[INFO] crate bolero-libfuzzer 0.5.0 is already in cache
[INFO] testing bolero-libfuzzer-0.5.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate bolero-libfuzzer 0.5.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate bolero-libfuzzer 0.5.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bolero-libfuzzer 0.5.0
[INFO] finished tweaking crates.io crate bolero-libfuzzer 0.5.0
[INFO] tweaked toml for crates.io crate bolero-libfuzzer 0.5.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c34f9902a75be9b65522def92a5e4b1e079c89c84b45dca85e4b85580a4d19a0
[INFO] running `"docker" "start" "-a" "c34f9902a75be9b65522def92a5e4b1e079c89c84b45dca85e4b85580a4d19a0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling pretty-hex v0.1.1
[INFO] [stderr]    Compiling bolero-libfuzzer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bolero-generator-derive v0.5.2
[INFO] [stderr]    Compiling bolero-generator v0.5.2
[INFO] [stderr]    Compiling bolero-engine v0.5.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.42s
[INFO] running `"docker" "inspect" "c34f9902a75be9b65522def92a5e4b1e079c89c84b45dca85e4b85580a4d19a0"`
[INFO] running `"docker" "rm" "-f" "c34f9902a75be9b65522def92a5e4b1e079c89c84b45dca85e4b85580a4d19a0"`
[INFO] [stdout] c34f9902a75be9b65522def92a5e4b1e079c89c84b45dca85e4b85580a4d19a0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1928142b46f25d507fa8ef2da4bc6cea6b995bd11837431f8a559d179e1d230e
[INFO] running `"docker" "start" "-a" "1928142b46f25d507fa8ef2da4bc6cea6b995bd11837431f8a559d179e1d230e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bolero-libfuzzer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "1928142b46f25d507fa8ef2da4bc6cea6b995bd11837431f8a559d179e1d230e"`
[INFO] running `"docker" "rm" "-f" "1928142b46f25d507fa8ef2da4bc6cea6b995bd11837431f8a559d179e1d230e"`
[INFO] [stdout] 1928142b46f25d507fa8ef2da4bc6cea6b995bd11837431f8a559d179e1d230e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3535a9107b7ae6b72bc0c39e5147e90c96548888690fc8632152683225cba106
[INFO] running `"docker" "start" "-a" "3535a9107b7ae6b72bc0c39e5147e90c96548888690fc8632152683225cba106"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bolero_libfuzzer-6c1cfc68f63a55e0
[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] [stderr]    Doc-tests bolero-libfuzzer
[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 `"docker" "inspect" "3535a9107b7ae6b72bc0c39e5147e90c96548888690fc8632152683225cba106"`
[INFO] running `"docker" "rm" "-f" "3535a9107b7ae6b72bc0c39e5147e90c96548888690fc8632152683225cba106"`
[INFO] [stdout] 3535a9107b7ae6b72bc0c39e5147e90c96548888690fc8632152683225cba106