[INFO] fetching crate substrate-serializer 1.0.0...
[INFO] testing substrate-serializer-1.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate substrate-serializer 1.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate substrate-serializer 1.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate substrate-serializer 1.0.0
[INFO] finished tweaking crates.io crate substrate-serializer 1.0.0
[INFO] tweaked toml for crates.io crate substrate-serializer 1.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 80e1e0542103c66b8cf46006841f0d8061626f4b4ee36f6dc410bb1c0e6818e4
[INFO] running `Command { std: "docker" "start" "-a" "80e1e0542103c66b8cf46006841f0d8061626f4b4ee36f6dc410bb1c0e6818e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80e1e0542103c66b8cf46006841f0d8061626f4b4ee36f6dc410bb1c0e6818e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e1e0542103c66b8cf46006841f0d8061626f4b4ee36f6dc410bb1c0e6818e4", kill_on_drop: false }`
[INFO] [stdout] 80e1e0542103c66b8cf46006841f0d8061626f4b4ee36f6dc410bb1c0e6818e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c02da2b4fbba8ea826817a62a33213869570eba1044742c2d57aad37bae307cd
[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" "c02da2b4fbba8ea826817a62a33213869570eba1044742c2d57aad37bae307cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate-serializer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "c02da2b4fbba8ea826817a62a33213869570eba1044742c2d57aad37bae307cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02da2b4fbba8ea826817a62a33213869570eba1044742c2d57aad37bae307cd", kill_on_drop: false }`
[INFO] [stdout] c02da2b4fbba8ea826817a62a33213869570eba1044742c2d57aad37bae307cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 594a9782485cba914c5531e4e676b9a90433a7fa57c60a44afe5ec08b696dcd6
[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" "594a9782485cba914c5531e4e676b9a90433a7fa57c60a44afe5ec08b696dcd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate-serializer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "594a9782485cba914c5531e4e676b9a90433a7fa57c60a44afe5ec08b696dcd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "594a9782485cba914c5531e4e676b9a90433a7fa57c60a44afe5ec08b696dcd6", kill_on_drop: false }`
[INFO] [stdout] 594a9782485cba914c5531e4e676b9a90433a7fa57c60a44afe5ec08b696dcd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce60262be465c81bf227ec92bd2b08fc5ed5115fd0fd9f3aa7150cddcadba193
[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" "ce60262be465c81bf227ec92bd2b08fc5ed5115fd0fd9f3aa7150cddcadba193", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[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] [stderr]      Running /opt/rustwide/target/debug/deps/substrate_serializer-bfba7e236cc72c41
[INFO] [stderr]    Doc-tests substrate-serializer
[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" "ce60262be465c81bf227ec92bd2b08fc5ed5115fd0fd9f3aa7150cddcadba193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce60262be465c81bf227ec92bd2b08fc5ed5115fd0fd9f3aa7150cddcadba193", kill_on_drop: false }`
[INFO] [stdout] ce60262be465c81bf227ec92bd2b08fc5ed5115fd0fd9f3aa7150cddcadba193