Update Cargo.lock

[kinnison]

Hopefully this will sort out various issues we've been having.

Fixes: #1710
The summary from Cargo was:

      Adding MacTypes-sys v2.1.0
    Updating aho-corasick v0.6.8 -> v0.6.10
    Updating arrayvec v0.4.7 -> v0.4.10
      Adding autocfg v0.1.2
    Updating backtrace v0.3.9 -> v0.3.14
    Updating backtrace-sys v0.1.24 -> v0.1.28
    Updating base64 v0.9.3 -> v0.10.1
    Updating byteorder v1.2.6 -> v1.3.1
    Updating bytes v0.4.10 -> v0.4.12
    Updating cc v1.0.25 -> v1.0.31
    Updating cfg-if v0.1.5 -> v0.1.7
      Adding crc32fast v1.2.0
    Updating crossbeam-deque v0.6.1 -> v0.7.1
    Updating crossbeam-epoch v0.5.2 -> v0.7.1
      Adding crossbeam-queue v0.1.2
    Updating crossbeam-utils v0.5.0 -> v0.6.5
    Updating curl v0.4.18 -> v0.4.20
    Updating curl-sys v0.4.12 -> v0.4.17
    Updating dirs v1.0.4 -> v1.0.5
    Updating either v1.5.0 -> v1.5.1
    Updating encoding_rs v0.8.10 -> v0.8.17
    Updating failure v0.1.3 -> v0.1.5
    Updating failure_derive v0.1.3 -> v0.1.5
    Updating filetime v0.2.1 -> v0.2.4
    Updating flate2 v1.0.3 -> v1.0.7
      Adding fuchsia-cprng v0.1.1
    Updating futures v0.1.24 -> v0.1.25
    Updating gcc v0.3.54 -> v0.3.55
    Updating h2 v0.1.12 -> v0.1.17
    Updating http v0.1.13 -> v0.1.16
    Updating hyper v0.12.11 -> v0.12.25
    Updating indexmap v1.0.1 -> v1.0.2
    Updating itertools v0.7.8 -> v0.7.11
    Updating lazy_static v1.1.0 -> v1.3.0
    Updating lazycell v1.2.0 -> v1.2.1
    Updating libc v0.2.43 -> v0.2.50
    Updating libflate v0.1.18 -> v0.1.21
    Updating lock_api v0.1.4 -> v0.1.5
    Updating log v0.4.5 -> v0.4.6
    Updating lzma-sys v0.1.10 -> v0.1.14
    Updating memchr v2.1.0 -> v2.2.0
    Updating mime v0.3.9 -> v0.3.13
    Updating miniz-sys v0.1.10 -> v0.1.11
      Adding miniz_oxide v0.2.1
      Adding miniz_oxide_c_api v0.2.1
    Removing mio-uds v0.6.7
    Updating native-tls v0.2.1 -> v0.2.2
    Updating nodrop v0.1.12 -> v0.1.13
    Updating num_cpus v1.8.0 -> v1.10.0
    Updating openssl v0.10.15 -> v0.10.19
    Updating openssl-src v111.0.1+1.1.1 -> v111.2.1+1.1.1b
    Updating openssl-sys v0.9.39 -> v0.9.42
    Updating owning_ref v0.3.3 -> v0.4.0
    Updating parking_lot v0.6.4 -> v0.7.1
    Updating parking_lot_core v0.3.1 -> v0.4.0
    Updating phf v0.7.23 -> v0.7.24
    Updating phf_codegen v0.7.23 -> v0.7.24
    Updating phf_generator v0.7.23 -> v0.7.24
    Updating phf_shared v0.7.23 -> v0.7.24
    Updating proc-macro2 v0.4.20 -> v0.4.27
    Updating quote v0.6.8 -> v0.6.11
    Removing rand v0.4.3
    Removing rand v0.5.5
      Adding rand v0.4.6
      Adding rand v0.5.6
      Adding rand v0.6.5
      Adding rand_chacha v0.1.1
    Removing rand_core v0.2.2
    Removing rand_core v0.3.0
      Adding rand_core v0.3.1
      Adding rand_core v0.4.0
      Adding rand_hc v0.1.0
      Adding rand_isaac v0.1.1
      Adding rand_jitter v0.1.3
      Adding rand_os v0.1.3
      Adding rand_pcg v0.1.2
      Adding rand_xorshift v0.1.1
      Adding rdrand v0.4.0
    Updating redox_syscall v0.1.40 -> v0.1.51
    Updating redox_users v0.2.0 -> v0.3.0
    Updating regex v1.0.5 -> v1.1.2
    Updating regex-syntax v0.6.2 -> v0.6.5
    Updating reqwest v0.9.2 -> v0.9.11
    Updating rustc-demangle v0.1.9 -> v0.1.13
    Updating ryu v0.2.6 -> v0.2.7
    Removing safemem v0.3.0
    Updating same-file v1.0.3 -> v1.0.4
    Updating schannel v0.1.14 -> v0.1.15
    Updating security-framework v0.2.1 -> v0.2.2
    Updating security-framework-sys v0.2.1 -> v0.2.3
    Updating serde v1.0.87 -> v1.0.89
    Updating serde_json v1.0.32 -> v1.0.39
    Updating serde_urlencoded v0.5.3 -> v0.5.4
    Updating slab v0.4.1 -> v0.4.2
    Updating smallvec v0.6.5 -> v0.6.9
    Updating string v0.1.1 -> v0.1.3
    Updating syn v0.15.9 -> v0.15.29
    Updating tar v0.4.17 -> v0.4.22
    Updating tempfile v3.0.4 -> v3.0.7
    Updating time v0.1.40 -> v0.1.42
    Updating tokio v0.1.11 -> v0.1.17
    Removing tokio-codec v0.1.1
    Updating tokio-current-thread v0.1.3 -> v0.1.5
    Updating tokio-executor v0.1.5 -> v0.1.6
    Removing tokio-fs v0.1.3
    Updating tokio-io v0.1.9 -> v0.1.12
    Updating tokio-reactor v0.1.6 -> v0.1.9
      Adding tokio-sync v0.1.4
    Updating tokio-tcp v0.1.2 -> v0.1.3
    Updating tokio-threadpool v0.1.7 -> v0.1.12
    Updating tokio-timer v0.2.7 -> v0.2.10
      Adding tokio-trace-core v0.1.0
    Removing tokio-udp v0.1.2
    Removing tokio-uds v0.2.2
    Updating toml v0.4.8 -> v0.4.10
    Updating ucd-util v0.1.1 -> v0.1.3
    Updating unicase v2.2.0 -> v2.3.0
    Updating unicode-normalization v0.1.7 -> v0.1.8
    Removing unreachable v1.0.0
    Updating url v1.7.1 -> v1.7.2
    Updating utf8-ranges v1.0.1 -> v1.0.2
    Updating uuid v0.7.1 -> v0.7.2
    Removing void v1.0.2
    Updating walkdir v2.2.5 -> v2.2.7
    Updating winapi-util v0.1.1 -> v0.1.2
    Updating xz2 v0.1.5 -> v0.1.6