[INFO] cloning repository https://github.com/perceptia/perceptia
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perceptia/perceptia" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperceptia%2Fperceptia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperceptia%2Fperceptia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 350b9eef124ad79c835c6290838bb4aa56d2d066
[INFO] checking perceptia/perceptia against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperceptia%2Fperceptia" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/perceptia/perceptia on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/perceptia/perceptia
[INFO] finished tweaking git repo https://github.com/perceptia/perceptia
[INFO] tweaked toml for git repo https://github.com/perceptia/perceptia written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/perceptia/perceptia already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 879f594f783934e0c1d4d37b8dff161c19e3b03f552c636fc26a375a21f5f657
[INFO] running `Command { std: "docker" "start" "-a" "879f594f783934e0c1d4d37b8dff161c19e3b03f552c636fc26a375a21f5f657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879f594f783934e0c1d4d37b8dff161c19e3b03f552c636fc26a375a21f5f657", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879f594f783934e0c1d4d37b8dff161c19e3b03f552c636fc26a375a21f5f657", kill_on_drop: false }`
[INFO] [stdout] 879f594f783934e0c1d4d37b8dff161c19e3b03f552c636fc26a375a21f5f657
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1f78963e868b7c2e9936e74c2e589643901f2039e682ffbe1b64653420eb4db
[INFO] running `Command { std: "docker" "start" "-a" "e1f78963e868b7c2e9936e74c2e589643901f2039e682ffbe1b64653420eb4db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]     Checking cfg-if v0.1.1
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]    Compiling rayon-core v1.0.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking odds v0.2.25
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking linked-hash-map v0.0.10
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]    Compiling libudev-sys v0.1.3
[INFO] [stderr]    Compiling silverknife-fontconfig-sys v0.1.0
[INFO] [stderr]    Compiling dbus v0.5.3
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]     Checking gif v0.9.1
[INFO] [stderr]     Checking deflate v0.7.11
[INFO] [stderr]     Checking khronos v0.1.2
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking stb_truetype v0.2.1
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking timerfd v0.2.0
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking gbm-rs v0.2.0
[INFO] [stderr]     Checking egl v0.2.7
[INFO] [stderr]     Checking drm-rs v0.1.3
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking xkbcommon v0.2.1
[INFO] [stderr]     Checking num_cpus v1.5.1
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking nodrop v0.1.9
[INFO] [stderr] error: failed to run custom build command for `libudev-sys v0.1.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libudev-sys-ca3d2e05d9e36abf/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-search=native=/lib/x86_64-linux-gnu
[INFO] [stderr]   cargo:rustc-link-lib=udev
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libudev-sys-0.1.3/build.rs:13:40
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56217d7659b0 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x56217d7659b0 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x56217d7659b0 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x56217d7659b0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2a772198c4032452
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x56217d78363c - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x56217d762f55 - std::io::Write::write_fmt::h00f38d9eb2c32e02
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/io/mod.rs:1663:15
[INFO] [stderr]      6:     0x56217d76778b - std::sys_common::backtrace::_print::h5b3c171e6f864ae4
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x56217d76778b - std::sys_common::backtrace::print::h93b9e9ed2a98e611
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x56217d76778b - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x56217d767261 - std::panicking::default_hook::hdbc8b2951c5afbab
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x56217d767e54 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x56217d767937 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x56217d765eac - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x56217d767899 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x56217d734211 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x56217d7342a3 - core::result::unwrap_failed::he898b02f57993c42
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x56217d7367b7 - core::result::Result<T,E>::unwrap::h5124be570320c70a
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x56217d735c82 - build_script_build::check_func::hb63cee981fda616a
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libudev-sys-0.1.3/build.rs:13:5
[INFO] [stderr]     18:     0x56217d736576 - build_script_build::main::h7a52e877db644a65
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libudev-sys-0.1.3/build.rs:41:8
[INFO] [stderr]     19:     0x56217d7358ab - core::ops::function::FnOnce::call_once::heb97c2300dc8c705
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x56217d73594e - std::sys_common::backtrace::__rust_begin_short_backtrace::h51c90068ecb72ec3
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x56217d737101 - std::rt::lang_start::{{closure}}::hd48d76c7a41f3ebb
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/rt.rs:63:18
[INFO] [stderr]     22:     0x56217d76835a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hcbe5785d54a49ce2
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x56217d76835a - std::panicking::try::do_call::h1c15e7ee8563c29d
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:401:40
[INFO] [stderr]     24:     0x56217d76835a - std::panicking::try::hb8b07cef009cb4fc
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:365:19
[INFO] [stderr]     25:     0x56217d76835a - std::panic::catch_unwind::h65a8efbe596bcbb1
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panic.rs:434:14
[INFO] [stderr]     26:     0x56217d76835a - std::rt::lang_start_internal::{{closure}}::h66ded7ab0f18e9fb
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/rt.rs:45:48
[INFO] [stderr]     27:     0x56217d76835a - std::panicking::try::do_call::h29cafa65efb3f3f3
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:401:40
[INFO] [stderr]     28:     0x56217d76835a - std::panicking::try::h412fc5378b4dbfc4
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panicking.rs:365:19
[INFO] [stderr]     29:     0x56217d76835a - std::panic::catch_unwind::h555def6aac5bf192
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/panic.rs:434:14
[INFO] [stderr]     30:     0x56217d76835a - std::rt::lang_start_internal::hfff48202d7fee6e3
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/rt.rs:45:20
[INFO] [stderr]     31:     0x56217d7370d0 - std::rt::lang_start::h52ba699ad429df34
[INFO] [stderr]                                  at /rustc/dfd7b8d03fb93d0e03147d28b3be6d93260fa94d/library/std/src/rt.rs:62:5
[INFO] [stderr]     32:     0x56217d73664c - main
[INFO] [stderr]     33:     0x7fb7f8fe00b3 - __libc_start_main
[INFO] [stderr]     34:     0x56217d73496e - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e1f78963e868b7c2e9936e74c2e589643901f2039e682ffbe1b64653420eb4db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1f78963e868b7c2e9936e74c2e589643901f2039e682ffbe1b64653420eb4db", kill_on_drop: false }`
[INFO] [stdout] e1f78963e868b7c2e9936e74c2e589643901f2039e682ffbe1b64653420eb4db