[INFO] fetching crate unsafe_example 0.2.0...
[INFO] testing unsafe_example-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate unsafe_example 0.2.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate unsafe_example 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unsafe_example 0.2.0
[INFO] finished tweaking crates.io crate unsafe_example 0.2.0
[INFO] tweaked toml for crates.io crate unsafe_example 0.2.0 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate crates.io crate unsafe_example 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65b86f043d00297b24dd01f63a34c6b0ecb3be5e76c6d8a31f9388b01ebd08cf
[INFO] running `Command { std: "docker" "start" "-a" "65b86f043d00297b24dd01f63a34c6b0ecb3be5e76c6d8a31f9388b01ebd08cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65b86f043d00297b24dd01f63a34c6b0ecb3be5e76c6d8a31f9388b01ebd08cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b86f043d00297b24dd01f63a34c6b0ecb3be5e76c6d8a31f9388b01ebd08cf", kill_on_drop: false }`
[INFO] [stdout] 65b86f043d00297b24dd01f63a34c6b0ecb3be5e76c6d8a31f9388b01ebd08cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e8888c1d4d71786d619d1abdde3c3acbbafcf9ac45b60fbc1fb435c63834ecf
[INFO] running `Command { std: "docker" "start" "-a" "9e8888c1d4d71786d619d1abdde3c3acbbafcf9ac45b60fbc1fb435c63834ecf", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe_example v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub unsafe fn index_3(idx: usize, arr: &[u8]) -> Option<u8>
[INFO] [stdout]    | ----------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] ...
[INFO] [stdout] 27 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "9e8888c1d4d71786d619d1abdde3c3acbbafcf9ac45b60fbc1fb435c63834ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e8888c1d4d71786d619d1abdde3c3acbbafcf9ac45b60fbc1fb435c63834ecf", kill_on_drop: false }`
[INFO] [stdout] 9e8888c1d4d71786d619d1abdde3c3acbbafcf9ac45b60fbc1fb435c63834ecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47ea0a7248362f4672ec2fb16800775ea2ede7f6cd6a4e82020ca2b50ba74d99
[INFO] running `Command { std: "docker" "start" "-a" "47ea0a7248362f4672ec2fb16800775ea2ede7f6cd6a4e82020ca2b50ba74d99", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub unsafe fn index_3(idx: usize, arr: &[u8]) -> Option<u8>
[INFO] [stdout]    | ----------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] ...
[INFO] [stdout] 27 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unsafe_example v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub unsafe fn index_3(idx: usize, arr: &[u8]) -> Option<u8>
[INFO] [stdout]    | ----------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] ...
[INFO] [stdout] 27 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "47ea0a7248362f4672ec2fb16800775ea2ede7f6cd6a4e82020ca2b50ba74d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ea0a7248362f4672ec2fb16800775ea2ede7f6cd6a4e82020ca2b50ba74d99", kill_on_drop: false }`
[INFO] [stdout] 47ea0a7248362f4672ec2fb16800775ea2ede7f6cd6a4e82020ca2b50ba74d99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 880d07d05e8f7845c92e69924150f36c8d16f56b2f94c9666d87852cba46bf27
[INFO] running `Command { std: "docker" "start" "-a" "880d07d05e8f7845c92e69924150f36c8d16f56b2f94c9666d87852cba46bf27", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/lib.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub unsafe fn index_3(idx: usize, arr: &[u8]) -> Option<u8>
[INFO] [stderr]    | ----------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stderr] ...
[INFO] [stderr] 27 |         unsafe {
[INFO] [stderr]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `unsafe_example` (lib) generated 1 warning
[INFO] [stderr] warning: `unsafe_example` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unsafe_example-5e76d7c9c3feefd7)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unsafe_example-e88e6aba31357535)
[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] [stderr]    Doc-tests unsafe_example
[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" "880d07d05e8f7845c92e69924150f36c8d16f56b2f94c9666d87852cba46bf27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "880d07d05e8f7845c92e69924150f36c8d16f56b2f94c9666d87852cba46bf27", kill_on_drop: false }`
[INFO] [stdout] 880d07d05e8f7845c92e69924150f36c8d16f56b2f94c9666d87852cba46bf27