[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-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/exosite/audit-snitch"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/exosite/audit-snitch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/exosite/audit-snitch" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/exosite/audit-snitch"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of exosite/audit-snitch on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-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-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/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-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking exosite/audit-snitch against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] af2667bd8e2089be311a1b6d0bc4d790d2c9c51db9cf5e23b0dd5408c7c6743d
[INFO] running `"docker" "start" "-a" "af2667bd8e2089be311a1b6d0bc4d790d2c9c51db9cf5e23b0dd5408c7c6743d"`
[INFO] [stderr]    Compiling openssl v0.9.14
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]    Compiling protobuf v1.4.1
[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]     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]     Checking libz-sys v1.0.16
[INFO] [stderr]     Checking slog-async v2.0.1
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking curl-sys v0.3.14
[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-a4df03c310643fbe/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:     0x561c50c744bb - backtrace::backtrace::libunwind::trace::h88d9499c2d7e1dbc
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x561c50c744bb - backtrace::backtrace::trace_unsynchronized::h64df3798ffaf338f
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561c50c744bb - std::sys_common::backtrace::_print::h549f3692f8d3f393
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x561c50c744bb - std::sys_common::backtrace::print::h037f1d7e6e0e94de
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x561c50c744bb - std::panicking::default_hook::{{closure}}::h88a39cbd1a8489c9
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x561c50c74196 - std::panicking::default_hook::hdb7c9c6632585072
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x561c50c74b7d - std::panicking::rust_panic_with_hook::h906f2b0ace338868
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x561c50c74702 - std::panicking::continue_panic_fmt::h3597c4d7a66a7e7b
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x561c50c745e6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x561c50c91c8d - core::panicking::panic_fmt::he1729b262db7d0f1
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x561c50c91d87 - core::result::unwrap_failed::h24d6964fca127bdf
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x561c509b3669 - core::result::Result<T,E>::expect::h170e56eccfd0d168
[INFO] [stderr]                                at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libcore/result.rs:879
[INFO] [stderr]   12:     0x561c509b371f - build_script_build::main::hb6f6dc220cc7ab85
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:13
[INFO] [stderr]   13:     0x561c509b3b60 - std::rt::lang_start::{{closure}}::h94f77bf1637dda2c
[INFO] [stderr]                                at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x561c50c745d3 - std::rt::lang_start_internal::{{closure}}::h9ea1b9f2bce8ffef
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x561c50c745d3 - std::panicking::try::do_call::hfbd18154d6e81e0d
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x561c50c7b51a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x561c50c7508d - std::panicking::try::h9cb4b237371abf81
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x561c50c7508d - std::panic::catch_unwind::hd403853a39b4e3c9
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x561c50c7508d - std::rt::lang_start_internal::h7e5e162b169a1510
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x561c509b3b39 - std::rt::lang_start::h91d79a814f29a8e0
[INFO] [stderr]                                at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x561c509b3aea - main
[INFO] [stderr]   22:     0x7f5e1c3f92e1 - __libc_start_main
[INFO] [stderr]   23:     0x561c509b32ba - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "af2667bd8e2089be311a1b6d0bc4d790d2c9c51db9cf5e23b0dd5408c7c6743d"`
[INFO] running `"docker" "rm" "-f" "af2667bd8e2089be311a1b6d0bc4d790d2c9c51db9cf5e23b0dd5408c7c6743d"`
[INFO] [stdout] af2667bd8e2089be311a1b6d0bc4d790d2c9c51db9cf5e23b0dd5408c7c6743d