[INFO] fetching crate natural_slice 0.1.2...
[INFO] testing natural_slice-0.1.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate natural_slice 0.1.2 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate natural_slice 0.1.2 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 natural_slice 0.1.2
[INFO] finished tweaking crates.io crate natural_slice 0.1.2
[INFO] tweaked toml for crates.io crate natural_slice 0.1.2 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 0d240dc44c12b98c28ee12e265e36f7c48f052bdd7a46c7bb875dad4b5060602
[INFO] running `Command { std: "docker" "start" "-a" "0d240dc44c12b98c28ee12e265e36f7c48f052bdd7a46c7bb875dad4b5060602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d240dc44c12b98c28ee12e265e36f7c48f052bdd7a46c7bb875dad4b5060602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d240dc44c12b98c28ee12e265e36f7c48f052bdd7a46c7bb875dad4b5060602", kill_on_drop: false }`
[INFO] [stdout] 0d240dc44c12b98c28ee12e265e36f7c48f052bdd7a46c7bb875dad4b5060602
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] ed70326454fa424f7c39bfcde4d37e93a7c0250b2728822fd3e1365004f4cc30
[INFO] running `Command { std: "docker" "start" "-a" "ed70326454fa424f7c39bfcde4d37e93a7c0250b2728822fd3e1365004f4cc30", kill_on_drop: false }`
[INFO] [stderr]    Compiling radix_fmt v1.0.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling factorial v0.2.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling natural_slice v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "ed70326454fa424f7c39bfcde4d37e93a7c0250b2728822fd3e1365004f4cc30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed70326454fa424f7c39bfcde4d37e93a7c0250b2728822fd3e1365004f4cc30", kill_on_drop: false }`
[INFO] [stdout] ed70326454fa424f7c39bfcde4d37e93a7c0250b2728822fd3e1365004f4cc30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 89815ed435e91725d89eaa5baae9d130cc58af92b3ae9305b30ca6132f15b781
[INFO] running `Command { std: "docker" "start" "-a" "89815ed435e91725d89eaa5baae9d130cc58af92b3ae9305b30ca6132f15b781", kill_on_drop: false }`
[INFO] [stderr]    Compiling natural_slice v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "89815ed435e91725d89eaa5baae9d130cc58af92b3ae9305b30ca6132f15b781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89815ed435e91725d89eaa5baae9d130cc58af92b3ae9305b30ca6132f15b781", kill_on_drop: false }`
[INFO] [stdout] 89815ed435e91725d89eaa5baae9d130cc58af92b3ae9305b30ca6132f15b781
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 51fadae2a41f4d5e6f5fce6a5d342da541cc69dff730ae0a88b035ecfcfc117f
[INFO] running `Command { std: "docker" "start" "-a" "51fadae2a41f4d5e6f5fce6a5d342da541cc69dff730ae0a88b035ecfcfc117f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/natural_slice-a56bb1e37229d16e)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test permutation::tests::test_encode_permutation ... ok
[INFO] [stdout] test permutation::tests::test_encode_permutation_fails_with_too_small_type ... ok
[INFO] [stdout] test property::tests::test_decode_property ... ok
[INFO] [stdout] test property::tests::test_encode_property_fails_with_too_small_type ... ok
[INFO] [stdout] test position::tests::test_encode_position ... ok
[INFO] [stdout] test position::tests::test_decode_position ... ok
[INFO] [stdout] test position::tests::test_encode_position_fails_with_too_small_type ... ok
[INFO] [stdout] test property::tests::test_encode_property ... ok
[INFO] [stdout] test permutation::tests::test_decode_permutation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests natural_slice
[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" "51fadae2a41f4d5e6f5fce6a5d342da541cc69dff730ae0a88b035ecfcfc117f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51fadae2a41f4d5e6f5fce6a5d342da541cc69dff730ae0a88b035ecfcfc117f", kill_on_drop: false }`
[INFO] [stdout] 51fadae2a41f4d5e6f5fce6a5d342da541cc69dff730ae0a88b035ecfcfc117f