[INFO] fetching crate fnmutant 0.1.0...
[INFO] testing fnmutant-0.1.0 against beta-2022-04-10 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 beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ba974e017a36c81f0bb9c57e25cdf8674b9aebdcd91c07421cf809cc50a6691
[INFO] running `Command { std: "docker" "start" "-a" "5ba974e017a36c81f0bb9c57e25cdf8674b9aebdcd91c07421cf809cc50a6691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ba974e017a36c81f0bb9c57e25cdf8674b9aebdcd91c07421cf809cc50a6691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba974e017a36c81f0bb9c57e25cdf8674b9aebdcd91c07421cf809cc50a6691", kill_on_drop: false }`
[INFO] [stdout] 5ba974e017a36c81f0bb9c57e25cdf8674b9aebdcd91c07421cf809cc50a6691
[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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fae107873a46e2231e6de9147b7dec386352c1372ebdb0dec47939ad64f48ed
[INFO] running `Command { std: "docker" "start" "-a" "0fae107873a46e2231e6de9147b7dec386352c1372ebdb0dec47939ad64f48ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnmutant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "0fae107873a46e2231e6de9147b7dec386352c1372ebdb0dec47939ad64f48ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fae107873a46e2231e6de9147b7dec386352c1372ebdb0dec47939ad64f48ed", kill_on_drop: false }`
[INFO] [stdout] 0fae107873a46e2231e6de9147b7dec386352c1372ebdb0dec47939ad64f48ed
[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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cbf4829418b46299ef37f5275ffdb9cdb984be61b232655a200c4644047e0df
[INFO] running `Command { std: "docker" "start" "-a" "7cbf4829418b46299ef37f5275ffdb9cdb984be61b232655a200c4644047e0df", 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 test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/fnmutant-cbcd40768399ec5f)
[INFO] running `Command { std: "docker" "inspect" "7cbf4829418b46299ef37f5275ffdb9cdb984be61b232655a200c4644047e0df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbf4829418b46299ef37f5275ffdb9cdb984be61b232655a200c4644047e0df", kill_on_drop: false }`
[INFO] [stdout] 7cbf4829418b46299ef37f5275ffdb9cdb984be61b232655a200c4644047e0df
[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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c547155738c2ee9f7252bcbdc1f3d9637d7623b939c09383af9caf4a657155a8
[INFO] running `Command { std: "docker" "start" "-a" "c547155738c2ee9f7252bcbdc1f3d9637d7623b939c09383af9caf4a657155a8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fnmutant-cbcd40768399ec5f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests fnmutant
[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] [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" "c547155738c2ee9f7252bcbdc1f3d9637d7623b939c09383af9caf4a657155a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c547155738c2ee9f7252bcbdc1f3d9637d7623b939c09383af9caf4a657155a8", kill_on_drop: false }`
[INFO] [stdout] c547155738c2ee9f7252bcbdc1f3d9637d7623b939c09383af9caf4a657155a8