[INFO] fetching crate mines 0.2.1...
[INFO] testing mines-0.2.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate mines 0.2.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate mines 0.2.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 752476cb1a9d6206df33252f682651e59d727ec423e171a01e0c855578ead32e
[INFO] running `Command { std: "docker" "start" "-a" "752476cb1a9d6206df33252f682651e59d727ec423e171a01e0c855578ead32e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "752476cb1a9d6206df33252f682651e59d727ec423e171a01e0c855578ead32e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752476cb1a9d6206df33252f682651e59d727ec423e171a01e0c855578ead32e", kill_on_drop: false }`
[INFO] [stdout] 752476cb1a9d6206df33252f682651e59d727ec423e171a01e0c855578ead32e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2169277db79f562d2944c14b348fd3ce8e7e2092aefc17a034558c386a13db37
[INFO] running `Command { std: "docker" "start" "-a" "2169277db79f562d2944c14b348fd3ce8e7e2092aefc17a034558c386a13db37", kill_on_drop: false }`
[INFO] [stderr]    Compiling mines v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the type `&Void` does not permit zero-initialization
[INFO] [stdout]   --> src/lib.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let v: &Void = mem::transmute(0usize);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    this code causes undefined behavior when executed
[INFO] [stdout]    |                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "2169277db79f562d2944c14b348fd3ce8e7e2092aefc17a034558c386a13db37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2169277db79f562d2944c14b348fd3ce8e7e2092aefc17a034558c386a13db37", kill_on_drop: false }`
[INFO] [stdout] 2169277db79f562d2944c14b348fd3ce8e7e2092aefc17a034558c386a13db37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37aee7566521620e657b49a9b763a32c82da81247bc10f8441748175d899c98f
[INFO] running `Command { std: "docker" "start" "-a" "37aee7566521620e657b49a9b763a32c82da81247bc10f8441748175d899c98f", kill_on_drop: false }`
[INFO] [stdout] warning: the type `&Void` does not permit zero-initialization
[INFO] [stdout]   --> src/lib.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let v: &Void = mem::transmute(0usize);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    this code causes undefined behavior when executed
[INFO] [stdout]    |                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mines v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&Void` does not permit zero-initialization
[INFO] [stdout]   --> src/lib.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let v: &Void = mem::transmute(0usize);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    this code causes undefined behavior when executed
[INFO] [stdout]    |                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]    = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "37aee7566521620e657b49a9b763a32c82da81247bc10f8441748175d899c98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37aee7566521620e657b49a9b763a32c82da81247bc10f8441748175d899c98f", kill_on_drop: false }`
[INFO] [stdout] 37aee7566521620e657b49a9b763a32c82da81247bc10f8441748175d899c98f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57274339c62726babec33815e090fe3faaa7cf490dda48e25b471a5a8b867d71
[INFO] running `Command { std: "docker" "start" "-a" "57274339c62726babec33815e090fe3faaa7cf490dda48e25b471a5a8b867d71", kill_on_drop: false }`
[INFO] [stderr] warning: the type `&Void` does not permit zero-initialization
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:15:20
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 15 |     let v: &Void = mem::transmute(0usize);
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[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: `mines` (lib) generated 1 warning
[INFO] [stderr] warning: `mines` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mines-7e5044413eb8a845)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "57274339c62726babec33815e090fe3faaa7cf490dda48e25b471a5a8b867d71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57274339c62726babec33815e090fe3faaa7cf490dda48e25b471a5a8b867d71", kill_on_drop: false }`
[INFO] [stdout] 57274339c62726babec33815e090fe3faaa7cf490dda48e25b471a5a8b867d71