[INFO] cloning repository https://github.com/lwagner94/mycpu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lwagner94/mycpu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flwagner94%2Fmycpu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flwagner94%2Fmycpu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69f933ee71611f884893dae61258d912c2feba86
[INFO] building lwagner94/mycpu against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flwagner94%2Fmycpu" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lwagner94/mycpu
[INFO] finished tweaking git repo https://github.com/lwagner94/mycpu
[INFO] tweaked toml for git repo https://github.com/lwagner94/mycpu written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lwagner94/mycpu on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lwagner94/mycpu 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5c967346be431a1b2b248c1f2a9c02be8e89f65a3943c0e5308e8d2430ee0f9
[INFO] running `Command { std: "docker" "start" "-a" "e5c967346be431a1b2b248c1f2a9c02be8e89f65a3943c0e5308e8d2430ee0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5c967346be431a1b2b248c1f2a9c02be8e89f65a3943c0e5308e8d2430ee0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5c967346be431a1b2b248c1f2a9c02be8e89f65a3943c0e5308e8d2430ee0f9", kill_on_drop: false }`
[INFO] [stdout] e5c967346be431a1b2b248c1f2a9c02be8e89f65a3943c0e5308e8d2430ee0f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84a6a1ad0b2af7f1e48631abd90f56cc30f3b2f509fbfbb80a292c5834d14a87
[INFO] running `Command { std: "docker" "start" "-a" "84a6a1ad0b2af7f1e48631abd90f56cc30f3b2f509fbfbb80a292c5834d14a87", kill_on_drop: false }`
[INFO] [stderr]    Compiling mycpu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `mycpu 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/mycpu-18d4a09a32449db4/build-script-build` (exit status: 2)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Traceback (most recent call last):
[INFO] [stderr]     File "/opt/rustwide/workdir/generate_instructions.py", line 45, in <module>
[INFO] [stderr]       with open("src/common/generated/instruction.rs", "w") as f:
[INFO] [stderr]            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   OSError: [Errno 30] Read-only file system: 'src/common/generated/instruction.rs'
[INFO] [stderr]   Traceback (most recent call last):
[INFO] [stderr]     File "/opt/rustwide/workdir/generate_parser.py", line 41, in <module>
[INFO] [stderr]       with open("src/assembler/generated/matcher.rs", "w") as f:
[INFO] [stderr]            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   OSError: [Errno 30] Read-only file system: 'src/assembler/generated/matcher.rs'
[INFO] running `Command { std: "docker" "inspect" "84a6a1ad0b2af7f1e48631abd90f56cc30f3b2f509fbfbb80a292c5834d14a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84a6a1ad0b2af7f1e48631abd90f56cc30f3b2f509fbfbb80a292c5834d14a87", kill_on_drop: false }`
[INFO] [stdout] 84a6a1ad0b2af7f1e48631abd90f56cc30f3b2f509fbfbb80a292c5834d14a87