[INFO] fetching crate safety_breaker 0.1.0...
[INFO] building safety_breaker-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate safety_breaker 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate safety_breaker 0.1.0
[INFO] finished tweaking crates.io crate safety_breaker 0.1.0
[INFO] tweaked toml for crates.io crate safety_breaker 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate safety_breaker 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3806cf38d76e23f1815ac25dffac5e79338f8ea0a21b63475c205a12bf7bdf01
[INFO] running `Command { std: "docker" "start" "-a" "3806cf38d76e23f1815ac25dffac5e79338f8ea0a21b63475c205a12bf7bdf01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3806cf38d76e23f1815ac25dffac5e79338f8ea0a21b63475c205a12bf7bdf01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3806cf38d76e23f1815ac25dffac5e79338f8ea0a21b63475c205a12bf7bdf01", kill_on_drop: false }`
[INFO] [stdout] 3806cf38d76e23f1815ac25dffac5e79338f8ea0a21b63475c205a12bf7bdf01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb7e0cc67ec1686e6b1984ad65f25e8a1bc35a6b1f3dd8bf9e2c55e17276a5cf
[INFO] running `Command { std: "docker" "start" "-a" "eb7e0cc67ec1686e6b1984ad65f25e8a1bc35a6b1f3dd8bf9e2c55e17276a5cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling safety_breaker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &mut *(self as *const _ as *mut Self)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]    = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `safety_breaker` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "eb7e0cc67ec1686e6b1984ad65f25e8a1bc35a6b1f3dd8bf9e2c55e17276a5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb7e0cc67ec1686e6b1984ad65f25e8a1bc35a6b1f3dd8bf9e2c55e17276a5cf", kill_on_drop: false }`
[INFO] [stdout] eb7e0cc67ec1686e6b1984ad65f25e8a1bc35a6b1f3dd8bf9e2c55e17276a5cf