Dec 05 13:30:12.004 INFO testing murphym18/huffman_code against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514 Dec 05 13:30:12.004 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Dec 05 13:30:12.258 INFO [stdout] 672d21380e43904cf6e5469e58ffc133fda5d6f311f6b8fbee003d1678f6a522 Dec 05 13:30:12.260 INFO running `"docker" "start" "-a" "672d21380e43904cf6e5469e58ffc133fda5d6f311f6b8fbee003d1678f6a522"` Dec 05 13:30:12.654 INFO [stderr] usermod: no changes Dec 05 13:30:12.679 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Dec 05 13:30:12.881 INFO [stderr] warning: unused import: `std::io` Dec 05 13:30:12.881 INFO [stderr] --> src/lib.rs:1:5 Dec 05 13:30:12.881 INFO [stderr] | Dec 05 13:30:12.881 INFO [stderr] 1 | use std::io; Dec 05 13:30:12.881 INFO [stderr] | ^^^^^^^ Dec 05 13:30:12.881 INFO [stderr] | Dec 05 13:30:12.881 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 05 13:30:12.881 INFO [stderr] Dec 05 13:30:12.881 INFO [stderr] warning: unused import: `Cursor` Dec 05 13:30:12.881 INFO [stderr] --> src/lib.rs:5:28 Dec 05 13:30:12.881 INFO [stderr] | Dec 05 13:30:12.881 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Dec 05 13:30:12.881 INFO [stderr] | ^^^^^^ Dec 05 13:30:12.881 INFO [stderr] Dec 05 13:30:13.012 INFO [stderr] warning: unused variable: `left` Dec 05 13:30:13.012 INFO [stderr] --> src/lib.rs:171:26 Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:13.012 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 05 13:30:13.012 INFO [stderr] Dec 05 13:30:13.012 INFO [stderr] warning: unused variable: `right` Dec 05 13:30:13.012 INFO [stderr] --> src/lib.rs:171:36 Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:13.012 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Dec 05 13:30:13.012 INFO [stderr] Dec 05 13:30:13.012 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:13.012 INFO [stderr] --> src/lib.rs:172:22 Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] 172 | Leaf {count, value} => count Dec 05 13:30:13.012 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:13.012 INFO [stderr] Dec 05 13:30:13.012 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.012 INFO [stderr] --> src/lib.rs:178:15 Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] 178 | Node {count, ref left, ref right} => { Dec 05 13:30:13.012 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.012 INFO [stderr] Dec 05 13:30:13.012 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.012 INFO [stderr] --> src/lib.rs:235:19 Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] 235 | Leaf {count, value} => { Dec 05 13:30:13.012 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.012 INFO [stderr] Dec 05 13:30:13.012 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.012 INFO [stderr] --> src/lib.rs:240:19 Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] 240 | Node {count, ref left, ref right} => { Dec 05 13:30:13.012 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.012 INFO [stderr] Dec 05 13:30:13.012 INFO [stderr] warning: unused variable: `p` Dec 05 13:30:13.012 INFO [stderr] --> src/lib.rs:303:9 Dec 05 13:30:13.012 INFO [stderr] | Dec 05 13:30:13.012 INFO [stderr] 303 | let p = 97 as u8; Dec 05 13:30:13.013 INFO [stderr] | ^ help: consider using `_p` instead Dec 05 13:30:13.013 INFO [stderr] Dec 05 13:30:13.013 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:13.013 INFO [stderr] --> src/lib.rs:346:26 Dec 05 13:30:13.013 INFO [stderr] | Dec 05 13:30:13.013 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Dec 05 13:30:13.013 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:13.013 INFO [stderr] Dec 05 13:30:13.013 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.013 INFO [stderr] --> src/lib.rs:395:15 Dec 05 13:30:13.013 INFO [stderr] | Dec 05 13:30:13.013 INFO [stderr] 395 | Node {count, ref left, ref right} => { Dec 05 13:30:13.013 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.017 INFO [stderr] Dec 05 13:30:13.017 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.017 INFO [stderr] --> src/lib.rs:403:15 Dec 05 13:30:13.017 INFO [stderr] | Dec 05 13:30:13.017 INFO [stderr] 403 | Leaf {count, value} => { Dec 05 13:30:13.017 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.017 INFO [stderr] Dec 05 13:30:13.026 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.026 INFO [stderr] --> src/lib.rs:215:9 Dec 05 13:30:13.026 INFO [stderr] | Dec 05 13:30:13.026 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Dec 05 13:30:13.026 INFO [stderr] | ----^^^^ Dec 05 13:30:13.026 INFO [stderr] | | Dec 05 13:30:13.026 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.026 INFO [stderr] | Dec 05 13:30:13.026 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 05 13:30:13.026 INFO [stderr] Dec 05 13:30:13.033 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.033 INFO [stderr] --> src/lib.rs:300:9 Dec 05 13:30:13.033 INFO [stderr] | Dec 05 13:30:13.033 INFO [stderr] 300 | let mut tree = make_tree(v); Dec 05 13:30:13.033 INFO [stderr] | ----^^^^ Dec 05 13:30:13.033 INFO [stderr] | | Dec 05 13:30:13.033 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.033 INFO [stderr] Dec 05 13:30:13.033 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.033 INFO [stderr] --> src/lib.rs:350:9 Dec 05 13:30:13.033 INFO [stderr] | Dec 05 13:30:13.033 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Dec 05 13:30:13.033 INFO [stderr] | ----^^^ Dec 05 13:30:13.033 INFO [stderr] | | Dec 05 13:30:13.033 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.033 INFO [stderr] Dec 05 13:30:13.035 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.035 INFO [stderr] --> src/lib.rs:388:9 Dec 05 13:30:13.035 INFO [stderr] | Dec 05 13:30:13.035 INFO [stderr] 388 | let mut bits = BitString::new(); Dec 05 13:30:13.035 INFO [stderr] | ----^^^^ Dec 05 13:30:13.035 INFO [stderr] | | Dec 05 13:30:13.035 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.035 INFO [stderr] Dec 05 13:30:13.036 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.036 INFO [stderr] --> src/lib.rs:393:29 Dec 05 13:30:13.036 INFO [stderr] | Dec 05 13:30:13.036 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Dec 05 13:30:13.036 INFO [stderr] | ----^^^^ Dec 05 13:30:13.036 INFO [stderr] | | Dec 05 13:30:13.036 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.036 INFO [stderr] Dec 05 13:30:13.042 INFO [stderr] warning: function is never used: `byte_string` Dec 05 13:30:13.042 INFO [stderr] --> src/lib.rs:138:1 Dec 05 13:30:13.042 INFO [stderr] | Dec 05 13:30:13.042 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Dec 05 13:30:13.042 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.042 INFO [stderr] | Dec 05 13:30:13.042 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 05 13:30:13.042 INFO [stderr] Dec 05 13:30:13.042 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.042 INFO [stderr] --> src/lib.rs:104:9 Dec 05 13:30:13.042 INFO [stderr] | Dec 05 13:30:13.042 INFO [stderr] 104 | self.output.write(&a); Dec 05 13:30:13.042 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.042 INFO [stderr] | Dec 05 13:30:13.042 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 05 13:30:13.042 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.042 INFO [stderr] Dec 05 13:30:13.043 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.043 INFO [stderr] --> src/lib.rs:236:17 Dec 05 13:30:13.043 INFO [stderr] | Dec 05 13:30:13.043 INFO [stderr] 236 | output.write(&[value]); Dec 05 13:30:13.043 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.043 INFO [stderr] | Dec 05 13:30:13.043 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.043 INFO [stderr] Dec 05 13:30:13.043 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.043 INFO [stderr] --> src/lib.rs:306:5 Dec 05 13:30:13.043 INFO [stderr] | Dec 05 13:30:13.043 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Dec 05 13:30:13.043 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.043 INFO [stderr] | Dec 05 13:30:13.043 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.043 INFO [stderr] Dec 05 13:30:13.048 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.048 INFO [stderr] --> src/lib.rs:321:5 Dec 05 13:30:13.048 INFO [stderr] | Dec 05 13:30:13.048 INFO [stderr] 321 | output.write_all(&list_len_buf); Dec 05 13:30:13.048 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.048 INFO [stderr] | Dec 05 13:30:13.048 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.048 INFO [stderr] Dec 05 13:30:13.048 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.048 INFO [stderr] --> src/lib.rs:334:17 Dec 05 13:30:13.048 INFO [stderr] | Dec 05 13:30:13.048 INFO [stderr] 334 | output.write_all(&buf); Dec 05 13:30:13.048 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.048 INFO [stderr] | Dec 05 13:30:13.048 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.048 INFO [stderr] Dec 05 13:30:13.048 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.048 INFO [stderr] --> src/lib.rs:353:5 Dec 05 13:30:13.048 INFO [stderr] | Dec 05 13:30:13.048 INFO [stderr] 353 | output.write_all(&buf); Dec 05 13:30:13.048 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.048 INFO [stderr] | Dec 05 13:30:13.048 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.048 INFO [stderr] Dec 05 13:30:13.889 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.22s Dec 05 13:30:13.894 INFO [stderr] su: No module specific data is present Dec 05 13:30:14.313 INFO running `"docker" "inspect" "672d21380e43904cf6e5469e58ffc133fda5d6f311f6b8fbee003d1678f6a522"` Dec 05 13:30:14.464 INFO running `"docker" "rm" "-f" "672d21380e43904cf6e5469e58ffc133fda5d6f311f6b8fbee003d1678f6a522"` Dec 05 13:30:14.572 INFO [stdout] 672d21380e43904cf6e5469e58ffc133fda5d6f311f6b8fbee003d1678f6a522 Dec 05 13:30:14.574 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Dec 05 13:30:14.859 INFO [stdout] 14896900282a0c86ff414673f89f8e79b8c28829241323335694b386382653f7 Dec 05 13:30:14.862 INFO running `"docker" "start" "-a" "14896900282a0c86ff414673f89f8e79b8c28829241323335694b386382653f7"` Dec 05 13:30:15.984 INFO [stderr] usermod: no changes Dec 05 13:30:16.037 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Dec 05 13:30:16.532 INFO [stderr] warning: unused import: `std::io` Dec 05 13:30:16.532 INFO [stderr] --> src/lib.rs:1:5 Dec 05 13:30:16.532 INFO [stderr] | Dec 05 13:30:16.532 INFO [stderr] 1 | use std::io; Dec 05 13:30:16.532 INFO [stderr] | ^^^^^^^ Dec 05 13:30:16.532 INFO [stderr] | Dec 05 13:30:16.532 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 05 13:30:16.532 INFO [stderr] Dec 05 13:30:16.532 INFO [stderr] warning: unused import: `Cursor` Dec 05 13:30:16.532 INFO [stderr] --> src/lib.rs:5:28 Dec 05 13:30:16.532 INFO [stderr] | Dec 05 13:30:16.532 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Dec 05 13:30:16.532 INFO [stderr] | ^^^^^^ Dec 05 13:30:16.532 INFO [stderr] Dec 05 13:30:16.756 INFO [stderr] warning: unused variable: `left` Dec 05 13:30:16.756 INFO [stderr] --> src/lib.rs:171:26 Dec 05 13:30:16.756 INFO [stderr] | Dec 05 13:30:16.756 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:16.756 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Dec 05 13:30:16.756 INFO [stderr] | Dec 05 13:30:16.756 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 05 13:30:16.756 INFO [stderr] Dec 05 13:30:16.756 INFO [stderr] warning: unused variable: `right` Dec 05 13:30:16.756 INFO [stderr] --> src/lib.rs:171:36 Dec 05 13:30:16.756 INFO [stderr] | Dec 05 13:30:16.756 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:16.756 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Dec 05 13:30:16.756 INFO [stderr] Dec 05 13:30:16.756 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:16.756 INFO [stderr] --> src/lib.rs:172:22 Dec 05 13:30:16.756 INFO [stderr] | Dec 05 13:30:16.756 INFO [stderr] 172 | Leaf {count, value} => count Dec 05 13:30:16.756 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:16.756 INFO [stderr] Dec 05 13:30:16.756 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:16.756 INFO [stderr] --> src/lib.rs:178:15 Dec 05 13:30:16.756 INFO [stderr] | Dec 05 13:30:16.756 INFO [stderr] 178 | Node {count, ref left, ref right} => { Dec 05 13:30:16.756 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:16.757 INFO [stderr] Dec 05 13:30:16.757 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:16.757 INFO [stderr] --> src/lib.rs:235:19 Dec 05 13:30:16.757 INFO [stderr] | Dec 05 13:30:16.757 INFO [stderr] 235 | Leaf {count, value} => { Dec 05 13:30:16.757 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:16.757 INFO [stderr] Dec 05 13:30:16.757 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:16.757 INFO [stderr] --> src/lib.rs:240:19 Dec 05 13:30:16.757 INFO [stderr] | Dec 05 13:30:16.757 INFO [stderr] 240 | Node {count, ref left, ref right} => { Dec 05 13:30:16.757 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:16.757 INFO [stderr] Dec 05 13:30:16.765 INFO [stderr] warning: unused variable: `p` Dec 05 13:30:16.765 INFO [stderr] --> src/lib.rs:303:9 Dec 05 13:30:16.765 INFO [stderr] | Dec 05 13:30:16.765 INFO [stderr] 303 | let p = 97 as u8; Dec 05 13:30:16.765 INFO [stderr] | ^ help: consider using `_p` instead Dec 05 13:30:16.765 INFO [stderr] Dec 05 13:30:16.765 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:16.765 INFO [stderr] --> src/lib.rs:346:26 Dec 05 13:30:16.765 INFO [stderr] | Dec 05 13:30:16.765 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Dec 05 13:30:16.765 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:16.765 INFO [stderr] Dec 05 13:30:16.765 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:16.765 INFO [stderr] --> src/lib.rs:395:15 Dec 05 13:30:16.765 INFO [stderr] | Dec 05 13:30:16.765 INFO [stderr] 395 | Node {count, ref left, ref right} => { Dec 05 13:30:16.765 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:16.765 INFO [stderr] Dec 05 13:30:16.768 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:16.768 INFO [stderr] --> src/lib.rs:403:15 Dec 05 13:30:16.768 INFO [stderr] | Dec 05 13:30:16.768 INFO [stderr] 403 | Leaf {count, value} => { Dec 05 13:30:16.768 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:16.768 INFO [stderr] Dec 05 13:30:16.796 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:16.796 INFO [stderr] --> src/lib.rs:215:9 Dec 05 13:30:16.796 INFO [stderr] | Dec 05 13:30:16.796 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Dec 05 13:30:16.796 INFO [stderr] | ----^^^^ Dec 05 13:30:16.796 INFO [stderr] | | Dec 05 13:30:16.796 INFO [stderr] | help: remove this `mut` Dec 05 13:30:16.796 INFO [stderr] | Dec 05 13:30:16.796 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 05 13:30:16.796 INFO [stderr] Dec 05 13:30:16.812 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:16.812 INFO [stderr] --> src/lib.rs:300:9 Dec 05 13:30:16.812 INFO [stderr] | Dec 05 13:30:16.812 INFO [stderr] 300 | let mut tree = make_tree(v); Dec 05 13:30:16.812 INFO [stderr] | ----^^^^ Dec 05 13:30:16.812 INFO [stderr] | | Dec 05 13:30:16.812 INFO [stderr] | help: remove this `mut` Dec 05 13:30:16.812 INFO [stderr] Dec 05 13:30:16.812 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:16.812 INFO [stderr] --> src/lib.rs:350:9 Dec 05 13:30:16.812 INFO [stderr] | Dec 05 13:30:16.812 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Dec 05 13:30:16.812 INFO [stderr] | ----^^^ Dec 05 13:30:16.812 INFO [stderr] | | Dec 05 13:30:16.812 INFO [stderr] | help: remove this `mut` Dec 05 13:30:16.812 INFO [stderr] Dec 05 13:30:16.816 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:16.816 INFO [stderr] --> src/lib.rs:388:9 Dec 05 13:30:16.816 INFO [stderr] | Dec 05 13:30:16.816 INFO [stderr] 388 | let mut bits = BitString::new(); Dec 05 13:30:16.816 INFO [stderr] | ----^^^^ Dec 05 13:30:16.816 INFO [stderr] | | Dec 05 13:30:16.816 INFO [stderr] | help: remove this `mut` Dec 05 13:30:16.816 INFO [stderr] Dec 05 13:30:16.816 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:16.816 INFO [stderr] --> src/lib.rs:393:29 Dec 05 13:30:16.816 INFO [stderr] | Dec 05 13:30:16.816 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Dec 05 13:30:16.816 INFO [stderr] | ----^^^^ Dec 05 13:30:16.816 INFO [stderr] | | Dec 05 13:30:16.817 INFO [stderr] | help: remove this `mut` Dec 05 13:30:16.817 INFO [stderr] Dec 05 13:30:16.824 INFO [stderr] warning: function is never used: `byte_string` Dec 05 13:30:16.824 INFO [stderr] --> src/lib.rs:138:1 Dec 05 13:30:16.824 INFO [stderr] | Dec 05 13:30:16.824 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Dec 05 13:30:16.824 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:16.824 INFO [stderr] | Dec 05 13:30:16.824 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 05 13:30:16.824 INFO [stderr] Dec 05 13:30:16.824 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:16.824 INFO [stderr] --> src/lib.rs:104:9 Dec 05 13:30:16.824 INFO [stderr] | Dec 05 13:30:16.824 INFO [stderr] 104 | self.output.write(&a); Dec 05 13:30:16.824 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:16.824 INFO [stderr] | Dec 05 13:30:16.824 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 05 13:30:16.825 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:16.825 INFO [stderr] Dec 05 13:30:16.825 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:16.825 INFO [stderr] --> src/lib.rs:236:17 Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] 236 | output.write(&[value]); Dec 05 13:30:16.825 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:16.825 INFO [stderr] Dec 05 13:30:16.825 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:16.825 INFO [stderr] --> src/lib.rs:306:5 Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Dec 05 13:30:16.825 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:16.825 INFO [stderr] Dec 05 13:30:16.825 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:16.825 INFO [stderr] --> src/lib.rs:321:5 Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] 321 | output.write_all(&list_len_buf); Dec 05 13:30:16.825 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:16.825 INFO [stderr] Dec 05 13:30:16.825 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:16.825 INFO [stderr] --> src/lib.rs:334:17 Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] 334 | output.write_all(&buf); Dec 05 13:30:16.825 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:16.825 INFO [stderr] Dec 05 13:30:16.825 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:16.825 INFO [stderr] --> src/lib.rs:353:5 Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] 353 | output.write_all(&buf); Dec 05 13:30:16.825 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:16.825 INFO [stderr] | Dec 05 13:30:16.825 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:16.825 INFO [stderr] Dec 05 13:30:17.128 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.12s Dec 05 13:30:17.128 INFO [stderr] su: No module specific data is present Dec 05 13:30:17.906 INFO running `"docker" "inspect" "14896900282a0c86ff414673f89f8e79b8c28829241323335694b386382653f7"` Dec 05 13:30:18.174 INFO running `"docker" "rm" "-f" "14896900282a0c86ff414673f89f8e79b8c28829241323335694b386382653f7"` Dec 05 13:30:18.456 INFO [stdout] 14896900282a0c86ff414673f89f8e79b8c28829241323335694b386382653f7 Dec 05 13:30:18.458 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Dec 05 13:30:19.016 INFO [stdout] e4da9c921f867d589237739e3356d0519ca6f639ca22d892279bb71b8fe4ec36 Dec 05 13:30:19.024 INFO running `"docker" "start" "-a" "e4da9c921f867d589237739e3356d0519ca6f639ca22d892279bb71b8fe4ec36"` Dec 05 13:30:20.137 INFO [stderr] usermod: no changes Dec 05 13:30:20.192 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s Dec 05 13:30:20.192 INFO [stderr] Running /target/debug/deps/huffman_code-80d24d4f7b72b7f0 Dec 05 13:30:20.200 INFO [stdout] Dec 05 13:30:20.200 INFO [stdout] running 0 tests Dec 05 13:30:20.200 INFO [stdout] Dec 05 13:30:20.200 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 05 13:30:20.200 INFO [stdout] Dec 05 13:30:20.200 INFO [stdout] Dec 05 13:30:20.200 INFO [stdout] running 0 tests Dec 05 13:30:20.200 INFO [stdout] Dec 05 13:30:20.200 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 05 13:30:20.200 INFO [stdout] Dec 05 13:30:20.201 INFO [stderr] Running /target/debug/deps/huffman_code-8d6e2a69a4d8abbf Dec 05 13:30:20.201 INFO [stderr] Doc-tests huffman_code Dec 05 13:30:20.534 INFO [stdout] Dec 05 13:30:20.534 INFO [stdout] running 0 tests Dec 05 13:30:20.534 INFO [stdout] Dec 05 13:30:20.534 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 05 13:30:20.534 INFO [stdout] Dec 05 13:30:20.544 INFO [stderr] su: No module specific data is present Dec 05 13:30:21.686 INFO running `"docker" "inspect" "e4da9c921f867d589237739e3356d0519ca6f639ca22d892279bb71b8fe4ec36"` Dec 05 13:30:22.120 INFO running `"docker" "rm" "-f" "e4da9c921f867d589237739e3356d0519ca6f639ca22d892279bb71b8fe4ec36"` Dec 05 13:30:22.376 INFO [stdout] e4da9c921f867d589237739e3356d0519ca6f639ca22d892279bb71b8fe4ec36