[INFO] crate shardio 0.5.4 is already in cache
[INFO] extracting crate shardio 0.5.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/shardio/0.5.4
[INFO] extracting crate shardio 0.5.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/shardio/0.5.4
[INFO] validating manifest of shardio-0.5.4 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 shardio-0.5.4 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 shardio-0.5.4
[INFO] finished frobbing shardio-0.5.4
[INFO] frobbed toml for shardio-0.5.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/shardio/0.5.4/Cargo.toml
[INFO] started frobbing shardio-0.5.4
[INFO] finished frobbing shardio-0.5.4
[INFO] frobbed toml for shardio-0.5.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/shardio/0.5.4/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 shardio-0.5.4 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/shardio/0.5.4:/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] 59573bd3ce694c7a2e5190d21da56d8a60a4ea5fd21cbee0d6afec3a4b21581d
[INFO] running `"docker" "start" "-a" "59573bd3ce694c7a2e5190d21da56d8a60a4ea5fd21cbee0d6afec3a4b21581d"`
[INFO] [stderr]    Compiling min-max-heap v1.2.2
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]    Compiling shardio v0.5.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.73s
[INFO] running `"docker" "inspect" "59573bd3ce694c7a2e5190d21da56d8a60a4ea5fd21cbee0d6afec3a4b21581d"`
[INFO] running `"docker" "rm" "-f" "59573bd3ce694c7a2e5190d21da56d8a60a4ea5fd21cbee0d6afec3a4b21581d"`
[INFO] [stdout] 59573bd3ce694c7a2e5190d21da56d8a60a4ea5fd21cbee0d6afec3a4b21581d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/shardio/0.5.4:/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] 4b79f0feee64c585281a63b910b42c2ea138cd84ab4af940932ab2400acd6cd7
[INFO] running `"docker" "start" "-a" "4b79f0feee64c585281a63b910b42c2ea138cd84ab4af940932ab2400acd6cd7"`
[INFO] [stderr]    Compiling is_sorted v0.1.1
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling shardio v0.5.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.85s
[INFO] running `"docker" "inspect" "4b79f0feee64c585281a63b910b42c2ea138cd84ab4af940932ab2400acd6cd7"`
[INFO] running `"docker" "rm" "-f" "4b79f0feee64c585281a63b910b42c2ea138cd84ab4af940932ab2400acd6cd7"`
[INFO] [stdout] 4b79f0feee64c585281a63b910b42c2ea138cd84ab4af940932ab2400acd6cd7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/shardio/0.5.4:/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] 1c95fff1b5381da74f80a14a1b3b3c47c1d518977a55be0e1f773076a31f336a
[INFO] running `"docker" "start" "-a" "1c95fff1b5381da74f80a14a1b3b3c47c1d518977a55be0e1f773076a31f336a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/shardio-d1318641aea80b7b
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test range::range_tests::test_range_cmp ... ok
[INFO] [stdout] test range::range_tests::test_range ... ok
[INFO] [stdout] test range::range_tests::test_shard_cmp ... ok
[INFO] [stdout] test helper::thread_tests::thread_iterate_test ... ok
[INFO] [stdout] test helper::thread_tests::thread_write_test ... ok
[INFO] [stdout] test shard_tests::test_io_error ... ok
[INFO] [stdout] test shard_tests::test_shard_one_key ... ok
[INFO] [stdout] test shard_tests::test_shard_round_trip ... ok
[INFO] [stdout] test shard_tests::multi_slice_correctness_quickcheck ... test shard_tests::multi_slice_correctness_quickcheck has been running for over 60 seconds
[INFO] [stdout] test shard_tests::test_shard_round_trip_sort_key ... test shard_tests::test_shard_round_trip_sort_key has been running for over 60 seconds
[INFO] [stdout] test shard_tests::test_shard_round_trip_sort_key ... ok
[INFO] [stdout] test shard_tests::multi_slice_correctness_quickcheck ... 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 shardio
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - SortKey (line 254) ... ok
[INFO] [stdout] test src/lib.rs -  (line 7) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 7) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0: failure::backtrace::internal::InternalBacktrace::new::h7bf2faff441ae3e8 (0x55f4dffea8f1)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stdout]    1: failure::backtrace::Backtrace::new::h43ceb467105fcaa0 (0x55f4dffea69e)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h94be2fe2d9ad30cb (0x55f4dffbe82c)
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<F>>::from::hcd5f4920663f89d5 (0x55f4dffaf55f)
[INFO] [stdout]    4: shardio::FileManager<K>::new::h111e5cd0f838f4ba (0x55f4dff4bc08)
[INFO] [stdout]    5: shardio::ShardWriter<T,S>::new::h6b8e65d62232e4d3 (0x55f4dff4f824)
[INFO] [stdout]    6: rust_out::main::h5572b6f0d93c29cf (0x55f4dff61cb5)
[INFO] [stdout]    7: std::rt::lang_start::{{closure}}::hed5ecbe250a3073f (0x55f4dffb4d66)
[INFO] [stdout]    8: std::rt::lang_start_internal::{{closure}}::h447d8812e3ee306d (0x55f4e0055993)
[INFO] [stdout]              at src/libstd/rt.rs:49
[INFO] [stdout]       std::panicking::try::do_call::h4a61cb372364c745
[INFO] [stdout]              at src/libstd/panicking.rs:296
[INFO] [stdout]    9: __rust_maybe_catch_panic (0x55f4e00583aa)
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   10: std::panicking::try::hdf71f938885bca42 (0x55f4e005649d)
[INFO] [stdout]              at src/libstd/panicking.rs:275
[INFO] [stdout]       std::panic::catch_unwind::h7e85dbf162b1611a
[INFO] [stdout]              at src/libstd/panic.rs:394
[INFO] [stdout]       std::rt::lang_start_internal::h1e06cc26b9fc25ea
[INFO] [stdout]              at src/libstd/rt.rs:48
[INFO] [stdout]   11: std::rt::lang_start::h746267fbf196fd46 (0x55f4dffb4d45)
[INFO] [stdout]   12: main (0x55f4dff673bb)
[INFO] [stdout]   13: __libc_start_main (0x7ff6181a82e1)
[INFO] [stdout]   14: _start (0x55f4dff46a9a)
[INFO] [stdout]   15: <unknown> (0x0)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 7)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "1c95fff1b5381da74f80a14a1b3b3c47c1d518977a55be0e1f773076a31f336a"`
[INFO] running `"docker" "rm" "-f" "1c95fff1b5381da74f80a14a1b3b3c47c1d518977a55be0e1f773076a31f336a"`
[INFO] [stdout] 1c95fff1b5381da74f80a14a1b3b3c47c1d518977a55be0e1f773076a31f336a