[INFO] crate rotor-capnp 0.1.0 is already in cache
[INFO] extracting crate rotor-capnp 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rotor-capnp/0.1.0
[INFO] extracting crate rotor-capnp 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rotor-capnp/0.1.0
[INFO] validating manifest of rotor-capnp-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rotor-capnp-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rotor-capnp-0.1.0
[INFO] finished frobbing rotor-capnp-0.1.0
[INFO] frobbed toml for rotor-capnp-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rotor-capnp/0.1.0/Cargo.toml
[INFO] started frobbing rotor-capnp-0.1.0
[INFO] finished frobbing rotor-capnp-0.1.0
[INFO] frobbed toml for rotor-capnp-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rotor-capnp/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rotor-capnp-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rotor-capnp/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 64f9a1cdac0e32c20ea1ca3307538b0b80ee49410aaafe1c654292230fc8a228
[INFO] running `"docker" "start" "-a" "64f9a1cdac0e32c20ea1ca3307538b0b80ee49410aaafe1c654292230fc8a228"`
[INFO] [stderr]    Compiling capnp v0.6.2
[INFO] [stderr]    Compiling rotor-stream v0.5.1
[INFO] [stderr] warning[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/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]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling rotor-capnp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `"docker" "inspect" "64f9a1cdac0e32c20ea1ca3307538b0b80ee49410aaafe1c654292230fc8a228"`
[INFO] running `"docker" "rm" "-f" "64f9a1cdac0e32c20ea1ca3307538b0b80ee49410aaafe1c654292230fc8a228"`
[INFO] [stdout] 64f9a1cdac0e32c20ea1ca3307538b0b80ee49410aaafe1c654292230fc8a228
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rotor-capnp/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f0be9e2104096a6c2901f6fb1ca31471b27a6a5f82dde96c9aa56c3c4a76454a
[INFO] running `"docker" "start" "-a" "f0be9e2104096a6c2901f6fb1ca31471b27a6a5f82dde96c9aa56c3c4a76454a"`
[INFO] [stderr]    Compiling rotor-capnp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "f0be9e2104096a6c2901f6fb1ca31471b27a6a5f82dde96c9aa56c3c4a76454a"`
[INFO] running `"docker" "rm" "-f" "f0be9e2104096a6c2901f6fb1ca31471b27a6a5f82dde96c9aa56c3c4a76454a"`
[INFO] [stdout] f0be9e2104096a6c2901f6fb1ca31471b27a6a5f82dde96c9aa56c3c4a76454a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rotor-capnp/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9e80fff2694e075f67bfa684d27fc141a8361dcb95e369b13a8a9fd306ac8936
[INFO] running `"docker" "start" "-a" "9e80fff2694e075f67bfa684d27fc141a8361dcb95e369b13a8a9fd306ac8936"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rotor_capnp-00d8eaeac36d0a62
[INFO] [stderr]    Doc-tests rotor-capnp
[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] [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" "9e80fff2694e075f67bfa684d27fc141a8361dcb95e369b13a8a9fd306ac8936"`
[INFO] running `"docker" "rm" "-f" "9e80fff2694e075f67bfa684d27fc141a8361dcb95e369b13a8a9fd306ac8936"`
[INFO] [stdout] 9e80fff2694e075f67bfa684d27fc141a8361dcb95e369b13a8a9fd306ac8936