[INFO] fetching crate persawkv 0.0.0-alpha.1...
[INFO] testing persawkv-0.0.0-alpha.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate persawkv 0.0.0-alpha.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate persawkv 0.0.0-alpha.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persawkv 0.0.0-alpha.1
[INFO] finished tweaking crates.io crate persawkv 0.0.0-alpha.1
[INFO] tweaked toml for crates.io crate persawkv 0.0.0-alpha.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded delegate v0.3.0
[INFO] [stderr]   Downloaded persy v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-01-01" "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] 0699be0844d4f2428370290355e6296d0a6bff6aafe0d8553e513637cf389c98
[INFO] running `Command { std: "docker" "start" "-a" "0699be0844d4f2428370290355e6296d0a6bff6aafe0d8553e513637cf389c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0699be0844d4f2428370290355e6296d0a6bff6aafe0d8553e513637cf389c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0699be0844d4f2428370290355e6296d0a6bff6aafe0d8553e513637cf389c98", kill_on_drop: false }`
[INFO] [stdout] 0699be0844d4f2428370290355e6296d0a6bff6aafe0d8553e513637cf389c98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bef33f6c4e6f96de559b22eab8cc41099df3190faef715e8e0f507b9b8bd5b6
[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" "4bef33f6c4e6f96de559b22eab8cc41099df3190faef715e8e0f507b9b8bd5b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unsigned-varint v0.2.3
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling persy v0.7.1
[INFO] [stderr]    Compiling delegate v0.3.0
[INFO] [stderr]    Compiling persawkv v0.0.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `persy`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name persy --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/persy-0.7.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=534c4ac335ab767c -C extra-filename=-534c4ac335ab767c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-2f9d4a3f19411b1e.rmeta --extern crc=/opt/rustwide/target/debug/deps/libcrc-699ee3a7682dc9ac.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-5bf55d756f1957ec.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-9dcb0988639d7e58.rmeta --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-7a06d32fee8e4d25.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7b71cf6ad96983b5.rmeta --extern unsigned_varint=/opt/rustwide/target/debug/deps/libunsigned_varint-3fdc9cc69196484f.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "4bef33f6c4e6f96de559b22eab8cc41099df3190faef715e8e0f507b9b8bd5b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bef33f6c4e6f96de559b22eab8cc41099df3190faef715e8e0f507b9b8bd5b6", kill_on_drop: false }`
[INFO] [stdout] 4bef33f6c4e6f96de559b22eab8cc41099df3190faef715e8e0f507b9b8bd5b6