[INFO] crate xch-ceb 0.5.2 is already in cache
[INFO] extracting crate xch-ceb 0.5.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/xch-ceb/0.5.2
[INFO] extracting crate xch-ceb 0.5.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/xch-ceb/0.5.2
[INFO] validating manifest of xch-ceb-0.5.2 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 xch-ceb-0.5.2 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 xch-ceb-0.5.2
[INFO] finished frobbing xch-ceb-0.5.2
[INFO] frobbed toml for xch-ceb-0.5.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/xch-ceb/0.5.2/Cargo.toml
[INFO] started frobbing xch-ceb-0.5.2
[INFO] finished frobbing xch-ceb-0.5.2
[INFO] frobbed toml for xch-ceb-0.5.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/xch-ceb/0.5.2/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 xch-ceb-0.5.2 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/xch-ceb/0.5.2:/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] 419cd65d4e4bf47d437bdba1e7cac3758f6976b3b0b0abb08e58931e282c6d70
[INFO] running `"docker" "start" "-a" "419cd65d4e4bf47d437bdba1e7cac3758f6976b3b0b0abb08e58931e282c6d70"`
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling id_tree v1.5.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling nalgebra v0.16.13
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.16.13/src/base/cg.rs:291:44
[INFO] [stderr]     |
[INFO] [stderr] 291 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[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]     = 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 lib_xch v0.13.0
[INFO] [stderr]    Compiling xch-ceb v0.5.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.72s
[INFO] running `"docker" "inspect" "419cd65d4e4bf47d437bdba1e7cac3758f6976b3b0b0abb08e58931e282c6d70"`
[INFO] running `"docker" "rm" "-f" "419cd65d4e4bf47d437bdba1e7cac3758f6976b3b0b0abb08e58931e282c6d70"`
[INFO] [stdout] 419cd65d4e4bf47d437bdba1e7cac3758f6976b3b0b0abb08e58931e282c6d70
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/xch-ceb/0.5.2:/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] bfe5eea0902df07faf074255a49d103cf7e3155ba8078a10b98b3e95d4de19fd
[INFO] running `"docker" "start" "-a" "bfe5eea0902df07faf074255a49d103cf7e3155ba8078a10b98b3e95d4de19fd"`
[INFO] [stderr]    Compiling xch-ceb v0.5.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "bfe5eea0902df07faf074255a49d103cf7e3155ba8078a10b98b3e95d4de19fd"`
[INFO] running `"docker" "rm" "-f" "bfe5eea0902df07faf074255a49d103cf7e3155ba8078a10b98b3e95d4de19fd"`
[INFO] [stdout] bfe5eea0902df07faf074255a49d103cf7e3155ba8078a10b98b3e95d4de19fd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/xch-ceb/0.5.2:/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] 8981abd831d4e5177799e09a2bae62d8073b5aac6b95bbe5bd4bfca6680189d8
[INFO] running `"docker" "start" "-a" "8981abd831d4e5177799e09a2bae62d8073b5aac6b95bbe5bd4bfca6680189d8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xch_ceb-539b5550f3574fc6
[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" "8981abd831d4e5177799e09a2bae62d8073b5aac6b95bbe5bd4bfca6680189d8"`
[INFO] running `"docker" "rm" "-f" "8981abd831d4e5177799e09a2bae62d8073b5aac6b95bbe5bd4bfca6680189d8"`
[INFO] [stdout] 8981abd831d4e5177799e09a2bae62d8073b5aac6b95bbe5bd4bfca6680189d8