[INFO] fetching crate display_derive 0.0.0...
[INFO] testing display_derive-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate display_derive 0.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate display_derive 0.0.0 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 display_derive 0.0.0
[INFO] finished tweaking crates.io crate display_derive 0.0.0
[INFO] tweaked toml for crates.io crate display_derive 0.0.0 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] 9e82f94837c5fca7a8f15ae9df1da4473207abe1e25822aac2eb779976e2a9dc
[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" "9e82f94837c5fca7a8f15ae9df1da4473207abe1e25822aac2eb779976e2a9dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e82f94837c5fca7a8f15ae9df1da4473207abe1e25822aac2eb779976e2a9dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e82f94837c5fca7a8f15ae9df1da4473207abe1e25822aac2eb779976e2a9dc", kill_on_drop: false }`
[INFO] [stdout] 9e82f94837c5fca7a8f15ae9df1da4473207abe1e25822aac2eb779976e2a9dc
[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] [stdout] eb397f91d3258d1f0916763303a0458db507df84c59bd5e25b4eb670832bfbd2
[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" "eb397f91d3258d1f0916763303a0458db507df84c59bd5e25b4eb670832bfbd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling display_derive v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "eb397f91d3258d1f0916763303a0458db507df84c59bd5e25b4eb670832bfbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb397f91d3258d1f0916763303a0458db507df84c59bd5e25b4eb670832bfbd2", kill_on_drop: false }`
[INFO] [stdout] eb397f91d3258d1f0916763303a0458db507df84c59bd5e25b4eb670832bfbd2
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d2ac3ea03deb189d664342862dd42e571574b8def68e6e7351cad71b9398d82e
[INFO] running `Command { std: "docker" "start" "-a" "d2ac3ea03deb189d664342862dd42e571574b8def68e6e7351cad71b9398d82e", kill_on_drop: false }`
[INFO] [stderr]    Compiling display_derive v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "d2ac3ea03deb189d664342862dd42e571574b8def68e6e7351cad71b9398d82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2ac3ea03deb189d664342862dd42e571574b8def68e6e7351cad71b9398d82e", kill_on_drop: false }`
[INFO] [stdout] d2ac3ea03deb189d664342862dd42e571574b8def68e6e7351cad71b9398d82e
[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] f4c657eba90a6d9d85302f9217e2e1deeee37e829acaa646e117bca7b56122d6
[INFO] running `Command { std: "docker" "start" "-a" "f4c657eba90a6d9d85302f9217e2e1deeee37e829acaa646e117bca7b56122d6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/display_derive-3130efa9332b01d1
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-101d9b052edb1720
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tuple_struct ... ok
[INFO] [stdout] test record_struct ... ok
[INFO] [stdout] test unit_struct ... ok
[INFO] [stdout] test enum_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests display_derive
[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" "f4c657eba90a6d9d85302f9217e2e1deeee37e829acaa646e117bca7b56122d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c657eba90a6d9d85302f9217e2e1deeee37e829acaa646e117bca7b56122d6", kill_on_drop: false }`
[INFO] [stdout] f4c657eba90a6d9d85302f9217e2e1deeee37e829acaa646e117bca7b56122d6