Dec 13 09:40:59.821 INFO testing murphym18/huffman_code against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550 Dec 13 09:40:59.821 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 09:41:00.116 INFO [stdout] 91c6e537cd60bf1189a186636bf963e3be2c292ac16aec2ce52de251b726a5ba Dec 13 09:41:00.124 INFO running `"docker" "start" "-a" "91c6e537cd60bf1189a186636bf963e3be2c292ac16aec2ce52de251b726a5ba"` Dec 13 09:41:00.728 INFO [stderr] usermod: no changes Dec 13 09:41:00.769 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Dec 13 09:41:01.011 INFO [stderr] warning: unused import: `std::io` Dec 13 09:41:01.011 INFO [stderr] --> src/lib.rs:1:5 Dec 13 09:41:01.011 INFO [stderr] | Dec 13 09:41:01.011 INFO [stderr] 1 | use std::io; Dec 13 09:41:01.011 INFO [stderr] | ^^^^^^^ Dec 13 09:41:01.011 INFO [stderr] | Dec 13 09:41:01.011 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 13 09:41:01.011 INFO [stderr] Dec 13 09:41:01.011 INFO [stderr] warning: unused import: `Cursor` Dec 13 09:41:01.011 INFO [stderr] --> src/lib.rs:5:28 Dec 13 09:41:01.011 INFO [stderr] | Dec 13 09:41:01.011 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Dec 13 09:41:01.011 INFO [stderr] | ^^^^^^ Dec 13 09:41:01.011 INFO [stderr] Dec 13 09:41:01.142 INFO [stderr] warning: unused variable: `left` Dec 13 09:41:01.142 INFO [stderr] --> src/lib.rs:171:26 Dec 13 09:41:01.142 INFO [stderr] | Dec 13 09:41:01.142 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 13 09:41:01.142 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Dec 13 09:41:01.142 INFO [stderr] | Dec 13 09:41:01.142 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 13 09:41:01.142 INFO [stderr] Dec 13 09:41:01.142 INFO [stderr] warning: unused variable: `right` Dec 13 09:41:01.142 INFO [stderr] --> src/lib.rs:171:36 Dec 13 09:41:01.142 INFO [stderr] | Dec 13 09:41:01.142 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 13 09:41:01.142 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Dec 13 09:41:01.142 INFO [stderr] Dec 13 09:41:01.142 INFO [stderr] warning: unused variable: `value` Dec 13 09:41:01.142 INFO [stderr] --> src/lib.rs:172:22 Dec 13 09:41:01.142 INFO [stderr] | Dec 13 09:41:01.142 INFO [stderr] 172 | Leaf {count, value} => count Dec 13 09:41:01.142 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 13 09:41:01.142 INFO [stderr] Dec 13 09:41:01.143 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:01.143 INFO [stderr] --> src/lib.rs:178:15 Dec 13 09:41:01.143 INFO [stderr] | Dec 13 09:41:01.143 INFO [stderr] 178 | Node {count, ref left, ref right} => { Dec 13 09:41:01.143 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:01.143 INFO [stderr] Dec 13 09:41:01.143 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:01.143 INFO [stderr] --> src/lib.rs:235:19 Dec 13 09:41:01.143 INFO [stderr] | Dec 13 09:41:01.143 INFO [stderr] 235 | Leaf {count, value} => { Dec 13 09:41:01.143 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:01.143 INFO [stderr] Dec 13 09:41:01.143 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:01.143 INFO [stderr] --> src/lib.rs:240:19 Dec 13 09:41:01.143 INFO [stderr] | Dec 13 09:41:01.143 INFO [stderr] 240 | Node {count, ref left, ref right} => { Dec 13 09:41:01.143 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:01.143 INFO [stderr] Dec 13 09:41:01.143 INFO [stderr] warning: unused variable: `p` Dec 13 09:41:01.143 INFO [stderr] --> src/lib.rs:303:9 Dec 13 09:41:01.143 INFO [stderr] | Dec 13 09:41:01.143 INFO [stderr] 303 | let p = 97 as u8; Dec 13 09:41:01.143 INFO [stderr] | ^ help: consider using `_p` instead Dec 13 09:41:01.143 INFO [stderr] Dec 13 09:41:01.143 INFO [stderr] warning: unused variable: `value` Dec 13 09:41:01.143 INFO [stderr] --> src/lib.rs:346:26 Dec 13 09:41:01.143 INFO [stderr] | Dec 13 09:41:01.143 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Dec 13 09:41:01.143 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 13 09:41:01.143 INFO [stderr] Dec 13 09:41:01.143 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:01.143 INFO [stderr] --> src/lib.rs:395:15 Dec 13 09:41:01.143 INFO [stderr] | Dec 13 09:41:01.143 INFO [stderr] 395 | Node {count, ref left, ref right} => { Dec 13 09:41:01.143 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:01.143 INFO [stderr] Dec 13 09:41:01.143 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:01.143 INFO [stderr] --> src/lib.rs:403:15 Dec 13 09:41:01.143 INFO [stderr] | Dec 13 09:41:01.143 INFO [stderr] 403 | Leaf {count, value} => { Dec 13 09:41:01.143 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:01.143 INFO [stderr] Dec 13 09:41:01.153 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:01.153 INFO [stderr] --> src/lib.rs:215:9 Dec 13 09:41:01.153 INFO [stderr] | Dec 13 09:41:01.153 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Dec 13 09:41:01.153 INFO [stderr] | ----^^^^ Dec 13 09:41:01.153 INFO [stderr] | | Dec 13 09:41:01.153 INFO [stderr] | help: remove this `mut` Dec 13 09:41:01.153 INFO [stderr] | Dec 13 09:41:01.153 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 13 09:41:01.153 INFO [stderr] Dec 13 09:41:01.163 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:01.163 INFO [stderr] --> src/lib.rs:300:9 Dec 13 09:41:01.163 INFO [stderr] | Dec 13 09:41:01.163 INFO [stderr] 300 | let mut tree = make_tree(v); Dec 13 09:41:01.163 INFO [stderr] | ----^^^^ Dec 13 09:41:01.163 INFO [stderr] | | Dec 13 09:41:01.163 INFO [stderr] | help: remove this `mut` Dec 13 09:41:01.163 INFO [stderr] Dec 13 09:41:01.163 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:01.163 INFO [stderr] --> src/lib.rs:350:9 Dec 13 09:41:01.163 INFO [stderr] | Dec 13 09:41:01.163 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Dec 13 09:41:01.163 INFO [stderr] | ----^^^ Dec 13 09:41:01.163 INFO [stderr] | | Dec 13 09:41:01.163 INFO [stderr] | help: remove this `mut` Dec 13 09:41:01.163 INFO [stderr] Dec 13 09:41:01.163 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:01.163 INFO [stderr] --> src/lib.rs:388:9 Dec 13 09:41:01.163 INFO [stderr] | Dec 13 09:41:01.163 INFO [stderr] 388 | let mut bits = BitString::new(); Dec 13 09:41:01.163 INFO [stderr] | ----^^^^ Dec 13 09:41:01.163 INFO [stderr] | | Dec 13 09:41:01.163 INFO [stderr] | help: remove this `mut` Dec 13 09:41:01.163 INFO [stderr] Dec 13 09:41:01.163 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:01.163 INFO [stderr] --> src/lib.rs:393:29 Dec 13 09:41:01.163 INFO [stderr] | Dec 13 09:41:01.163 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Dec 13 09:41:01.163 INFO [stderr] | ----^^^^ Dec 13 09:41:01.163 INFO [stderr] | | Dec 13 09:41:01.163 INFO [stderr] | help: remove this `mut` Dec 13 09:41:01.163 INFO [stderr] Dec 13 09:41:01.170 INFO [stderr] warning: function is never used: `byte_string` Dec 13 09:41:01.170 INFO [stderr] --> src/lib.rs:138:1 Dec 13 09:41:01.170 INFO [stderr] | Dec 13 09:41:01.170 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Dec 13 09:41:01.170 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:01.170 INFO [stderr] | Dec 13 09:41:01.170 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 13 09:41:01.170 INFO [stderr] Dec 13 09:41:01.173 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:01.173 INFO [stderr] --> src/lib.rs:104:9 Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] 104 | self.output.write(&a); Dec 13 09:41:01.173 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 13 09:41:01.173 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:01.173 INFO [stderr] Dec 13 09:41:01.173 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:01.173 INFO [stderr] --> src/lib.rs:236:17 Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] 236 | output.write(&[value]); Dec 13 09:41:01.173 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:01.173 INFO [stderr] Dec 13 09:41:01.173 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:01.173 INFO [stderr] --> src/lib.rs:306:5 Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Dec 13 09:41:01.173 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:01.173 INFO [stderr] Dec 13 09:41:01.173 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:01.173 INFO [stderr] --> src/lib.rs:321:5 Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] 321 | output.write_all(&list_len_buf); Dec 13 09:41:01.173 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:01.173 INFO [stderr] Dec 13 09:41:01.173 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:01.173 INFO [stderr] --> src/lib.rs:334:17 Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] 334 | output.write_all(&buf); Dec 13 09:41:01.173 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:01.173 INFO [stderr] Dec 13 09:41:01.173 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:01.173 INFO [stderr] --> src/lib.rs:353:5 Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] 353 | output.write_all(&buf); Dec 13 09:41:01.173 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:01.173 INFO [stderr] | Dec 13 09:41:01.173 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:01.173 INFO [stderr] Dec 13 09:41:02.183 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.39s Dec 13 09:41:02.183 INFO [stderr] su: No module specific data is present Dec 13 09:41:02.563 INFO running `"docker" "inspect" "91c6e537cd60bf1189a186636bf963e3be2c292ac16aec2ce52de251b726a5ba"` Dec 13 09:41:02.942 INFO running `"docker" "rm" "-f" "91c6e537cd60bf1189a186636bf963e3be2c292ac16aec2ce52de251b726a5ba"` Dec 13 09:41:03.170 INFO [stdout] 91c6e537cd60bf1189a186636bf963e3be2c292ac16aec2ce52de251b726a5ba Dec 13 09:41:03.173 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 09:41:03.413 INFO [stdout] 8d6aaa97c5da5e55a7e919f5642186d9eb7a5d2c1d2f8551d0deb7935242a12c Dec 13 09:41:03.514 INFO running `"docker" "start" "-a" "8d6aaa97c5da5e55a7e919f5642186d9eb7a5d2c1d2f8551d0deb7935242a12c"` Dec 13 09:41:04.045 INFO [stderr] usermod: no changes Dec 13 09:41:04.063 INFO [stderr] Compiling huffman_code v0.1.0 (/source) Dec 13 09:41:04.342 INFO [stderr] warning: unused import: `std::io` Dec 13 09:41:04.342 INFO [stderr] --> src/lib.rs:1:5 Dec 13 09:41:04.342 INFO [stderr] | Dec 13 09:41:04.342 INFO [stderr] 1 | use std::io; Dec 13 09:41:04.342 INFO [stderr] | ^^^^^^^ Dec 13 09:41:04.342 INFO [stderr] | Dec 13 09:41:04.342 INFO [stderr] = note: #[warn(unused_imports)] on by default Dec 13 09:41:04.342 INFO [stderr] Dec 13 09:41:04.342 INFO [stderr] warning: unused import: `Cursor` Dec 13 09:41:04.342 INFO [stderr] --> src/lib.rs:5:28 Dec 13 09:41:04.342 INFO [stderr] | Dec 13 09:41:04.342 INFO [stderr] 5 | use std::io::{Read, Write, Cursor}; Dec 13 09:41:04.342 INFO [stderr] | ^^^^^^ Dec 13 09:41:04.342 INFO [stderr] Dec 13 09:41:04.477 INFO [stderr] warning: unused variable: `left` Dec 13 09:41:04.477 INFO [stderr] --> src/lib.rs:171:26 Dec 13 09:41:04.477 INFO [stderr] | Dec 13 09:41:04.477 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 13 09:41:04.477 INFO [stderr] | ^^^^ help: try ignoring the field: `left: _` Dec 13 09:41:04.477 INFO [stderr] | Dec 13 09:41:04.477 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 13 09:41:04.477 INFO [stderr] Dec 13 09:41:04.477 INFO [stderr] warning: unused variable: `right` Dec 13 09:41:04.477 INFO [stderr] --> src/lib.rs:171:36 Dec 13 09:41:04.477 INFO [stderr] | Dec 13 09:41:04.477 INFO [stderr] 171 | Node {count, ref left, ref right} => count, Dec 13 09:41:04.477 INFO [stderr] | ^^^^^ help: try ignoring the field: `right: _` Dec 13 09:41:04.477 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `value` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:172:22 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 172 | Leaf {count, value} => count Dec 13 09:41:04.479 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:178:15 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 178 | Node {count, ref left, ref right} => { Dec 13 09:41:04.479 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:235:19 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 235 | Leaf {count, value} => { Dec 13 09:41:04.479 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:240:19 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 240 | Node {count, ref left, ref right} => { Dec 13 09:41:04.479 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `p` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:303:9 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 303 | let p = 97 as u8; Dec 13 09:41:04.479 INFO [stderr] | ^ help: consider using `_p` instead Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `value` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:346:26 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 346 | Leaf {count, value} => size = size + count, Dec 13 09:41:04.479 INFO [stderr] | ^^^^^ help: try ignoring the field: `value: _` Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:395:15 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 395 | Node {count, ref left, ref right} => { Dec 13 09:41:04.479 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.479 INFO [stderr] warning: unused variable: `count` Dec 13 09:41:04.479 INFO [stderr] --> src/lib.rs:403:15 Dec 13 09:41:04.479 INFO [stderr] | Dec 13 09:41:04.479 INFO [stderr] 403 | Leaf {count, value} => { Dec 13 09:41:04.479 INFO [stderr] | ^^^^^ help: try ignoring the field: `count: _` Dec 13 09:41:04.479 INFO [stderr] Dec 13 09:41:04.495 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:04.495 INFO [stderr] --> src/lib.rs:215:9 Dec 13 09:41:04.495 INFO [stderr] | Dec 13 09:41:04.495 INFO [stderr] 215 | let mut tree = make_tree(table_vec); Dec 13 09:41:04.495 INFO [stderr] | ----^^^^ Dec 13 09:41:04.495 INFO [stderr] | | Dec 13 09:41:04.495 INFO [stderr] | help: remove this `mut` Dec 13 09:41:04.495 INFO [stderr] | Dec 13 09:41:04.495 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 13 09:41:04.495 INFO [stderr] Dec 13 09:41:04.503 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:04.503 INFO [stderr] --> src/lib.rs:300:9 Dec 13 09:41:04.503 INFO [stderr] | Dec 13 09:41:04.503 INFO [stderr] 300 | let mut tree = make_tree(v); Dec 13 09:41:04.503 INFO [stderr] | ----^^^^ Dec 13 09:41:04.503 INFO [stderr] | | Dec 13 09:41:04.503 INFO [stderr] | help: remove this `mut` Dec 13 09:41:04.503 INFO [stderr] Dec 13 09:41:04.503 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:04.503 INFO [stderr] --> src/lib.rs:350:9 Dec 13 09:41:04.503 INFO [stderr] | Dec 13 09:41:04.503 INFO [stderr] 350 | let mut buf: [u8; 8] = unsafe { Dec 13 09:41:04.503 INFO [stderr] | ----^^^ Dec 13 09:41:04.503 INFO [stderr] | | Dec 13 09:41:04.503 INFO [stderr] | help: remove this `mut` Dec 13 09:41:04.503 INFO [stderr] Dec 13 09:41:04.504 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:04.505 INFO [stderr] --> src/lib.rs:388:9 Dec 13 09:41:04.505 INFO [stderr] | Dec 13 09:41:04.505 INFO [stderr] 388 | let mut bits = BitString::new(); Dec 13 09:41:04.505 INFO [stderr] | ----^^^^ Dec 13 09:41:04.505 INFO [stderr] | | Dec 13 09:41:04.505 INFO [stderr] | help: remove this `mut` Dec 13 09:41:04.505 INFO [stderr] Dec 13 09:41:04.510 INFO [stderr] warning: variable does not need to be mutable Dec 13 09:41:04.510 INFO [stderr] --> src/lib.rs:393:29 Dec 13 09:41:04.510 INFO [stderr] | Dec 13 09:41:04.510 INFO [stderr] 393 | fn traverse(current: &Tree, mut bits: BitString, table: &mut HashMap) { Dec 13 09:41:04.510 INFO [stderr] | ----^^^^ Dec 13 09:41:04.510 INFO [stderr] | | Dec 13 09:41:04.510 INFO [stderr] | help: remove this `mut` Dec 13 09:41:04.510 INFO [stderr] Dec 13 09:41:04.511 INFO [stderr] warning: function is never used: `byte_string` Dec 13 09:41:04.511 INFO [stderr] --> src/lib.rs:138:1 Dec 13 09:41:04.511 INFO [stderr] | Dec 13 09:41:04.511 INFO [stderr] 138 | fn byte_string(data: u8, num_bits: u8) -> String { Dec 13 09:41:04.511 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:04.512 INFO [stderr] | Dec 13 09:41:04.512 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 13 09:41:04.512 INFO [stderr] Dec 13 09:41:04.512 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:04.512 INFO [stderr] --> src/lib.rs:104:9 Dec 13 09:41:04.512 INFO [stderr] | Dec 13 09:41:04.512 INFO [stderr] 104 | self.output.write(&a); Dec 13 09:41:04.512 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 13 09:41:04.516 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:04.516 INFO [stderr] Dec 13 09:41:04.516 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:04.516 INFO [stderr] --> src/lib.rs:236:17 Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] 236 | output.write(&[value]); Dec 13 09:41:04.516 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:04.516 INFO [stderr] Dec 13 09:41:04.516 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:04.516 INFO [stderr] --> src/lib.rs:306:5 Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] 306 | f.seek(SeekFrom::Start(0)); Dec 13 09:41:04.516 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:04.516 INFO [stderr] Dec 13 09:41:04.516 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:04.516 INFO [stderr] --> src/lib.rs:321:5 Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] 321 | output.write_all(&list_len_buf); Dec 13 09:41:04.516 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:04.516 INFO [stderr] Dec 13 09:41:04.516 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:04.516 INFO [stderr] --> src/lib.rs:334:17 Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] 334 | output.write_all(&buf); Dec 13 09:41:04.516 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:04.516 INFO [stderr] Dec 13 09:41:04.516 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 13 09:41:04.516 INFO [stderr] --> src/lib.rs:353:5 Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] 353 | output.write_all(&buf); Dec 13 09:41:04.516 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ Dec 13 09:41:04.516 INFO [stderr] | Dec 13 09:41:04.516 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 13 09:41:04.516 INFO [stderr] Dec 13 09:41:04.804 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.76s Dec 13 09:41:04.804 INFO [stderr] su: No module specific data is present Dec 13 09:41:05.119 INFO running `"docker" "inspect" "8d6aaa97c5da5e55a7e919f5642186d9eb7a5d2c1d2f8551d0deb7935242a12c"` Dec 13 09:41:05.395 INFO running `"docker" "rm" "-f" "8d6aaa97c5da5e55a7e919f5642186d9eb7a5d2c1d2f8551d0deb7935242a12c"` Dec 13 09:41:05.594 INFO [stdout] 8d6aaa97c5da5e55a7e919f5642186d9eb7a5d2c1d2f8551d0deb7935242a12c Dec 13 09:41:05.599 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 09:41:05.935 INFO [stdout] d3adcca01606ac6ae9d05eb232d5b3e225e96eb9d83e9f491a82e33324e1ece3 Dec 13 09:41:05.939 INFO running `"docker" "start" "-a" "d3adcca01606ac6ae9d05eb232d5b3e225e96eb9d83e9f491a82e33324e1ece3"` Dec 13 09:41:06.966 INFO [stderr] usermod: no changes Dec 13 09:41:07.003 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s Dec 13 09:41:07.005 INFO [stderr] Running /target/debug/deps/huffman_code-9ceb929f4b9bcc36 Dec 13 09:41:07.007 INFO [stdout] Dec 13 09:41:07.007 INFO [stdout] running 0 tests Dec 13 09:41:07.007 INFO [stdout] Dec 13 09:41:07.007 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 13 09:41:07.007 INFO [stdout] Dec 13 09:41:07.008 INFO [stderr] Running /target/debug/deps/huffman_code-a820d832445d5bd9 Dec 13 09:41:07.013 INFO [stdout] Dec 13 09:41:07.013 INFO [stdout] running 0 tests Dec 13 09:41:07.013 INFO [stdout] Dec 13 09:41:07.013 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 13 09:41:07.013 INFO [stdout] Dec 13 09:41:07.014 INFO [stderr] Doc-tests huffman_code Dec 13 09:41:07.407 INFO [stdout] Dec 13 09:41:07.407 INFO [stdout] running 0 tests Dec 13 09:41:07.407 INFO [stdout] Dec 13 09:41:07.407 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 13 09:41:07.407 INFO [stdout] Dec 13 09:41:07.414 INFO [stderr] su: No module specific data is present Dec 13 09:41:08.198 INFO running `"docker" "inspect" "d3adcca01606ac6ae9d05eb232d5b3e225e96eb9d83e9f491a82e33324e1ece3"` Dec 13 09:41:08.497 INFO running `"docker" "rm" "-f" "d3adcca01606ac6ae9d05eb232d5b3e225e96eb9d83e9f491a82e33324e1ece3"` Dec 13 09:41:08.752 INFO [stdout] d3adcca01606ac6ae9d05eb232d5b3e225e96eb9d83e9f491a82e33324e1ece3