Nov 16 18:48:29.500 INFO testing murphym18/huffman_code against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982 Nov 16 18:48:29.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 18:48:29.897 INFO [stdout] 852f9360666601514faf8111071770427053718c6fd04ebe0f63a9070b628408 Nov 16 18:48:29.900 INFO running `"docker" "start" "-a" "852f9360666601514faf8111071770427053718c6fd04ebe0f63a9070b628408"` Nov 16 18:48:31.102 INFO [stderr] usermod: no changes Nov 16 18:48:31.211 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Nov 16 18:48:31.539 INFO [stderr] warning: unused import: `std::io` Nov 16 18:48:31.539 INFO [stderr] --> src/lib.rs:1:5 Nov 16 18:48:31.539 INFO [stderr] | Nov 16 18:48:31.539 INFO [stderr] 1 | use std::io; Nov 16 18:48:31.539 INFO [stderr] | ^^^^^^^ Nov 16 18:48:31.539 INFO [stderr] | Nov 16 18:48:31.539 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 16 18:48:31.539 INFO [stderr] Nov 16 18:48:31.539 INFO [stderr] warning: unused import: `Cursor` Nov 16 18:48:31.539 INFO [stderr] --> src/lib.rs:5:28 Nov 16 18:48:31.539 INFO [stderr] | Nov 16 18:48:31.539 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Nov 16 18:48:31.539 INFO [stderr] | ^^^^^^ Nov 16 18:48:31.539 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `left` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:171:26 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:31.683 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 16 18:48:31.683 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `right` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:171:36 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:31.683 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Nov 16 18:48:31.683 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:172:22 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 172 | Leaf {count, value} => count Nov 16 18:48:31.683 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:31.683 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:178:15 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 178 | Node {count, ref left, ref right} => { Nov 16 18:48:31.683 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:31.683 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:235:19 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 235 | Leaf {count, value} => { Nov 16 18:48:31.683 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:31.683 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:240:19 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 240 | Node {count, ref left, ref right} => { Nov 16 18:48:31.683 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:31.683 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `p` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:303:9 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 303 | let p = 97 as u8; Nov 16 18:48:31.683 INFO [stderr] | ^ help: consider using `_p` instead Nov 16 18:48:31.683 INFO [stderr] Nov 16 18:48:31.683 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:31.683 INFO [stderr] --> src/lib.rs:346:26 Nov 16 18:48:31.683 INFO [stderr] | Nov 16 18:48:31.683 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Nov 16 18:48:31.683 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:31.693 INFO [stderr] Nov 16 18:48:31.693 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:31.693 INFO [stderr] --> src/lib.rs:395:15 Nov 16 18:48:31.693 INFO [stderr] | Nov 16 18:48:31.693 INFO [stderr] 395 | Node {count, ref left, ref right} => { Nov 16 18:48:31.693 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:31.693 INFO [stderr] Nov 16 18:48:31.693 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:31.693 INFO [stderr] --> src/lib.rs:403:15 Nov 16 18:48:31.693 INFO [stderr] | Nov 16 18:48:31.693 INFO [stderr] 403 | Leaf {count, value} => { Nov 16 18:48:31.693 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:31.693 INFO [stderr] Nov 16 18:48:31.711 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:31.711 INFO [stderr] --> src/lib.rs:215:9 Nov 16 18:48:31.711 INFO [stderr] | Nov 16 18:48:31.711 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Nov 16 18:48:31.711 INFO [stderr] | ----^^^^ Nov 16 18:48:31.711 INFO [stderr] | | Nov 16 18:48:31.711 INFO [stderr] | help: remove this `mut` Nov 16 18:48:31.711 INFO [stderr] | Nov 16 18:48:31.711 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 16 18:48:31.711 INFO [stderr] Nov 16 18:48:31.719 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:31.719 INFO [stderr] --> src/lib.rs:300:9 Nov 16 18:48:31.719 INFO [stderr] | Nov 16 18:48:31.719 INFO [stderr] 300 | let mut tree = make_tree(v); Nov 16 18:48:31.719 INFO [stderr] | ----^^^^ Nov 16 18:48:31.719 INFO [stderr] | | Nov 16 18:48:31.719 INFO [stderr] | help: remove this `mut` Nov 16 18:48:31.719 INFO [stderr] Nov 16 18:48:31.719 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:31.719 INFO [stderr] --> src/lib.rs:350:9 Nov 16 18:48:31.719 INFO [stderr] | Nov 16 18:48:31.719 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Nov 16 18:48:31.719 INFO [stderr] | ----^^^ Nov 16 18:48:31.719 INFO [stderr] | | Nov 16 18:48:31.719 INFO [stderr] | help: remove this `mut` Nov 16 18:48:31.719 INFO [stderr] Nov 16 18:48:31.719 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:31.719 INFO [stderr] --> src/lib.rs:388:9 Nov 16 18:48:31.719 INFO [stderr] | Nov 16 18:48:31.719 INFO [stderr] 388 | let mut bits = BitString::new(); Nov 16 18:48:31.719 INFO [stderr] | ----^^^^ Nov 16 18:48:31.719 INFO [stderr] | | Nov 16 18:48:31.719 INFO [stderr] | help: remove this `mut` Nov 16 18:48:31.719 INFO [stderr] Nov 16 18:48:31.723 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:31.723 INFO [stderr] --> src/lib.rs:393:29 Nov 16 18:48:31.723 INFO [stderr] | Nov 16 18:48:31.723 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Nov 16 18:48:31.723 INFO [stderr] | ----^^^^ Nov 16 18:48:31.723 INFO [stderr] | | Nov 16 18:48:31.723 INFO [stderr] | help: remove this `mut` Nov 16 18:48:31.723 INFO [stderr] Nov 16 18:48:31.731 INFO [stderr] warning: function is never used: `byte_string` Nov 16 18:48:31.731 INFO [stderr] --> src/lib.rs:138:1 Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Nov 16 18:48:31.731 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 16 18:48:31.731 INFO [stderr] Nov 16 18:48:31.731 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:31.731 INFO [stderr] --> src/lib.rs:104:9 Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] 104 | self.output.write(&a); Nov 16 18:48:31.731 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 16 18:48:31.731 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:31.731 INFO [stderr] Nov 16 18:48:31.731 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:31.731 INFO [stderr] --> src/lib.rs:236:17 Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] 236 | output.write(&[value]); Nov 16 18:48:31.731 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:31.731 INFO [stderr] Nov 16 18:48:31.731 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:31.731 INFO [stderr] --> src/lib.rs:306:5 Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Nov 16 18:48:31.731 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:31.731 INFO [stderr] Nov 16 18:48:31.731 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:31.731 INFO [stderr] --> src/lib.rs:321:5 Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] 321 | output.write_all(&list_len_buf); Nov 16 18:48:31.731 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:31.731 INFO [stderr] Nov 16 18:48:31.731 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:31.731 INFO [stderr] --> src/lib.rs:334:17 Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] 334 | output.write_all(&buf); Nov 16 18:48:31.731 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:31.731 INFO [stderr] Nov 16 18:48:31.731 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:31.731 INFO [stderr] --> src/lib.rs:353:5 Nov 16 18:48:31.731 INFO [stderr] | Nov 16 18:48:31.731 INFO [stderr] 353 | output.write_all(&buf); Nov 16 18:48:31.732 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:31.732 INFO [stderr] | Nov 16 18:48:31.732 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:31.732 INFO [stderr] Nov 16 18:48:33.035 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.90s Nov 16 18:48:33.035 INFO [stderr] su: No module specific data is present Nov 16 18:48:33.912 INFO running `"docker" "inspect" "852f9360666601514faf8111071770427053718c6fd04ebe0f63a9070b628408"` Nov 16 18:48:34.243 INFO running `"docker" "rm" "-f" "852f9360666601514faf8111071770427053718c6fd04ebe0f63a9070b628408"` Nov 16 18:48:34.610 INFO [stdout] 852f9360666601514faf8111071770427053718c6fd04ebe0f63a9070b628408 Nov 16 18:48:34.614 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 18:48:35.159 INFO [stdout] 577f9bf92f42f0bf5768450e0c078b68c808dc4d74a71120374a48e0f0efcb62 Nov 16 18:48:35.171 INFO running `"docker" "start" "-a" "577f9bf92f42f0bf5768450e0c078b68c808dc4d74a71120374a48e0f0efcb62"` Nov 16 18:48:36.923 INFO [stderr] usermod: no changes Nov 16 18:48:36.991 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Nov 16 18:48:37.491 INFO [stderr] warning: unused import: `std::io` Nov 16 18:48:37.491 INFO [stderr] --> src/lib.rs:1:5 Nov 16 18:48:37.491 INFO [stderr] | Nov 16 18:48:37.491 INFO [stderr] 1 | use std::io; Nov 16 18:48:37.492 INFO [stderr] | ^^^^^^^ Nov 16 18:48:37.492 INFO [stderr] | Nov 16 18:48:37.492 INFO [stderr] = note: #[warn(unused_imports)] on by default Nov 16 18:48:37.492 INFO [stderr] Nov 16 18:48:37.498 INFO [stderr] warning: unused import: `Cursor` Nov 16 18:48:37.498 INFO [stderr] --> src/lib.rs:5:28 Nov 16 18:48:37.498 INFO [stderr] | Nov 16 18:48:37.498 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Nov 16 18:48:37.498 INFO [stderr] | ^^^^^^ Nov 16 18:48:37.498 INFO [stderr] Nov 16 18:48:37.986 INFO [stderr] warning: unused variable: `left` Nov 16 18:48:37.986 INFO [stderr] --> src/lib.rs:171:26 Nov 16 18:48:37.986 INFO [stderr] | Nov 16 18:48:37.986 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:37.986 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Nov 16 18:48:37.986 INFO [stderr] | Nov 16 18:48:37.986 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 16 18:48:37.986 INFO [stderr] Nov 16 18:48:37.986 INFO [stderr] warning: unused variable: `right` Nov 16 18:48:37.986 INFO [stderr] --> src/lib.rs:171:36 Nov 16 18:48:37.986 INFO [stderr] | Nov 16 18:48:37.986 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Nov 16 18:48:37.986 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Nov 16 18:48:37.986 INFO [stderr] Nov 16 18:48:37.989 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:37.989 INFO [stderr] --> src/lib.rs:172:22 Nov 16 18:48:37.989 INFO [stderr] | Nov 16 18:48:37.989 INFO [stderr] 172 | Leaf {count, value} => count Nov 16 18:48:37.989 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:37.989 INFO [stderr] Nov 16 18:48:37.989 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:37.989 INFO [stderr] --> src/lib.rs:178:15 Nov 16 18:48:37.989 INFO [stderr] | Nov 16 18:48:37.989 INFO [stderr] 178 | Node {count, ref left, ref right} => { Nov 16 18:48:37.989 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:37.989 INFO [stderr] Nov 16 18:48:37.989 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:37.989 INFO [stderr] --> src/lib.rs:235:19 Nov 16 18:48:37.989 INFO [stderr] | Nov 16 18:48:37.989 INFO [stderr] 235 | Leaf {count, value} => { Nov 16 18:48:37.989 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:37.989 INFO [stderr] Nov 16 18:48:37.989 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:37.989 INFO [stderr] --> src/lib.rs:240:19 Nov 16 18:48:37.989 INFO [stderr] | Nov 16 18:48:37.989 INFO [stderr] 240 | Node {count, ref left, ref right} => { Nov 16 18:48:37.989 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:37.989 INFO [stderr] Nov 16 18:48:37.989 INFO [stderr] warning: unused variable: `p` Nov 16 18:48:37.989 INFO [stderr] --> src/lib.rs:303:9 Nov 16 18:48:37.989 INFO [stderr] | Nov 16 18:48:37.989 INFO [stderr] 303 | let p = 97 as u8; Nov 16 18:48:37.989 INFO [stderr] | ^ help: consider using `_p` instead Nov 16 18:48:37.990 INFO [stderr] Nov 16 18:48:37.990 INFO [stderr] warning: unused variable: `value` Nov 16 18:48:37.990 INFO [stderr] --> src/lib.rs:346:26 Nov 16 18:48:37.990 INFO [stderr] | Nov 16 18:48:37.990 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Nov 16 18:48:37.990 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Nov 16 18:48:37.990 INFO [stderr] Nov 16 18:48:37.990 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:37.990 INFO [stderr] --> src/lib.rs:395:15 Nov 16 18:48:37.990 INFO [stderr] | Nov 16 18:48:37.990 INFO [stderr] 395 | Node {count, ref left, ref right} => { Nov 16 18:48:37.990 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:37.990 INFO [stderr] Nov 16 18:48:37.990 INFO [stderr] warning: unused variable: `count` Nov 16 18:48:37.990 INFO [stderr] --> src/lib.rs:403:15 Nov 16 18:48:37.990 INFO [stderr] | Nov 16 18:48:37.990 INFO [stderr] 403 | Leaf {count, value} => { Nov 16 18:48:37.990 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Nov 16 18:48:37.990 INFO [stderr] Nov 16 18:48:38.015 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:38.015 INFO [stderr] --> src/lib.rs:215:9 Nov 16 18:48:38.015 INFO [stderr] | Nov 16 18:48:38.015 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Nov 16 18:48:38.016 INFO [stderr] | ----^^^^ Nov 16 18:48:38.016 INFO [stderr] | | Nov 16 18:48:38.016 INFO [stderr] | help: remove this `mut` Nov 16 18:48:38.019 INFO [stderr] | Nov 16 18:48:38.023 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 16 18:48:38.026 INFO [stderr] Nov 16 18:48:38.031 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:38.031 INFO [stderr] --> src/lib.rs:300:9 Nov 16 18:48:38.031 INFO [stderr] | Nov 16 18:48:38.031 INFO [stderr] 300 | let mut tree = make_tree(v); Nov 16 18:48:38.031 INFO [stderr] | ----^^^^ Nov 16 18:48:38.031 INFO [stderr] | | Nov 16 18:48:38.031 INFO [stderr] | help: remove this `mut` Nov 16 18:48:38.031 INFO [stderr] Nov 16 18:48:38.031 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:38.031 INFO [stderr] --> src/lib.rs:350:9 Nov 16 18:48:38.031 INFO [stderr] | Nov 16 18:48:38.031 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Nov 16 18:48:38.031 INFO [stderr] | ----^^^ Nov 16 18:48:38.031 INFO [stderr] | | Nov 16 18:48:38.031 INFO [stderr] | help: remove this `mut` Nov 16 18:48:38.031 INFO [stderr] Nov 16 18:48:38.031 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:38.031 INFO [stderr] --> src/lib.rs:388:9 Nov 16 18:48:38.032 INFO [stderr] | Nov 16 18:48:38.037 INFO [stderr] 388 | let mut bits = BitString::new(); Nov 16 18:48:38.037 INFO [stderr] | ----^^^^ Nov 16 18:48:38.037 INFO [stderr] | | Nov 16 18:48:38.037 INFO [stderr] | help: remove this `mut` Nov 16 18:48:38.037 INFO [stderr] Nov 16 18:48:38.037 INFO [stderr] warning: variable does not need to be mutable Nov 16 18:48:38.037 INFO [stderr] --> src/lib.rs:393:29 Nov 16 18:48:38.037 INFO [stderr] | Nov 16 18:48:38.037 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Nov 16 18:48:38.037 INFO [stderr] | ----^^^^ Nov 16 18:48:38.037 INFO [stderr] | | Nov 16 18:48:38.037 INFO [stderr] | help: remove this `mut` Nov 16 18:48:38.037 INFO [stderr] Nov 16 18:48:38.043 INFO [stderr] warning: function is never used: `byte_string` Nov 16 18:48:38.043 INFO [stderr] --> src/lib.rs:138:1 Nov 16 18:48:38.043 INFO [stderr] | Nov 16 18:48:38.043 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Nov 16 18:48:38.043 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:38.043 INFO [stderr] | Nov 16 18:48:38.043 INFO [stderr] = note: #[warn(dead_code)] on by default Nov 16 18:48:38.043 INFO [stderr] Nov 16 18:48:38.055 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:38.055 INFO [stderr] --> src/lib.rs:104:9 Nov 16 18:48:38.055 INFO [stderr] | Nov 16 18:48:38.055 INFO [stderr] 104 | self.output.write(&a); Nov 16 18:48:38.055 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:38.055 INFO [stderr] | Nov 16 18:48:38.055 INFO [stderr] = note: #[warn(unused_must_use)] on by default Nov 16 18:48:38.055 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:38.055 INFO [stderr] Nov 16 18:48:38.055 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:38.055 INFO [stderr] --> src/lib.rs:236:17 Nov 16 18:48:38.055 INFO [stderr] | Nov 16 18:48:38.055 INFO [stderr] 236 | output.write(&[value]); Nov 16 18:48:38.055 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:38.055 INFO [stderr] | Nov 16 18:48:38.055 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:38.055 INFO [stderr] Nov 16 18:48:38.055 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:38.055 INFO [stderr] --> src/lib.rs:306:5 Nov 16 18:48:38.055 INFO [stderr] | Nov 16 18:48:38.056 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Nov 16 18:48:38.056 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:38.056 INFO [stderr] | Nov 16 18:48:38.056 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:38.056 INFO [stderr] Nov 16 18:48:38.056 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:38.056 INFO [stderr] --> src/lib.rs:321:5 Nov 16 18:48:38.056 INFO [stderr] | Nov 16 18:48:38.056 INFO [stderr] 321 | output.write_all(&list_len_buf); Nov 16 18:48:38.056 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:38.056 INFO [stderr] | Nov 16 18:48:38.056 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:38.056 INFO [stderr] Nov 16 18:48:38.056 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:38.056 INFO [stderr] --> src/lib.rs:334:17 Nov 16 18:48:38.056 INFO [stderr] | Nov 16 18:48:38.056 INFO [stderr] 334 | output.write_all(&buf); Nov 16 18:48:38.056 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:38.056 INFO [stderr] | Nov 16 18:48:38.056 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:38.056 INFO [stderr] Nov 16 18:48:38.056 INFO [stderr] warning: unused `std::result::Result` that must be used Nov 16 18:48:38.057 INFO [stderr] --> src/lib.rs:353:5 Nov 16 18:48:38.057 INFO [stderr] | Nov 16 18:48:38.057 INFO [stderr] 353 | output.write_all(&buf); Nov 16 18:48:38.057 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Nov 16 18:48:38.057 INFO [stderr] | Nov 16 18:48:38.057 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Nov 16 18:48:38.057 INFO [stderr] Nov 16 18:48:38.533 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.59s Nov 16 18:48:38.535 INFO [stderr] su: No module specific data is present Nov 16 18:48:39.450 INFO running `"docker" "inspect" "577f9bf92f42f0bf5768450e0c078b68c808dc4d74a71120374a48e0f0efcb62"` Nov 16 18:48:39.797 INFO running `"docker" "rm" "-f" "577f9bf92f42f0bf5768450e0c078b68c808dc4d74a71120374a48e0f0efcb62"` Nov 16 18:48:40.103 INFO [stdout] 577f9bf92f42f0bf5768450e0c078b68c808dc4d74a71120374a48e0f0efcb62 Nov 16 18:48:40.105 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 18:48:40.581 INFO [stdout] b22991ca244be864ed2fecb341b8cdac5728999a32ede1f69911616514108329 Nov 16 18:48:40.583 INFO running `"docker" "start" "-a" "b22991ca244be864ed2fecb341b8cdac5728999a32ede1f69911616514108329"` Nov 16 18:48:42.083 INFO [stderr] usermod: no changes Nov 16 18:48:42.171 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.05s Nov 16 18:48:42.179 INFO [stderr] Running /target/debug/deps/huffman_code-1003adcf7fb557b3 Nov 16 18:48:42.179 INFO [stderr] Running /target/debug/deps/huffman_code-0ea2ebd59bb90b95 Nov 16 18:48:42.180 INFO [stdout] Nov 16 18:48:42.180 INFO [stdout] running 0 tests Nov 16 18:48:42.180 INFO [stdout] Nov 16 18:48:42.180 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 16 18:48:42.180 INFO [stdout] Nov 16 18:48:42.191 INFO [stdout] Nov 16 18:48:42.191 INFO [stdout] running 0 tests Nov 16 18:48:42.191 INFO [stdout] Nov 16 18:48:42.191 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 16 18:48:42.191 INFO [stdout] Nov 16 18:48:42.192 INFO [stderr] Doc-tests huffman_code Nov 16 18:48:42.603 INFO [stdout] Nov 16 18:48:42.603 INFO [stdout] running 0 tests Nov 16 18:48:42.603 INFO [stdout] Nov 16 18:48:42.603 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Nov 16 18:48:42.603 INFO [stdout] Nov 16 18:48:42.607 INFO [stderr] su: No module specific data is present Nov 16 18:48:43.597 INFO running `"docker" "inspect" "b22991ca244be864ed2fecb341b8cdac5728999a32ede1f69911616514108329"` Nov 16 18:48:43.959 INFO running `"docker" "rm" "-f" "b22991ca244be864ed2fecb341b8cdac5728999a32ede1f69911616514108329"` Nov 16 18:48:44.341 INFO [stdout] b22991ca244be864ed2fecb341b8cdac5728999a32ede1f69911616514108329