[INFO] fetching crate solana_libra_nibble 0.0.1-sol5...
[INFO] testing solana_libra_nibble-0.0.1-sol5 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate solana_libra_nibble 0.0.1-sol5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate solana_libra_nibble 0.0.1-sol5 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 solana_libra_nibble 0.0.1-sol5
[INFO] finished tweaking crates.io crate solana_libra_nibble 0.0.1-sol5
[INFO] tweaked toml for crates.io crate solana_libra_nibble 0.0.1-sol5 written to /workspace/builds/worker-8/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 7e3256cac483b397b358fd38f7af93f300cf619e509819b205619ba43bdd8c81
[INFO] running `Command { std: "docker" "start" "-a" "7e3256cac483b397b358fd38f7af93f300cf619e509819b205619ba43bdd8c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e3256cac483b397b358fd38f7af93f300cf619e509819b205619ba43bdd8c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e3256cac483b397b358fd38f7af93f300cf619e509819b205619ba43bdd8c81", kill_on_drop: false }`
[INFO] [stdout] 7e3256cac483b397b358fd38f7af93f300cf619e509819b205619ba43bdd8c81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4491e2513f0510448e56d4768e4801d5c557dac3761b70bd0558afe92376510
[INFO] running `Command { std: "docker" "start" "-a" "c4491e2513f0510448e56d4768e4801d5c557dac3761b70bd0558afe92376510", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling solana_libra_nibble v0.0.1-sol5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.84s
[INFO] running `Command { std: "docker" "inspect" "c4491e2513f0510448e56d4768e4801d5c557dac3761b70bd0558afe92376510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4491e2513f0510448e56d4768e4801d5c557dac3761b70bd0558afe92376510", kill_on_drop: false }`
[INFO] [stdout] c4491e2513f0510448e56d4768e4801d5c557dac3761b70bd0558afe92376510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a1c5c8277fa00d24662bccd21a2c995f18d5de8ba3854766c1033d40c0e13ed
[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" "4a1c5c8277fa00d24662bccd21a2c995f18d5de8ba3854766c1033d40c0e13ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling solana_libra_nibble v0.0.1-sol5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "4a1c5c8277fa00d24662bccd21a2c995f18d5de8ba3854766c1033d40c0e13ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a1c5c8277fa00d24662bccd21a2c995f18d5de8ba3854766c1033d40c0e13ed", kill_on_drop: false }`
[INFO] [stdout] 4a1c5c8277fa00d24662bccd21a2c995f18d5de8ba3854766c1033d40c0e13ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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] e41dbf55424bac8253be77b2715718fea4c8ca4dc8aa47d0775b68e6ea8a041d
[INFO] running `Command { std: "docker" "start" "-a" "e41dbf55424bac8253be77b2715718fea4c8ca4dc8aa47d0775b68e6ea8a041d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/solana_libra_nibble-00530c7a16386811
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests solana_libra_nibble
[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] [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" "e41dbf55424bac8253be77b2715718fea4c8ca4dc8aa47d0775b68e6ea8a041d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41dbf55424bac8253be77b2715718fea4c8ca4dc8aa47d0775b68e6ea8a041d", kill_on_drop: false }`
[INFO] [stdout] e41dbf55424bac8253be77b2715718fea4c8ca4dc8aa47d0775b68e6ea8a041d