[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-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/exosite/audit-snitch"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/exosite/audit-snitch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/exosite/audit-snitch" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/exosite/audit-snitch"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/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#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of exosite/audit-snitch on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-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-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/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-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking exosite/audit-snitch against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-2/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ac5cf26b9784dbb460b79d984d2a4d1dd25bed8d6a8ade1c7eae45395a9b6a09
[INFO] running `"docker" "start" "-a" "ac5cf26b9784dbb460b79d984d2a4d1dd25bed8d6a8ade1c7eae45395a9b6a09"`
[INFO] [stderr]    Compiling openssl v0.9.14
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]     Checking slog v2.0.6
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking isatty v0.1.3
[INFO] [stderr]     Checking socket2 v0.2.1
[INFO] [stderr]     Checking toml v0.4.2
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking chan v0.1.19
[INFO] [stderr]    Compiling openssl-sys v0.9.14
[INFO] [stderr]    Compiling serde_derive v1.0.9
[INFO] [stderr]     Checking curl v0.4.7
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]    Compiling protoc-rust v1.4.1
[INFO] [stderr]     Checking slog-async v2.0.1
[INFO] [stderr]     Checking chan-signal v0.2.0
[INFO] [stderr]     Checking slog-term v2.0.2
[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-66a60c22312d7370/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:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55cd63f26b2b - backtrace::backtrace::libunwind::trace::h0c70a293f076b04d
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55cd63f26b2b - backtrace::backtrace::trace_unsynchronized::h1bc693e29cfaa7b4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55cd63f26b2b - std::sys_common::backtrace::_print::h8e9bb00be68d4090
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55cd63f26b2b - std::sys_common::backtrace::print::h706192507dd9d34d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55cd63f26b2b - std::panicking::default_hook::{{closure}}::he2b558091ea21dea
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x55cd63f26807 - std::panicking::default_hook::hfb9d48d2b8aaf0f5
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x55cd63f271f0 - std::panicking::rust_panic_with_hook::h56bb6d26ac5aac90
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x55cd63f26d72 - std::panicking::continue_panic_fmt::h360cf8419afe0564
[INFO] [stderr]                                at src/libstd/panicking.rs:382
[INFO] [stderr]    8:     0x55cd63f26c56 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:309
[INFO] [stderr]    9:     0x55cd63f443dd - core::panicking::panic_fmt::h9cf93b79d5aa98c5
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55cd63f0e1b8 - core::result::unwrap_failed::he817455f4d21c877
[INFO] [stderr]                                at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libcore/macros.rs:18
[INFO] [stderr]   11:     0x55cd63c5fea7 - core::result::Result<T,E>::expect::h58c8eafe178c2096
[INFO] [stderr]                                at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libcore/result.rs:827
[INFO] [stderr]   12:     0x55cd63c5ff5b - build_script_build::main::h30b01d2d96404e23
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:13
[INFO] [stderr]   13:     0x55cd63c5fbc0 - std::rt::lang_start::{{closure}}::hea78d53e9c4578a2
[INFO] [stderr]                                at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55cd63f26c43 - std::rt::lang_start_internal::{{closure}}::h868ef2b3c3a15fff
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x55cd63f26c43 - std::panicking::try::do_call::h4528fe5c5ea34ef8
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   16:     0x55cd63f2db6a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   17:     0x55cd63f276fd - std::panicking::try::ha87d5378c5dcb863
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   18:     0x55cd63f276fd - std::panic::catch_unwind::hf01b748a30fdd5ec
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   19:     0x55cd63f276fd - std::rt::lang_start_internal::h9518341cf2ad1d33
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x55cd63c5fb99 - std::rt::lang_start::h815a05a3e95f50e9
[INFO] [stderr]                                at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55cd63c6033a - main
[INFO] [stderr]   22:     0x7fca2b9402e1 - __libc_start_main
[INFO] [stderr]   23:     0x55cd63c5fa0a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "ac5cf26b9784dbb460b79d984d2a4d1dd25bed8d6a8ade1c7eae45395a9b6a09"`
[INFO] running `"docker" "rm" "-f" "ac5cf26b9784dbb460b79d984d2a4d1dd25bed8d6a8ade1c7eae45395a9b6a09"`
[INFO] [stdout] ac5cf26b9784dbb460b79d984d2a4d1dd25bed8d6a8ade1c7eae45395a9b6a09