[INFO] fetching crate safety_breaker 0.1.0... [INFO] checking safety_breaker-0.1.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] extracting crate safety_breaker 0.1.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate safety_breaker 0.1.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2a5caaaea63a63197187ea4c3261cafd040e8eeaf85d91ac8ed13910c510c492 [INFO] running `Command { std: "docker" "start" "-a" "2a5caaaea63a63197187ea4c3261cafd040e8eeaf85d91ac8ed13910c510c492", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2a5caaaea63a63197187ea4c3261cafd040e8eeaf85d91ac8ed13910c510c492", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a5caaaea63a63197187ea4c3261cafd040e8eeaf85d91ac8ed13910c510c492", kill_on_drop: false }` [INFO] [stdout] 2a5caaaea63a63197187ea4c3261cafd040e8eeaf85d91ac8ed13910c510c492 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2c8469e1831385218b127adb4aaefb652a5e96011b287595b7593fc647c98c2d [INFO] running `Command { std: "docker" "start" "-a" "2c8469e1831385218b127adb4aaefb652a5e96011b287595b7593fc647c98c2d", kill_on_drop: false }` [INFO] [stderr] Checking 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 [INFO] [stdout] = note: `#[deny(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [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 [INFO] [stdout] = note: `#[deny(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `safety_breaker` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `safety_breaker` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "2c8469e1831385218b127adb4aaefb652a5e96011b287595b7593fc647c98c2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c8469e1831385218b127adb4aaefb652a5e96011b287595b7593fc647c98c2d", kill_on_drop: false }` [INFO] [stdout] 2c8469e1831385218b127adb4aaefb652a5e96011b287595b7593fc647c98c2d