[INFO] updating cached repository exosite/audit-snitch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/exosite/audit-snitch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/exosite/audit-snitch" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/exosite/audit-snitch"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/exosite/audit-snitch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/exosite/audit-snitch" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/exosite/audit-snitch"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/exosite/audit-snitch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6df83c845ff04384381d592e5a3463823c3a17e0
[INFO] sha for GitHub repo exosite/audit-snitch: 6df83c845ff04384381d592e5a3463823c3a17e0
[INFO] validating manifest of exosite/audit-snitch on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of exosite/audit-snitch on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing exosite/audit-snitch
[INFO] finished frobbing exosite/audit-snitch
[INFO] frobbed toml for exosite/audit-snitch written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/exosite/audit-snitch/Cargo.toml
[INFO] started frobbing exosite/audit-snitch
[INFO] finished frobbing exosite/audit-snitch
[INFO] frobbed toml for exosite/audit-snitch written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/exosite/audit-snitch/Cargo.toml
[INFO] crate exosite/audit-snitch already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking exosite/audit-snitch against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-5/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/exosite/audit-snitch:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 868c235d0fc1caf70ff7bebae2778d5d96b31556b54540d046fd0f7f1289b4bb
[INFO] running `"docker" "start" "-a" "868c235d0fc1caf70ff7bebae2778d5d96b31556b54540d046fd0f7f1289b4bb"`
[INFO] [stderr]    Compiling openssl v0.9.14
[INFO] [stderr]    Compiling protobuf v1.4.1
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]     Checking slog v2.0.6
[INFO] [stderr]    Compiling protoc v1.4.1
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking isatty v0.1.3
[INFO] [stderr]     Checking socket2 v0.2.1
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking chan v0.1.19
[INFO] [stderr]    Compiling openssl-sys v0.9.14
[INFO] [stderr]     Checking slog-async v2.0.1
[INFO] [stderr]     Checking curl-sys v0.3.14
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking chan-signal v0.2.0
[INFO] [stderr]     Checking curl v0.4.7
[INFO] [stderr]     Checking slog-term v2.0.2
[INFO] [stderr]    Compiling protoc-rust v1.4.1
[INFO] [stderr]    Compiling audit-snitch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `audit-snitch v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/audit-snitch-c91db2ae4c348917/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'protoc: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1084:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x563b1007e5fb - backtrace::backtrace::libunwind::trace::h5d27dcba3b250cfe
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x563b1007e5fb - backtrace::backtrace::trace_unsynchronized::h239341a8b1cadbab
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x563b1007e5fb - std::sys_common::backtrace::_print::hb0e5dd39180a1838
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x563b1007e5fb - std::sys_common::backtrace::print::h9b385b2285f057b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x563b1007e5fb - std::panicking::default_hook::{{closure}}::he3310a15a78966b4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x563b1007e2d6 - std::panicking::default_hook::h2986f418df62eff4
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x563b1007ecbd - std::panicking::rust_panic_with_hook::h15065386631d2a9d
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x563b1007e842 - std::panicking::continue_panic_fmt::h5e7761875fda3864
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x563b1007e726 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x563b1009bdcd - core::panicking::panic_fmt::ha57541b4d360b196
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x563b1009bec7 - core::result::unwrap_failed::h30a7262287ea7c1e
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x563b0fdbd699 - core::result::Result<T,E>::expect::hfafc3e80120aeb39
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libcore/result.rs:879
[INFO] [stderr]   12:     0x563b0fdbd92f - build_script_build::main::hbe424b769479e27b
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:13
[INFO] [stderr]   13:     0x563b0fdbd5b0 - std::rt::lang_start::{{closure}}::h2f7eea8eb55df52a
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x563b1007e713 - std::rt::lang_start_internal::{{closure}}::hbf4603a1e6e1424d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x563b1007e713 - std::panicking::try::do_call::h7642e0de797eeae0
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x563b1008565a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x563b1007f1cd - std::panicking::try::h17f145530f8b5a3f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x563b1007f1cd - std::panic::catch_unwind::hcee1b9b07ea0f9dc
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x563b1007f1cd - std::rt::lang_start_internal::h82d44298f58b2cfd
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x563b0fdbd589 - std::rt::lang_start::hc98d7d208c678896
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x563b0fdbdcfa - main
[INFO] [stderr]   22:     0x7f54819682e1 - __libc_start_main
[INFO] [stderr]   23:     0x563b0fdbd3da - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "868c235d0fc1caf70ff7bebae2778d5d96b31556b54540d046fd0f7f1289b4bb"`
[INFO] running `"docker" "rm" "-f" "868c235d0fc1caf70ff7bebae2778d5d96b31556b54540d046fd0f7f1289b4bb"`
[INFO] [stdout] 868c235d0fc1caf70ff7bebae2778d5d96b31556b54540d046fd0f7f1289b4bb