[INFO] fetching crate natural_slice 0.1.2...
[INFO] testing natural_slice-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate natural_slice 0.1.2 into /workspace/builds/worker-6-tc1/source
[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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate natural_slice 0.1.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding factorial v0.2.1 (available: v0.4.0)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded factorial v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 413fd79fbcda30ef915505aa99f8a5b2b17ce59ac2bf559c8e2f76d71c88b1b9
[INFO] running `Command { std: "docker" "start" "-a" "413fd79fbcda30ef915505aa99f8a5b2b17ce59ac2bf559c8e2f76d71c88b1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "413fd79fbcda30ef915505aa99f8a5b2b17ce59ac2bf559c8e2f76d71c88b1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413fd79fbcda30ef915505aa99f8a5b2b17ce59ac2bf559c8e2f76d71c88b1b9", kill_on_drop: false }`
[INFO] [stdout] 413fd79fbcda30ef915505aa99f8a5b2b17ce59ac2bf559c8e2f76d71c88b1b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68c3bfdc4132f152039845d7cb4f2c0aa7230cca6e8cdbc8283b59b3b71a23c6
[INFO] running `Command { std: "docker" "start" "-a" "68c3bfdc4132f152039845d7cb4f2c0aa7230cca6e8cdbc8283b59b3b71a23c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling radix_fmt v1.0.0
[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` profile [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "68c3bfdc4132f152039845d7cb4f2c0aa7230cca6e8cdbc8283b59b3b71a23c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c3bfdc4132f152039845d7cb4f2c0aa7230cca6e8cdbc8283b59b3b71a23c6", kill_on_drop: false }`
[INFO] [stdout] 68c3bfdc4132f152039845d7cb4f2c0aa7230cca6e8cdbc8283b59b3b71a23c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbd6e636f7a252ee25e0b114f0e575f65c39d9259045d1799e2c32cd908b626b
[INFO] running `Command { std: "docker" "start" "-a" "bbd6e636f7a252ee25e0b114f0e575f65c39d9259045d1799e2c32cd908b626b", kill_on_drop: false }`
[INFO] [stderr]    Compiling natural_slice v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "bbd6e636f7a252ee25e0b114f0e575f65c39d9259045d1799e2c32cd908b626b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbd6e636f7a252ee25e0b114f0e575f65c39d9259045d1799e2c32cd908b626b", kill_on_drop: false }`
[INFO] [stdout] bbd6e636f7a252ee25e0b114f0e575f65c39d9259045d1799e2c32cd908b626b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 93ed2bad99f735b33c3f70a731264d9b5ec13c11b9f0b3727d45fcf17aefb1a7
[INFO] running `Command { std: "docker" "start" "-a" "93ed2bad99f735b33c3f70a731264d9b5ec13c11b9f0b3727d45fcf17aefb1a7", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/natural_slice-681f445a49180582)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test permutation::tests::test_decode_permutation ... ok
[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 position::tests::test_decode_position ... ok
[INFO] [stdout] test position::tests::test_encode_position ... 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 property::tests::test_encode_property ... ok
[INFO] [stdout] test position::tests::test_encode_position_fails_with_too_small_type ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "93ed2bad99f735b33c3f70a731264d9b5ec13c11b9f0b3727d45fcf17aefb1a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ed2bad99f735b33c3f70a731264d9b5ec13c11b9f0b3727d45fcf17aefb1a7", kill_on_drop: false }`
[INFO] [stdout] 93ed2bad99f735b33c3f70a731264d9b5ec13c11b9f0b3727d45fcf17aefb1a7