[INFO] fetching crate mines 0.2.1...
[INFO] testing mines-0.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate mines 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mines 0.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fe8f7bc1a055b827e36d3d98552d66b5a25eef2a5bab5d6bb9c375e32944d24
[INFO] running `"docker" "start" "-a" "0fe8f7bc1a055b827e36d3d98552d66b5a25eef2a5bab5d6bb9c375e32944d24"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling 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, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: references must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "0fe8f7bc1a055b827e36d3d98552d66b5a25eef2a5bab5d6bb9c375e32944d24"`
[INFO] running `"docker" "rm" "-f" "0fe8f7bc1a055b827e36d3d98552d66b5a25eef2a5bab5d6bb9c375e32944d24"`
[INFO] [stdout] 0fe8f7bc1a055b827e36d3d98552d66b5a25eef2a5bab5d6bb9c375e32944d24
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b68d68a812b29bea30958ff9815f3e46ab971d2a9d75968e39a533d1f324e873
[INFO] running `"docker" "start" "-a" "b68d68a812b29bea30958ff9815f3e46ab971d2a9d75968e39a533d1f324e873"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling 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, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: references must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[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, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: references must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "b68d68a812b29bea30958ff9815f3e46ab971d2a9d75968e39a533d1f324e873"`
[INFO] running `"docker" "rm" "-f" "b68d68a812b29bea30958ff9815f3e46ab971d2a9d75968e39a533d1f324e873"`
[INFO] [stdout] b68d68a812b29bea30958ff9815f3e46ab971d2a9d75968e39a533d1f324e873
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1560e74364358406e61da680a0293b576b41f4f80ef78bc58b2d87e05aacebdc
[INFO] running `"docker" "start" "-a" "1560e74364358406e61da680a0293b576b41f4f80ef78bc58b2d87e05aacebdc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: references must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[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, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: references must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mines-b5b40145821732b4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mines
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1560e74364358406e61da680a0293b576b41f4f80ef78bc58b2d87e05aacebdc"`
[INFO] running `"docker" "rm" "-f" "1560e74364358406e61da680a0293b576b41f4f80ef78bc58b2d87e05aacebdc"`
[INFO] [stdout] 1560e74364358406e61da680a0293b576b41f4f80ef78bc58b2d87e05aacebdc