[INFO] fetching crate leveldb-sys 2.0.9...
[INFO] testing leveldb-sys-2.0.9 against 1.55.0 for beta-1.56-1
[INFO] extracting crate leveldb-sys 2.0.9 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate leveldb-sys 2.0.9 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate leveldb-sys 2.0.9
[INFO] finished tweaking crates.io crate leveldb-sys 2.0.9
[INFO] tweaked toml for crates.io crate leveldb-sys 2.0.9 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] aca08d1b9aa130f6c061977c9ab84ee3abaa407202bf62750fbceb764e679060
[INFO] running `Command { std: "docker" "start" "-a" "aca08d1b9aa130f6c061977c9ab84ee3abaa407202bf62750fbceb764e679060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aca08d1b9aa130f6c061977c9ab84ee3abaa407202bf62750fbceb764e679060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aca08d1b9aa130f6c061977c9ab84ee3abaa407202bf62750fbceb764e679060", kill_on_drop: false }`
[INFO] [stdout] aca08d1b9aa130f6c061977c9ab84ee3abaa407202bf62750fbceb764e679060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 362bbfd179447c1f2af5dc73a679bb8d7623d1dcabf9de6d2f94df7c1c4edacb
[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" "362bbfd179447c1f2af5dc73a679bb8d7623d1dcabf9de6d2f94df7c1c4edacb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffi-opaque v2.0.1
[INFO] [stderr]    Compiling leveldb-sys v2.0.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.07s
[INFO] running `Command { std: "docker" "inspect" "362bbfd179447c1f2af5dc73a679bb8d7623d1dcabf9de6d2f94df7c1c4edacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "362bbfd179447c1f2af5dc73a679bb8d7623d1dcabf9de6d2f94df7c1c4edacb", kill_on_drop: false }`
[INFO] [stdout] 362bbfd179447c1f2af5dc73a679bb8d7623d1dcabf9de6d2f94df7c1c4edacb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b724bbf245c61bf18d9dbc47ceb5c57074e12263bb1ad80bbcfa85fd5c2f0a50
[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" "b724bbf245c61bf18d9dbc47ceb5c57074e12263bb1ad80bbcfa85fd5c2f0a50", kill_on_drop: false }`
[INFO] [stderr]    Compiling leveldb-sys v2.0.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "b724bbf245c61bf18d9dbc47ceb5c57074e12263bb1ad80bbcfa85fd5c2f0a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b724bbf245c61bf18d9dbc47ceb5c57074e12263bb1ad80bbcfa85fd5c2f0a50", kill_on_drop: false }`
[INFO] [stdout] b724bbf245c61bf18d9dbc47ceb5c57074e12263bb1ad80bbcfa85fd5c2f0a50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 3c8900919fb5194e233276c3a42a4b602ce72e94d8d6e7fb2ea097c22a3bac38
[INFO] running `Command { std: "docker" "start" "-a" "3c8900919fb5194e233276c3a42a4b602ce72e94d8d6e7fb2ea097c22a3bac38", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leveldb_sys-c91d4751fdd5ee17)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests leveldb-sys
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c8900919fb5194e233276c3a42a4b602ce72e94d8d6e7fb2ea097c22a3bac38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8900919fb5194e233276c3a42a4b602ce72e94d8d6e7fb2ea097c22a3bac38", kill_on_drop: false }`
[INFO] [stdout] 3c8900919fb5194e233276c3a42a4b602ce72e94d8d6e7fb2ea097c22a3bac38