[INFO] fetching crate cnc 0.0.0...
[INFO] testing cnc-0.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate cnc 0.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cnc 0.0.0 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 cnc 0.0.0
[INFO] finished tweaking crates.io crate cnc 0.0.0
[INFO] tweaked toml for crates.io crate cnc 0.0.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 9872a4868c2df29e7dda59972a73eb597c44b7c6eb10d4e1bc6a4d3ec26fff45
[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" "9872a4868c2df29e7dda59972a73eb597c44b7c6eb10d4e1bc6a4d3ec26fff45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9872a4868c2df29e7dda59972a73eb597c44b7c6eb10d4e1bc6a4d3ec26fff45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9872a4868c2df29e7dda59972a73eb597c44b7c6eb10d4e1bc6a4d3ec26fff45", kill_on_drop: false }`
[INFO] [stdout] 9872a4868c2df29e7dda59972a73eb597c44b7c6eb10d4e1bc6a4d3ec26fff45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c1be7538cb28d8c4ac0d6bbd87983b39d806bc1a26261de1e9ac089ca032a590
[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" "c1be7538cb28d8c4ac0d6bbd87983b39d806bc1a26261de1e9ac089ca032a590", kill_on_drop: false }`
[INFO] [stderr]    Compiling cnc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "c1be7538cb28d8c4ac0d6bbd87983b39d806bc1a26261de1e9ac089ca032a590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1be7538cb28d8c4ac0d6bbd87983b39d806bc1a26261de1e9ac089ca032a590", kill_on_drop: false }`
[INFO] [stdout] c1be7538cb28d8c4ac0d6bbd87983b39d806bc1a26261de1e9ac089ca032a590
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2448c5fd34bf4ae3c49d499ebe70d9c02f823a8b8176f953a29ad4fff6a05b32
[INFO] running `Command { std: "docker" "start" "-a" "2448c5fd34bf4ae3c49d499ebe70d9c02f823a8b8176f953a29ad4fff6a05b32", kill_on_drop: false }`
[INFO] [stderr]    Compiling cnc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "2448c5fd34bf4ae3c49d499ebe70d9c02f823a8b8176f953a29ad4fff6a05b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2448c5fd34bf4ae3c49d499ebe70d9c02f823a8b8176f953a29ad4fff6a05b32", kill_on_drop: false }`
[INFO] [stdout] 2448c5fd34bf4ae3c49d499ebe70d9c02f823a8b8176f953a29ad4fff6a05b32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] d5b728efa3d45dfed41ef4a29fb06cc29eecfd8dc6acf4d51beda437a58840a4
[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" "d5b728efa3d45dfed41ef4a29fb06cc29eecfd8dc6acf4d51beda437a58840a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cnc-281895b513f8a227
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cnc
[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" "d5b728efa3d45dfed41ef4a29fb06cc29eecfd8dc6acf4d51beda437a58840a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5b728efa3d45dfed41ef4a29fb06cc29eecfd8dc6acf4d51beda437a58840a4", kill_on_drop: false }`
[INFO] [stdout] d5b728efa3d45dfed41ef4a29fb06cc29eecfd8dc6acf4d51beda437a58840a4