[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 try#f27166d4c64dc29edc5ea3214357f191edf8b635 for pr-148329
[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] 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] validating manifest of git repo https://github.com/jgallagher/protoc-rust-bug-repro on toolchain f27166d4c64dc29edc5ea3214357f191edf8b635
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc-rust v2.25.2
[INFO] [stderr]   Downloaded which v4.2.2
[INFO] [stderr]   Downloaded protoc v2.25.2
[INFO] [stderr]   Downloaded protobuf-codegen v2.25.2
[INFO] [stderr]   Downloaded protobuf v2.25.2
[INFO] [stderr]   Downloaded libc v0.2.106
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2ba90c19d82d2503a8b3460f26eeb17f65d63d357fdc659dfc01a669fd88d4f
[INFO] running `Command { std: "docker" "start" "-a" "b2ba90c19d82d2503a8b3460f26eeb17f65d63d357fdc659dfc01a669fd88d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2ba90c19d82d2503a8b3460f26eeb17f65d63d357fdc659dfc01a669fd88d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ba90c19d82d2503a8b3460f26eeb17f65d63d357fdc659dfc01a669fd88d4f", kill_on_drop: false }`
[INFO] [stdout] b2ba90c19d82d2503a8b3460f26eeb17f65d63d357fdc659dfc01a669fd88d4f
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a436a244bfad4e201cef1691485e8d108f31b34455833d1c82b1ba1bd4ec9d39
[INFO] running `Command { std: "docker" "start" "-a" "a436a244bfad4e201cef1691485e8d108f31b34455833d1c82b1ba1bd4ec9d39", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling protobuf v2.25.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling protoc v2.25.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[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-45cf8484ae561e1a/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' (267) 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:     0x6349a28b1272 - std::backtrace_rs::backtrace::libunwind::trace::h1447ebb0f5d97423
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x6349a28b1272 - std::backtrace_rs::backtrace::trace_unsynchronized::hd8ef8450cacdcb00
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x6349a28b1272 - std::sys::backtrace::_print_fmt::h76eb6aced73cb1a6
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x6349a28b1272 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hf32b9a4d7980e15a
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x6349a28c2def - core::fmt::rt::Argument::fmt::h33c8984017ba1f8c
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x6349a28c2def - core::fmt::write::h8a217dde4af02f7f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x6349a2884a63 - std::io::default_write_fmt::h7dacff71da12430f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x6349a2884a63 - std::io::Write::write_fmt::he9093adb4c5a08ae
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x6349a288ed82 - std::sys::backtrace::BacktraceLock::print::hb24323430264831a
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x6349a2890f0c - std::panicking::default_hook::{{closure}}::h5964864ba4b80ee8
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x6349a2890d66 - std::panicking::default_hook::hd270293f3c8732bd
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x6349a28914e5 - std::panicking::panic_with_hook::hef5599d5dbb80493
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x6349a289137a - std::panicking::panic_handler::{{closure}}::h2bca71bb385a23e1
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x6349a288eeb9 - std::sys::backtrace::__rust_end_short_backtrace::h28d2ec1d48b41db7
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x6349a2878d1d - __rustc[78154d2c4a188ef5]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x6349a28cc0f0 - core::panicking::panic_fmt::ha99ab4e5275b5df2
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x6349a28cb5d6 - core::result::unwrap_failed::h3c21b9c73096ba6f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x6349a26da320 - core::result::Result<T,E>::expect::h528865bea14c7044
[INFO] [stderr]     18:     0x6349a26da1d3 - build_script_build::main::hd0cf7b02eeafdfc1
[INFO] [stderr]     19:     0x6349a26da273 - core::ops::function::FnOnce::call_once::h3b204ecc637c54ae
[INFO] [stderr]     20:     0x6349a26da256 - std::sys::backtrace::__rust_begin_short_backtrace::hb64c3f512b12484d
[INFO] [stderr]     21:     0x6349a26da239 - std::rt::lang_start::{{closure}}::h7521c6a32b32357d
[INFO] [stderr]     22:     0x6349a2886120 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h9c35f14e6882b8d3
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x6349a2886120 - std::panicking::catch_unwind::do_call::h924defc6f5f6a4b2
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x6349a2886120 - std::panicking::catch_unwind::h9243fb64bbc98b5f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x6349a2886120 - std::panic::catch_unwind::hb4c2656a96eb9a02
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x6349a2886120 - std::rt::lang_start_internal::{{closure}}::h6935cf67d242f3ab
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x6349a2886120 - std::panicking::catch_unwind::do_call::h8408aa62219a7189
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x6349a2886120 - std::panicking::catch_unwind::h12ce845e8bca9588
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x6349a2886120 - std::panic::catch_unwind::hcc9c44d1fc83fcf0
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x6349a2886120 - std::rt::lang_start_internal::hafc6ca5f994fb87e
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x6349a26da221 - std::rt::lang_start::hc0a806d3079adfe3
[INFO] [stderr]     32:     0x6349a26da385 - main
[INFO] [stderr]     33:     0x723b9b1c91ca - <unknown>
[INFO] [stderr]     34:     0x723b9b1c928b - __libc_start_main
[INFO] [stderr]     35:     0x6349a26d9f95 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "a436a244bfad4e201cef1691485e8d108f31b34455833d1c82b1ba1bd4ec9d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a436a244bfad4e201cef1691485e8d108f31b34455833d1c82b1ba1bd4ec9d39", kill_on_drop: false }`
[INFO] [stdout] a436a244bfad4e201cef1691485e8d108f31b34455833d1c82b1ba1bd4ec9d39