[INFO] crate fuzzcheck_mutators 0.3.0 is already in cache
[INFO] testing fuzzcheck_mutators-0.3.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate fuzzcheck_mutators 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate fuzzcheck_mutators 0.3.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzzcheck_mutators 0.3.0
[INFO] finished tweaking crates.io crate fuzzcheck_mutators 0.3.0
[INFO] tweaked toml for crates.io crate fuzzcheck_mutators 0.3.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate fuzzcheck_mutators 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27554be0340cb3296a409af0201dc56c79a74f4caf0e134e444dbce3233b6a02
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "27554be0340cb3296a409af0201dc56c79a74f4caf0e134e444dbce3233b6a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27554be0340cb3296a409af0201dc56c79a74f4caf0e134e444dbce3233b6a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27554be0340cb3296a409af0201dc56c79a74f4caf0e134e444dbce3233b6a02", kill_on_drop: false }`
[INFO] [stdout] 27554be0340cb3296a409af0201dc56c79a74f4caf0e134e444dbce3233b6a02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b99049ede8718d521f7173a97aca842c15f93d183ebc150de4596357ad3493a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8b99049ede8718d521f7173a97aca842c15f93d183ebc150de4596357ad3493a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fuzzcheck_traits v0.3.0
[INFO] [stderr]    Compiling fuzzcheck_mutators_derive v0.3.0
[INFO] [stderr]    Compiling fastrand v1.3.3
[INFO] [stderr]    Compiling fuzzcheck_mutators v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "8b99049ede8718d521f7173a97aca842c15f93d183ebc150de4596357ad3493a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b99049ede8718d521f7173a97aca842c15f93d183ebc150de4596357ad3493a", kill_on_drop: false }`
[INFO] [stdout] 8b99049ede8718d521f7173a97aca842c15f93d183ebc150de4596357ad3493a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e966eda70b0d75f07f1ea1a7addc3eb8f055d8e7c76d4883e3ea87ab85968dbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e966eda70b0d75f07f1ea1a7addc3eb8f055d8e7c76d4883e3ea87ab85968dbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling fuzzcheck_mutators v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/derive_struct.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "e966eda70b0d75f07f1ea1a7addc3eb8f055d8e7c76d4883e3ea87ab85968dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e966eda70b0d75f07f1ea1a7addc3eb8f055d8e7c76d4883e3ea87ab85968dbb", kill_on_drop: false }`
[INFO] [stdout] e966eda70b0d75f07f1ea1a7addc3eb8f055d8e7c76d4883e3ea87ab85968dbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3ac3ff2663eacf906a90fbd75ad7c6cd9a559a585d332e6a2b3a9453217634e5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3ac3ff2663eacf906a90fbd75ad7c6cd9a559a585d332e6a2b3a9453217634e5", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/derive_struct.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fuzzcheck_mutators-476724dd1cf55d0c
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fuzzcheck_mutators
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3ac3ff2663eacf906a90fbd75ad7c6cd9a559a585d332e6a2b3a9453217634e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac3ff2663eacf906a90fbd75ad7c6cd9a559a585d332e6a2b3a9453217634e5", kill_on_drop: false }`
[INFO] [stdout] 3ac3ff2663eacf906a90fbd75ad7c6cd9a559a585d332e6a2b3a9453217634e5