Dec 05 13:30:12.192 INFO testing murphym18/huffman_code against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514 Dec 05 13:30:12.192 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 13:30:12.397 INFO [stdout] 51c2b489dd781bd1b8c799a42a1f548e24cee90ad1548c32b6dc69f4aac2cf7a Dec 05 13:30:12.401 INFO running `"docker" "start" "-a" "51c2b489dd781bd1b8c799a42a1f548e24cee90ad1548c32b6dc69f4aac2cf7a"` Dec 05 13:30:12.932 INFO [stderr] usermod: no changes Dec 05 13:30:12.961 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Dec 05 13:30:13.123 INFO [stderr] warning: unused import: `std::io` Dec 05 13:30:13.123 INFO [stderr] --> src/lib.rs:1:5 Dec 05 13:30:13.123 INFO [stderr] | Dec 05 13:30:13.123 INFO [stderr] 1 | use std::io; Dec 05 13:30:13.123 INFO [stderr] | ^^^^^^^ Dec 05 13:30:13.123 INFO [stderr] | Dec 05 13:30:13.123 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 05 13:30:13.123 INFO [stderr] Dec 05 13:30:13.123 INFO [stderr] warning: unused import: `Cursor` Dec 05 13:30:13.123 INFO [stderr] --> src/lib.rs:5:28 Dec 05 13:30:13.123 INFO [stderr] | Dec 05 13:30:13.123 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Dec 05 13:30:13.123 INFO [stderr] | ^^^^^^ Dec 05 13:30:13.123 INFO [stderr] Dec 05 13:30:13.248 INFO [stderr] warning: unused variable: `left` Dec 05 13:30:13.248 INFO [stderr] --> src/lib.rs:171:26 Dec 05 13:30:13.248 INFO [stderr] | Dec 05 13:30:13.248 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:13.248 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Dec 05 13:30:13.248 INFO [stderr] | Dec 05 13:30:13.248 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 05 13:30:13.248 INFO [stderr] Dec 05 13:30:13.248 INFO [stderr] warning: unused variable: `right` Dec 05 13:30:13.248 INFO [stderr] --> src/lib.rs:171:36 Dec 05 13:30:13.248 INFO [stderr] | Dec 05 13:30:13.248 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:13.248 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Dec 05 13:30:13.248 INFO [stderr] Dec 05 13:30:13.248 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:13.248 INFO [stderr] --> src/lib.rs:172:22 Dec 05 13:30:13.248 INFO [stderr] | Dec 05 13:30:13.248 INFO [stderr] 172 | Leaf {count, value} => count Dec 05 13:30:13.248 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:13.248 INFO [stderr] Dec 05 13:30:13.248 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.248 INFO [stderr] --> src/lib.rs:178:15 Dec 05 13:30:13.248 INFO [stderr] | Dec 05 13:30:13.248 INFO [stderr] 178 | Node {count, ref left, ref right} => { Dec 05 13:30:13.248 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.248 INFO [stderr] Dec 05 13:30:13.248 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.249 INFO [stderr] --> src/lib.rs:235:19 Dec 05 13:30:13.249 INFO [stderr] | Dec 05 13:30:13.249 INFO [stderr] 235 | Leaf {count, value} => { Dec 05 13:30:13.249 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.249 INFO [stderr] Dec 05 13:30:13.249 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.249 INFO [stderr] --> src/lib.rs:240:19 Dec 05 13:30:13.249 INFO [stderr] | Dec 05 13:30:13.249 INFO [stderr] 240 | Node {count, ref left, ref right} => { Dec 05 13:30:13.249 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.249 INFO [stderr] Dec 05 13:30:13.249 INFO [stderr] warning: unused variable: `p` Dec 05 13:30:13.249 INFO [stderr] --> src/lib.rs:303:9 Dec 05 13:30:13.249 INFO [stderr] | Dec 05 13:30:13.249 INFO [stderr] 303 | let p = 97 as u8; Dec 05 13:30:13.249 INFO [stderr] | ^ help: consider using `_p` instead Dec 05 13:30:13.249 INFO [stderr] Dec 05 13:30:13.249 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:13.249 INFO [stderr] --> src/lib.rs:346:26 Dec 05 13:30:13.249 INFO [stderr] | Dec 05 13:30:13.249 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Dec 05 13:30:13.249 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:13.249 INFO [stderr] Dec 05 13:30:13.249 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.249 INFO [stderr] --> src/lib.rs:395:15 Dec 05 13:30:13.249 INFO [stderr] | Dec 05 13:30:13.249 INFO [stderr] 395 | Node {count, ref left, ref right} => { Dec 05 13:30:13.249 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.249 INFO [stderr] Dec 05 13:30:13.249 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:13.249 INFO [stderr] --> src/lib.rs:403:15 Dec 05 13:30:13.249 INFO [stderr] | Dec 05 13:30:13.249 INFO [stderr] 403 | Leaf {count, value} => { Dec 05 13:30:13.249 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:13.249 INFO [stderr] Dec 05 13:30:13.259 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.259 INFO [stderr] --> src/lib.rs:215:9 Dec 05 13:30:13.259 INFO [stderr] | Dec 05 13:30:13.259 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Dec 05 13:30:13.259 INFO [stderr] | ----^^^^ Dec 05 13:30:13.259 INFO [stderr] | | Dec 05 13:30:13.259 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.259 INFO [stderr] | Dec 05 13:30:13.259 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 05 13:30:13.259 INFO [stderr] Dec 05 13:30:13.268 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.268 INFO [stderr] --> src/lib.rs:300:9 Dec 05 13:30:13.268 INFO [stderr] | Dec 05 13:30:13.268 INFO [stderr] 300 | let mut tree = make_tree(v); Dec 05 13:30:13.268 INFO [stderr] | ----^^^^ Dec 05 13:30:13.268 INFO [stderr] | | Dec 05 13:30:13.268 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.268 INFO [stderr] Dec 05 13:30:13.268 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.268 INFO [stderr] --> src/lib.rs:350:9 Dec 05 13:30:13.268 INFO [stderr] | Dec 05 13:30:13.268 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Dec 05 13:30:13.268 INFO [stderr] | ----^^^ Dec 05 13:30:13.268 INFO [stderr] | | Dec 05 13:30:13.268 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.268 INFO [stderr] Dec 05 13:30:13.268 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.268 INFO [stderr] --> src/lib.rs:388:9 Dec 05 13:30:13.268 INFO [stderr] | Dec 05 13:30:13.268 INFO [stderr] 388 | let mut bits = BitString::new(); Dec 05 13:30:13.268 INFO [stderr] | ----^^^^ Dec 05 13:30:13.268 INFO [stderr] | | Dec 05 13:30:13.268 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.268 INFO [stderr] Dec 05 13:30:13.269 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:13.269 INFO [stderr] --> src/lib.rs:393:29 Dec 05 13:30:13.269 INFO [stderr] | Dec 05 13:30:13.269 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Dec 05 13:30:13.269 INFO [stderr] | ----^^^^ Dec 05 13:30:13.269 INFO [stderr] | | Dec 05 13:30:13.269 INFO [stderr] | help: remove this `mut` Dec 05 13:30:13.269 INFO [stderr] Dec 05 13:30:13.276 INFO [stderr] warning: function is never used: `byte_string` Dec 05 13:30:13.276 INFO [stderr] --> src/lib.rs:138:1 Dec 05 13:30:13.276 INFO [stderr] | Dec 05 13:30:13.276 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Dec 05 13:30:13.276 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.276 INFO [stderr] | Dec 05 13:30:13.276 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 05 13:30:13.276 INFO [stderr] Dec 05 13:30:13.276 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.276 INFO [stderr] --> src/lib.rs:104:9 Dec 05 13:30:13.276 INFO [stderr] | Dec 05 13:30:13.276 INFO [stderr] 104 | self.output.write(&a); Dec 05 13:30:13.276 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.276 INFO [stderr] | Dec 05 13:30:13.276 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 05 13:30:13.276 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.276 INFO [stderr] Dec 05 13:30:13.277 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.277 INFO [stderr] --> src/lib.rs:236:17 Dec 05 13:30:13.277 INFO [stderr] | Dec 05 13:30:13.277 INFO [stderr] 236 | output.write(&[value]); Dec 05 13:30:13.277 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.277 INFO [stderr] | Dec 05 13:30:13.277 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.277 INFO [stderr] Dec 05 13:30:13.277 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.277 INFO [stderr] --> src/lib.rs:306:5 Dec 05 13:30:13.277 INFO [stderr] | Dec 05 13:30:13.277 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Dec 05 13:30:13.277 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.277 INFO [stderr] | Dec 05 13:30:13.277 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.277 INFO [stderr] Dec 05 13:30:13.277 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.277 INFO [stderr] --> src/lib.rs:321:5 Dec 05 13:30:13.277 INFO [stderr] | Dec 05 13:30:13.277 INFO [stderr] 321 | output.write_all(&list_len_buf); Dec 05 13:30:13.277 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.277 INFO [stderr] | Dec 05 13:30:13.277 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.277 INFO [stderr] Dec 05 13:30:13.280 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.280 INFO [stderr] --> src/lib.rs:334:17 Dec 05 13:30:13.280 INFO [stderr] | Dec 05 13:30:13.280 INFO [stderr] 334 | output.write_all(&buf); Dec 05 13:30:13.280 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.280 INFO [stderr] | Dec 05 13:30:13.280 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.280 INFO [stderr] Dec 05 13:30:13.280 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:13.280 INFO [stderr] --> src/lib.rs:353:5 Dec 05 13:30:13.280 INFO [stderr] | Dec 05 13:30:13.280 INFO [stderr] 353 | output.write_all(&buf); Dec 05 13:30:13.280 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:13.280 INFO [stderr] | Dec 05 13:30:13.280 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:13.280 INFO [stderr] Dec 05 13:30:14.180 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.22s Dec 05 13:30:14.180 INFO [stderr] su: No module specific data is present Dec 05 13:30:14.482 INFO running `"docker" "inspect" "51c2b489dd781bd1b8c799a42a1f548e24cee90ad1548c32b6dc69f4aac2cf7a"` Dec 05 13:30:14.634 INFO running `"docker" "rm" "-f" "51c2b489dd781bd1b8c799a42a1f548e24cee90ad1548c32b6dc69f4aac2cf7a"` Dec 05 13:30:14.859 INFO [stdout] 51c2b489dd781bd1b8c799a42a1f548e24cee90ad1548c32b6dc69f4aac2cf7a Dec 05 13:30:14.866 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 13:30:15.196 INFO [stdout] a52314ebfd0b1f171c77102f1755827b922abc942668534924a08fbfff98f341 Dec 05 13:30:15.198 INFO running `"docker" "start" "-a" "a52314ebfd0b1f171c77102f1755827b922abc942668534924a08fbfff98f341"` Dec 05 13:30:16.374 INFO [stderr] usermod: no changes Dec 05 13:30:16.420 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Dec 05 13:30:16.899 INFO [stderr] warning: unused import: `std::io` Dec 05 13:30:16.899 INFO [stderr] --> src/lib.rs:1:5 Dec 05 13:30:16.899 INFO [stderr] | Dec 05 13:30:16.900 INFO [stderr] 1 | use std::io; Dec 05 13:30:16.900 INFO [stderr] | ^^^^^^^ Dec 05 13:30:16.900 INFO [stderr] | Dec 05 13:30:16.900 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 05 13:30:16.900 INFO [stderr] Dec 05 13:30:16.900 INFO [stderr] warning: unused import: `Cursor` Dec 05 13:30:16.900 INFO [stderr] --> src/lib.rs:5:28 Dec 05 13:30:16.900 INFO [stderr] | Dec 05 13:30:16.900 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Dec 05 13:30:16.900 INFO [stderr] | ^^^^^^ Dec 05 13:30:16.900 INFO [stderr] Dec 05 13:30:17.048 INFO [stderr] warning: unused variable: `left` Dec 05 13:30:17.048 INFO [stderr] --> src/lib.rs:171:26 Dec 05 13:30:17.048 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:17.049 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `right` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:171:36 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:172:22 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 172 | Leaf {count, value} => count Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:178:15 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 178 | Node {count, ref left, ref right} => { Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:235:19 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 235 | Leaf {count, value} => { Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:240:19 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 240 | Node {count, ref left, ref right} => { Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `p` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:303:9 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 303 | let p = 97 as u8; Dec 05 13:30:17.049 INFO [stderr] | ^ help: consider using `_p` instead Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `value` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:346:26 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:395:15 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 395 | Node {count, ref left, ref right} => { Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.049 INFO [stderr] warning: unused variable: `count` Dec 05 13:30:17.049 INFO [stderr] --> src/lib.rs:403:15 Dec 05 13:30:17.049 INFO [stderr] | Dec 05 13:30:17.049 INFO [stderr] 403 | Leaf {count, value} => { Dec 05 13:30:17.049 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 05 13:30:17.049 INFO [stderr] Dec 05 13:30:17.072 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:17.072 INFO [stderr] --> src/lib.rs:215:9 Dec 05 13:30:17.072 INFO [stderr] | Dec 05 13:30:17.072 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Dec 05 13:30:17.072 INFO [stderr] | ----^^^^ Dec 05 13:30:17.072 INFO [stderr] | | Dec 05 13:30:17.072 INFO [stderr] | help: remove this `mut` Dec 05 13:30:17.072 INFO [stderr] | Dec 05 13:30:17.072 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 05 13:30:17.072 INFO [stderr] Dec 05 13:30:17.079 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:17.079 INFO [stderr] --> src/lib.rs:300:9 Dec 05 13:30:17.079 INFO [stderr] | Dec 05 13:30:17.079 INFO [stderr] 300 | let mut tree = make_tree(v); Dec 05 13:30:17.079 INFO [stderr] | ----^^^^ Dec 05 13:30:17.079 INFO [stderr] | | Dec 05 13:30:17.079 INFO [stderr] | help: remove this `mut` Dec 05 13:30:17.079 INFO [stderr] Dec 05 13:30:17.079 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:17.079 INFO [stderr] --> src/lib.rs:350:9 Dec 05 13:30:17.079 INFO [stderr] | Dec 05 13:30:17.079 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Dec 05 13:30:17.079 INFO [stderr] | ----^^^ Dec 05 13:30:17.079 INFO [stderr] | | Dec 05 13:30:17.079 INFO [stderr] | help: remove this `mut` Dec 05 13:30:17.080 INFO [stderr] Dec 05 13:30:17.080 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:17.080 INFO [stderr] --> src/lib.rs:388:9 Dec 05 13:30:17.080 INFO [stderr] | Dec 05 13:30:17.080 INFO [stderr] 388 | let mut bits = BitString::new(); Dec 05 13:30:17.080 INFO [stderr] | ----^^^^ Dec 05 13:30:17.080 INFO [stderr] | | Dec 05 13:30:17.080 INFO [stderr] | help: remove this `mut` Dec 05 13:30:17.080 INFO [stderr] Dec 05 13:30:17.088 INFO [stderr] warning: variable does not need to be mutable Dec 05 13:30:17.088 INFO [stderr] --> src/lib.rs:393:29 Dec 05 13:30:17.088 INFO [stderr] | Dec 05 13:30:17.088 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Dec 05 13:30:17.088 INFO [stderr] | ----^^^^ Dec 05 13:30:17.088 INFO [stderr] | | Dec 05 13:30:17.088 INFO [stderr] | help: remove this `mut` Dec 05 13:30:17.088 INFO [stderr] Dec 05 13:30:17.090 INFO [stderr] warning: function is never used: `byte_string` Dec 05 13:30:17.090 INFO [stderr] --> src/lib.rs:138:1 Dec 05 13:30:17.090 INFO [stderr] | Dec 05 13:30:17.090 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Dec 05 13:30:17.090 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:17.091 INFO [stderr] | Dec 05 13:30:17.091 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 05 13:30:17.091 INFO [stderr] Dec 05 13:30:17.096 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:17.096 INFO [stderr] --> src/lib.rs:104:9 Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] 104 | self.output.write(&a); Dec 05 13:30:17.096 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 05 13:30:17.096 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:17.096 INFO [stderr] Dec 05 13:30:17.096 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:17.096 INFO [stderr] --> src/lib.rs:236:17 Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] 236 | output.write(&[value]); Dec 05 13:30:17.096 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:17.096 INFO [stderr] Dec 05 13:30:17.096 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:17.096 INFO [stderr] --> src/lib.rs:306:5 Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Dec 05 13:30:17.096 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:17.096 INFO [stderr] Dec 05 13:30:17.096 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:17.096 INFO [stderr] --> src/lib.rs:321:5 Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] 321 | output.write_all(&list_len_buf); Dec 05 13:30:17.096 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:17.096 INFO [stderr] | Dec 05 13:30:17.096 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:17.096 INFO [stderr] Dec 05 13:30:17.096 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:17.096 INFO [stderr] --> src/lib.rs:334:17 Dec 05 13:30:17.097 INFO [stderr] | Dec 05 13:30:17.097 INFO [stderr] 334 | output.write_all(&buf); Dec 05 13:30:17.097 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:17.097 INFO [stderr] | Dec 05 13:30:17.097 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:17.097 INFO [stderr] Dec 05 13:30:17.097 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 05 13:30:17.097 INFO [stderr] --> src/lib.rs:353:5 Dec 05 13:30:17.097 INFO [stderr] | Dec 05 13:30:17.097 INFO [stderr] 353 | output.write_all(&buf); Dec 05 13:30:17.097 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 05 13:30:17.097 INFO [stderr] | Dec 05 13:30:17.097 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 05 13:30:17.097 INFO [stderr] Dec 05 13:30:17.426 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.02s Dec 05 13:30:17.429 INFO [stderr] su: No module specific data is present Dec 05 13:30:18.030 INFO running `"docker" "inspect" "a52314ebfd0b1f171c77102f1755827b922abc942668534924a08fbfff98f341"` Dec 05 13:30:18.270 INFO running `"docker" "rm" "-f" "a52314ebfd0b1f171c77102f1755827b922abc942668534924a08fbfff98f341"` Dec 05 13:30:18.516 INFO [stdout] a52314ebfd0b1f171c77102f1755827b922abc942668534924a08fbfff98f341 Dec 05 13:30:18.522 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 13:30:18.976 INFO [stdout] f98834acd8f9ca26014f4d7034848b0d9bfb811d0d8db2ef164f3c09562145bb Dec 05 13:30:18.982 INFO running `"docker" "start" "-a" "f98834acd8f9ca26014f4d7034848b0d9bfb811d0d8db2ef164f3c09562145bb"` Dec 05 13:30:19.809 INFO [stderr] usermod: no changes Dec 05 13:30:19.840 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s Dec 05 13:30:19.840 INFO [stderr] Running /target/debug/deps/huffman_code-9d4abeafac90adad Dec 05 13:30:19.850 INFO [stdout] Dec 05 13:30:19.850 INFO [stdout] running 0 tests Dec 05 13:30:19.850 INFO [stdout] Dec 05 13:30:19.850 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 05 13:30:19.850 INFO [stdout] Dec 05 13:30:19.860 INFO [stderr] Running /target/debug/deps/huffman_code-110e6c4aedbfb167 Dec 05 13:30:19.861 INFO [stdout] Dec 05 13:30:19.861 INFO [stdout] running 0 tests Dec 05 13:30:19.861 INFO [stdout] Dec 05 13:30:19.861 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 05 13:30:19.861 INFO [stdout] Dec 05 13:30:19.864 INFO [stderr] Doc-tests huffman_code Dec 05 13:30:20.214 INFO [stdout] Dec 05 13:30:20.214 INFO [stdout] running 0 tests Dec 05 13:30:20.214 INFO [stdout] Dec 05 13:30:20.214 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 05 13:30:20.214 INFO [stdout] Dec 05 13:30:20.236 INFO [stderr] su: No module specific data is present Dec 05 13:30:21.196 INFO running `"docker" "inspect" "f98834acd8f9ca26014f4d7034848b0d9bfb811d0d8db2ef164f3c09562145bb"` Dec 05 13:30:21.516 INFO running `"docker" "rm" "-f" "f98834acd8f9ca26014f4d7034848b0d9bfb811d0d8db2ef164f3c09562145bb"` Dec 05 13:30:21.748 INFO [stdout] f98834acd8f9ca26014f4d7034848b0d9bfb811d0d8db2ef164f3c09562145bb