[INFO] cloning repository https://github.com/C-L-B-11/Cb_G21_B4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/C-L-B-11/Cb_G21_B4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC-L-B-11%2FCb_G21_B4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC-L-B-11%2FCb_G21_B4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f6e26ff14b0d514c21812ce12111b12a4af119e
[INFO] checking C-L-B-11/Cb_G21_B4 against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC-L-B-11%2FCb_G21_B4" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/C-L-B-11/Cb_G21_B4
[INFO] finished tweaking git repo https://github.com/C-L-B-11/Cb_G21_B4
[INFO] tweaked toml for git repo https://github.com/C-L-B-11/Cb_G21_B4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/C-L-B-11/Cb_G21_B4 on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/C-L-B-11/Cb_G21_B4 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-bison-skeleton v0.41.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b934e55956f623c389827237cac9ef2201e5800262b0fb497c9540bc1b590a00
[INFO] running `Command { std: "docker" "start" "-a" "b934e55956f623c389827237cac9ef2201e5800262b0fb497c9540bc1b590a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b934e55956f623c389827237cac9ef2201e5800262b0fb497c9540bc1b590a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b934e55956f623c389827237cac9ef2201e5800262b0fb497c9540bc1b590a00", kill_on_drop: false }`
[INFO] [stdout] b934e55956f623c389827237cac9ef2201e5800262b0fb497c9540bc1b590a00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0025b075aae940e835326475f4dabf1888da83e82b2de4f1e69c8a4e8834841c
[INFO] running `Command { std: "docker" "start" "-a" "0025b075aae940e835326475f4dabf1888da83e82b2de4f1e69c8a4e8834841c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling rust-bison-skeleton v0.41.0
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling cb-4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `cb-4 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/cb-4-ec12849e4480616f/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   CARGO_MANIFEST_DIR = "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-bison-skeleton-0.41.0"
[INFO] [stderr]   file = "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-bison-skeleton-0.41.0/src/lib.rs"
[INFO] [stderr]   current dir = Ok("/opt/rustwide/workdir")
[INFO] [stderr]   Bison error:
[INFO] [stderr]   bison: src/parser/minako_syntax.rs: cannot open: Read-only file system
[INFO] [stderr] 
[INFO] [stderr]   exiting with 1
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0025b075aae940e835326475f4dabf1888da83e82b2de4f1e69c8a4e8834841c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0025b075aae940e835326475f4dabf1888da83e82b2de4f1e69c8a4e8834841c", kill_on_drop: false }`
[INFO] [stdout] 0025b075aae940e835326475f4dabf1888da83e82b2de4f1e69c8a4e8834841c
