[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#426a60abc213b28a7c7198e475476b6e650d871f for pr-129199
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fprotoc-rust-bug-repro" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgallagher/protoc-rust-bug-repro on toolchain 426a60abc213b28a7c7198e475476b6e650d871f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+426a60abc213b28a7c7198e475476b6e650d871f" "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-4-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" "+426a60abc213b28a7c7198e475476b6e650d871f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking jgallagher/protoc-rust-bug-repro against try#2c70eb47850052381670935f807d41647a7dc992 for pr-129199
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fprotoc-rust-bug-repro" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgallagher/protoc-rust-bug-repro on toolchain 2c70eb47850052381670935f807d41647a7dc992
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c70eb47850052381670935f807d41647a7dc992" "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-4-tc2/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" "+2c70eb47850052381670935f807d41647a7dc992" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+2c70eb47850052381670935f807d41647a7dc992" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a24c97640d6df7686fb79a6b6a96c0557f2428b736343e8f108ee874624e1ea9
[INFO] running `Command { std: "docker" "start" "-a" "a24c97640d6df7686fb79a6b6a96c0557f2428b736343e8f108ee874624e1ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a24c97640d6df7686fb79a6b6a96c0557f2428b736343e8f108ee874624e1ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24c97640d6df7686fb79a6b6a96c0557f2428b736343e8f108ee874624e1ea9", kill_on_drop: false }`
[INFO] [stdout] a24c97640d6df7686fb79a6b6a96c0557f2428b736343e8f108ee874624e1ea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+2c70eb47850052381670935f807d41647a7dc992" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e494cfde74cca5d1f6d42a6563e2962087ccea99ddfc7c43060d8a1988e253d
[INFO] running `Command { std: "docker" "start" "-a" "1e494cfde74cca5d1f6d42a6563e2962087ccea99ddfc7c43060d8a1988e253d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling protobuf v2.25.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling log v0.4.14
[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-5a4812cb81fa9528/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]   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:     0x55e07465a3ad - std::backtrace_rs::backtrace::libunwind::trace::h30f93617b0bcec40
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x55e07465a3ad - std::backtrace_rs::backtrace::trace_unsynchronized::h57a63fc818b7c9c7
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e07465a3ad - std::sys::backtrace::_print_fmt::hbb6a843f2ed2b04c
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x55e07465a3ad - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hfc49c715c7b4f588
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x55e074682f7b - core::fmt::rt::Argument::fmt::hd1d0db7b0335825c
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x55e074682f7b - core::fmt::write::h7f33d813cddec5e5
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/core/src/fmt/mod.rs:1178:21
[INFO] [stderr]      6:     0x55e0746574b3 - std::io::Write::write_fmt::ha580048df2298b93
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/io/mod.rs:1823:15
[INFO] [stderr]      7:     0x55e07465b5e2 - std::sys::backtrace::BacktraceLock::print::hfdfdd90e08128465
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x55e07465b5e2 - std::panicking::default_hook::{{closure}}::h909c299cc9457b48
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:266:22
[INFO] [stderr]      9:     0x55e07465b24e - std::panicking::default_hook::h33e66e7822520161
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:293:9
[INFO] [stderr]     10:     0x55e07465be8f - std::panicking::rust_panic_with_hook::h22d1b7a68ed046fd
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:797:13
[INFO] [stderr]     11:     0x55e07465bb77 - std::panicking::begin_panic_handler::{{closure}}::h59c8f91063d1a8de
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:671:13
[INFO] [stderr]     12:     0x55e07465a899 - std::sys::backtrace::__rust_end_short_backtrace::h7731f7d29b22fd7a
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x55e07465b804 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:662:5
[INFO] [stderr]     14:     0x55e074680ca3 - core::panicking::panic_fmt::h6dc22ac54667825d
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/core/src/panicking.rs:74:14
[INFO] [stderr]     15:     0x55e0746811b6 - core::result::unwrap_failed::h364eb31e4bb70620
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/core/src/result.rs:1679:5
[INFO] [stderr]     16:     0x55e07448aa93 - core::result::Result<T,E>::expect::hc703384af096d83d
[INFO] [stderr]     17:     0x55e07448abb3 - build_script_build::main::h146f14bb8719c48f
[INFO] [stderr]     18:     0x55e07448aa23 - core::ops::function::FnOnce::call_once::hbb45d5e0a5e43c5a
[INFO] [stderr]     19:     0x55e07448a9c6 - std::sys::backtrace::__rust_begin_short_backtrace::h315b21102554f7d9
[INFO] [stderr]     20:     0x55e07448a9a9 - std::rt::lang_start::{{closure}}::h6cbc53393a85eae8
[INFO] [stderr]     21:     0x55e074653620 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1170d95bae8b5353
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     22:     0x55e074653620 - std::panicking::try::do_call::h2faab087b5fbc520
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:554:40
[INFO] [stderr]     23:     0x55e074653620 - std::panicking::try::ha37d483a99d3b100
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:518:19
[INFO] [stderr]     24:     0x55e074653620 - std::panic::catch_unwind::hb6d575a3ed818161
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panic.rs:345:14
[INFO] [stderr]     25:     0x55e074653620 - std::rt::lang_start_internal::{{closure}}::hcb0ad4ddd4d9e963
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/rt.rs:143:48
[INFO] [stderr]     26:     0x55e074653620 - std::panicking::try::do_call::he2a69faa96e1cbd2
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:554:40
[INFO] [stderr]     27:     0x55e074653620 - std::panicking::try::h8d41b068517e0f06
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panicking.rs:518:19
[INFO] [stderr]     28:     0x55e074653620 - std::panic::catch_unwind::h99a0aeb7c2a21fc5
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/panic.rs:345:14
[INFO] [stderr]     29:     0x55e074653620 - std::rt::lang_start_internal::h772311c3b711ce18
[INFO] [stderr]                                  at /rustc/2c70eb47850052381670935f807d41647a7dc992/library/std/src/rt.rs:143:20
[INFO] [stderr]     30:     0x55e07448a987 - std::rt::lang_start::h71736f508d4b8be2
[INFO] [stderr]     31:     0x55e07448abf5 - main
[INFO] [stderr]     32:     0x7fe728721d90 - <unknown>
[INFO] [stderr]     33:     0x7fe728721e40 - __libc_start_main
[INFO] [stderr]     34:     0x55e07448a7f5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "1e494cfde74cca5d1f6d42a6563e2962087ccea99ddfc7c43060d8a1988e253d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e494cfde74cca5d1f6d42a6563e2962087ccea99ddfc7c43060d8a1988e253d", kill_on_drop: false }`
[INFO] [stdout] 1e494cfde74cca5d1f6d42a6563e2962087ccea99ddfc7c43060d8a1988e253d