[INFO] updating cached repository https://github.com/jakubadamw/rust-protobuf-414
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f4e3c3e188c0045b865bd42fedd0066f5a17c2d1
[INFO] checking jakubadamw/rust-protobuf-414 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubadamw%2Frust-protobuf-414" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakubadamw/rust-protobuf-414 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jakubadamw/rust-protobuf-414
[INFO] finished tweaking git repo https://github.com/jakubadamw/rust-protobuf-414
[INFO] tweaked toml for git repo https://github.com/jakubadamw/rust-protobuf-414 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jakubadamw/rust-protobuf-414 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e4e68d1e6939f2b687b8a69e4b918d015d2dde701aaf66a8bd91aeb7e73b01a7
[INFO] running `"docker" "start" "-a" "e4e68d1e6939f2b687b8a69e4b918d015d2dde701aaf66a8bd91aeb7e73b01a7"`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling protobuf v2.7.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling protoc v2.7.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling protobuf-codegen v2.7.0
[INFO] [stderr]    Compiling protoc-rust v2.7.0
[INFO] [stderr]    Compiling reproduction_414 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `reproduction_414 v0.0.1 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/reproduction_414-6e4ef6d159de6be1/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] [libprotobuf WARNING google/protobuf/compiler/parser.cc:547] No syntax specified for the proto file: example.proto. Please use 'syntax = "proto2";' or 'syntax = "proto3";' to specify a syntax version. (Defaulted to proto2 syntax.)
[INFO] [stderr] thread 'main' panicked at 'protoc: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:6:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56538b5e7b14 - backtrace::backtrace::libunwind::trace::hda902e3a4eb9d449
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x56538b5e7b14 - backtrace::backtrace::trace_unsynchronized::h06df0062bb63b7e2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56538b5e7b14 - std::sys_common::backtrace::_print_fmt::ha5249daf78f399e8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x56538b5e7b14 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h68243ef2eafa8843
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x56538b61245c - core::fmt::write::h8b50d07b82ae3922
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x56538b5e4fc3 - std::io::Write::write_fmt::h9a5b9a212b705549
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x56538b5ea625 - std::sys_common::backtrace::_print::hcd11fe8eb9e7335d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x56538b5ea625 - std::sys_common::backtrace::print::h475286256f91474c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x56538b5ea625 - std::panicking::default_hook::{{closure}}::h2a45e9d6ef27161b
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x56538b5ea362 - std::panicking::default_hook::h76adec688b27abdd
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x56538b5eac32 - std::panicking::rust_panic_with_hook::h121f4f2c52efbcbf
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x56538b5ea81b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x56538b610501 - core::panicking::panic_fmt::hee64f597d93665b6
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x56538b610323 - core::option::expect_none_failed::h90fed74f6e49bf90
[INFO] [stderr]                                at src/libcore/option.rs:1268
[INFO] [stderr]   14:     0x56538b324f8f - core::result::Result<T,E>::expect::h3cc5571d62944536
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x56538b324ed5 - build_script_build::main::hc462529b2d9bdb56
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:6
[INFO] [stderr]   16:     0x56538b32514b - std::rt::lang_start::{{closure}}::hf59bafb1d377f767
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x56538b5eb078 - std::rt::lang_start_internal::{{closure}}::h15b56bd7f81214ad
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x56538b5eb078 - std::panicking::try::do_call::hbe8467da291bc822
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   19:     0x56538b5eb078 - std::panicking::try::hde3b5cbc6989304d
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x56538b5eb078 - std::panic::catch_unwind::h56844acb323fdd6c
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x56538b5eb078 - std::rt::lang_start_internal::hae379591a9420b87
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x56538b325127 - std::rt::lang_start::h42f924039d146085
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x56538b324f0a - main
[INFO] [stderr]   24:     0x7f32950ceb97 - __libc_start_main
[INFO] [stderr]   25:     0x56538b324c8a - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "e4e68d1e6939f2b687b8a69e4b918d015d2dde701aaf66a8bd91aeb7e73b01a7"`
[INFO] running `"docker" "rm" "-f" "e4e68d1e6939f2b687b8a69e4b918d015d2dde701aaf66a8bd91aeb7e73b01a7"`
[INFO] [stdout] e4e68d1e6939f2b687b8a69e4b918d015d2dde701aaf66a8bd91aeb7e73b01a7
