[INFO] fetching crate midas_python 0.2.1...
[INFO] testing midas_python-0.2.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate midas_python 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate midas_python 0.2.1 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 midas_python 0.2.1
[INFO] finished tweaking crates.io crate midas_python 0.2.1
[INFO] tweaked toml for crates.io crate midas_python 0.2.1 written to /workspace/builds/worker-7/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-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" "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] [stdout] eabbc6766ba84315a8a0c9aa28d0723dfe2100cf5ba800b3187f4f933858a993
[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" "eabbc6766ba84315a8a0c9aa28d0723dfe2100cf5ba800b3187f4f933858a993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eabbc6766ba84315a8a0c9aa28d0723dfe2100cf5ba800b3187f4f933858a993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eabbc6766ba84315a8a0c9aa28d0723dfe2100cf5ba800b3187f4f933858a993", kill_on_drop: false }`
[INFO] [stdout] eabbc6766ba84315a8a0c9aa28d0723dfe2100cf5ba800b3187f4f933858a993
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dd7546b7da8bce1c24b013d1a86008f7cd9e1d6271ce00bbd4065ba0a07d75e0
[INFO] running `Command { std: "docker" "start" "-a" "dd7546b7da8bce1c24b013d1a86008f7cd9e1d6271ce00bbd4065ba0a07d75e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling cpython v0.4.1
[INFO] [stderr]    Compiling python3-sys v0.4.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling midas_rs v0.2.1
[INFO] [stderr]    Compiling midas_python v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.59s
[INFO] running `Command { std: "docker" "inspect" "dd7546b7da8bce1c24b013d1a86008f7cd9e1d6271ce00bbd4065ba0a07d75e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7546b7da8bce1c24b013d1a86008f7cd9e1d6271ce00bbd4065ba0a07d75e0", kill_on_drop: false }`
[INFO] [stdout] dd7546b7da8bce1c24b013d1a86008f7cd9e1d6271ce00bbd4065ba0a07d75e0
[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" "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] e4a8af13319f00a4a0723f400bbf3a643ac67f9bc3545ee682b612fe98fbd28d
[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" "e4a8af13319f00a4a0723f400bbf3a643ac67f9bc3545ee682b612fe98fbd28d", kill_on_drop: false }`
[INFO] [stderr]    Compiling midas_python v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "e4a8af13319f00a4a0723f400bbf3a643ac67f9bc3545ee682b612fe98fbd28d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a8af13319f00a4a0723f400bbf3a643ac67f9bc3545ee682b612fe98fbd28d", kill_on_drop: false }`
[INFO] [stdout] e4a8af13319f00a4a0723f400bbf3a643ac67f9bc3545ee682b612fe98fbd28d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] ae85d75d30efa6f4ddb5c39dadf185e6e277a0c8e33b9e370d18585cdf9091da
[INFO] running `Command { std: "docker" "start" "-a" "ae85d75d30efa6f4ddb5c39dadf185e6e277a0c8e33b9e370d18585cdf9091da", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/midas-7e9267eae158ec93
[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" "ae85d75d30efa6f4ddb5c39dadf185e6e277a0c8e33b9e370d18585cdf9091da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae85d75d30efa6f4ddb5c39dadf185e6e277a0c8e33b9e370d18585cdf9091da", kill_on_drop: false }`
[INFO] [stdout] ae85d75d30efa6f4ddb5c39dadf185e6e277a0c8e33b9e370d18585cdf9091da