Valgrind finds problems in tests in release mode

[purpleposeidon]

$ valgrind target/release/deps/test-7db46c3c67811ea2 --test-threads 1 
==30187== Memcheck, a memory error detector
==30187== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==30187== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==30187== Command: target/release/deps/test-7db46c3c67811ea2 --test-threads 1
==30187== 

running 11 tests
test issue_14 ... ok
test issue_16 ... ok
test issue_17 ... ok
test issue_26 ... ok
test issue_30_realworld ... ==30187== Thread 2 issue_30_realwor:
==30187== Conditional jump or move depends on uninitialised value(s)
==30187==    at 0x1587A3: inflate::DynHuffman16::new (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x15DFD6: inflate::InflateStream::next_state (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x165D32: inflate::InflateStream::update (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x166BDD: inflate::utils::inflate (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x166DE2: inflate::utils::inflate_bytes_zlib (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x1191DC: test::issue_30_realworld (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x1185C5: core::ops::function::FnOnce::call_once (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x11B8FE: {{closure}} (lib.rs:1451)
==30187==    by 0x11B8FE: call_once<closure,()> (function.rs:223)
==30187==    by 0x11B8FE: <F as alloc::boxed::FnBox<A>>::call_box (boxed.rs:640)
==30187==    by 0x1868D9: __rust_maybe_catch_panic (lib.rs:105)
==30187==    by 0x13CA6D: try<(),std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>> (panicking.rs:289)
==30187==    by 0x13CA6D: catch_unwind<std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>,()> (panic.rs:392)
==30187==    by 0x13CA6D: {{closure}} (lib.rs:1406)
==30187==    by 0x13CA6D: std::sys_common::backtrace::__rust_begin_short_backtrace (backtrace.rs:136)
==30187==    by 0x13D4E4: {{closure}}<closure,()> (mod.rs:409)
==30187==    by 0x13D4E4: call_once<(),closure> (panic.rs:313)
==30187==    by 0x13D4E4: _ZN3std9panicking3try7do_call17hc8dd9c603c8ee86aE.llvm.1944736062225378994 (panicking.rs:310)
==30187==    by 0x1868D9: __rust_maybe_catch_panic (lib.rs:105)
==30187== 
ok
test issue_30_small ... ok
test issue_38_inflate ... ok
test issue_38_update_bits ... ok
test issue_38_update_lendist ... ok
test issue_38_update_no_progress ... ok
test no_checksum ... ==30187== Conditional jump or move depends on uninitialised value(s)
==30187==    at 0x1587A3: inflate::DynHuffman16::new (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x15DFD6: inflate::InflateStream::next_state (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x165D32: inflate::InflateStream::update (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x1192CD: test::no_checksum (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x118595: core::ops::function::FnOnce::call_once (in /media/media/tmp/inflate/target/release/deps/test-7db46c3c67811ea2)
==30187==    by 0x11B8FE: {{closure}} (lib.rs:1451)
==30187==    by 0x11B8FE: call_once<closure,()> (function.rs:223)
==30187==    by 0x11B8FE: <F as alloc::boxed::FnBox<A>>::call_box (boxed.rs:640)
==30187==    by 0x1868D9: __rust_maybe_catch_panic (lib.rs:105)
==30187==    by 0x13CA6D: try<(),std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>> (panicking.rs:289)
==30187==    by 0x13CA6D: catch_unwind<std::panic::AssertUnwindSafe<alloc::boxed::Box<FnBox<()>>>,()> (panic.rs:392)
==30187==    by 0x13CA6D: {{closure}} (lib.rs:1406)
==30187==    by 0x13CA6D: std::sys_common::backtrace::__rust_begin_short_backtrace (backtrace.rs:136)
==30187==    by 0x13D4E4: {{closure}}<closure,()> (mod.rs:409)
==30187==    by 0x13D4E4: call_once<(),closure> (panic.rs:313)
==30187==    by 0x13D4E4: _ZN3std9panicking3try7do_call17hc8dd9c603c8ee86aE.llvm.1944736062225378994 (panicking.rs:310)
==30187==    by 0x1868D9: __rust_maybe_catch_panic (lib.rs:105)
==30187==    by 0x130E96: try<(),std::panic::AssertUnwindSafe<closure>> (panicking.rs:289)
==30187==    by 0x130E96: catch_unwind<std::panic::AssertUnwindSafe<closure>,()> (panic.rs:392)
==30187==    by 0x130E96: {{closure}}<closure,()> (mod.rs:408)
==30187==    by 0x130E96: <F as alloc::boxed::FnBox<A>>::call_box (boxed.rs:640)
==30187==    by 0x16940A: call_once<(),()> (boxed.rs:650)
==30187==    by 0x16940A: std::sys_common::thread::start_thread (thread.rs:24)
==30187== 
ok

test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

==30187== 
==30187== HEAP SUMMARY:
==30187==     in use at exit: 32 bytes in 1 blocks
==30187==   total heap usage: 52 allocs, 51 frees, 3,728 bytes allocated
==30187== 
==30187== LEAK SUMMARY:
==30187==    definitely lost: 0 bytes in 0 blocks
==30187==    indirectly lost: 0 bytes in 0 blocks
==30187==      possibly lost: 0 bytes in 0 blocks
==30187==    still reachable: 32 bytes in 1 blocks
==30187==         suppressed: 0 bytes in 0 blocks
==30187== Rerun with --leak-check=full to see details of leaked memory
==30187== 
==30187== For counts of detected and suppressed errors, rerun with: -v
==30187== Use --track-origins=yes to see where uninitialised values come from
==30187== ERROR SUMMARY: 168 errors from 2 contexts (suppressed: 0 from 0)