[INFO] fetching crate mocktopus 0.8.0... [INFO] checking mocktopus-0.8.0 against try#306c6aded24f02440063be828ebe601fe5eb8323 for pr-133502-3 [INFO] extracting crate mocktopus 0.8.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate mocktopus 0.8.0 on toolchain 306c6aded24f02440063be828ebe601fe5eb8323 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-0-tc2/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-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 38 packages to latest compatible versions [INFO] [stderr] Adding tokio v0.2.25 (available: v1.44.2) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3847d42170194176ec7144f7fecceed7c79c35e6f2e428940960bbcefbaea749 [INFO] running `Command { std: "docker" "start" "-a" "3847d42170194176ec7144f7fecceed7c79c35e6f2e428940960bbcefbaea749", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3847d42170194176ec7144f7fecceed7c79c35e6f2e428940960bbcefbaea749", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3847d42170194176ec7144f7fecceed7c79c35e6f2e428940960bbcefbaea749", kill_on_drop: false }` [INFO] [stdout] 3847d42170194176ec7144f7fecceed7c79c35e6f2e428940960bbcefbaea749 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+306c6aded24f02440063be828ebe601fe5eb8323" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] af3bf0685a3e2240175f180a6f4f95a8148a619b1dcb4d2097b1e57316b339bc [INFO] running `Command { std: "docker" "start" "-a" "af3bf0685a3e2240175f180a6f4f95a8148a619b1dcb4d2097b1e57316b339bc", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Compiling mocktopus_macros v0.7.11 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking mio v0.6.23 [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] [stderr] error: could not compile `mocktopus` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "af3bf0685a3e2240175f180a6f4f95a8148a619b1dcb4d2097b1e57316b339bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af3bf0685a3e2240175f180a6f4f95a8148a619b1dcb4d2097b1e57316b339bc", kill_on_drop: false }` [INFO] [stdout] af3bf0685a3e2240175f180a6f4f95a8148a619b1dcb4d2097b1e57316b339bc