[INFO] cloning repository https://github.com/zakhenry/mdbook-protobuf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zakhenry/mdbook-protobuf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzakhenry%2Fmdbook-protobuf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzakhenry%2Fmdbook-protobuf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85abd05087337446bd013c61f7eda1fdb49d6ace
[INFO] checking zakhenry/mdbook-protobuf against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzakhenry%2Fmdbook-protobuf" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zakhenry/mdbook-protobuf
[INFO] finished tweaking git repo https://github.com/zakhenry/mdbook-protobuf
[INFO] tweaked toml for git repo https://github.com/zakhenry/mdbook-protobuf written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zakhenry/mdbook-protobuf on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zakhenry/mdbook-protobuf 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded topological-sort v0.2.2
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[INFO] [stderr]   Downloaded prost-build v0.13.2
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.10.1
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[INFO] [stderr]   Downloaded tonic-build v0.12.2
[INFO] [stderr]   Downloaded ammonia v4.0.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.10.3
[INFO] [stderr]   Downloaded hyper v0.14.30
[INFO] [stderr]   Downloaded elasticlunr-rs v3.0.2
[INFO] [stderr]   Downloaded dbus v0.9.7
[INFO] [stderr]   Downloaded mdbook v0.4.40
[INFO] [stderr]   Downloaded tonic v0.12.2
[INFO] [stderr]   Downloaded cc v1.1.19
[INFO] [stderr]   Downloaded libdbus-sys v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 021eef614c0b45d3f3101273ce078e650d55063ff0c9a52b7d1af6a8c01ee61f
[INFO] running `Command { std: "docker" "start" "-a" "021eef614c0b45d3f3101273ce078e650d55063ff0c9a52b7d1af6a8c01ee61f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "021eef614c0b45d3f3101273ce078e650d55063ff0c9a52b7d1af6a8c01ee61f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "021eef614c0b45d3f3101273ce078e650d55063ff0c9a52b7d1af6a8c01ee61f", kill_on_drop: false }`
[INFO] [stdout] 021eef614c0b45d3f3101273ce078e650d55063ff0c9a52b7d1af6a8c01ee61f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0faad02aa89138bc06d57cf60ff0c3faaaaa94927fb8f30b6481ab60a654d96
[INFO] running `Command { std: "docker" "start" "-a" "d0faad02aa89138bc06d57cf60ff0c3faaaaa94927fb8f30b6481ab60a654d96", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
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[INFO] [stderr]    Compiling pest v2.7.12
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[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking prost v0.13.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling pest_meta v2.7.12
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking prost-types v0.13.2
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[INFO] [stderr]    Compiling pest_generator v2.7.12
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[INFO] [stderr]    Compiling phf_generator v0.10.0
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[INFO] [stderr]    Compiling pest_derive v2.7.12
[INFO] [stderr]    Compiling demo v0.0.0 (/opt/rustwide/workdir/demo)
[INFO] [stderr] error: failed to run custom build command for `demo v0.0.0 (/opt/rustwide/workdir/demo)`
[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/demo-7a00f8e79236fb45/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo::rerun-if-changed=./proto/helloworld.proto
[INFO] [stderr]   cargo::rerun-if-changed=./proto/type_test.proto
[INFO] [stderr]   cargo::rerun-if-changed=./proto/type_test_child_package.proto
[INFO] [stderr]   cargo::rerun-if-changed=./proto/type_test_same_namespace.proto
[INFO] [stderr]   cargo::rerun-if-changed=./proto
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Custom { kind: Other, error: "protoc failed: ./docs/build/proto_file_descriptor_set.pb: Read-only file system\n" }
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d0faad02aa89138bc06d57cf60ff0c3faaaaa94927fb8f30b6481ab60a654d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0faad02aa89138bc06d57cf60ff0c3faaaaa94927fb8f30b6481ab60a654d96", kill_on_drop: false }`
[INFO] [stdout] d0faad02aa89138bc06d57cf60ff0c3faaaaa94927fb8f30b6481ab60a654d96
