[INFO] cloning repository https://github.com/olegnn/proc-macro-ICE
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/olegnn/proc-macro-ICE" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folegnn%2Fproc-macro-ICE", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folegnn%2Fproc-macro-ICE'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae28911a3829cd62af630e89c333bd6ac9c57cd1
[INFO] testing olegnn/proc-macro-ICE against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folegnn%2Fproc-macro-ICE" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/olegnn/proc-macro-ICE on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/olegnn/proc-macro-ICE
[INFO] finished tweaking git repo https://github.com/olegnn/proc-macro-ICE
[INFO] tweaked toml for git repo https://github.com/olegnn/proc-macro-ICE written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/olegnn/proc-macro-ICE already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a2c399205b64cf638f57951715e16ff176c89587607d6e6e52e139b9c48ec58
[INFO] running `Command { std: "docker" "start" "-a" "3a2c399205b64cf638f57951715e16ff176c89587607d6e6e52e139b9c48ec58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a2c399205b64cf638f57951715e16ff176c89587607d6e6e52e139b9c48ec58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a2c399205b64cf638f57951715e16ff176c89587607d6e6e52e139b9c48ec58", kill_on_drop: false }`
[INFO] [stdout] 3a2c399205b64cf638f57951715e16ff176c89587607d6e6e52e139b9c48ec58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dadadb3d7e49fb83b928e3caf039c523d13205281ef1f8777c812dd00b384f7
[INFO] running `Command { std: "docker" "start" "-a" "6dadadb3d7e49fb83b928e3caf039c523d13205281ef1f8777c812dd00b384f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling proc-macro-bug-impl v0.0.1 (/opt/rustwide/workdir/proc-macro-bug-impl)
[INFO] [stderr]    Compiling proc-macro-bug v0.0.1 (/opt/rustwide/workdir/proc-macro-bug)
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]  --> proc-macro-bug/src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[some_macro(0)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: use-after-free in `proc_macro` handle
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro-bug` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6dadadb3d7e49fb83b928e3caf039c523d13205281ef1f8777c812dd00b384f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dadadb3d7e49fb83b928e3caf039c523d13205281ef1f8777c812dd00b384f7", kill_on_drop: false }`
[INFO] [stdout] 6dadadb3d7e49fb83b928e3caf039c523d13205281ef1f8777c812dd00b384f7