[INFO] fetching crate safety_breaker 0.1.0...
[INFO] building safety_breaker-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate safety_breaker 0.1.0 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate safety_breaker 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 38931808661cbff0236fa67e080b0361a5770e03a8052dd6065df1b1d059c44e
[INFO] running `Command { std: "docker" "start" "-a" "38931808661cbff0236fa67e080b0361a5770e03a8052dd6065df1b1d059c44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38931808661cbff0236fa67e080b0361a5770e03a8052dd6065df1b1d059c44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38931808661cbff0236fa67e080b0361a5770e03a8052dd6065df1b1d059c44e", kill_on_drop: false }`
[INFO] [stdout] 38931808661cbff0236fa67e080b0361a5770e03a8052dd6065df1b1d059c44e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f787f7730a4d63f37e9e05b2870b325e81f5488e5ac5952c1197b44799d07ed5
[INFO] running `Command { std: "docker" "start" "-a" "f787f7730a4d63f37e9e05b2870b325e81f5488e5ac5952c1197b44799d07ed5", 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" "f787f7730a4d63f37e9e05b2870b325e81f5488e5ac5952c1197b44799d07ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f787f7730a4d63f37e9e05b2870b325e81f5488e5ac5952c1197b44799d07ed5", kill_on_drop: false }`
[INFO] [stdout] f787f7730a4d63f37e9e05b2870b325e81f5488e5ac5952c1197b44799d07ed5