[INFO] fetching crate compression 0.1.5...
[INFO] testing compression-0.1.5 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate compression 0.1.5 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate compression 0.1.5 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compression 0.1.5
[INFO] finished tweaking crates.io crate compression 0.1.5
[INFO] tweaked toml for crates.io crate compression 0.1.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.5)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v5.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db3e51d9baa94d74d17a48517882e0acaf21d80d3f9468ba7e669afd94718f79
[INFO] running `Command { std: "docker" "start" "-a" "db3e51d9baa94d74d17a48517882e0acaf21d80d3f9468ba7e669afd94718f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db3e51d9baa94d74d17a48517882e0acaf21d80d3f9468ba7e669afd94718f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3e51d9baa94d74d17a48517882e0acaf21d80d3f9468ba7e669afd94718f79", kill_on_drop: false }`
[INFO] [stdout] db3e51d9baa94d74d17a48517882e0acaf21d80d3f9468ba7e669afd94718f79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49153419761eebb74261e40f38db0d89d8b824399550b97d5d3ae157afcfdaed
[INFO] running `Command { std: "docker" "start" "-a" "49153419761eebb74261e40f38db0d89d8b824399550b97d5d3ae157afcfdaed", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling compression v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/crc32.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         { make_table_reverse(0xEDB8_8320) };
[INFO] [stdout]    |         ^^                               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 17 -         { make_table_reverse(0xEDB8_8320) };
[INFO] [stdout] 17 +         make_table_reverse(0xEDB8_8320);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/crc32.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         { make_table_normal(0x04C1_1DB7) };
[INFO] [stdout]    |         ^^                              ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 30 -         { make_table_normal(0x04C1_1DB7) };
[INFO] [stdout] 30 +         make_table_normal(0x04C1_1DB7);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BitWriteExt` is never used
[INFO] [stdout]   --> src/bitio/writer.rs:21:18
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub(crate) trait BitWriteExt<T, I>
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BitIterator` is never constructed
[INFO] [stdout]   --> src/bitio/writer.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub(crate) struct BitIterator<T, D, I, W>
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bitio/writer.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | / impl<T, D, I, W> BitIterator<T, D, I, W>
[INFO] [stdout] 86 | | where
[INFO] [stdout] 87 | |     T: Copy
[INFO] [stdout] 88 | |         + BitOr<Output = T>
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | |     I: Iterator<Item = SmallBitVec<T>>,
[INFO] [stdout] 96 | |     W: BorrowMut<BitWriter<D>>,
[INFO] [stdout]    | |_______________________________- associated function in this implementation
[INFO] [stdout] 97 |   {
[INFO] [stdout] 98 |       fn new(inner: I, writer: W, action: Action) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "49153419761eebb74261e40f38db0d89d8b824399550b97d5d3ae157afcfdaed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49153419761eebb74261e40f38db0d89d8b824399550b97d5d3ae157afcfdaed", kill_on_drop: false }`
[INFO] [stdout] 49153419761eebb74261e40f38db0d89d8b824399550b97d5d3ae157afcfdaed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b584005fa33759f5a9bd4bec2e9fc220e3a6436ebaf905d7d76eee595b349ba
[INFO] running `Command { std: "docker" "start" "-a" "9b584005fa33759f5a9bd4bec2e9fc220e3a6436ebaf905d7d76eee595b349ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/crc32.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         { make_table_reverse(0xEDB8_8320) };
[INFO] [stdout]    |         ^^                               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 17 -         { make_table_reverse(0xEDB8_8320) };
[INFO] [stdout] 17 +         make_table_reverse(0xEDB8_8320);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/crc32.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         { make_table_normal(0x04C1_1DB7) };
[INFO] [stdout]    |         ^^                              ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 30 -         { make_table_normal(0x04C1_1DB7) };
[INFO] [stdout] 30 +         make_table_normal(0x04C1_1DB7);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BitWriteExt` is never used
[INFO] [stdout]   --> src/bitio/writer.rs:21:18
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub(crate) trait BitWriteExt<T, I>
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BitIterator` is never constructed
[INFO] [stdout]   --> src/bitio/writer.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub(crate) struct BitIterator<T, D, I, W>
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bitio/writer.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | / impl<T, D, I, W> BitIterator<T, D, I, W>
[INFO] [stdout] 86 | | where
[INFO] [stdout] 87 | |     T: Copy
[INFO] [stdout] 88 | |         + BitOr<Output = T>
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | |     I: Iterator<Item = SmallBitVec<T>>,
[INFO] [stdout] 96 | |     W: BorrowMut<BitWriter<D>>,
[INFO] [stdout]    | |_______________________________- associated function in this implementation
[INFO] [stdout] 97 |   {
[INFO] [stdout] 98 |       fn new(inner: I, writer: W, action: Action) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling simple_logger v5.0.0
[INFO] [stderr]    Compiling compression v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/crc32.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         { make_table_reverse(0xEDB8_8320) };
[INFO] [stdout]    |         ^^                               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 17 -         { make_table_reverse(0xEDB8_8320) };
[INFO] [stdout] 17 +         make_table_reverse(0xEDB8_8320);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/crc32.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         { make_table_normal(0x04C1_1DB7) };
[INFO] [stdout]    |         ^^                              ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 30 -         { make_table_normal(0x04C1_1DB7) };
[INFO] [stdout] 30 +         make_table_normal(0x04C1_1DB7);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.94s
[INFO] running `Command { std: "docker" "inspect" "9b584005fa33759f5a9bd4bec2e9fc220e3a6436ebaf905d7d76eee595b349ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b584005fa33759f5a9bd4bec2e9fc220e3a6436ebaf905d7d76eee595b349ba", kill_on_drop: false }`
[INFO] [stdout] 9b584005fa33759f5a9bd4bec2e9fc220e3a6436ebaf905d7d76eee595b349ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ff1e7a775619af02f2809e06caf328cecd13e9ac774e8943b60d1b032edff11f
[INFO] running `Command { std: "docker" "start" "-a" "ff1e7a775619af02f2809e06caf328cecd13e9ac774e8943b60d1b032edff11f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/crc32.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         { make_table_reverse(0xEDB8_8320) };
[INFO] [stderr]    |         ^^                               ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] 17 -         { make_table_reverse(0xEDB8_8320) };
[INFO] [stderr] 17 +         make_table_reverse(0xEDB8_8320);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/crc32.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         { make_table_normal(0x04C1_1DB7) };
[INFO] [stderr]    |         ^^                              ^^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] 30 -         { make_table_normal(0x04C1_1DB7) };
[INFO] [stderr] 30 +         make_table_normal(0x04C1_1DB7);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: trait `BitWriteExt` is never used
[INFO] [stderr]   --> src/bitio/writer.rs:21:18
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub(crate) trait BitWriteExt<T, I>
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BitIterator` is never constructed
[INFO] [stderr]   --> src/bitio/writer.rs:63:19
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub(crate) struct BitIterator<T, D, I, W>
[INFO] [stderr]    |                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/bitio/writer.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 85 | / impl<T, D, I, W> BitIterator<T, D, I, W>
[INFO] [stderr] 86 | | where
[INFO] [stderr] 87 | |     T: Copy
[INFO] [stderr] 88 | |         + BitOr<Output = T>
[INFO] [stderr] ...  |
[INFO] [stderr] 95 | |     I: Iterator<Item = SmallBitVec<T>>,
[INFO] [stderr] 96 | |     W: BorrowMut<BitWriter<D>>,
[INFO] [stderr]    | |_______________________________- associated function in this implementation
[INFO] [stderr] 97 |   {
[INFO] [stderr] 98 |       fn new(inner: I, writer: W, action: Action) -> Self {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `compression` (lib) generated 5 warnings (run `cargo fix --lib -p compression` to apply 2 suggestions)
[INFO] [stderr] warning: `compression` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/compression-efc665f7c7224453)
[INFO] [stdout] 
[INFO] [stdout] running 124 tests
[INFO] [stderr] thread 'bitio::reader::tests::leftbitreader_peek_big' panicked at library/core/src/panicking.rs:219:5:
[INFO] [stderr] unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5614ec094565 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]    1:     0x5614ec094565 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x5614ec094565 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]    3:     0x5614ec094565 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x5614ec0bb57b - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stderr]    5:     0x5614ec0bb57b - core::fmt::write::h8bcd80919a02be29
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stderr]    6:     0x5614ec091e4f - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stderr]    7:     0x5614ec09433e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x5614ec09433e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x5614ec095d69 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stderr]   10:     0x5614ec095aad - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stderr]   11:     0x5614ebffbe5a - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::he5eacdef44c8728f
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stderr]   12:     0x5614ebffbe5a - test::test_main::{{closure}}::h0ec9aed229e79095
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:137:21
[INFO] [stderr]   13:     0x5614ec09636b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcbd0d80e1ad4e4f9
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stderr]   14:     0x5614ec09636b - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:799:13
[INFO] [stderr]   15:     0x5614ec0960ab - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:656:13
[INFO] [stderr]   16:     0x5614ec094a29 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]   17:     0x5614ec095e17 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stderr]   18:     0x5614ebec1d10 - core::panicking::panic_nounwind_fmt::runtime::h4b9f1774825d29a1
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:110:18
[INFO] [stderr]   19:     0x5614ebec1d10 - core::panicking::panic_nounwind_fmt::h7f70629ab29f76f1
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:120:5
[INFO] [stderr]   20:     0x5614ebec1da2 - core::panicking::panic_nounwind::hde0018e2d22904b7
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:219:5
[INFO] [stderr]   21:     0x5614ebf387d8 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::hfb4439a38f1a1af3
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ub_checks.rs:68:21
[INFO] [stderr]   22:     0x5614ebf38783 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::hc2e9fae80e4a8c12
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ub_checks.rs:75:17
[INFO] [stderr]   23:     0x5614ebfba7f8 - core::slice::<impl [T]>::get_unchecked::h64c7c0331a21379d
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/slice/mod.rs:686:20
[INFO] [stderr]   24:     0x5614ebf7ea28 - compression::cbuffer::CircularBuffer<T>::append::he2ca6c4e0207490d
[INFO] [stderr]                                at /opt/rustwide/workdir/src/cbuffer.rs:39:25
[INFO] [stderr]   25:     0x5614ebf27602 - <compression::bitio::reader::BitReader<D> as compression::bitio::reader::BitRead>::peek_bits::hb472615dd0827494
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bitio/reader.rs:94:17
[INFO] [stderr]   26:     0x5614ebf2d15d - <compression::bitio::reader::BitReader<D> as compression::bitio::reader::BitRead>::read_bits::hb0b01efdc26ee752
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bitio/reader.rs:173:17
[INFO] [stderr]   27:     0x5614ebf68296 - compression::bitio::reader::tests::leftbitreader_peek_big::h2bd1dcfd82453a76
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bitio/reader.rs:408:13
[INFO] [stderr]   28:     0x5614ebf67b97 - compression::bitio::reader::tests::leftbitreader_peek_big::{{closure}}::h4b575a1cc9d8e5ce
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bitio/reader.rs:376:32
[INFO] [stderr]   29:     0x5614ebfae696 - core::ops::function::FnOnce::call_once::h9ce162f0dbfe3f46
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   30:     0x5614ec00083b - core::ops::function::FnOnce::call_once::h2e43a8f6f3d94b99
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   31:     0x5614ec00083b - test::__rust_begin_short_backtrace::h214c9f2d2d3fee90
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:625:18
[INFO] [stderr]   32:     0x5614ebffff41 - test::run_test_in_process::{{closure}}::h510b7ba7990692a5
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:60
[INFO] [stderr]   33:     0x5614ebffff41 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4157186197a93871
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   34:     0x5614ebffff41 - std::panicking::try::do_call::h1bf2463bccd4b28c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stderr]   35:     0x5614ebffff41 - std::panicking::try::hd6d4808c9fab4fa5
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stderr]   36:     0x5614ebffff41 - std::panic::catch_unwind::hd5641d97d123f9f2
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stderr]   37:     0x5614ebffff41 - test::run_test_in_process::hc273b71c8b878a4c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:27
[INFO] [stderr]   38:     0x5614ebffff41 - test::run_test::{{closure}}::h6838df834eb8467e
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:569:43
[INFO] [stderr]   39:     0x5614ebfc8904 - test::run_test::{{closure}}::h608b98ecff5665fb
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:599:41
[INFO] [stderr]   40:     0x5614ebfc8904 - std::sys_common::backtrace::__rust_begin_short_backtrace::hdc4182b97d1042e9
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stderr]   41:     0x5614ebfcd332 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h571773fd21d674c8
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:542:17
[INFO] [stderr]   42:     0x5614ebfcd332 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdcd384cf2fa70ba3
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   43:     0x5614ebfcd332 - std::panicking::try::do_call::h4f1a44bd81423be1
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stderr]   44:     0x5614ebfcd332 - std::panicking::try::h5e02afcb81dcd361
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stderr]   45:     0x5614ebfcd332 - std::panic::catch_unwind::h022f75775bfd8c45
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stderr]   46:     0x5614ebfcd332 - std::thread::Builder::spawn_unchecked_::{{closure}}::hf5a62e9e4e6df1f8
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:541:30
[INFO] [stderr]   47:     0x5614ebfcd332 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6d56360aeb9509a7
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   48:     0x5614ec09a65b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7a343dc551c06baa
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]   49:     0x5614ec09a65b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h30b8111cbaa644f3
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]   50:     0x5614ec09a65b - std::sys::pal::unix::thread::Thread::new::thread_start::h7404e134e61e7a11
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stderr]   51:     0x7efcb4190ac3 - <unknown>
[INFO] [stderr]   52:     0x7efcb4221a04 - __clone
[INFO] [stderr]   53:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/compression-efc665f7c7224453` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "ff1e7a775619af02f2809e06caf328cecd13e9ac774e8943b60d1b032edff11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff1e7a775619af02f2809e06caf328cecd13e9ac774e8943b60d1b032edff11f", kill_on_drop: false }`
[INFO] [stdout] ff1e7a775619af02f2809e06caf328cecd13e9ac774e8943b60d1b032edff11f
