[INFO] crate capnp-nonblock 0.4.0 is already in cache
[INFO] testing capnp-nonblock-0.4.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate capnp-nonblock 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate capnp-nonblock 0.4.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate capnp-nonblock 0.4.0
[INFO] finished tweaking crates.io crate capnp-nonblock 0.4.0
[INFO] tweaked toml for crates.io crate capnp-nonblock 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 1937f4eeaf62cf200a47b46cc6b6643722b9b5ea492cb5146fad1167a28625a2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "1937f4eeaf62cf200a47b46cc6b6643722b9b5ea492cb5146fad1167a28625a2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.2.27
[INFO] [stderr]    Compiling capnp v0.6.2
[INFO] [stderr] error[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/capnp-0.6.2/src/private/layout.rs:639:47
[INFO] [stderr]     |
[INFO] [stderr] 639 |         let ptr = try!(follow_fars(&mut reff, (*reff).target(), &mut segment));
[INFO] [stderr]     |                        ----------- ---------  ^^^^^^^ immutable borrow occurs here
[INFO] [stderr]     |                        |           |
[INFO] [stderr]     |                        |           mutable borrow occurs here
[INFO] [stderr]     |                        mutable borrow later used by call
[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 `capnp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1937f4eeaf62cf200a47b46cc6b6643722b9b5ea492cb5146fad1167a28625a2"`
[INFO] running `"docker" "rm" "-f" "1937f4eeaf62cf200a47b46cc6b6643722b9b5ea492cb5146fad1167a28625a2"`
[INFO] [stdout] 1937f4eeaf62cf200a47b46cc6b6643722b9b5ea492cb5146fad1167a28625a2