[INFO] fetching crate flutter-plugins 0.3.5...
[INFO] documenting flutter-plugins-0.3.5 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate flutter-plugins 0.3.5 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate flutter-plugins 0.3.5 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flutter-plugins 0.3.5
[INFO] finished tweaking crates.io crate flutter-plugins 0.3.5
[INFO] tweaked toml for crates.io crate flutter-plugins 0.3.5 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flutter-engine-sys v0.3.5
[INFO] [stderr]   Downloaded gl_generator v0.10.0
[INFO] [stderr]   Downloaded gl v0.11.0
[INFO] [stderr]   Downloaded priority-queue v0.6.0
[INFO] [stderr]   Downloaded glfw v0.28.0
[INFO] [stderr]   Downloaded unic-locale-impl v0.4.0
[INFO] [stderr]   Downloaded unic-locale v0.4.2
[INFO] [stderr]   Downloaded flutter-engine v0.3.5
[INFO] [stderr]   Downloaded locale_config v0.2.3
[INFO] [stderr]   Downloaded tinyfiledialogs v3.9.1
[INFO] [stderr]   Downloaded bindgen v0.50.1
[INFO] [stderr]   Downloaded glfw-sys v3.3.5
[INFO] [stderr]   Downloaded nom v1.2.4
[INFO] [stderr]   Downloaded semver v0.2.3
[INFO] [stderr]   Downloaded unic-langid-impl v0.4.0
[INFO] [stderr]   Downloaded flutter-download v0.3.5
[INFO] [stderr]   Downloaded indexmap v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 432b1931940d798e774ac39818837fe0f474950b4dcc676259da2c41731796bf
[INFO] running `Command { std: "docker" "start" "-a" "432b1931940d798e774ac39818837fe0f474950b4dcc676259da2c41731796bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "432b1931940d798e774ac39818837fe0f474950b4dcc676259da2c41731796bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432b1931940d798e774ac39818837fe0f474950b4dcc676259da2c41731796bf", kill_on_drop: false }`
[INFO] [stdout] 432b1931940d798e774ac39818837fe0f474950b4dcc676259da2c41731796bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c295f76b0f9e422970c8ae7dca75a68d1e62ebd2df8de4888ac33b063db42ba0
[INFO] running `Command { std: "docker" "start" "-a" "c295f76b0f9e422970c8ae7dca75a68d1e62ebd2df8de4888ac33b063db42ba0", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.9+1.58.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling curl-sys v0.4.70+curl-8.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]    Compiling podio v0.1.7
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling zip v0.2.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling transformation-pipeline v0.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.4.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling unzip v0.1.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling glfw-sys v3.3.5
[INFO] [stderr]     Checking num-iter v0.1.43
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking unic-langid-impl v0.4.0
[INFO] [stderr]     Checking unic-locale-impl v0.4.0
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking semver v0.2.3
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tinyfiledialogs v3.9.1
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking unic-locale v0.4.2
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking locale_config v0.2.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking priority-queue v0.6.0
[INFO] [stderr]    Compiling flutter-download v0.3.5
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking glfw v0.28.0
[INFO] [stderr]     Checking serde v1.0.195
[INFO] [stderr]    Compiling flutter-engine-sys v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.111
[INFO] [stderr] error: failed to run custom build command for `flutter-engine-sys v0.3.5`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/flutter-engine-sys-c4a5c8a396e7e582/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the toolchain '1.75.0-x86_64-unknown-linux-gnu'
[INFO] [stderr]   To install, run `rustup component add rustfmt --toolchain 1.75.0-x86_64-unknown-linux-gnu`
[INFO] [stderr]   Failed to run rustfmt: Internal rustfmt error (non-fatal, continuing)
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/flutter-engine-sys-0.3.5/build.rs:58:41:
[INFO] [stderr]   Cannot get flutter engine version: InvalidFlutterRoot("output empty")
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5566125e9f7c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x5566125e9f7c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5566125e9f7c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5566125e9f7c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x556612614ed0 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x556612614ed0 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x5566125e758f - std::io::Write::write_fmt::h5fc9997dfe05f882
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stderr]      7:     0x5566125e9d64 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x5566125e9d64 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x5566125eb367 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stderr]     10:     0x5566125eb0cf - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x5566125eb7e8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:779:13
[INFO] [stderr]     12:     0x5566125eb6ce - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x5566125ea446 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stderr]     14:     0x5566125eb432 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55661207db65 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55661207e133 - core::result::unwrap_failed::hddb4fea594200c52
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1653:5
[INFO] [stderr]     17:     0x55661208355c - core::result::Result<T,E>::expect::h1efed055d77e715c
[INFO] [stderr]     18:     0x556612080ecb - build_script_build::main::h317ec8ad7e0a323d
[INFO] [stderr]     19:     0x556612083073 - core::ops::function::FnOnce::call_once::h9227404291d9e836
[INFO] [stderr]     20:     0x556612082046 - std::sys_common::backtrace::__rust_begin_short_backtrace::h710eadf068fdd547
[INFO] [stderr]     21:     0x556612082679 - std::rt::lang_start::{{closure}}::hc62502456ef24929
[INFO] [stderr]     22:     0x5566125e25c7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd95060ecd5e1ca24
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x5566125e25c7 - std::panicking::try::do_call::h6e8cf51db32a6e4b
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stderr]     24:     0x5566125e25c7 - std::panicking::try::h3a52eefe24fe3c29
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stderr]     25:     0x5566125e25c7 - std::panic::catch_unwind::h24c28c23c02c3841
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stderr]     26:     0x5566125e25c7 - std::rt::lang_start_internal::{{closure}}::h705d3c9cbc06ef47
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:148:48
[INFO] [stderr]     27:     0x5566125e25c7 - std::panicking::try::do_call::ha21f52ba13158470
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stderr]     28:     0x5566125e25c7 - std::panicking::try::h5581346bf6aeb1f8
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stderr]     29:     0x5566125e25c7 - std::panic::catch_unwind::h7919645a6b72e25b
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stderr]     30:     0x5566125e25c7 - std::rt::lang_start_internal::h12de51168669836e
[INFO] [stderr]                                  at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/rt.rs:148:20
[INFO] [stderr]     31:     0x556612082657 - std::rt::lang_start::h4b22f8860fa715f4
[INFO] [stderr]     32:     0x556612081fe5 - main
[INFO] [stderr]     33:     0x7f2dffffad90 - <unknown>
[INFO] [stderr]     34:     0x7f2dffffae40 - __libc_start_main
[INFO] [stderr]     35:     0x55661207e445 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c295f76b0f9e422970c8ae7dca75a68d1e62ebd2df8de4888ac33b063db42ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c295f76b0f9e422970c8ae7dca75a68d1e62ebd2df8de4888ac33b063db42ba0", kill_on_drop: false }`
[INFO] [stdout] c295f76b0f9e422970c8ae7dca75a68d1e62ebd2df8de4888ac33b063db42ba0
