[INFO] fetching crate mocktopus 0.8.0... [INFO] checking mocktopus-0.8.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1 [INFO] extracting crate mocktopus 0.8.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate mocktopus 0.8.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain [INFO] started tweaking crates.io crate mocktopus 0.8.0 [INFO] finished tweaking crates.io crate mocktopus 0.8.0 [INFO] tweaked toml for crates.io crate mocktopus 0.8.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded mio v0.6.23 [INFO] [stderr] Downloaded mocktopus_macros v0.7.11 [INFO] [stderr] Downloaded mio-named-pipes v0.1.7 [INFO] [stderr] Downloaded miow v0.2.2 [INFO] [stderr] Downloaded net2 v0.2.39 [INFO] [stderr] Downloaded mio-uds v0.6.8 [INFO] [stderr] Downloaded tokio-macros v0.2.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b1e82e99e13b4df76f671033491c743ef8d6937d97199c4010770115a5c17f91 [INFO] running `Command { std: "docker" "start" "-a" "b1e82e99e13b4df76f671033491c743ef8d6937d97199c4010770115a5c17f91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b1e82e99e13b4df76f671033491c743ef8d6937d97199c4010770115a5c17f91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b1e82e99e13b4df76f671033491c743ef8d6937d97199c4010770115a5c17f91", kill_on_drop: false }` [INFO] [stdout] b1e82e99e13b4df76f671033491c743ef8d6937d97199c4010770115a5c17f91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d60945edb2e5e0a74a53e434556ba7da34698032842b90d7242e292417f2f5ab [INFO] running `Command { std: "docker" "start" "-a" "d60945edb2e5e0a74a53e434556ba7da34698032842b90d7242e292417f2f5ab", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Compiling mocktopus_macros v0.7.11 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Checking mocktopus v0.8.0 (/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/mocking_utils.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | &mut *(t_ref as *const T as *mut T) [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] [stderr] error: could not compile `mocktopus` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d60945edb2e5e0a74a53e434556ba7da34698032842b90d7242e292417f2f5ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d60945edb2e5e0a74a53e434556ba7da34698032842b90d7242e292417f2f5ab", kill_on_drop: false }` [INFO] [stdout] d60945edb2e5e0a74a53e434556ba7da34698032842b90d7242e292417f2f5ab