[INFO] updating cached repository https://github.com/yggie/mach
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b1c15026e0f31117d0d54ee6eeaeadd3e94a3d92
[INFO] checking yggie/mach against nightly-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyggie%2Fmach" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yggie/mach on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yggie/mach
[INFO] finished tweaking git repo https://github.com/yggie/mach
[INFO] tweaked toml for git repo https://github.com/yggie/mach written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/yggie/mach already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-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" "+nightly-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a99ab313f0ef382fd80939aac9c99b42ded8f95d3640970a7c5b43ca82aad19
[INFO] running `"docker" "start" "-a" "6a99ab313f0ef382fd80939aac9c99b42ded8f95d3640970a7c5b43ca82aad19"`
[INFO] [stderr]     Checking mach v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]     Checking x11-dl v2.12.0
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr] error[E0502]: cannot borrow `*target` as immutable because it is also borrowed as mutable
[INFO] [stderr]   --> src/dynamics/integrators/semi_implicit_euler.rs:21:38
[INFO] [stderr]    |
[INFO] [stderr] 21 |         *target.translation_mut() += target.velocity() * t;
[INFO] [stderr]    |         -----------------------------^^^^^^---------------
[INFO] [stderr]    |         ||                           |
[INFO] [stderr]    |         ||                           immutable borrow occurs here
[INFO] [stderr]    |         |mutable borrow occurs here
[INFO] [stderr]    |         mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: could not compile `mach`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6a99ab313f0ef382fd80939aac9c99b42ded8f95d3640970a7c5b43ca82aad19"`
[INFO] running `"docker" "rm" "-f" "6a99ab313f0ef382fd80939aac9c99b42ded8f95d3640970a7c5b43ca82aad19"`
[INFO] [stdout] 6a99ab313f0ef382fd80939aac9c99b42ded8f95d3640970a7c5b43ca82aad19