[INFO] fetching crate srws 0.2.3...
[INFO] testing srws-0.2.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate srws 0.2.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate srws 0.2.3 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 srws 0.2.3
[INFO] finished tweaking crates.io crate srws 0.2.3
[INFO] tweaked toml for crates.io crate srws 0.2.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate srws 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] ccb5b589e8a2cae84bb23717951b782915c7ecf65b8d011436b4f971cbb2e7d0
[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" "ccb5b589e8a2cae84bb23717951b782915c7ecf65b8d011436b4f971cbb2e7d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccb5b589e8a2cae84bb23717951b782915c7ecf65b8d011436b4f971cbb2e7d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccb5b589e8a2cae84bb23717951b782915c7ecf65b8d011436b4f971cbb2e7d0", kill_on_drop: false }`
[INFO] [stdout] ccb5b589e8a2cae84bb23717951b782915c7ecf65b8d011436b4f971cbb2e7d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 3a46bc2bcc6933d60b1eb13d281c6eceb8ba2b47fb67f834281533fcefeb10d1
[INFO] running `Command { std: "docker" "start" "-a" "3a46bc2bcc6933d60b1eb13d281c6eceb8ba2b47fb67f834281533fcefeb10d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling readconfig v0.2.5
[INFO] [stderr]    Compiling srws v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "3a46bc2bcc6933d60b1eb13d281c6eceb8ba2b47fb67f834281533fcefeb10d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a46bc2bcc6933d60b1eb13d281c6eceb8ba2b47fb67f834281533fcefeb10d1", kill_on_drop: false }`
[INFO] [stdout] 3a46bc2bcc6933d60b1eb13d281c6eceb8ba2b47fb67f834281533fcefeb10d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 27ffc4b96142aa2cabf0611e7778c4fffae7747806163d8c891da83f8c148b0b
[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" "27ffc4b96142aa2cabf0611e7778c4fffae7747806163d8c891da83f8c148b0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling srws v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "27ffc4b96142aa2cabf0611e7778c4fffae7747806163d8c891da83f8c148b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ffc4b96142aa2cabf0611e7778c4fffae7747806163d8c891da83f8c148b0b", kill_on_drop: false }`
[INFO] [stdout] 27ffc4b96142aa2cabf0611e7778c4fffae7747806163d8c891da83f8c148b0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] b121ada4cfef4a9271bb8e352892bbff8e6b086cb9115bee01dccabc7383d0b9
[INFO] running `Command { std: "docker" "start" "-a" "b121ada4cfef4a9271bb8e352892bbff8e6b086cb9115bee01dccabc7383d0b9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/srws-36c88a4607a148e4)
[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" "b121ada4cfef4a9271bb8e352892bbff8e6b086cb9115bee01dccabc7383d0b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b121ada4cfef4a9271bb8e352892bbff8e6b086cb9115bee01dccabc7383d0b9", kill_on_drop: false }`
[INFO] [stdout] b121ada4cfef4a9271bb8e352892bbff8e6b086cb9115bee01dccabc7383d0b9