[INFO] cloning repository https://github.com/bbigras/test-proto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bbigras/test-proto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbigras%2Ftest-proto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbigras%2Ftest-proto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa40250ec10500a2c4bf9638c89b32864897acb0
[INFO] checking bbigras/test-proto against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbigras%2Ftest-proto" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bbigras/test-proto on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bbigras/test-proto
[INFO] finished tweaking git repo https://github.com/bbigras/test-proto
[INFO] tweaked toml for git repo https://github.com/bbigras/test-proto written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/bbigras/test-proto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc-rust-grpc v0.6.2
[INFO] [stderr]   Downloaded grpc-compiler v0.6.2
[INFO] [stderr]   Downloaded protoc v2.8.2
[INFO] [stderr]   Downloaded protoc-rust v2.8.2
[INFO] [stderr]   Downloaded protobuf-codegen v2.8.2
[INFO] [stderr]   Downloaded protobuf v2.8.2
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67c4fc40a9054634a954036d8f3a7912e25e355a877d4f9ab005186066301f20
[INFO] running `Command { std: "docker" "start" "-a" "67c4fc40a9054634a954036d8f3a7912e25e355a877d4f9ab005186066301f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67c4fc40a9054634a954036d8f3a7912e25e355a877d4f9ab005186066301f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67c4fc40a9054634a954036d8f3a7912e25e355a877d4f9ab005186066301f20", kill_on_drop: false }`
[INFO] [stdout] 67c4fc40a9054634a954036d8f3a7912e25e355a877d4f9ab005186066301f20
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f60d5f3fad8b2955f5ef5cddf1f95136e6733ecb4aa5bfd999dbe148888f40f5
[INFO] running `Command { std: "docker" "start" "-a" "f60d5f3fad8b2955f5ef5cddf1f95136e6733ecb4aa5bfd999dbe148888f40f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling protobuf v2.8.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling protoc v2.8.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling protobuf-codegen v2.8.2
[INFO] [stderr]    Compiling protoc-rust v2.8.2
[INFO] [stderr]    Compiling grpc-compiler v0.6.2
[INFO] [stderr]    Compiling protoc-rust-grpc v0.6.2
[INFO] [stderr]    Compiling test-proto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `test-proto v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/test-proto-9e3b4ed2dae31947/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'protoc-rust-grpc: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', build.rs:11:6
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55c1becbd7f0 - std::backtrace_rs::backtrace::libunwind::trace::h4e80f45db05e9df0
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55c1becbd7f0 - std::backtrace_rs::backtrace::trace_unsynchronized::h9db62a3d3587f6c3
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55c1becbd7f0 - std::sys_common::backtrace::_print_fmt::h2fafbe52c9090591
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55c1becbd7f0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7d41ae04358c516d
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55c1bece263c - core::fmt::write::h968e6400cbc51d6a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x55c1becbadf5 - std::io::Write::write_fmt::h2eaa97c6f8c9e829
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/io/mod.rs:1642:15
[INFO] [stderr]      6:     0x55c1becbf94b - std::sys_common::backtrace::_print::h601a6bc581f240d5
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55c1becbf94b - std::sys_common::backtrace::print::h8b96e15ba64b8e64
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55c1becbf94b - std::panicking::default_hook::{{closure}}::h94fa9d2f08c20620
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55c1becbf421 - std::panicking::default_hook::h6d463f5a2e9d9986
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55c1becc0014 - std::panicking::rust_panic_with_hook::h1e953652a338573e
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55c1becbfaf7 - std::panicking::begin_panic_handler::{{closure}}::h78bf2fec525c238a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x55c1becbdcec - std::sys_common::backtrace::__rust_end_short_backtrace::h651eb6282e4ea6b2
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55c1becbfa59 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x55c1bea22541 - core::panicking::panic_fmt::hdfd0360cedf2d908
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55c1bea22633 - core::result::unwrap_failed::hc9085c7b2fddd31a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x55c1bea23189 - core::result::Result<T,E>::expect::ha6d9e8ad866f4be7
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x55c1bea22f0f - build_script_build::main::hdc146ec38fd64bbb
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:4:5
[INFO] [stderr]     18:     0x55c1bea22deb - core::ops::function::FnOnce::call_once::h5a5b2bd4432b35f4
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55c1bea230ce - std::sys_common::backtrace::__rust_begin_short_backtrace::h06e800d9d4fc5134
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x55c1bea230a1 - std::rt::lang_start::{{closure}}::h2f01db8afbcdf52e
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:63:18
[INFO] [stderr]     21:     0x55c1becc051a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hccffb0872f46e99d
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55c1becc051a - std::panicking::try::do_call::h814e0410256bb9f2
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x55c1becc051a - std::panicking::try::h97cbec2057cc2c0d
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x55c1becc051a - std::panic::catch_unwind::h964f35f6fa41d1d7
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panic.rs:434:14
[INFO] [stderr]     25:     0x55c1becc051a - std::rt::lang_start_internal::{{closure}}::hb97931cf27086d8b
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:45:48
[INFO] [stderr]     26:     0x55c1becc051a - std::panicking::try::do_call::hf0d61be342e8297a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:401:40
[INFO] [stderr]     27:     0x55c1becc051a - std::panicking::try::h6b40eeb22db57b23
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:365:19
[INFO] [stderr]     28:     0x55c1becc051a - std::panic::catch_unwind::h425af95fffdb0cf5
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panic.rs:434:14
[INFO] [stderr]     29:     0x55c1becc051a - std::rt::lang_start_internal::h21e355575f2fedc7
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:45:20
[INFO] [stderr]     30:     0x55c1bea23070 - std::rt::lang_start::h876a8dea70f5bd83
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:62:5
[INFO] [stderr]     31:     0x55c1bea22f3c - main
[INFO] [stderr]     32:     0x7fca86e150b3 - __libc_start_main
[INFO] [stderr]     33:     0x55c1bea22cfe - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "f60d5f3fad8b2955f5ef5cddf1f95136e6733ecb4aa5bfd999dbe148888f40f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f60d5f3fad8b2955f5ef5cddf1f95136e6733ecb4aa5bfd999dbe148888f40f5", kill_on_drop: false }`
[INFO] [stdout] f60d5f3fad8b2955f5ef5cddf1f95136e6733ecb4aa5bfd999dbe148888f40f5