Nov 16 18:48:28.193 INFO testing murphym18/huffman_code against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982 Nov 16 18:48:28.193 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"` Nov 16 18:48:28.714 INFO [stdout] 73d75c09159db69554a7748a61fcf3310c6e95d98b339443fff212e763f46d15 Nov 16 18:48:28.716 INFO running `"docker" "start" "-a" "73d75c09159db69554a7748a61fcf3310c6e95d98b339443fff212e763f46d15"` Nov 16 18:48:29.795 INFO [stderr] usermod: no changes Nov 16 18:48:29.854 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Nov 16 18:48:30.173 INFO [stderr] warning: unused import: `std::io` Nov 16 18:48:30.173 INFO [stderr] --> src/lib.rs:1:5 Nov 16 18:48:30.173 INFO [stderr] | Nov 16 18:48:30.173 INFO [stderr] 1 | use std::io; Nov 16 18:48:30.173 INFO [stderr] | ^^^^^^^ Nov 16 18:48:30.173 INFO [stderr] | Nov 16 18:48:30.173 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 16 18:48:30.173 INFO [stderr] Nov 16 18:48:30.173 INFO [stderr] warning: unused import: `Cursor` Nov 16 18:48:30.173 INFO [stderr] --> src/lib.rs:5:28 Nov 16 18:48:30.173 INFO [stderr] | Nov 16 18:48:30.173 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Nov 16 18:48:30.173 INFO [stderr] | ^^^^^^ Nov 16 18:48:30.173 INFO [stderr] Nov 16 18:48:30.355 INFO [stderr] warning: unused variable: `left` Nov 16 18:48:30.355 INFO [stderr] --> src/lib.rs:171:26 Nov 16 18:48:30.355 INFO [stderr] | Nov 16 18:48:30.355 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:30.355 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Nov 16 18:48:30.355 INFO [stderr] | Nov 16 18:48:30.355 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 16 18:48:30.355 INFO [stderr] Nov 16 18:48:30.355 INFO [stderr] warning: unused variable: `right` Nov 16 18:48:30.355 INFO [stderr] --> src/lib.rs:171:36 Nov 16 18:48:30.355 INFO [stderr] | Nov 16 18:48:30.355 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:30.355 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Nov 16 18:48:30.355 INFO [stderr] Nov 16 18:48:30.355 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:30.355 INFO [stderr] --> src/lib.rs:172:22 Nov 16 18:48:30.355 INFO [stderr] | Nov 16 18:48:30.355 INFO [stderr] 172 | Leaf {count, value} => count Nov 16 18:48:30.355 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:30.355 INFO [stderr] Nov 16 18:48:30.359 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:30.359 INFO [stderr] --> src/lib.rs:178:15 Nov 16 18:48:30.359 INFO [stderr] | Nov 16 18:48:30.359 INFO [stderr] 178 | Node {count, ref left, ref right} => { Nov 16 18:48:30.359 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:30.359 INFO [stderr] Nov 16 18:48:30.359 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:30.359 INFO [stderr] --> src/lib.rs:235:19 Nov 16 18:48:30.359 INFO [stderr] | Nov 16 18:48:30.359 INFO [stderr] 235 | Leaf {count, value} => { Nov 16 18:48:30.359 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:30.359 INFO [stderr] Nov 16 18:48:30.360 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:30.360 INFO [stderr] --> src/lib.rs:240:19 Nov 16 18:48:30.360 INFO [stderr] | Nov 16 18:48:30.360 INFO [stderr] 240 | Node {count, ref left, ref right} => { Nov 16 18:48:30.360 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:30.360 INFO [stderr] Nov 16 18:48:30.360 INFO [stderr] warning: unused variable: `p` Nov 16 18:48:30.360 INFO [stderr] --> src/lib.rs:303:9 Nov 16 18:48:30.360 INFO [stderr] | Nov 16 18:48:30.360 INFO [stderr] 303 | let p = 97 as u8; Nov 16 18:48:30.360 INFO [stderr] | ^ help: consider using `_p` instead Nov 16 18:48:30.360 INFO [stderr] Nov 16 18:48:30.360 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:30.360 INFO [stderr] --> src/lib.rs:346:26 Nov 16 18:48:30.360 INFO [stderr] | Nov 16 18:48:30.360 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Nov 16 18:48:30.360 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:30.360 INFO [stderr] Nov 16 18:48:30.360 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:30.360 INFO [stderr] --> src/lib.rs:395:15 Nov 16 18:48:30.360 INFO [stderr] | Nov 16 18:48:30.360 INFO [stderr] 395 | Node {count, ref left, ref right} => { Nov 16 18:48:30.360 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:30.360 INFO [stderr] Nov 16 18:48:30.360 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:30.360 INFO [stderr] --> src/lib.rs:403:15 Nov 16 18:48:30.360 INFO [stderr] | Nov 16 18:48:30.360 INFO [stderr] 403 | Leaf {count, value} => { Nov 16 18:48:30.360 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:30.360 INFO [stderr] Nov 16 18:48:30.375 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:30.375 INFO [stderr] --> src/lib.rs:215:9 Nov 16 18:48:30.375 INFO [stderr] | Nov 16 18:48:30.375 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Nov 16 18:48:30.375 INFO [stderr] | ----^^^^ Nov 16 18:48:30.375 INFO [stderr] | | Nov 16 18:48:30.375 INFO [stderr] | help: remove this `mut` Nov 16 18:48:30.375 INFO [stderr] | Nov 16 18:48:30.375 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 16 18:48:30.375 INFO [stderr] Nov 16 18:48:30.383 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:30.383 INFO [stderr] --> src/lib.rs:300:9 Nov 16 18:48:30.384 INFO [stderr] | Nov 16 18:48:30.384 INFO [stderr] 300 | let mut tree = make_tree(v); Nov 16 18:48:30.384 INFO [stderr] | ----^^^^ Nov 16 18:48:30.384 INFO [stderr] | | Nov 16 18:48:30.384 INFO [stderr] | help: remove this `mut` Nov 16 18:48:30.384 INFO [stderr] Nov 16 18:48:30.385 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:30.385 INFO [stderr] --> src/lib.rs:350:9 Nov 16 18:48:30.385 INFO [stderr] | Nov 16 18:48:30.385 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Nov 16 18:48:30.385 INFO [stderr] | ----^^^ Nov 16 18:48:30.385 INFO [stderr] | | Nov 16 18:48:30.386 INFO [stderr] | help: remove this `mut` Nov 16 18:48:30.386 INFO [stderr] Nov 16 18:48:30.386 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:30.386 INFO [stderr] --> src/lib.rs:388:9 Nov 16 18:48:30.386 INFO [stderr] | Nov 16 18:48:30.387 INFO [stderr] 388 | let mut bits = BitString::new(); Nov 16 18:48:30.387 INFO [stderr] | ----^^^^ Nov 16 18:48:30.387 INFO [stderr] | | Nov 16 18:48:30.387 INFO [stderr] | help: remove this `mut` Nov 16 18:48:30.387 INFO [stderr] Nov 16 18:48:30.388 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:30.388 INFO [stderr] --> src/lib.rs:393:29 Nov 16 18:48:30.388 INFO [stderr] | Nov 16 18:48:30.388 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Nov 16 18:48:30.388 INFO [stderr] | ----^^^^ Nov 16 18:48:30.388 INFO [stderr] | | Nov 16 18:48:30.389 INFO [stderr] | help: remove this `mut` Nov 16 18:48:30.389 INFO [stderr] Nov 16 18:48:30.399 INFO [stderr] warning: function is never used: `byte_string` Nov 16 18:48:30.399 INFO [stderr] --> src/lib.rs:138:1 Nov 16 18:48:30.399 INFO [stderr] | Nov 16 18:48:30.399 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Nov 16 18:48:30.400 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:30.400 INFO [stderr] | Nov 16 18:48:30.400 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 16 18:48:30.400 INFO [stderr] Nov 16 18:48:30.400 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:30.401 INFO [stderr] --> src/lib.rs:104:9 Nov 16 18:48:30.401 INFO [stderr] | Nov 16 18:48:30.401 INFO [stderr] 104 | self.output.write(&a); Nov 16 18:48:30.401 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:30.401 INFO [stderr] | Nov 16 18:48:30.401 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 16 18:48:30.402 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:30.402 INFO [stderr] Nov 16 18:48:30.402 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:30.402 INFO [stderr] --> src/lib.rs:236:17 Nov 16 18:48:30.402 INFO [stderr] | Nov 16 18:48:30.403 INFO [stderr] 236 | output.write(&[value]); Nov 16 18:48:30.403 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:30.403 INFO [stderr] | Nov 16 18:48:30.403 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:30.403 INFO [stderr] Nov 16 18:48:30.403 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:30.404 INFO [stderr] --> src/lib.rs:306:5 Nov 16 18:48:30.404 INFO [stderr] | Nov 16 18:48:30.404 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Nov 16 18:48:30.404 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:30.404 INFO [stderr] | Nov 16 18:48:30.405 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:30.405 INFO [stderr] Nov 16 18:48:30.405 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:30.405 INFO [stderr] --> src/lib.rs:321:5 Nov 16 18:48:30.405 INFO [stderr] | Nov 16 18:48:30.406 INFO [stderr] 321 | output.write_all(&list_len_buf); Nov 16 18:48:30.406 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:30.406 INFO [stderr] | Nov 16 18:48:30.406 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:30.406 INFO [stderr] Nov 16 18:48:30.406 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:30.407 INFO [stderr] --> src/lib.rs:334:17 Nov 16 18:48:30.407 INFO [stderr] | Nov 16 18:48:30.407 INFO [stderr] 334 | output.write_all(&buf); Nov 16 18:48:30.407 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:30.407 INFO [stderr] | Nov 16 18:48:30.408 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:30.408 INFO [stderr] Nov 16 18:48:30.408 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:30.408 INFO [stderr] --> src/lib.rs:353:5 Nov 16 18:48:30.408 INFO [stderr] | Nov 16 18:48:30.408 INFO [stderr] 353 | output.write_all(&buf); Nov 16 18:48:30.409 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:30.409 INFO [stderr] | Nov 16 18:48:30.409 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:30.409 INFO [stderr] Nov 16 18:48:31.923 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.10s Nov 16 18:48:31.923 INFO [stderr] su: No module specific data is present Nov 16 18:48:32.712 INFO running `"docker" "inspect" "73d75c09159db69554a7748a61fcf3310c6e95d98b339443fff212e763f46d15"` Nov 16 18:48:32.977 INFO running `"docker" "rm" "-f" "73d75c09159db69554a7748a61fcf3310c6e95d98b339443fff212e763f46d15"` Nov 16 18:48:33.387 INFO [stdout] 73d75c09159db69554a7748a61fcf3310c6e95d98b339443fff212e763f46d15 Nov 16 18:48:33.393 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"` Nov 16 18:48:33.771 INFO [stdout] ef0c2b35ad302c04c35ca3ae1c77318dd86d8be9fc127bb903011abec283d10f Nov 16 18:48:33.779 INFO running `"docker" "start" "-a" "ef0c2b35ad302c04c35ca3ae1c77318dd86d8be9fc127bb903011abec283d10f"` Nov 16 18:48:35.051 INFO [stderr] usermod: no changes Nov 16 18:48:35.139 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Nov 16 18:48:35.747 INFO [stderr] warning: unused import: `std::io` Nov 16 18:48:35.747 INFO [stderr] --> src/lib.rs:1:5 Nov 16 18:48:35.747 INFO [stderr] | Nov 16 18:48:35.747 INFO [stderr] 1 | use std::io; Nov 16 18:48:35.747 INFO [stderr] | ^^^^^^^ Nov 16 18:48:35.747 INFO [stderr] | Nov 16 18:48:35.747 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 16 18:48:35.747 INFO [stderr] Nov 16 18:48:35.747 INFO [stderr] warning: unused import: `Cursor` Nov 16 18:48:35.747 INFO [stderr] --> src/lib.rs:5:28 Nov 16 18:48:35.747 INFO [stderr] | Nov 16 18:48:35.747 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Nov 16 18:48:35.747 INFO [stderr] | ^^^^^^ Nov 16 18:48:35.747 INFO [stderr] Nov 16 18:48:36.035 INFO [stderr] warning: unused variable: `left` Nov 16 18:48:36.035 INFO [stderr] --> src/lib.rs:171:26 Nov 16 18:48:36.035 INFO [stderr] | Nov 16 18:48:36.035 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:36.035 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Nov 16 18:48:36.035 INFO [stderr] | Nov 16 18:48:36.035 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 16 18:48:36.035 INFO [stderr] Nov 16 18:48:36.035 INFO [stderr] warning: unused variable: `right` Nov 16 18:48:36.035 INFO [stderr] --> src/lib.rs:171:36 Nov 16 18:48:36.035 INFO [stderr] | Nov 16 18:48:36.035 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:36.035 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Nov 16 18:48:36.035 INFO [stderr] Nov 16 18:48:36.035 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:36.035 INFO [stderr] --> src/lib.rs:172:22 Nov 16 18:48:36.035 INFO [stderr] | Nov 16 18:48:36.035 INFO [stderr] 172 | Leaf {count, value} => count Nov 16 18:48:36.035 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:36.035 INFO [stderr] Nov 16 18:48:36.036 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:36.036 INFO [stderr] --> src/lib.rs:178:15 Nov 16 18:48:36.036 INFO [stderr] | Nov 16 18:48:36.036 INFO [stderr] 178 | Node {count, ref left, ref right} => { Nov 16 18:48:36.036 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:36.036 INFO [stderr] Nov 16 18:48:36.036 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:36.036 INFO [stderr] --> src/lib.rs:235:19 Nov 16 18:48:36.036 INFO [stderr] | Nov 16 18:48:36.036 INFO [stderr] 235 | Leaf {count, value} => { Nov 16 18:48:36.036 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:36.036 INFO [stderr] Nov 16 18:48:36.036 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:36.036 INFO [stderr] --> src/lib.rs:240:19 Nov 16 18:48:36.036 INFO [stderr] | Nov 16 18:48:36.036 INFO [stderr] 240 | Node {count, ref left, ref right} => { Nov 16 18:48:36.036 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:36.036 INFO [stderr] Nov 16 18:48:36.036 INFO [stderr] warning: unused variable: `p` Nov 16 18:48:36.036 INFO [stderr] --> src/lib.rs:303:9 Nov 16 18:48:36.036 INFO [stderr] | Nov 16 18:48:36.036 INFO [stderr] 303 | let p = 97 as u8; Nov 16 18:48:36.036 INFO [stderr] | ^ help: consider using `_p` instead Nov 16 18:48:36.036 INFO [stderr] Nov 16 18:48:36.036 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:36.036 INFO [stderr] --> src/lib.rs:346:26 Nov 16 18:48:36.036 INFO [stderr] | Nov 16 18:48:36.036 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Nov 16 18:48:36.036 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:36.036 INFO [stderr] Nov 16 18:48:36.036 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:36.036 INFO [stderr] --> src/lib.rs:395:15 Nov 16 18:48:36.036 INFO [stderr] | Nov 16 18:48:36.036 INFO [stderr] 395 | Node {count, ref left, ref right} => { Nov 16 18:48:36.036 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:36.036 INFO [stderr] Nov 16 18:48:36.036 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:36.036 INFO [stderr] --> src/lib.rs:403:15 Nov 16 18:48:36.036 INFO [stderr] | Nov 16 18:48:36.036 INFO [stderr] 403 | Leaf {count, value} => { Nov 16 18:48:36.036 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:36.036 INFO [stderr] Nov 16 18:48:36.069 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:36.069 INFO [stderr] --> src/lib.rs:215:9 Nov 16 18:48:36.069 INFO [stderr] | Nov 16 18:48:36.069 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Nov 16 18:48:36.069 INFO [stderr] | ----^^^^ Nov 16 18:48:36.069 INFO [stderr] | | Nov 16 18:48:36.069 INFO [stderr] | help: remove this `mut` Nov 16 18:48:36.069 INFO [stderr] | Nov 16 18:48:36.069 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 16 18:48:36.069 INFO [stderr] Nov 16 18:48:36.085 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:36.085 INFO [stderr] --> src/lib.rs:300:9 Nov 16 18:48:36.085 INFO [stderr] | Nov 16 18:48:36.085 INFO [stderr] 300 | let mut tree = make_tree(v); Nov 16 18:48:36.085 INFO [stderr] | ----^^^^ Nov 16 18:48:36.085 INFO [stderr] | | Nov 16 18:48:36.085 INFO [stderr] | help: remove this `mut` Nov 16 18:48:36.085 INFO [stderr] Nov 16 18:48:36.085 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:36.085 INFO [stderr] --> src/lib.rs:350:9 Nov 16 18:48:36.085 INFO [stderr] | Nov 16 18:48:36.085 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Nov 16 18:48:36.085 INFO [stderr] | ----^^^ Nov 16 18:48:36.085 INFO [stderr] | | Nov 16 18:48:36.085 INFO [stderr] | help: remove this `mut` Nov 16 18:48:36.085 INFO [stderr] Nov 16 18:48:36.091 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:36.091 INFO [stderr] --> src/lib.rs:388:9 Nov 16 18:48:36.091 INFO [stderr] | Nov 16 18:48:36.091 INFO [stderr] 388 | let mut bits = BitString::new(); Nov 16 18:48:36.091 INFO [stderr] | ----^^^^ Nov 16 18:48:36.091 INFO [stderr] | | Nov 16 18:48:36.091 INFO [stderr] | help: remove this `mut` Nov 16 18:48:36.091 INFO [stderr] Nov 16 18:48:36.095 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:36.095 INFO [stderr] --> src/lib.rs:393:29 Nov 16 18:48:36.095 INFO [stderr] | Nov 16 18:48:36.095 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Nov 16 18:48:36.095 INFO [stderr] | ----^^^^ Nov 16 18:48:36.095 INFO [stderr] | | Nov 16 18:48:36.095 INFO [stderr] | help: remove this `mut` Nov 16 18:48:36.095 INFO [stderr] Nov 16 18:48:36.107 INFO [stderr] warning: function is never used: `byte_string` Nov 16 18:48:36.107 INFO [stderr] --> src/lib.rs:138:1 Nov 16 18:48:36.107 INFO [stderr] | Nov 16 18:48:36.107 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Nov 16 18:48:36.107 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:36.107 INFO [stderr] | Nov 16 18:48:36.107 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 16 18:48:36.107 INFO [stderr] Nov 16 18:48:36.111 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:36.111 INFO [stderr] --> src/lib.rs:104:9 Nov 16 18:48:36.111 INFO [stderr] | Nov 16 18:48:36.111 INFO [stderr] 104 | self.output.write(&a); Nov 16 18:48:36.111 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:36.111 INFO [stderr] | Nov 16 18:48:36.111 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 16 18:48:36.111 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:36.111 INFO [stderr] Nov 16 18:48:36.127 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:36.127 INFO [stderr] --> src/lib.rs:236:17 Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] 236 | output.write(&[value]); Nov 16 18:48:36.128 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:36.128 INFO [stderr] Nov 16 18:48:36.128 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:36.128 INFO [stderr] --> src/lib.rs:306:5 Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Nov 16 18:48:36.128 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:36.128 INFO [stderr] Nov 16 18:48:36.128 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:36.128 INFO [stderr] --> src/lib.rs:321:5 Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] 321 | output.write_all(&list_len_buf); Nov 16 18:48:36.128 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:36.128 INFO [stderr] Nov 16 18:48:36.128 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:36.128 INFO [stderr] --> src/lib.rs:334:17 Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] 334 | output.write_all(&buf); Nov 16 18:48:36.128 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:36.128 INFO [stderr] Nov 16 18:48:36.128 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:36.128 INFO [stderr] --> src/lib.rs:353:5 Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] 353 | output.write_all(&buf); Nov 16 18:48:36.128 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:36.128 INFO [stderr] | Nov 16 18:48:36.128 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:36.128 INFO [stderr] Nov 16 18:48:36.637 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.54s Nov 16 18:48:36.647 INFO [stderr] su: No module specific data is present Nov 16 18:48:37.571 INFO running `"docker" "inspect" "ef0c2b35ad302c04c35ca3ae1c77318dd86d8be9fc127bb903011abec283d10f"` Nov 16 18:48:37.793 INFO running `"docker" "rm" "-f" "ef0c2b35ad302c04c35ca3ae1c77318dd86d8be9fc127bb903011abec283d10f"` Nov 16 18:48:38.032 INFO [stdout] ef0c2b35ad302c04c35ca3ae1c77318dd86d8be9fc127bb903011abec283d10f Nov 16 18:48:38.037 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"` Nov 16 18:48:38.484 INFO [stdout] 74243103694e52fe270c0d86c0cb8970cc25d72b0ff811e8159a4f3d0c899bba Nov 16 18:48:38.486 INFO running `"docker" "start" "-a" "74243103694e52fe270c0d86c0cb8970cc25d72b0ff811e8159a4f3d0c899bba"` Nov 16 18:48:40.489 INFO [stderr] usermod: no changes Nov 16 18:48:40.552 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s Nov 16 18:48:40.552 INFO [stderr] Running /target/debug/deps/huffman_code-76c6d1a5f108f758 Nov 16 18:48:40.559 INFO [stderr] Running /target/debug/deps/huffman_code-d69a7aa3bcf6d719 Nov 16 18:48:40.559 INFO [stdout] Nov 16 18:48:40.559 INFO [stdout] running 0 tests Nov 16 18:48:40.559 INFO [stdout] Nov 16 18:48:40.559 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 16 18:48:40.559 INFO [stdout] Nov 16 18:48:40.567 INFO [stdout] Nov 16 18:48:40.567 INFO [stdout] running 0 tests Nov 16 18:48:40.567 INFO [stdout] Nov 16 18:48:40.567 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 16 18:48:40.567 INFO [stdout] Nov 16 18:48:40.567 INFO [stderr] Doc-tests huffman_code Nov 16 18:48:41.012 INFO [stdout] Nov 16 18:48:41.012 INFO [stdout] running 0 tests Nov 16 18:48:41.012 INFO [stdout] Nov 16 18:48:41.012 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 16 18:48:41.012 INFO [stdout] Nov 16 18:48:41.015 INFO [stderr] su: No module specific data is present Nov 16 18:48:42.303 INFO running `"docker" "inspect" "74243103694e52fe270c0d86c0cb8970cc25d72b0ff811e8159a4f3d0c899bba"` Nov 16 18:48:42.541 INFO running `"docker" "rm" "-f" "74243103694e52fe270c0d86c0cb8970cc25d72b0ff811e8159a4f3d0c899bba"` Nov 16 18:48:42.887 INFO [stdout] 74243103694e52fe270c0d86c0cb8970cc25d72b0ff811e8159a4f3d0c899bba