[INFO] fetching crate mines 0.2.1...
[INFO] checking mines-0.2.1 against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[INFO] extracting crate mines 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mines 0.2.1 on toolchain 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mines 0.2.1
[INFO] finished tweaking crates.io crate mines 0.2.1
[INFO] tweaked toml for crates.io crate mines 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6994e2e4c593f1ecedc30835d4277dfbe15b9d0d0319483f648e64b6ca11851
[INFO] running `"docker" "start" "-a" "d6994e2e4c593f1ecedc30835d4277dfbe15b9d0d0319483f648e64b6ca11851"`
[INFO] [stderr]     Checking mines v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the type `&Void` does not permit zero-initialization
[INFO] [stderr]   --> src/lib.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let v: &Void = mem::transmute(0usize);
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    this code causes undefined behavior when executed
[INFO] [stderr]    |                    help: use `MaybeUninit<T>` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: References must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: the type `&Void` does not permit zero-initialization
[INFO] [stderr]   --> src/lib.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let v: &Void = mem::transmute(0usize);
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    this code causes undefined behavior when executed
[INFO] [stderr]    |                    help: use `MaybeUninit<T>` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: References must be non-null
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "d6994e2e4c593f1ecedc30835d4277dfbe15b9d0d0319483f648e64b6ca11851"`
[INFO] running `"docker" "rm" "-f" "d6994e2e4c593f1ecedc30835d4277dfbe15b9d0d0319483f648e64b6ca11851"`
[INFO] [stdout] d6994e2e4c593f1ecedc30835d4277dfbe15b9d0d0319483f648e64b6ca11851