[INFO] crate isolate 0.1.2 is already in cache
[INFO] testing isolate-0.1.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate isolate 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate isolate 0.1.2 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 isolate 0.1.2
[INFO] finished tweaking crates.io crate isolate 0.1.2
[INFO] tweaked toml for crates.io crate isolate 0.1.2 written to /workspace/builds/worker-8/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-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" "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] 7cc6af419613929ad41d835d8e2916868a40e5bfce4d48be70660d54e82ee763
[INFO] running `"docker" "start" "-a" "7cc6af419613929ad41d835d8e2916868a40e5bfce4d48be70660d54e82ee763"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling unshare v0.2.0
[INFO] [stderr]    Compiling isolate v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `config`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     config: Configuration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.86s
[INFO] running `"docker" "inspect" "7cc6af419613929ad41d835d8e2916868a40e5bfce4d48be70660d54e82ee763"`
[INFO] running `"docker" "rm" "-f" "7cc6af419613929ad41d835d8e2916868a40e5bfce4d48be70660d54e82ee763"`
[INFO] [stdout] 7cc6af419613929ad41d835d8e2916868a40e5bfce4d48be70660d54e82ee763
[INFO] running `"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" "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] c3ef37ed7f9a48ea450add73374f983a7b004e20e07f9fbfd6908d880bf6a052
[INFO] running `"docker" "start" "-a" "c3ef37ed7f9a48ea450add73374f983a7b004e20e07f9fbfd6908d880bf6a052"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling isolate v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `config`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     config: Configuration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "c3ef37ed7f9a48ea450add73374f983a7b004e20e07f9fbfd6908d880bf6a052"`
[INFO] running `"docker" "rm" "-f" "c3ef37ed7f9a48ea450add73374f983a7b004e20e07f9fbfd6908d880bf6a052"`
[INFO] [stdout] c3ef37ed7f9a48ea450add73374f983a7b004e20e07f9fbfd6908d880bf6a052
[INFO] running `"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" "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] 6021becea761941970572da3fe435b99886b8f394ca234e86aa9aa763978fd67
[INFO] running `"docker" "start" "-a" "6021becea761941970572da3fe435b99886b8f394ca234e86aa9aa763978fd67"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: field is never read: `config`
[INFO] [stderr]    --> src/main.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     config: Configuration,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/isolate-41d56a7ee472894b
[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" "6021becea761941970572da3fe435b99886b8f394ca234e86aa9aa763978fd67"`
[INFO] running `"docker" "rm" "-f" "6021becea761941970572da3fe435b99886b8f394ca234e86aa9aa763978fd67"`
[INFO] [stdout] 6021becea761941970572da3fe435b99886b8f394ca234e86aa9aa763978fd67