[INFO] cloning repository https://github.com/beta-ziliani/rust-macro-lang-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beta-ziliani/rust-macro-lang-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeta-ziliani%2Frust-macro-lang-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeta-ziliani%2Frust-macro-lang-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa0e8ac628e98532014cc47b27b9fa024cbc95f4
[INFO] checking beta-ziliani/rust-macro-lang-generator against try#c86ec274072509d26d0ee52682a0c94ed012ed89 for pr-153027
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeta-ziliani%2Frust-macro-lang-generator" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/beta-ziliani/rust-macro-lang-generator
[INFO] finished tweaking git repo https://github.com/beta-ziliani/rust-macro-lang-generator
[INFO] tweaked toml for git repo https://github.com/beta-ziliani/rust-macro-lang-generator written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/beta-ziliani/rust-macro-lang-generator on toolchain c86ec274072509d26d0ee52682a0c94ed012ed89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/beta-ziliani/rust-macro-lang-generator 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" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 401d98dff8a19186cf6149032fcf333874ba932c1ec637b57ae4bb31f575a385
[INFO] running `Command { std: "docker" "start" "-a" "401d98dff8a19186cf6149032fcf333874ba932c1ec637b57ae4bb31f575a385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "401d98dff8a19186cf6149032fcf333874ba932c1ec637b57ae4bb31f575a385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "401d98dff8a19186cf6149032fcf333874ba932c1ec637b57ae4bb31f575a385", kill_on_drop: false }`
[INFO] [stdout] 401d98dff8a19186cf6149032fcf333874ba932c1ec637b57ae4bb31f575a385
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c86ec274072509d26d0ee52682a0c94ed012ed89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91ffa6b79080d03529b972f54ef56a7abfc22bf6577f9c1693ab2df46ab06848
[INFO] running `Command { std: "docker" "start" "-a" "91ffa6b79080d03529b972f54ef56a7abfc22bf6577f9c1693ab2df46ab06848", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling rust-ldw v0.1.0 (/opt/rustwide/workdir/crates/example)
[INFO] [stderr] error: failed to run custom build command for `rust-ldw v0.1.0 (/opt/rustwide/workdir/crates/example)`
[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/rust-ldw-50d2a0ef870a4b5b/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo::rustc-env=RUST_BACKTRACE=1
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] running `Command { std: "docker" "inspect" "91ffa6b79080d03529b972f54ef56a7abfc22bf6577f9c1693ab2df46ab06848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ffa6b79080d03529b972f54ef56a7abfc22bf6577f9c1693ab2df46ab06848", kill_on_drop: false }`
[INFO] [stdout] 91ffa6b79080d03529b972f54ef56a7abfc22bf6577f9c1693ab2df46ab06848