Nov 01 02:13:05.321 INFO testing murphym18/huffman_code against 1.30.0 for beta-1.31-1
Nov 01 02:13:05.323 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-0/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-1/1.30.0:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.0 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 02:13:05.840 INFO blam! 2f3128c7707521736fccff0cdbbbda7238d1f26bbb78e229d04603530562af88
Nov 01 02:13:05.843 INFO running `"docker" "start" "-a" "2f3128c7707521736fccff0cdbbbda7238d1f26bbb78e229d04603530562af88"`
Nov 01 02:13:07.183 INFO kablam! usermod: no changes
Nov 01 02:13:07.243 INFO kablam!    Compiling huffman_code v0.1.0 (/source)
Nov 01 02:13:07.555 INFO kablam! warning: unused import: `std::io`
Nov 01 02:13:07.555 INFO kablam!  --> src/lib.rs:1:5
Nov 01 02:13:07.555 INFO kablam!   |
Nov 01 02:13:07.555 INFO kablam! 1 | use std::io;
Nov 01 02:13:07.556 INFO kablam!   |     ^^^^^^^
Nov 01 02:13:07.556 INFO kablam!   |
Nov 01 02:13:07.556 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 02:13:07.556 INFO kablam! 
Nov 01 02:13:07.556 INFO kablam! warning: unused import: `Cursor`
Nov 01 02:13:07.556 INFO kablam!  --> src/lib.rs:5:28
Nov 01 02:13:07.557 INFO kablam!   |
Nov 01 02:13:07.557 INFO kablam! 5 | use std::io::{Read, Write, Cursor};
Nov 01 02:13:07.557 INFO kablam!   |                            ^^^^^^
Nov 01 02:13:07.557 INFO kablam! 
Nov 01 02:13:07.687 INFO kablam! warning: unused variable: `left`
Nov 01 02:13:07.688 INFO kablam!    --> src/lib.rs:171:26
Nov 01 02:13:07.688 INFO kablam!     |
Nov 01 02:13:07.688 INFO kablam! 171 |         Node {count, ref left, ref right} => count,
Nov 01 02:13:07.689 INFO kablam!     |                          ^^^^ help: try ignoring the field: `left: _`
Nov 01 02:13:07.689 INFO kablam!     |
Nov 01 02:13:07.689 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 02:13:07.689 INFO kablam! 
Nov 01 02:13:07.690 INFO kablam! warning: unused variable: `right`
Nov 01 02:13:07.690 INFO kablam!    --> src/lib.rs:171:36
Nov 01 02:13:07.690 INFO kablam!     |
Nov 01 02:13:07.691 INFO kablam! 171 |         Node {count, ref left, ref right} => count,
Nov 01 02:13:07.691 INFO kablam!     |                                    ^^^^^ help: try ignoring the field: `right: _`
Nov 01 02:13:07.691 INFO kablam! 
Nov 01 02:13:07.692 INFO kablam! warning: unused variable: `value`
Nov 01 02:13:07.692 INFO kablam!    --> src/lib.rs:172:22
Nov 01 02:13:07.692 INFO kablam!     |
Nov 01 02:13:07.692 INFO kablam! 172 |         Leaf {count, value} => count
Nov 01 02:13:07.693 INFO kablam!     |                      ^^^^^ help: try ignoring the field: `value: _`
Nov 01 02:13:07.693 INFO kablam! 
Nov 01 02:13:07.693 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:07.693 INFO kablam!    --> src/lib.rs:178:15
Nov 01 02:13:07.694 INFO kablam!     |
Nov 01 02:13:07.694 INFO kablam! 178 |         Node {count, ref left, ref right} => {
Nov 01 02:13:07.694 INFO kablam!     |               ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:07.695 INFO kablam! 
Nov 01 02:13:07.695 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:07.695 INFO kablam!    --> src/lib.rs:235:19
Nov 01 02:13:07.696 INFO kablam!     |
Nov 01 02:13:07.696 INFO kablam! 235 |             Leaf {count, value} => {
Nov 01 02:13:07.696 INFO kablam!     |                   ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:07.696 INFO kablam! 
Nov 01 02:13:07.697 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:07.697 INFO kablam!    --> src/lib.rs:240:19
Nov 01 02:13:07.697 INFO kablam!     |
Nov 01 02:13:07.698 INFO kablam! 240 |             Node {count, ref left, ref right} => {
Nov 01 02:13:07.698 INFO kablam!     |                   ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:07.698 INFO kablam! 
Nov 01 02:13:07.699 INFO kablam! warning: unused variable: `p`
Nov 01 02:13:07.699 INFO kablam!    --> src/lib.rs:303:9
Nov 01 02:13:07.699 INFO kablam!     |
Nov 01 02:13:07.700 INFO kablam! 303 |     let p = 97 as u8;
Nov 01 02:13:07.700 INFO kablam!     |         ^ help: consider using `_p` instead
Nov 01 02:13:07.700 INFO kablam! 
Nov 01 02:13:07.700 INFO kablam! warning: unused variable: `value`
Nov 01 02:13:07.701 INFO kablam!    --> src/lib.rs:346:26
Nov 01 02:13:07.701 INFO kablam!     |
Nov 01 02:13:07.701 INFO kablam! 346 |             Leaf {count, value} => size = size + count,
Nov 01 02:13:07.702 INFO kablam!     |                          ^^^^^ help: try ignoring the field: `value: _`
Nov 01 02:13:07.702 INFO kablam! 
Nov 01 02:13:07.702 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:07.702 INFO kablam!    --> src/lib.rs:395:15
Nov 01 02:13:07.703 INFO kablam!     |
Nov 01 02:13:07.703 INFO kablam! 395 |         Node {count, ref left, ref right} => {
Nov 01 02:13:07.703 INFO kablam!     |               ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:07.703 INFO kablam! 
Nov 01 02:13:07.704 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:07.704 INFO kablam!    --> src/lib.rs:403:15
Nov 01 02:13:07.704 INFO kablam!     |
Nov 01 02:13:07.705 INFO kablam! 403 |         Leaf {count, value}  => {
Nov 01 02:13:07.705 INFO kablam!     |               ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:07.705 INFO kablam! 
Nov 01 02:13:07.705 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:07.706 INFO kablam!    --> src/lib.rs:215:9
Nov 01 02:13:07.706 INFO kablam!     |
Nov 01 02:13:07.706 INFO kablam! 215 |     let mut tree = make_tree(table_vec);
Nov 01 02:13:07.707 INFO kablam!     |         ----^^^^
Nov 01 02:13:07.707 INFO kablam!     |         |
Nov 01 02:13:07.707 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:07.707 INFO kablam!     |
Nov 01 02:13:07.708 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 01 02:13:07.708 INFO kablam! 
Nov 01 02:13:07.708 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:07.709 INFO kablam!    --> src/lib.rs:300:9
Nov 01 02:13:07.709 INFO kablam!     |
Nov 01 02:13:07.709 INFO kablam! 300 |     let mut tree = make_tree(v);
Nov 01 02:13:07.709 INFO kablam!     |         ----^^^^
Nov 01 02:13:07.710 INFO kablam!     |         |
Nov 01 02:13:07.710 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:07.710 INFO kablam! 
Nov 01 02:13:07.715 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:07.715 INFO kablam!    --> src/lib.rs:350:9
Nov 01 02:13:07.715 INFO kablam!     |
Nov 01 02:13:07.715 INFO kablam! 350 |     let mut buf: [u8; 8] = unsafe {
Nov 01 02:13:07.716 INFO kablam!     |         ----^^^
Nov 01 02:13:07.716 INFO kablam!     |         |
Nov 01 02:13:07.716 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:07.716 INFO kablam! 
Nov 01 02:13:07.717 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:07.717 INFO kablam!    --> src/lib.rs:388:9
Nov 01 02:13:07.717 INFO kablam!     |
Nov 01 02:13:07.718 INFO kablam! 388 |     let mut bits = BitString::new();
Nov 01 02:13:07.718 INFO kablam!     |         ----^^^^
Nov 01 02:13:07.718 INFO kablam!     |         |
Nov 01 02:13:07.719 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:07.719 INFO kablam! 
Nov 01 02:13:07.719 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:07.719 INFO kablam!    --> src/lib.rs:393:29
Nov 01 02:13:07.720 INFO kablam!     |
Nov 01 02:13:07.720 INFO kablam! 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap<u8, BitString>) {
Nov 01 02:13:07.720 INFO kablam!     |                             ----^^^^
Nov 01 02:13:07.721 INFO kablam!     |                             |
Nov 01 02:13:07.721 INFO kablam!     |                             help: remove this `mut`
Nov 01 02:13:07.721 INFO kablam! 
Nov 01 02:13:07.721 INFO kablam! warning: function is never used: `byte_string`
Nov 01 02:13:07.721 INFO kablam!    --> src/lib.rs:138:1
Nov 01 02:13:07.721 INFO kablam!     |
Nov 01 02:13:07.721 INFO kablam! 138 | fn byte_string(data: u8, num_bits: u8) -> String {
Nov 01 02:13:07.721 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam!     = note: #[warn(dead_code)] on by default
Nov 01 02:13:07.722 INFO kablam! 
Nov 01 02:13:07.722 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:07.722 INFO kablam!    --> src/lib.rs:104:9
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam! 104 |         self.output.write(&a);
Nov 01 02:13:07.722 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 01 02:13:07.722 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:07.722 INFO kablam! 
Nov 01 02:13:07.722 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:07.722 INFO kablam!    --> src/lib.rs:236:17
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam! 236 |                 output.write(&[value]);
Nov 01 02:13:07.722 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:07.722 INFO kablam! 
Nov 01 02:13:07.722 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:07.722 INFO kablam!    --> src/lib.rs:306:5
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam! 306 |     f.seek(SeekFrom::Start(0));
Nov 01 02:13:07.722 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:07.722 INFO kablam! 
Nov 01 02:13:07.722 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:07.722 INFO kablam!    --> src/lib.rs:321:5
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam! 321 |     output.write_all(&list_len_buf);
Nov 01 02:13:07.722 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:07.722 INFO kablam! 
Nov 01 02:13:07.722 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:07.722 INFO kablam!    --> src/lib.rs:334:17
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam! 334 |                 output.write_all(&buf);
Nov 01 02:13:07.722 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:07.722 INFO kablam! 
Nov 01 02:13:07.722 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:07.722 INFO kablam!    --> src/lib.rs:353:5
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam! 353 |     output.write_all(&buf);
Nov 01 02:13:07.722 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:07.722 INFO kablam!     |
Nov 01 02:13:07.722 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:07.722 INFO kablam! 
Nov 01 02:13:09.019 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
Nov 01 02:13:09.030 INFO kablam! su: No module specific data is present
Nov 01 02:13:09.713 INFO running `"docker" "rm" "-f" "2f3128c7707521736fccff0cdbbbda7238d1f26bbb78e229d04603530562af88"`
Nov 01 02:13:09.974 INFO blam! 2f3128c7707521736fccff0cdbbbda7238d1f26bbb78e229d04603530562af88
Nov 01 02:13:09.984 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-0/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-1/1.30.0:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.0 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 02:13:10.505 INFO blam! b6a4184e9cc058f396a73e1099dc6eaa4d114b57fbbddf7fd606ff7b09209237
Nov 01 02:13:10.509 INFO running `"docker" "start" "-a" "b6a4184e9cc058f396a73e1099dc6eaa4d114b57fbbddf7fd606ff7b09209237"`
Nov 01 02:13:11.510 INFO kablam! usermod: no changes
Nov 01 02:13:11.553 INFO kablam!    Compiling huffman_code v0.1.0 (/source)
Nov 01 02:13:11.955 INFO kablam! warning: unused import: `std::io`
Nov 01 02:13:11.955 INFO kablam!  --> src/lib.rs:1:5
Nov 01 02:13:11.955 INFO kablam!   |
Nov 01 02:13:11.955 INFO kablam! 1 | use std::io;
Nov 01 02:13:11.955 INFO kablam!   |     ^^^^^^^
Nov 01 02:13:11.955 INFO kablam!   |
Nov 01 02:13:11.955 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 02:13:11.955 INFO kablam! 
Nov 01 02:13:11.955 INFO kablam! warning: unused import: `Cursor`
Nov 01 02:13:11.955 INFO kablam!  --> src/lib.rs:5:28
Nov 01 02:13:11.955 INFO kablam!   |
Nov 01 02:13:11.955 INFO kablam! 5 | use std::io::{Read, Write, Cursor};
Nov 01 02:13:11.955 INFO kablam!   |                            ^^^^^^
Nov 01 02:13:11.955 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `left`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:171:26
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 171 |         Node {count, ref left, ref right} => count,
Nov 01 02:13:12.233 INFO kablam!     |                          ^^^^ help: try ignoring the field: `left: _`
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `right`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:171:36
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 171 |         Node {count, ref left, ref right} => count,
Nov 01 02:13:12.233 INFO kablam!     |                                    ^^^^^ help: try ignoring the field: `right: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `value`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:172:22
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 172 |         Leaf {count, value} => count
Nov 01 02:13:12.233 INFO kablam!     |                      ^^^^^ help: try ignoring the field: `value: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:178:15
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 178 |         Node {count, ref left, ref right} => {
Nov 01 02:13:12.233 INFO kablam!     |               ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:235:19
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 235 |             Leaf {count, value} => {
Nov 01 02:13:12.233 INFO kablam!     |                   ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:240:19
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 240 |             Node {count, ref left, ref right} => {
Nov 01 02:13:12.233 INFO kablam!     |                   ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `p`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:303:9
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 303 |     let p = 97 as u8;
Nov 01 02:13:12.233 INFO kablam!     |         ^ help: consider using `_p` instead
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `value`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:346:26
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 346 |             Leaf {count, value} => size = size + count,
Nov 01 02:13:12.233 INFO kablam!     |                          ^^^^^ help: try ignoring the field: `value: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:395:15
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 395 |         Node {count, ref left, ref right} => {
Nov 01 02:13:12.233 INFO kablam!     |               ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.233 INFO kablam! warning: unused variable: `count`
Nov 01 02:13:12.233 INFO kablam!    --> src/lib.rs:403:15
Nov 01 02:13:12.233 INFO kablam!     |
Nov 01 02:13:12.233 INFO kablam! 403 |         Leaf {count, value}  => {
Nov 01 02:13:12.233 INFO kablam!     |               ^^^^^ help: try ignoring the field: `count: _`
Nov 01 02:13:12.233 INFO kablam! 
Nov 01 02:13:12.279 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:12.279 INFO kablam!    --> src/lib.rs:215:9
Nov 01 02:13:12.279 INFO kablam!     |
Nov 01 02:13:12.279 INFO kablam! 215 |     let mut tree = make_tree(table_vec);
Nov 01 02:13:12.279 INFO kablam!     |         ----^^^^
Nov 01 02:13:12.279 INFO kablam!     |         |
Nov 01 02:13:12.279 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:12.279 INFO kablam!     |
Nov 01 02:13:12.279 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 01 02:13:12.279 INFO kablam! 
Nov 01 02:13:12.291 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:12.291 INFO kablam!    --> src/lib.rs:300:9
Nov 01 02:13:12.291 INFO kablam!     |
Nov 01 02:13:12.291 INFO kablam! 300 |     let mut tree = make_tree(v);
Nov 01 02:13:12.291 INFO kablam!     |         ----^^^^
Nov 01 02:13:12.291 INFO kablam!     |         |
Nov 01 02:13:12.291 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:12.291 INFO kablam! 
Nov 01 02:13:12.291 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:12.291 INFO kablam!    --> src/lib.rs:350:9
Nov 01 02:13:12.291 INFO kablam!     |
Nov 01 02:13:12.291 INFO kablam! 350 |     let mut buf: [u8; 8] = unsafe {
Nov 01 02:13:12.291 INFO kablam!     |         ----^^^
Nov 01 02:13:12.291 INFO kablam!     |         |
Nov 01 02:13:12.291 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:12.291 INFO kablam! 
Nov 01 02:13:12.291 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:12.291 INFO kablam!    --> src/lib.rs:388:9
Nov 01 02:13:12.291 INFO kablam!     |
Nov 01 02:13:12.291 INFO kablam! 388 |     let mut bits = BitString::new();
Nov 01 02:13:12.291 INFO kablam!     |         ----^^^^
Nov 01 02:13:12.291 INFO kablam!     |         |
Nov 01 02:13:12.291 INFO kablam!     |         help: remove this `mut`
Nov 01 02:13:12.291 INFO kablam! 
Nov 01 02:13:12.291 INFO kablam! warning: variable does not need to be mutable
Nov 01 02:13:12.291 INFO kablam!    --> src/lib.rs:393:29
Nov 01 02:13:12.291 INFO kablam!     |
Nov 01 02:13:12.291 INFO kablam! 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap<u8, BitString>) {
Nov 01 02:13:12.291 INFO kablam!     |                             ----^^^^
Nov 01 02:13:12.291 INFO kablam!     |                             |
Nov 01 02:13:12.291 INFO kablam!     |                             help: remove this `mut`
Nov 01 02:13:12.291 INFO kablam! 
Nov 01 02:13:12.307 INFO kablam! warning: function is never used: `byte_string`
Nov 01 02:13:12.307 INFO kablam!    --> src/lib.rs:138:1
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam! 138 | fn byte_string(data: u8, num_bits: u8) -> String {
Nov 01 02:13:12.307 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam!     = note: #[warn(dead_code)] on by default
Nov 01 02:13:12.307 INFO kablam! 
Nov 01 02:13:12.307 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:12.307 INFO kablam!    --> src/lib.rs:104:9
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam! 104 |         self.output.write(&a);
Nov 01 02:13:12.307 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 01 02:13:12.307 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:12.307 INFO kablam! 
Nov 01 02:13:12.307 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:12.307 INFO kablam!    --> src/lib.rs:236:17
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam! 236 |                 output.write(&[value]);
Nov 01 02:13:12.307 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:12.307 INFO kablam! 
Nov 01 02:13:12.307 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:12.307 INFO kablam!    --> src/lib.rs:306:5
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam! 306 |     f.seek(SeekFrom::Start(0));
Nov 01 02:13:12.307 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:12.307 INFO kablam! 
Nov 01 02:13:12.307 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:12.307 INFO kablam!    --> src/lib.rs:321:5
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam! 321 |     output.write_all(&list_len_buf);
Nov 01 02:13:12.307 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.307 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:12.307 INFO kablam! 
Nov 01 02:13:12.307 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:12.307 INFO kablam!    --> src/lib.rs:334:17
Nov 01 02:13:12.307 INFO kablam!     |
Nov 01 02:13:12.308 INFO kablam! 334 |                 output.write_all(&buf);
Nov 01 02:13:12.308 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:12.308 INFO kablam!     |
Nov 01 02:13:12.308 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:12.308 INFO kablam! 
Nov 01 02:13:12.308 INFO kablam! warning: unused `std::result::Result` which must be used
Nov 01 02:13:12.308 INFO kablam!    --> src/lib.rs:353:5
Nov 01 02:13:12.308 INFO kablam!     |
Nov 01 02:13:12.308 INFO kablam! 353 |     output.write_all(&buf);
Nov 01 02:13:12.308 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 02:13:12.308 INFO kablam!     |
Nov 01 02:13:12.308 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 02:13:12.308 INFO kablam! 
Nov 01 02:13:12.999 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
Nov 01 02:13:12.999 INFO kablam! su: No module specific data is present
Nov 01 02:13:13.804 INFO running `"docker" "rm" "-f" "b6a4184e9cc058f396a73e1099dc6eaa4d114b57fbbddf7fd606ff7b09209237"`
Nov 01 02:13:14.023 INFO blam! b6a4184e9cc058f396a73e1099dc6eaa4d114b57fbbddf7fd606ff7b09209237
Nov 01 02:13:14.025 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-0/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-1/1.30.0:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.0 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 02:13:14.477 INFO blam! 48840df8a60d84a59608d39cac3a16bcd1154ef5bbb01a6e55a9eb0d3a6480ba
Nov 01 02:13:14.479 INFO running `"docker" "start" "-a" "48840df8a60d84a59608d39cac3a16bcd1154ef5bbb01a6e55a9eb0d3a6480ba"`
Nov 01 02:13:16.102 INFO kablam! usermod: no changes
Nov 01 02:13:16.213 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Nov 01 02:13:16.215 INFO kablam!      Running /target/debug/deps/huffman_code-65c7709041c588fb
Nov 01 02:13:16.221 INFO blam! 
Nov 01 02:13:16.221 INFO blam! running 0 tests
Nov 01 02:13:16.221 INFO blam! 
Nov 01 02:13:16.221 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 01 02:13:16.221 INFO blam! 
Nov 01 02:13:16.223 INFO kablam!      Running /target/debug/deps/huffman_code-38d02f4e8ae138eb
Nov 01 02:13:16.234 INFO kablam!    Doc-tests huffman_code
Nov 01 02:13:16.234 INFO blam! 
Nov 01 02:13:16.234 INFO blam! running 0 tests
Nov 01 02:13:16.234 INFO blam! 
Nov 01 02:13:16.234 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 01 02:13:16.234 INFO blam! 
Nov 01 02:13:16.840 INFO blam! 
Nov 01 02:13:16.840 INFO blam! running 0 tests
Nov 01 02:13:16.840 INFO blam! 
Nov 01 02:13:16.840 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 01 02:13:16.840 INFO blam! 
Nov 01 02:13:16.844 INFO kablam! su: No module specific data is present
Nov 01 02:13:17.911 INFO running `"docker" "rm" "-f" "48840df8a60d84a59608d39cac3a16bcd1154ef5bbb01a6e55a9eb0d3a6480ba"`
Nov 01 02:13:18.167 INFO blam! 48840df8a60d84a59608d39cac3a16bcd1154ef5bbb01a6e55a9eb0d3a6480ba
