[INFO] fetching crate rug 1.5.2...
[INFO] extracting crate rug 1.5.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/rug/1.5.2
[INFO] extracting crate rug 1.5.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rug/1.5.2
[INFO] validating manifest of rug-1.5.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rug-1.5.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rug-1.5.2
[INFO] finished frobbing rug-1.5.2
[INFO] frobbed toml for rug-1.5.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rug/1.5.2/Cargo.toml
[INFO] started frobbing rug-1.5.2
[INFO] finished frobbing rug-1.5.2
[INFO] frobbed toml for rug-1.5.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rug/1.5.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rug-1.5.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rug/1.5.2:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ec4b1054f50b3dd047158ec0cee047a7d98f6dc6acc09eb3dab75dadacbfed04
[INFO] running `"docker" "start" "-a" "ec4b1054f50b3dd047158ec0cee047a7d98f6dc6acc09eb3dab75dadacbfed04"`
[INFO] [stderr]    Compiling rug v1.5.2 (/opt/crater/workdir)
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.14
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 09s
[INFO] running `"docker" "inspect" "ec4b1054f50b3dd047158ec0cee047a7d98f6dc6acc09eb3dab75dadacbfed04"`
[INFO] running `"docker" "rm" "-f" "ec4b1054f50b3dd047158ec0cee047a7d98f6dc6acc09eb3dab75dadacbfed04"`
[INFO] [stdout] ec4b1054f50b3dd047158ec0cee047a7d98f6dc6acc09eb3dab75dadacbfed04
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rug/1.5.2:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ada5abb7151d95d16a13bf23bb9fa10babed3ee84bd5c2f5123043366302772d
[INFO] running `"docker" "start" "-a" "ada5abb7151d95d16a13bf23bb9fa10babed3ee84bd5c2f5123043366302772d"`
[INFO] [stderr]    Compiling rug v1.5.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.22s
[INFO] running `"docker" "inspect" "ada5abb7151d95d16a13bf23bb9fa10babed3ee84bd5c2f5123043366302772d"`
[INFO] running `"docker" "rm" "-f" "ada5abb7151d95d16a13bf23bb9fa10babed3ee84bd5c2f5123043366302772d"`
[INFO] [stdout] ada5abb7151d95d16a13bf23bb9fa10babed3ee84bd5c2f5123043366302772d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rug/1.5.2:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 9db8f9ff7cfc7057f1529d3fcde100d6e53a9a46c8b249d5979915bfd2963188
[INFO] running `"docker" "start" "-a" "9db8f9ff7cfc7057f1529d3fcde100d6e53a9a46c8b249d5979915bfd2963188"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rug-2c025f7d61eadfdb
[INFO] [stdout] 
[INFO] [stdout] running 77 tests
[INFO] [stdout] test cast::tests::checked_to_larger_size ... ok
[INFO] [stdout] test cast::tests::checked_to_same_size ... ok
[INFO] [stdout] test cast::tests::checked_floats ... ok
[INFO] [stdout] test cast::tests::wrapping_to_same_size ... ok
[INFO] [stdout] test cast::tests::wrapping_to_larger_size ... ok
[INFO] [stdout] test cast::tests::wrapping_floats ... ok
[INFO] [stdout] test cast::tests::checked_to_smaller_size ... ok
[INFO] [stdout] test cast::tests::wrapping_to_smaller_size ... ok
[INFO] [stdout] test complex::arith::tests::check_neg ... ok
[INFO] [stdout] test complex::traits::tests::check_assign ... ok
[INFO] [stdout] test complex::tests::check_from_str ... ok
[INFO] [stdout] test complex::ord::tests::check_zero ... ok
[INFO] [stdout] test complex::small::tests::check_assign ... ok
[INFO] [stdout] test complex::tests::check_formatting ... ok
[INFO] [stdout] test complex::arith::tests::check_ref_op ... ok
[INFO] [stdout] test float::small::tests::check_assign ... ok
[INFO] [stdout] test float::ord::tests::check_zero ... ok
[INFO] [stdout] test float::arith::tests::check_ref_op ... ok
[INFO] [stdout] test float::tests::check_clamping ... ok
[INFO] [stdout] test float::tests::check_from_str ... ok
[INFO] [stdout] test float::tests::check_nan_random_bits ... ok
[INFO] [stdout] test float::traits::tests::check_assign ... ok
[INFO] [stdout] test float::traits::tests::check_fallible_conversions ... ok
[INFO] [stdout] test integer::arith::tests::check_addmul ... ok
[INFO] [stdout] test float::tests::check_assumptions ... ok
[INFO] [stdout] test float::cmp::tests::check_cmp_others ... ok
[INFO] [stdout] test integer::arith::tests::check_arith_u_s ... ok
[INFO] [stdout] test float::tests::check_formatting ... ok
[INFO] [stdout] test integer::arith::tests::check_ref_op ... ok
[INFO] [stdout] test integer::arith::tests::check_arith ... ok
[INFO] [stdout] test integer::cmp::tests::check_cmp_f ... ok
[INFO] [stdout] test integer::arith::tests::check_submul ... ok
[INFO] [stdout] test integer::cmp::tests::check_cmp_u_s ... ok
[INFO] [stdout] test integer::arith::tests::check_shift_u_s ... ok
[INFO] [stdout] test integer::division::tests::check_floor ... ok
[INFO] [stdout] test integer::division::tests::check_div_prim ... ok
[INFO] [stdout] test integer::division::tests::check_ceil ... ok
[INFO] [stdout] test integer::small::tests::check_assign ... ok
[INFO] [stdout] test integer::division::tests::check_rem_prim ... ok
[INFO] [stdout] test integer::tests::check_float_conversions ... ok
[INFO] [stdout] test integer::tests::check_from_digits_bool ... ok
[INFO] [stdout] test integer::tests::check_from_digits_resize ... ok
[INFO] [stdout] test integer::tests::check_from_digits_u128 ... ok
[INFO] [stdout] test integer::tests::check_from_digits_u16 ... ok
[INFO] [stdout] test integer::tests::check_from_digits_u8 ... ok
[INFO] [stdout] test integer::tests::check_from_str ... ok
[INFO] [stdout] test integer::tests::check_int_conversions ... ok
[INFO] [stdout] test integer::tests::check_option_conversion ... ok
[INFO] [stdout] test integer::tests::check_to_digits_bool ... ok
[INFO] [stdout] test integer::tests::check_to_digits_u128 ... ok
[INFO] [stdout] test integer::tests::check_to_digits_u16 ... ok
[INFO] [stdout] test integer::tests::check_to_digits_u8 ... ok
[INFO] [stdout] test integer::traits::tests::check_assign ... ok
[INFO] [stdout] test integer::traits::tests::check_fallible_conversions ... ok
[INFO] [stdout] test rand::tests::check_custom_clone ... ok
[INFO] [stdout] test integer::division::tests::check_trunc ... ok
[INFO] [stdout] test integer::tests::check_formatting ... ok
[INFO] [stdout] test rational::arith::tests::check_ref_op ... ok
[INFO] [stdout] test rational::cmp::tests::check_cmp_f ... ok
[INFO] [stdout] test rational::arith::tests::check_neg_pow ... ok
[INFO] [stdout] test integer::division::tests::check_euc ... ok
[INFO] [stdout] test rational::small::tests::check_assign ... ok
[INFO] [stdout] test rational::tests::check_formatting ... ok
[INFO] [stdout] test rational::cmp::tests::check_cmp_u_s ... ok
[INFO] [stdout] test rational::tests::check_fract_floor ... ok
[INFO] [stdout] test rational::tests::check_fract_ceil ... ok
[INFO] [stdout] test rational::tests::check_fract_round ... ok
[INFO] [stdout] test rational::tests::check_fract_trunc ... ok
[INFO] [stdout] test float::arith::tests::check_arith_others ... ok
[INFO] [stdout] test rational::traits::tests::check_assign ... ok
[INFO] [stdout] test rational::tests::check_from_str ... ok
[INFO] [stdout] test rational::traits::tests::check_fallible_conversions ... ok
[INFO] [stdout] test float::tests::check_clamping_panic ... ok
[INFO] [stdout] test rand::tests::check_custom_no_clone ... ok
[INFO] [stdout] test complex::arith::tests::check_arith_others ... ok
[INFO] [stdout] test rational::cmp::tests::check_cmp_tuple ... ok
[INFO] [stdout] test complex::cmp::tests::check_eq_others ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 77 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rug
[INFO] [stderr] error: process didn't exit successfully: `rustdoc --edition=2018 --test /opt/crater/workdir/src/lib.rs --crate-name rug -L dependency=/opt/crater/target/debug/deps -L native=/opt/crater/target/debug/build/gmp-mpfr-sys-d89a3e6436e97143/out/lib -L dependency=/opt/crater/target/debug/deps --cfg 'feature="float"' --cfg 'feature="integer"' --cfg maybe_uninit --cfg 'feature="rand"' --cfg try_from --cfg gmp_limb_bits_64 --cfg 'feature="default"' --cfg 'feature="rational"' --cfg 'feature="gmp-mpfr-sys"' --cfg 'feature="complex"' --extern bincode=/opt/crater/target/debug/deps/libbincode-9fdcccf2afeb0bda.rlib --extern byteorder=/opt/crater/target/debug/deps/libbyteorder-1ca0e27fd3a97256.rlib --extern gmp_mpfr_sys=/opt/crater/target/debug/deps/libgmp_mpfr_sys-0d1f0ac22629c41b.rlib --extern rug=/opt/crater/target/debug/deps/librug-91ff06eb4507ffde.rlib --extern serde_json=/opt/crater/target/debug/deps/libserde_json-905e72386a5f800f.rlib --extern serde_test=/opt/crater/target/debug/deps/libserde_test-acb701d5bdea3e5b.rlib` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "9db8f9ff7cfc7057f1529d3fcde100d6e53a9a46c8b249d5979915bfd2963188"`
[INFO] running `"docker" "rm" "-f" "9db8f9ff7cfc7057f1529d3fcde100d6e53a9a46c8b249d5979915bfd2963188"`
[INFO] [stdout] 9db8f9ff7cfc7057f1529d3fcde100d6e53a9a46c8b249d5979915bfd2963188