[INFO] cloning repository https://github.com/jgallagher/protoc-rust-bug-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jgallagher/protoc-rust-bug-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fprotoc-rust-bug-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fprotoc-rust-bug-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c702c16cde1996c3ad986c44861337bd335c55a
[INFO] checking jgallagher/protoc-rust-bug-repro against master#e3e432d4d65a55e6db167598e96db2bcb163e316 for pr-140313
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fprotoc-rust-bug-repro" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgallagher/protoc-rust-bug-repro on toolchain e3e432d4d65a55e6db167598e96db2bcb163e316
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jgallagher/protoc-rust-bug-repro
[INFO] finished tweaking git repo https://github.com/jgallagher/protoc-rust-bug-repro
[INFO] tweaked toml for git repo https://github.com/jgallagher/protoc-rust-bug-repro written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jgallagher/protoc-rust-bug-repro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc-rust v2.25.2
[INFO] [stderr]   Downloaded protobuf-codegen v2.25.2
[INFO] [stderr]   Downloaded protoc v2.25.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93588f038d9f765e6fba6c21e32b25afe46fe398ce4b66112aac0bb3f574f4e3
[INFO] running `Command { std: "docker" "start" "-a" "93588f038d9f765e6fba6c21e32b25afe46fe398ce4b66112aac0bb3f574f4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93588f038d9f765e6fba6c21e32b25afe46fe398ce4b66112aac0bb3f574f4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93588f038d9f765e6fba6c21e32b25afe46fe398ce4b66112aac0bb3f574f4e3", kill_on_drop: false }`
[INFO] [stdout] 93588f038d9f765e6fba6c21e32b25afe46fe398ce4b66112aac0bb3f574f4e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+e3e432d4d65a55e6db167598e96db2bcb163e316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 873e70928f29a80e230cfeb4a9d932786ecf6e7993e783de4c68b8d04403cef2
[INFO] running `Command { std: "docker" "start" "-a" "873e70928f29a80e230cfeb4a9d932786ecf6e7993e783de4c68b8d04403cef2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling protobuf v2.25.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling protoc v2.25.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling protobuf-codegen v2.25.2
[INFO] [stderr]    Compiling protoc-rust v2.25.2
[INFO] [stderr]    Compiling protoc-rust-bug-repro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `protoc-rust-bug-repro v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/protoc-rust-bug-repro-ede73e2989ad5a2a/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=src/BugReproducer.proto
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at build.rs:7:10:
[INFO] [stderr]   failed to codegen BugReproducer.proto: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x61a3e3add332 - std::backtrace_rs::backtrace::libunwind::trace::h3b78c11dbe405740
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x61a3e3add332 - std::backtrace_rs::backtrace::trace_unsynchronized::h8e3ee9e89edfdbd1
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x61a3e3add332 - std::sys::backtrace::_print_fmt::h5e03c20d4a2b55b2
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x61a3e3add332 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h165970d9f8728e3a
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x61a3e3b03e73 - core::fmt::rt::Argument::fmt::hf067dc7afcd843af
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/core/src/fmt/rt.rs:179:76
[INFO] [stderr]      5:     0x61a3e3b03e73 - core::fmt::write::h69f89f3e809f82fb
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/core/src/fmt/mod.rs:1481:25
[INFO] [stderr]      6:     0x61a3e3ada543 - std::io::default_write_fmt::h169807999021ea75
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x61a3e3ada543 - std::io::Write::write_fmt::h495b93be9df13902
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/io/mod.rs:1914:13
[INFO] [stderr]      8:     0x61a3e3add182 - std::sys::backtrace::BacktraceLock::print::h8c91835c5a8ebc68
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x61a3e3ade322 - std::panicking::default_hook::{{closure}}::hcad92d792a3e4835
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:300:22
[INFO] [stderr]     10:     0x61a3e3ade125 - std::panicking::default_hook::hb88c8d98b465a799
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x61a3e3aded02 - std::panicking::rust_panic_with_hook::h89ed4977886d94ef
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x61a3e3adea8a - std::panicking::begin_panic_handler::{{closure}}::haa54601131bb4933
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x61a3e3add829 - std::sys::backtrace::__rust_end_short_backtrace::h9b99f0a015228d21
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x61a3e3ade71d - __rustc[c152bba62fa08f83]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x61a3e3b01c60 - core::panicking::panic_fmt::h299df0a23182621e
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x61a3e3b020c6 - core::result::unwrap_failed::h5630932056357d10
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/core/src/result.rs:1704:5
[INFO] [stderr]     17:     0x61a3e3927180 - core::result::Result<T,E>::expect::hd213fc4908f1d3d7
[INFO] [stderr]     18:     0x61a3e39272a3 - build_script_build::main::h50d46a515ed82adb
[INFO] [stderr]     19:     0x61a3e3927113 - core::ops::function::FnOnce::call_once::hb1e35f1711e3d41a
[INFO] [stderr]     20:     0x61a3e39270b6 - std::sys::backtrace::__rust_begin_short_backtrace::hdf368a3d2406f51a
[INFO] [stderr]     21:     0x61a3e3927099 - std::rt::lang_start::{{closure}}::hf86780a6de069ca8
[INFO] [stderr]     22:     0x61a3e3ad6830 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h198c8964401c50d8
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x61a3e3ad6830 - std::panicking::try::do_call::ha54bbeef14facafb
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:589:40
[INFO] [stderr]     24:     0x61a3e3ad6830 - std::panicking::try::hcfd76469dab57418
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:552:19
[INFO] [stderr]     25:     0x61a3e3ad6830 - std::panic::catch_unwind::h07a346df3fffac26
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x61a3e3ad6830 - std::rt::lang_start_internal::{{closure}}::hf114480669f5045a
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/rt.rs:168:24
[INFO] [stderr]     27:     0x61a3e3ad6830 - std::panicking::try::do_call::h7d6690a97de08278
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:589:40
[INFO] [stderr]     28:     0x61a3e3ad6830 - std::panicking::try::h0473c3407e8227ec
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panicking.rs:552:19
[INFO] [stderr]     29:     0x61a3e3ad6830 - std::panic::catch_unwind::h800a85c6060902d6
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x61a3e3ad6830 - std::rt::lang_start_internal::h6d1c1c7ec3112106
[INFO] [stderr]                                  at /rustc/e3e432d4d65a55e6db167598e96db2bcb163e316/library/std/src/rt.rs:164:5
[INFO] [stderr]     31:     0x61a3e3927081 - std::rt::lang_start::hbeeb0e614fbad1b4
[INFO] [stderr]     32:     0x61a3e39272e5 - main
[INFO] [stderr]     33:     0x7dc835a1d1ca - <unknown>
[INFO] [stderr]     34:     0x7dc835a1d28b - __libc_start_main
[INFO] [stderr]     35:     0x61a3e3926ef5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "873e70928f29a80e230cfeb4a9d932786ecf6e7993e783de4c68b8d04403cef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "873e70928f29a80e230cfeb4a9d932786ecf6e7993e783de4c68b8d04403cef2", kill_on_drop: false }`
[INFO] [stdout] 873e70928f29a80e230cfeb4a9d932786ecf6e7993e783de4c68b8d04403cef2