[INFO] crate learning-trait 0.1.0 is already in cache
[INFO] testing learning-trait-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate learning-trait 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate learning-trait 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate learning-trait 0.1.0
[INFO] finished tweaking crates.io crate learning-trait 0.1.0
[INFO] tweaked toml for crates.io crate learning-trait 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc4c43abdfcdc0fc8b00e6fc5e1f41bffffeb114374b7b0b57cc466ed1330d4e
[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" "fc4c43abdfcdc0fc8b00e6fc5e1f41bffffeb114374b7b0b57cc466ed1330d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc4c43abdfcdc0fc8b00e6fc5e1f41bffffeb114374b7b0b57cc466ed1330d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4c43abdfcdc0fc8b00e6fc5e1f41bffffeb114374b7b0b57cc466ed1330d4e", kill_on_drop: false }`
[INFO] [stdout] fc4c43abdfcdc0fc8b00e6fc5e1f41bffffeb114374b7b0b57cc466ed1330d4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ab05018f50b020e2afe01ae12ff4c7cba6adff8c1e182869ced33427ca9d57e
[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" "2ab05018f50b020e2afe01ae12ff4c7cba6adff8c1e182869ced33427ca9d57e", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "2ab05018f50b020e2afe01ae12ff4c7cba6adff8c1e182869ced33427ca9d57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab05018f50b020e2afe01ae12ff4c7cba6adff8c1e182869ced33427ca9d57e", kill_on_drop: false }`
[INFO] [stdout] 2ab05018f50b020e2afe01ae12ff4c7cba6adff8c1e182869ced33427ca9d57e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-07-24" "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] c1a1d7475e6cc719107a60d2beb01dd85769828ae28cd789250c27b30204f91e
[INFO] running `Command { std: "docker" "start" "-a" "c1a1d7475e6cc719107a60d2beb01dd85769828ae28cd789250c27b30204f91e", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "c1a1d7475e6cc719107a60d2beb01dd85769828ae28cd789250c27b30204f91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a1d7475e6cc719107a60d2beb01dd85769828ae28cd789250c27b30204f91e", kill_on_drop: false }`
[INFO] [stdout] c1a1d7475e6cc719107a60d2beb01dd85769828ae28cd789250c27b30204f91e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1ec3ff96a26b0d6776c7d9a29a76e3e25f690d07007782be2056d66baba608e
[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" "c1ec3ff96a26b0d6776c7d9a29a76e3e25f690d07007782be2056d66baba608e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/learning_trait-60aafe3d3c5db235
[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" "c1ec3ff96a26b0d6776c7d9a29a76e3e25f690d07007782be2056d66baba608e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ec3ff96a26b0d6776c7d9a29a76e3e25f690d07007782be2056d66baba608e", kill_on_drop: false }`
[INFO] [stdout] c1ec3ff96a26b0d6776c7d9a29a76e3e25f690d07007782be2056d66baba608e