Use the log crate instead of stderr

Cargo.lock

@@ -79,12 +79,12 @@ dependencies = [
 
 [[package]]
 name = "atty"
-version = "0.2.14"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+checksum = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
 dependencies = [
- "hermit-abi",
  "libc",
+ "termion",
  "winapi 0.3.8",
 ]
 
@@ -164,7 +164,7 @@ version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "31accafdb70df7871592c058eca3985b71104e15ac32f64706022c58867da931"
 dependencies = [
- "lazy_static",
+ "lazy_static 1.4.0",
  "memchr",
  "regex-automata",
  "serde",
@@ -228,6 +228,17 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
+[[package]]
+name = "chrono"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c74d84029116787153e02106bf53e66828452a4b325cc8652b788b5967c0a0b6"
+dependencies = [
+ "num-integer",
+ "num-traits",
+ "time",
+]
+
 [[package]]
 name = "clap"
 version = "2.33.1"
@@ -281,7 +292,7 @@ dependencies = [
  "criterion-plot",
  "csv",
  "itertools",
- "lazy_static",
+ "lazy_static 1.4.0",
  "num-traits",
  "oorandom",
  "plotters",
@@ -324,7 +335,7 @@ dependencies = [
  "autocfg 1.0.0",
  "cfg-if",
  "crossbeam-utils",
- "lazy_static",
+ "lazy_static 1.4.0",
  "maybe-uninit",
  "memoffset",
  "scopeguard",
@@ -348,7 +359,7 @@ checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
 dependencies = [
  "autocfg 1.0.0",
  "cfg-if",
- "lazy_static",
+ "lazy_static 1.4.0",
 ]
 
 [[package]]
@@ -845,6 +856,12 @@ dependencies = [
  "winapi-build",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76f033c7ad61445c5b347c7382dd1237847eb1bce590fe50365dcb33d546be73"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -951,6 +968,7 @@ dependencies = [
  "itertools",
  "jemallocator",
  "levenshtein_automata",
+ "log 0.4.8",
  "memmap",
  "once_cell",
  "oxidized-mtbl",
@@ -960,6 +978,7 @@ dependencies = [
  "slice-group-by",
  "smallstr",
  "smallvec",
+ "stderrlog",
  "structopt",
  "tempfile",
  "tokio",
@@ -1115,6 +1134,16 @@ dependencies = [
  "version_check 0.9.2",
 ]
 
+[[package]]
+name = "num-integer"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d59457e662d541ba17869cf51cf177c0b5f0cbf476c66bdc90bf1edac4f875b"
+dependencies = [
+ "autocfg 1.0.0",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.12"
@@ -1134,6 +1163,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "numtoa"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
+
 [[package]]
 name = "once_cell"
 version = "1.4.0"
@@ -1505,7 +1540,7 @@ dependencies = [
  "crossbeam-deque",
  "crossbeam-queue",
  "crossbeam-utils",
- "lazy_static",
+ "lazy_static 1.4.0",
  "num_cpus",
 ]
 
@@ -1524,6 +1559,15 @@ version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 
+[[package]]
+name = "redox_termios"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
+dependencies = [
+ "redox_syscall",
+]
+
 [[package]]
 name = "regex"
 version = "1.3.9"
@@ -1738,6 +1782,19 @@ dependencies = [
  "winapi 0.3.8",
 ]
 
+[[package]]
+name = "stderrlog"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32e5ee9b90a5452c570a0b0ac1c99ae9498db7e56e33d74366de7f2a7add7f25"
+dependencies = [
+ "atty",
+ "chrono",
+ "log 0.4.8",
+ "termcolor",
+ "thread_local",
+]
+
 [[package]]
 name = "structopt"
 version = "0.3.14"
@@ -1745,7 +1802,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "863246aaf5ddd0d6928dfeb1a9ca65f505599e4e1b399935ef7e75107516b4ef"
 dependencies = [
  "clap",
- "lazy_static",
+ "lazy_static 1.4.0",
  "structopt-derive",
 ]
 
@@ -1810,6 +1867,27 @@ dependencies = [
  "winapi 0.3.8",
 ]
 
+[[package]]
+name = "termcolor"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "termion"
+version = "1.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c22cec9d8978d906be5ac94bceb5a010d885c626c4c8855721a4dbd20e3ac905"
+dependencies = [
+ "libc",
+ "numtoa",
+ "redox_syscall",
+ "redox_termios",
+]
+
 [[package]]
 name = "textwrap"
 version = "0.11.0"
@@ -1819,6 +1897,16 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "thread_local"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1697c4b57aeeb7a536b647165a2825faddffb1d3bad386d507709bd51a90bb14"
+dependencies = [
+ "lazy_static 0.2.11",
+ "unreachable",
+]
+
 [[package]]
 name = "time"
 version = "0.1.43"
@@ -1849,7 +1937,7 @@ dependencies = [
  "fnv",
  "futures-core",
  "iovec",
- "lazy_static",
+ "lazy_static 1.4.0",
  "libc",
  "memchr",
  "mio",
@@ -2010,6 +2098,15 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
+[[package]]
+name = "unreachable"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
+dependencies = [
+ "void",
+]
+
 [[package]]
 name = "url"
 version = "2.1.1"
@@ -2045,6 +2142,12 @@ version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 
+[[package]]
+name = "void"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
+
 [[package]]
 name = "walkdir"
 version = "2.3.1"
@@ -2115,7 +2218,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ded84f06e0ed21499f6184df0e0cb3494727b0c5da89534e0fcc55c51d812101"
 dependencies = [
  "bumpalo",
- "lazy_static",
+ "lazy_static 1.4.0",
  "log 0.4.8",
  "proc-macro2",
  "quote",