[INFO] fetching crate korq 0.4.0...
[INFO] testing korq-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate korq 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate korq 0.4.0 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 korq 0.4.0
[INFO] finished tweaking crates.io crate korq 0.4.0
[INFO] tweaked toml for crates.io crate korq 0.4.0 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d02d5d9d9601dc972983776918a0bd25e25d41dabc9c243dbc1f96ab088f0bb
[INFO] running `Command { std: "docker" "start" "-a" "9d02d5d9d9601dc972983776918a0bd25e25d41dabc9c243dbc1f96ab088f0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d02d5d9d9601dc972983776918a0bd25e25d41dabc9c243dbc1f96ab088f0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d02d5d9d9601dc972983776918a0bd25e25d41dabc9c243dbc1f96ab088f0bb", kill_on_drop: false }`
[INFO] [stdout] 9d02d5d9d9601dc972983776918a0bd25e25d41dabc9c243dbc1f96ab088f0bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 871fbb5717dcc074a90245a06e88b5507dce0f62110c1bdfc6dba36928c4631d
[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" "871fbb5717dcc074a90245a06e88b5507dce0f62110c1bdfc6dba36928c4631d", kill_on_drop: false }`
[INFO] [stderr]    Compiling k8s-openapi v0.2.0
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling serde_yaml v0.7.5
[INFO] [stderr]    Compiling url_serde v0.2.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling skeptic v0.6.1
[INFO] [stderr]    Compiling carboxyl v0.2.1
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling reqwest v0.9.24
[INFO] [stderr]    Compiling qube v0.4.0
[INFO] [stderr] error: could not compile `k8s-openapi`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name k8s_openapi /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/k8s-openapi-0.2.0/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 --cfg 'feature="v1_9"' -C metadata=a56984db39c5ed07 -C extra-filename=-a56984db39c5ed07 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-394e463f53b3ae27.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-f61468f99c6e94f8.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-5dcd0c10a9d24b15.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-cdc00dc392329b33.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-bf7b07aad289df76.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-295407260261f8e1.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-b1ad55a490a79752.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "871fbb5717dcc074a90245a06e88b5507dce0f62110c1bdfc6dba36928c4631d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "871fbb5717dcc074a90245a06e88b5507dce0f62110c1bdfc6dba36928c4631d", kill_on_drop: false }`
[INFO] [stdout] 871fbb5717dcc074a90245a06e88b5507dce0f62110c1bdfc6dba36928c4631d