[INFO] fetching crate Skillwon 0.0.1...
[INFO] testing Skillwon-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate Skillwon 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate Skillwon 0.0.1 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 Skillwon 0.0.1
[INFO] finished tweaking crates.io crate Skillwon 0.0.1
[INFO] tweaked toml for crates.io crate Skillwon 0.0.1 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 16fae803bdd7bae0a9ad3f1521434af4b6a5db3f9f3f1f504596f95697e8e04e
[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" "16fae803bdd7bae0a9ad3f1521434af4b6a5db3f9f3f1f504596f95697e8e04e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16fae803bdd7bae0a9ad3f1521434af4b6a5db3f9f3f1f504596f95697e8e04e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16fae803bdd7bae0a9ad3f1521434af4b6a5db3f9f3f1f504596f95697e8e04e", kill_on_drop: false }`
[INFO] [stdout] 16fae803bdd7bae0a9ad3f1521434af4b6a5db3f9f3f1f504596f95697e8e04e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7e379e02d604594e6ca0a709f5c0160b7d9219b49e42ba77d4b4b283b99b31ab
[INFO] running `Command { std: "docker" "start" "-a" "7e379e02d604594e6ca0a709f5c0160b7d9219b49e42ba77d4b4b283b99b31ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling Skillwon v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "7e379e02d604594e6ca0a709f5c0160b7d9219b49e42ba77d4b4b283b99b31ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e379e02d604594e6ca0a709f5c0160b7d9219b49e42ba77d4b4b283b99b31ab", kill_on_drop: false }`
[INFO] [stdout] 7e379e02d604594e6ca0a709f5c0160b7d9219b49e42ba77d4b4b283b99b31ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f4900a4edff2cb4c82d871c40e19d102f7c3fe55ed80b10fd43d8f50abb2d107
[INFO] running `Command { std: "docker" "start" "-a" "f4900a4edff2cb4c82d871c40e19d102f7c3fe55ed80b10fd43d8f50abb2d107", kill_on_drop: false }`
[INFO] [stderr]    Compiling Skillwon v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "f4900a4edff2cb4c82d871c40e19d102f7c3fe55ed80b10fd43d8f50abb2d107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4900a4edff2cb4c82d871c40e19d102f7c3fe55ed80b10fd43d8f50abb2d107", kill_on_drop: false }`
[INFO] [stdout] f4900a4edff2cb4c82d871c40e19d102f7c3fe55ed80b10fd43d8f50abb2d107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 06aae5a5713acfcee8329664b3e55a11baa0b721d9aec6268b7b410638656e13
[INFO] running `Command { std: "docker" "start" "-a" "06aae5a5713acfcee8329664b3e55a11baa0b721d9aec6268b7b410638656e13", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Skillwon-49c56165aff95481)
[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] [stderr]    Doc-tests Skillwon
[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" "06aae5a5713acfcee8329664b3e55a11baa0b721d9aec6268b7b410638656e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06aae5a5713acfcee8329664b3e55a11baa0b721d9aec6268b7b410638656e13", kill_on_drop: false }`
[INFO] [stdout] 06aae5a5713acfcee8329664b3e55a11baa0b721d9aec6268b7b410638656e13