[INFO] fetching crate bolero-engine 0.6.0...
[INFO] testing bolero-engine-0.6.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate bolero-engine 0.6.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate bolero-engine 0.6.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bolero-engine 0.6.0
[INFO] finished tweaking crates.io crate bolero-engine 0.6.0
[INFO] tweaked toml for crates.io crate bolero-engine 0.6.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30aca252e987cc750f4b3343d3ffa86cfca485f541e8165555b33f0cfe7ba6e3
[INFO] running `Command { std: "docker" "start" "-a" "30aca252e987cc750f4b3343d3ffa86cfca485f541e8165555b33f0cfe7ba6e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30aca252e987cc750f4b3343d3ffa86cfca485f541e8165555b33f0cfe7ba6e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30aca252e987cc750f4b3343d3ffa86cfca485f541e8165555b33f0cfe7ba6e3", kill_on_drop: false }`
[INFO] [stdout] 30aca252e987cc750f4b3343d3ffa86cfca485f541e8165555b33f0cfe7ba6e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae7ea363a1e3f1f3bb46894aa6ecd0d563bd06090359cdfbd3a33745b8043f9c
[INFO] running `Command { std: "docker" "start" "-a" "ae7ea363a1e3f1f3bb46894aa6ecd0d563bd06090359cdfbd3a33745b8043f9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling pretty-hex v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling backtrace v0.3.61
[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 addr2line v0.16.0
[INFO] [stderr]    Compiling bolero-generator-derive v0.6.1
[INFO] [stderr]    Compiling bolero-generator v0.6.0
[INFO] [stderr]    Compiling bolero-engine v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.23s
[INFO] running `Command { std: "docker" "inspect" "ae7ea363a1e3f1f3bb46894aa6ecd0d563bd06090359cdfbd3a33745b8043f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae7ea363a1e3f1f3bb46894aa6ecd0d563bd06090359cdfbd3a33745b8043f9c", kill_on_drop: false }`
[INFO] [stdout] ae7ea363a1e3f1f3bb46894aa6ecd0d563bd06090359cdfbd3a33745b8043f9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 795e596a7c64ea786bb6cc9b0e40ef1a90c5222f3bb34149d0afb9c4639cfdc8
[INFO] running `Command { std: "docker" "start" "-a" "795e596a7c64ea786bb6cc9b0e40ef1a90c5222f3bb34149d0afb9c4639cfdc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling bolero-engine v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "795e596a7c64ea786bb6cc9b0e40ef1a90c5222f3bb34149d0afb9c4639cfdc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "795e596a7c64ea786bb6cc9b0e40ef1a90c5222f3bb34149d0afb9c4639cfdc8", kill_on_drop: false }`
[INFO] [stdout] 795e596a7c64ea786bb6cc9b0e40ef1a90c5222f3bb34149d0afb9c4639cfdc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7c133728e636da160ca1059b143b5bb1dac3aa79a0ef633e9d259a9ba8aee430
[INFO] running `Command { std: "docker" "start" "-a" "7c133728e636da160ca1059b143b5bb1dac3aa79a0ef633e9d259a9ba8aee430", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bolero_engine-90d47ad2ea6be044)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test target_location::format_symbol_name_test ... ok
[INFO] [stdout] test target_location::item_path_test ... ok
[INFO] [stdout] test shrink::u16_shrink_test ... ok
[INFO] [stdout] test shrink::u32_shrink_test ... ok
[INFO] [stdout] test shrink::vec_shrink_test ... ok
[INFO] [stdout] test shrink::non_start_vec_shrink_test ... ok
[INFO] [stdout] test shrink::middle_vec_shrink_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bolero-engine
[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" "7c133728e636da160ca1059b143b5bb1dac3aa79a0ef633e9d259a9ba8aee430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c133728e636da160ca1059b143b5bb1dac3aa79a0ef633e9d259a9ba8aee430", kill_on_drop: false }`
[INFO] [stdout] 7c133728e636da160ca1059b143b5bb1dac3aa79a0ef633e9d259a9ba8aee430