[INFO] fetching crate fnmutant 0.1.0...
[INFO] testing fnmutant-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate fnmutant 0.1.0 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate fnmutant 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fnmutant 0.1.0
[INFO] finished tweaking crates.io crate fnmutant 0.1.0
[INFO] tweaked toml for crates.io crate fnmutant 0.1.0 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdf0dc8eeca9666d91b90e6517e4dd640626d505ecc4d8e0467208514143ae11
[INFO] running `Command { std: "docker" "start" "-a" "cdf0dc8eeca9666d91b90e6517e4dd640626d505ecc4d8e0467208514143ae11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdf0dc8eeca9666d91b90e6517e4dd640626d505ecc4d8e0467208514143ae11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf0dc8eeca9666d91b90e6517e4dd640626d505ecc4d8e0467208514143ae11", kill_on_drop: false }`
[INFO] [stdout] cdf0dc8eeca9666d91b90e6517e4dd640626d505ecc4d8e0467208514143ae11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feb4dfdc44fbdbca77bbb59ae78c9ceb206f86226ae120252b457f8b11318faf
[INFO] running `Command { std: "docker" "start" "-a" "feb4dfdc44fbdbca77bbb59ae78c9ceb206f86226ae120252b457f8b11318faf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fnmutant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "feb4dfdc44fbdbca77bbb59ae78c9ceb206f86226ae120252b457f8b11318faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb4dfdc44fbdbca77bbb59ae78c9ceb206f86226ae120252b457f8b11318faf", kill_on_drop: false }`
[INFO] [stdout] feb4dfdc44fbdbca77bbb59ae78c9ceb206f86226ae120252b457f8b11318faf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64201f16368fdaabc390702abd747091778fa1e927a5b5ecc8bbd09887171058
[INFO] running `Command { std: "docker" "start" "-a" "64201f16368fdaabc390702abd747091778fa1e927a5b5ecc8bbd09887171058", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnmutant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "64201f16368fdaabc390702abd747091778fa1e927a5b5ecc8bbd09887171058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64201f16368fdaabc390702abd747091778fa1e927a5b5ecc8bbd09887171058", kill_on_drop: false }`
[INFO] [stdout] 64201f16368fdaabc390702abd747091778fa1e927a5b5ecc8bbd09887171058
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] efff374e5b3c1e1e8585cad53e5513fa5b914ae48b7aa711c49986f0236a9fb4
[INFO] running `Command { std: "docker" "start" "-a" "efff374e5b3c1e1e8585cad53e5513fa5b914ae48b7aa711c49986f0236a9fb4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fnmutant-48839708630306c3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fnmutant
[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" "efff374e5b3c1e1e8585cad53e5513fa5b914ae48b7aa711c49986f0236a9fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efff374e5b3c1e1e8585cad53e5513fa5b914ae48b7aa711c49986f0236a9fb4", kill_on_drop: false }`
[INFO] [stdout] efff374e5b3c1e1e8585cad53e5513fa5b914ae48b7aa711c49986f0236a9fb4