27161b
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x55eecdfe4fe2 - std::panicking::default_hook::h76adec688b27abdd
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x55eecdfe5902 - std::panicking::rust_panic_with_hook::h121f4f2c52efbcbf
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x55eecdfe54eb - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x55eece00d041 - core::panicking::panic_fmt::hee64f597d93665b6
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x55eece00ce63 - core::option::expect_none_failed::h90fed74f6e49bf90
[INFO] [stderr]                                at src/libcore/option.rs:1268
[INFO] [stderr]   14:     0x55eecd900255 - core::result::Result<T,E>::expect::h8c76ca80678664bc
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x55eecd8fc0a3 - build_script_build::main::h71c3eab2ac43454d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/flutter-engine-sys-0.3.5/build.rs:58
[INFO] [stderr]   16:     0x55eecd8fb28b - std::rt::lang_start::{{closure}}::h5fa691c833b9c3d4
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55eecdfe5e18 - std::rt::lang_start_internal::{{closure}}::h15b56bd7f81214ad
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x55eecdfe5e18 - std::panicking::try::do_call::hbe8467da291bc822
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   19:     0x55eecdfe5e18 - std::panicking::try::hde3b5cbc6989304d
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x55eecdfe5e18 - std::panic::catch_unwind::h56844acb323fdd6c
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x55eecdfe5e18 - std::rt::lang_start_internal::hae379591a9420b87
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x55eecd8fb267 - std::rt::lang_start::h4cee2e452470529b
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x55eecd8fcd6a - main
[INFO] [stderr]   24:     0x7f8a13871b97 - __libc_start_main
[INFO] [stderr]   25:     0x55eecd8f6e2a - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "3c87b8c6ae8b2f71ebcd478c1a195be97109ded62aa1985387147ae9ac04a5cb"`
[INFO] running `"docker" "rm" "-f" "3c87b8c6ae8b2f71ebcd478c1a195be97109ded62aa1985387147ae9ac04a5cb"`
[INFO] [stdout] 3c87b8c6ae8b2f71ebcd478c1a195be97109ded62aa1985387147ae9ac04a5cb
