[INFO] fetching crate ibig 0.0.1...
[INFO] testing ibig-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ibig 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ibig 0.0.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibig 0.0.1
[INFO] finished tweaking crates.io crate ibig 0.0.1
[INFO] tweaked toml for crates.io crate ibig 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 83c66c41da5464b875f2176a4f0a032f958675aab4c7ca1ae8c0da3c027458f3
[INFO] running `Command { std: "docker" "start" "-a" "83c66c41da5464b875f2176a4f0a032f958675aab4c7ca1ae8c0da3c027458f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83c66c41da5464b875f2176a4f0a032f958675aab4c7ca1ae8c0da3c027458f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c66c41da5464b875f2176a4f0a032f958675aab4c7ca1ae8c0da3c027458f3", kill_on_drop: false }`
[INFO] [stdout] 83c66c41da5464b875f2176a4f0a032f958675aab4c7ca1ae8c0da3c027458f3
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86d60ae57ffbbe1009eacef20eb27de8eebb90b877925655e7bfa6a53e7d1801
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "86d60ae57ffbbe1009eacef20eb27de8eebb90b877925655e7bfa6a53e7d1801", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ibig v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `ensure_capacity`
[INFO] [stdout]   --> src/buffer.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub(crate) fn ensure_capacity(&mut self, num_words: usize) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DoubleWord`
[INFO] [stdout]   --> src/primitive.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) type DoubleWord = u128;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "86d60ae57ffbbe1009eacef20eb27de8eebb90b877925655e7bfa6a53e7d1801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d60ae57ffbbe1009eacef20eb27de8eebb90b877925655e7bfa6a53e7d1801", kill_on_drop: false }`
[INFO] [stdout] 86d60ae57ffbbe1009eacef20eb27de8eebb90b877925655e7bfa6a53e7d1801
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2f68334f13b08a348f692bfff75c635e33621ba8a1640c6371921874b0984172
[INFO] running `Command { std: "docker" "start" "-a" "2f68334f13b08a348f692bfff75c635e33621ba8a1640c6371921874b0984172", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `ensure_capacity`
[INFO] [stdout]   --> src/buffer.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub(crate) fn ensure_capacity(&mut self, num_words: usize) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ibig v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias is never used: `DoubleWord`
[INFO] [stdout]   --> src/primitive.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) type DoubleWord = u128;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.86s
[INFO] running `Command { std: "docker" "inspect" "2f68334f13b08a348f692bfff75c635e33621ba8a1640c6371921874b0984172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f68334f13b08a348f692bfff75c635e33621ba8a1640c6371921874b0984172", kill_on_drop: false }`
[INFO] [stdout] 2f68334f13b08a348f692bfff75c635e33621ba8a1640c6371921874b0984172
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] daa39a8f314cca629f2d957fac7af3d27f8e2a3ea4787a105aa888f2b85cde7e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "daa39a8f314cca629f2d957fac7af3d27f8e2a3ea4787a105aa888f2b85cde7e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: associated function is never used: `ensure_capacity`
[INFO] [stdout] running 25 tests
[INFO] [stderr]   --> src/buffer.rs:28:19
[INFO] [stdout] test buffer::tests::test_default_capacity ... ok
[INFO] [stderr]    |
[INFO] [stdout] test buffer::tests::test_ensure_capacity ... ok
[INFO] [stderr] 28 |     pub(crate) fn ensure_capacity(&mut self, num_words: usize) {
[INFO] [stdout] test buffer::tests::test_clone_from ... ok
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] test buffer::tests::test_max_compact_capacity ... ok
[INFO] [stderr]    |
[INFO] [stdout] test convert::tests::test_word_from_le_bytes_partial ... ok
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] test primitive::tests::test_bits_bytes ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `DoubleWord`
[INFO] [stderr]   --> src/primitive.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub(crate) type DoubleWord = u128;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ibig-6dd7689d6c9150e4
[INFO] [stdout] test buffer::tests::test_clone ... ok
[INFO] [stdout] test primitive::tests::test_word_from_le_bytes_partial ... ok
[INFO] [stdout] test buffer::tests::test_allocate ... ok
[INFO] [stdout] test primitive::tests::try_from_sign_magnitude ... ok
[INFO] [stdout] test radix::tests::test_digit_from_ascii ... ok
[INFO] [stdout] test buffer::tests::test_shrink ... ok
[INFO] [stdout] test primitive::tests::test_word_from_be_bytes_partial ... ok
[INFO] [stdout] test convert::tests::test_word_from_be_bytes_partial ... ok
[INFO] [stdout] test buffer::tests::test_resizing_clone_from ... ok
[INFO] [stdout] test ubig::tests::test_clone_from ... ok
[INFO] [stdout] test buffer::tests::test_operations ... ok
[INFO] [stdout] test radix::tests::test_radix_in_word_table ... ok
[INFO] [stdout] test ubig::tests::test_buffer_to_ubig ... ok
[INFO] [stdout] test ubig::tests::test_clone ... ok
[INFO] [stdout] test radix::tests::test_digit_to_ascii ... ok
[INFO] [stdout] test primitive::tests::test_to_sign_magnitude ... ok
[INFO] [stdout] test primitive::tests::test_double_word ... ok
[INFO] [stdout] test buffer::tests::test_allocate_too_large ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arithmetic-9b094dde53fc2f61
[INFO] [stdout] test buffer::tests::test_push_failed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bits-ea1895f97b669187
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_neg ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/convert-6028f2a78189aba2
[INFO] [stdout] test test_ilog2 ... ok
[INFO] [stdout] test test_trailing_zeros ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test test_ibig_to_signed ... ok
[INFO] [stdout] test test_ibig_to_ubig ... ok
[INFO] [stdout] test test_ubig_from_bool ... ok
[INFO] [stdout] test test_ubig_to_signed ... ok
[INFO] [stdout] test test_ubig_to_unsigned ... ok
[INFO] [stdout] test test_ubig_from_signed ... ok
[INFO] [stdout] test test_from_to_le_bytes ... ok
[INFO] [stdout] test test_ubig_from_unsigned ... ok
[INFO] [stdout] test test_ibig_from_signed ... ok
[INFO] [stdout] test test_ibig_to_unsigned ... ok
[INFO] [stdout] test test_ubig_to_ibig ... ok
[INFO] [stdout] test test_ibig_from_unsigned ... ok
[INFO] [stdout] test test_from_to_be_bytes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/radix-73326427c215e667
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test_macros ... ok
[INFO] [stdout] test test_from_str_radix_with_radix_prefix ... ok
[INFO] [stdout] test test_ibig_from_str_radix ... ok
[INFO] [stdout] test test_ibig_in_radix ... ok
[INFO] [stdout] test test_ibig_format ... ok
[INFO] [stdout] test test_ibig_to_str_radix ... ok
[INFO] [stdout] test test_ubig_format ... ok
[INFO] [stdout] test test_ubig_from_str_radix ... ok
[INFO] [stdout] test test_ubig_in_radix ... ok
[INFO] [stdout] test test_ubig_to_str_radix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ibig
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test src/buffer.rs - buffer::Buffer::resizing_clone_from (line 72) ... ignored
[INFO] [stdout] test src/convert.rs - convert::UBig::from_be_bytes (line 54) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::IBig::in_radix (line 556) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::UBig::to_str_radix (line 419) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::IBig::to_str_radix (line 592) ... ok
[INFO] [stdout] test src/convert.rs - convert::UBig::to_be_bytes (line 116) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::InRadix (line 37) ... ok
[INFO] [stdout] test src/convert.rs - convert::UBig::to_le_bytes (line 85) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::IBig::to_str_radix_uppercase (line 623) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::UBig::to_str_radix_uppercase (line 450) ... ok
[INFO] [stdout] test src/bits.rs - bits::UBig::ilog2 (line 41) ... ok
[INFO] [stdout] test src/bits.rs - bits::IBig::trailing_zeros (line 81) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::UBig::in_radix (line 383) ... ok
[INFO] [stdout] test src/bits.rs - bits::UBig::trailing_zeros (line 16) ... ok
[INFO] [stdout] test src/convert.rs - convert::UBig::from_le_bytes (line 23) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/ibig.rs - ibig::IBig::is_negative (line 53) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/macros.rs - ibig (line 62) ... ok
[INFO] [stdout] test src/macros.rs - ubig (line 14) ... ok
[INFO] [stdout] test src/ibig.rs - ibig::IBig (line 14) ... ok
[INFO] [stdout] test src/macros.rs - ibig (line 71) ... ok
[INFO] [stdout] test src/ibig.rs - ibig::IBig::is_positive (line 66) ... ok
[INFO] [stdout] test src/macros.rs - ubig (line 5) ... ok
[INFO] [stdout] test src/macros.rs - ibig (line 81) ... ok
[INFO] [stdout] test src/parse.rs - parse::UBig::from_str_radix (line 40) ... ok
[INFO] [stdout] test src/parse.rs - parse::IBig::from_str_radix (line 180) ... ok
[INFO] [stdout] test src/parse.rs - parse::IBig::from_str_with_radix_prefix (line 214) ... ok
[INFO] [stdout] test src/macros.rs - ubig (line 24) ... ok
[INFO] [stdout] test src/parse.rs - parse::UBig::from_str_with_radix_prefix (line 64) ... ok
[INFO] [stdout] test src/ubig.rs - ubig::UBig (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "daa39a8f314cca629f2d957fac7af3d27f8e2a3ea4787a105aa888f2b85cde7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daa39a8f314cca629f2d957fac7af3d27f8e2a3ea4787a105aa888f2b85cde7e", kill_on_drop: false }`
[INFO] [stdout] daa39a8f314cca629f2d957fac7af3d27f8e2a3ea4787a105aa888f2b85cde7e