[INFO] fetching crate butterfly-fuzz 0.2.2...
[INFO] testing butterfly-fuzz-0.2.2 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate butterfly-fuzz 0.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate butterfly-fuzz 0.2.2 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate butterfly-fuzz 0.2.2
[INFO] finished tweaking crates.io crate butterfly-fuzz 0.2.2
[INFO] tweaked toml for crates.io crate butterfly-fuzz 0.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.11
[INFO] [stderr]   Downloaded typed-builder v0.10.0
[INFO] [stderr]   Downloaded cobs v0.2.3
[INFO] [stderr]   Downloaded intervaltree v0.2.7
[INFO] [stderr]   Downloaded const-random-macro v0.1.15
[INFO] [stderr]   Downloaded const-random v0.1.15
[INFO] [stderr]   Downloaded tuple_list v0.1.3
[INFO] [stderr]   Downloaded xxhash-rust v0.8.6
[INFO] [stderr]   Downloaded uds v0.2.6
[INFO] [stderr]   Downloaded tui v0.18.0
[INFO] [stderr]   Downloaded concat-idents v1.1.4
[INFO] [stderr]   Downloaded postcard v1.0.2
[INFO] [stderr]   Downloaded libafl_derive v0.8.2
[INFO] [stderr]   Downloaded widestring v0.2.2
[INFO] [stderr]   Downloaded libafl v0.8.2
[INFO] [stderr]   Downloaded pcap v0.9.2
[INFO] [stderr]   Downloaded crossterm v0.23.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2597d098960b18973c78155ae12698252093c2c5a3dc3b30792327f43d904ac7
[INFO] running `Command { std: "docker" "start" "-a" "2597d098960b18973c78155ae12698252093c2c5a3dc3b30792327f43d904ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2597d098960b18973c78155ae12698252093c2c5a3dc3b30792327f43d904ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2597d098960b18973c78155ae12698252093c2c5a3dc3b30792327f43d904ac7", kill_on_drop: false }`
[INFO] [stdout] 2597d098960b18973c78155ae12698252093c2c5a3dc3b30792327f43d904ac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffa9dab8589e56a911c8d6819b0f23cc93989abbc8ab214cb7a789c7c891e0b7
[INFO] running `Command { std: "docker" "start" "-a" "ffa9dab8589e56a911c8d6819b0f23cc93989abbc8ab214cb7a789c7c891e0b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling spin v0.9.4
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling erased-serde v0.3.24
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling gimli v0.27.0
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling object v0.30.2
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling cobs v0.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling const-random-macro v0.1.15
[INFO] [stderr]    Compiling crossterm v0.23.2
[INFO] [stderr]    Compiling libafl v0.8.2
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling tui v0.18.0
[INFO] [stderr]    Compiling crossterm v0.24.0
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling const-random v0.1.15
[INFO] [stderr]    Compiling uds v0.2.6
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling tuple_list v0.1.3
[INFO] [stderr]    Compiling xxhash-rust v0.8.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling pcap v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling num_enum_derive v0.5.7
[INFO] [stderr]    Compiling typed-builder v0.10.0
[INFO] [stderr]    Compiling concat-idents v1.1.4
[INFO] [stderr]    Compiling libafl_derive v0.8.2
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling num_enum v0.5.7
[INFO] [stderr]    Compiling intervaltree v0.2.7
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling uuid v1.2.2
[INFO] [stderr]    Compiling postcard v1.0.2
[INFO] [stderr]    Compiling butterfly-fuzz v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 53s
[INFO] running `Command { std: "docker" "inspect" "ffa9dab8589e56a911c8d6819b0f23cc93989abbc8ab214cb7a789c7c891e0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffa9dab8589e56a911c8d6819b0f23cc93989abbc8ab214cb7a789c7c891e0b7", kill_on_drop: false }`
[INFO] [stdout] ffa9dab8589e56a911c8d6819b0f23cc93989abbc8ab214cb7a789c7c891e0b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89ca965e06fc4d9f80f2f1ed037921ad382b51ecf8d3d56cb297e90829b669dc
[INFO] running `Command { std: "docker" "start" "-a" "89ca965e06fc4d9f80f2f1ed037921ad382b51ecf8d3d56cb297e90829b669dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling butterfly-fuzz v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "89ca965e06fc4d9f80f2f1ed037921ad382b51ecf8d3d56cb297e90829b669dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ca965e06fc4d9f80f2f1ed037921ad382b51ecf8d3d56cb297e90829b669dc", kill_on_drop: false }`
[INFO] [stdout] 89ca965e06fc4d9f80f2f1ed037921ad382b51ecf8d3d56cb297e90829b669dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 90515d1e252ffed830702a6392d83f03cb8201d6b93932f61548636c3bc2fd4e
[INFO] running `Command { std: "docker" "start" "-a" "90515d1e252ffed830702a6392d83f03cb8201d6b93932f61548636c3bc2fd4e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/butterfly_fuzz-37e5f9dd808ffb80)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test mutators::crossover::tests::test_insert_empty ... ok
[INFO] [stdout] test mutators::crossover::tests::bench_mutator_replace ... ok
[INFO] [stdout] test mutators::crossover::tests::bench_mutator_insert  ... ok
[INFO] [stdout] test mutators::crossover::tests::test_insert_len1 ... ok
[INFO] [stdout] test mutators::crossover::tests::test_replace_len1 ... ok
[INFO] [stdout] test mutators::crossover::tests::test_replace_empty ... ok
[INFO] [stdout] test mutators::crossover::tests::test_insert_resize ... ok
[INFO] [stdout] test mutators::crossover::tests::test_mutator_insert ... ok
[INFO] [stdout] test observer::benchmarks::memory_footprint            ... ignored
[INFO] [stdout] test observer::benchmarks::bench_duplicates            ... ok
[INFO] [stdout] test mutators::splice::tests::test_splice_resize ... ok
[INFO] [stdout] test mutators::splice::tests::test_splice_empty ... ok
[INFO] [stdout] test mutators::crossover::tests::test_replace_resize ... ok
[INFO] [stdout] test mutators::crossover::tests::test_mutator_replace ... ok
[INFO] [stdout] test observer::benchmarks::bench_insertions            ... ok
[INFO] [stdout] test mutators::splice::tests::test_splice_len1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "90515d1e252ffed830702a6392d83f03cb8201d6b93932f61548636c3bc2fd4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90515d1e252ffed830702a6392d83f03cb8201d6b93932f61548636c3bc2fd4e", kill_on_drop: false }`
[INFO] [stdout] 90515d1e252ffed830702a6392d83f03cb8201d6b93932f61548636c3bc2fd4e