[INFO] fetching crate sysadmin-bindings 2.1.0...
[INFO] extracting crate sysadmin-bindings 2.1.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/sysadmin-bindings/2.1.0
[INFO] extracting crate sysadmin-bindings 2.1.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/sysadmin-bindings/2.1.0
[INFO] validating manifest of sysadmin-bindings-2.1.0 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sysadmin-bindings-2.1.0 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sysadmin-bindings-2.1.0
[INFO] finished frobbing sysadmin-bindings-2.1.0
[INFO] frobbed toml for sysadmin-bindings-2.1.0 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/sysadmin-bindings/2.1.0/Cargo.toml
[INFO] started frobbing sysadmin-bindings-2.1.0
[INFO] finished frobbing sysadmin-bindings-2.1.0
[INFO] frobbed toml for sysadmin-bindings-2.1.0 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/sysadmin-bindings/2.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc-rust v1.4.5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sysadmin-bindings-2.1.0 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-0/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/sysadmin-bindings/2.1.0:/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=forbid" "-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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bde3c75d84220134b99ac6788279128657807f6dd27e890fd4ac4d2dd59664a0
[INFO] running `"docker" "start" "-a" "bde3c75d84220134b99ac6788279128657807f6dd27e890fd4ac4d2dd59664a0"`
[INFO] [stderr]    Compiling protobuf v1.4.5
[INFO] [stderr]    Compiling protoc v1.7.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling protoc-rust v1.4.5
[INFO] [stderr]    Compiling sysadmin-bindings v2.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `sysadmin-bindings v2.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/sysadmin-bindings-456de8ca7daa9866/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] current dir: "/opt/crater/workdir"
[INFO] [stderr] "cratesfyi" found in path: false
[INFO] [stderr] systemctl.rs path: "/opt/crater/workdir/src/sysadminctl.rs"
[INFO] [stderr] systemctl.rs exists:  true
[INFO] [stderr] This doesn't look like "cargo doc" so any panics will be unwound.
[INFO] [stderr] Panics encountered!
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'protoc: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55956ad22eeb - backtrace::backtrace::libunwind::trace::h00e2f01ca6755a19
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55956ad22eeb - backtrace::backtrace::trace_unsynchronized::hc2e55f9123c24578
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55956ad22eeb - std::sys_common::backtrace::_print::h878d975ca669e1b4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55956ad22eeb - std::sys_common::backtrace::print::h1b2f6b4885b021f3
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55956ad22eeb - std::panicking::default_hook::{{closure}}::he9ab19abef5c787f
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x55956ad22bec - std::panicking::default_hook::h9b73316e8577c3fa
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x55956ad23610 - std::panicking::rust_panic_with_hook::he062866264d328c5
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x55956ad23192 - std::panicking::continue_panic_fmt::hd91e15ffe4fde332
[INFO] [stderr]                                at src/libstd/panicking.rs:382
[INFO] [stderr]    8:     0x55956ad23076 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:309
[INFO] [stderr]    9:     0x55956ad40ead - core::panicking::panic_fmt::h684eb94a03e3ec1d
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55956ad01e48 - core::result::unwrap_failed::hc80607557406aa81
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libcore/macros.rs:18
[INFO] [stderr]   11:     0x55956aa57ad7 - core::result::Result<T,E>::expect::h02279c0678e942d1
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libcore/result.rs:827
[INFO] [stderr]   12:     0x55956aa55fb1 - build_script_build::main::{{closure}}::h977148378e9e7e86
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:59
[INFO] [stderr]   13:     0x55956aa57485 - std::panicking::try::do_call::h4d42e66ebbf70401
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/panicking.rs:294
[INFO] [stderr]   14:     0x55956ad2a63a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   15:     0x55956aa572c9 - std::panicking::try::h79be072adda2ea9f
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/panicking.rs:273
[INFO] [stderr]   16:     0x55956aa57152 - std::panic::catch_unwind::hfb761195521ab0db
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/panic.rs:388
[INFO] [stderr]   17:     0x55956aa55af3 - build_script_build::main::h1d35fce27c7c4a29
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:58
[INFO] [stderr]   18:     0x55956aa57fe0 - std::rt::lang_start::{{closure}}::h659564f2efc80e59
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x55956ad23063 - std::rt::lang_start_internal::{{closure}}::hac4055a4b24c3806
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   20:     0x55956ad23063 - std::panicking::try::do_call::h0bdfdef338a7b8de
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   21:     0x55956ad2a63a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   22:     0x55956ad23bdd - std::panicking::try::h5986cc11523af350
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   23:     0x55956ad23bdd - std::panic::catch_unwind::h5e6e2d11127cecca
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   24:     0x55956ad23bdd - std::rt::lang_start_internal::hd1ad303a81183dc4
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   25:     0x55956aa57fb9 - std::rt::lang_start::hbe93f1ed6c742e3e
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64
[INFO] [stderr]   26:     0x55956aa55fea - main
[INFO] [stderr]   27:     0x7f1c9ab6c2e1 - __libc_start_main
[INFO] [stderr]   28:     0x55956aa5538a - _start
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "bde3c75d84220134b99ac6788279128657807f6dd27e890fd4ac4d2dd59664a0"`
[INFO] running `"docker" "rm" "-f" "bde3c75d84220134b99ac6788279128657807f6dd27e890fd4ac4d2dd59664a0"`
[INFO] [stdout] bde3c75d84220134b99ac6788279128657807f6dd27e890fd4ac4d2dd59664a0