[INFO] fetching crate ref_clone_derive 0.7.0...
[INFO] testing ref_clone_derive-0.7.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ref_clone_derive 0.7.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ref_clone_derive 0.7.0 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 ref_clone_derive 0.7.0
[INFO] finished tweaking crates.io crate ref_clone_derive 0.7.0
[INFO] tweaked toml for crates.io crate ref_clone_derive 0.7.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4c0f5837a6b6cf12c4332d98ea60e4e0de8ea53e321cabe402156ea5b8e6b3f7
[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" "4c0f5837a6b6cf12c4332d98ea60e4e0de8ea53e321cabe402156ea5b8e6b3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c0f5837a6b6cf12c4332d98ea60e4e0de8ea53e321cabe402156ea5b8e6b3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c0f5837a6b6cf12c4332d98ea60e4e0de8ea53e321cabe402156ea5b8e6b3f7", kill_on_drop: false }`
[INFO] [stdout] 4c0f5837a6b6cf12c4332d98ea60e4e0de8ea53e321cabe402156ea5b8e6b3f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 358b9b3b843b4f75745b33b3034ea9866c9606afefd03c2e4c1980eee65df2d2
[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" "358b9b3b843b4f75745b33b3034ea9866c9606afefd03c2e4c1980eee65df2d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref_clone_derive v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "358b9b3b843b4f75745b33b3034ea9866c9606afefd03c2e4c1980eee65df2d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "358b9b3b843b4f75745b33b3034ea9866c9606afefd03c2e4c1980eee65df2d2", kill_on_drop: false }`
[INFO] [stdout] 358b9b3b843b4f75745b33b3034ea9866c9606afefd03c2e4c1980eee65df2d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] d20ac60da240213741e3672c81a3912dd69bc0acf5d69c51d45946d17c6cefd5
[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" "d20ac60da240213741e3672c81a3912dd69bc0acf5d69c51d45946d17c6cefd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref_clone_derive v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "d20ac60da240213741e3672c81a3912dd69bc0acf5d69c51d45946d17c6cefd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d20ac60da240213741e3672c81a3912dd69bc0acf5d69c51d45946d17c6cefd5", kill_on_drop: false }`
[INFO] [stdout] d20ac60da240213741e3672c81a3912dd69bc0acf5d69c51d45946d17c6cefd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 24768f27a95ff4b714cffa7fab1358f212441088eb24041b3d9d3cef8f756ac7
[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" "24768f27a95ff4b714cffa7fab1358f212441088eb24041b3d9d3cef8f756ac7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ref_clone_derive-810aba041cc74fe7
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ref_clone_derive
[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] [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" "24768f27a95ff4b714cffa7fab1358f212441088eb24041b3d9d3cef8f756ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24768f27a95ff4b714cffa7fab1358f212441088eb24041b3d9d3cef8f756ac7", kill_on_drop: false }`
[INFO] [stdout] 24768f27a95ff4b714cffa7fab1358f212441088eb24041b3d9d3cef8f756ac7