[INFO] cloning repository https://github.com/wychu413/compression [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wychu413/compression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwychu413%2Fcompression", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwychu413%2Fcompression'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ae5b1571ff87a5fe67e09413bcdb2ee37536364b [INFO] checking wychu413/compression against try#654bc80249a2b2ba8bd16392b5829d87ed96c92d for pr-136458 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwychu413%2Fcompression" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wychu413/compression on toolchain 654bc80249a2b2ba8bd16392b5829d87ed96c92d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wychu413/compression [INFO] finished tweaking git repo https://github.com/wychu413/compression [INFO] tweaked toml for git repo https://github.com/wychu413/compression written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/wychu413/compression already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3367550d6460c2714d9e3a71cb6634737c219728f8a5afddd1bbbe9eace98c63 [INFO] running `Command { std: "docker" "start" "-a" "3367550d6460c2714d9e3a71cb6634737c219728f8a5afddd1bbbe9eace98c63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3367550d6460c2714d9e3a71cb6634737c219728f8a5afddd1bbbe9eace98c63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3367550d6460c2714d9e3a71cb6634737c219728f8a5afddd1bbbe9eace98c63", kill_on_drop: false }` [INFO] [stdout] 3367550d6460c2714d9e3a71cb6634737c219728f8a5afddd1bbbe9eace98c63 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8592ab77ef304b181267f1249f987541f2dfdcd8607bcaf731c94b7629c2f74f [INFO] running `Command { std: "docker" "start" "-a" "8592ab77ef304b181267f1249f987541f2dfdcd8607bcaf731c94b7629c2f74f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.104 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking compression v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `bit_vec::BitVec` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use bit_vec::BitVec; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bit_vec::BitVec` [INFO] [stdout] --> src/compressor/huffman.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use bit_vec::BitVec; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `compressor::compressor::Compressor` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use compressor::compressor::Compressor; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bit_vec::BitVec` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use bit_vec::BitVec; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bit_vec::BitVec` [INFO] [stdout] --> src/compressor/huffman.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use bit_vec::BitVec; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `compressor::compressor::Compressor` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use compressor::compressor::Compressor; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `map` [INFO] [stdout] --> src/compressor/huffman.rs:94:13 [INFO] [stdout] | [INFO] [stdout] 94 | let map = HashMap::::new(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_map` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `algo`, `is_decompress`, `input_file`, and `output_file` are never read [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 15 | // the algorithm to compress/decompress the data [INFO] [stdout] 16 | algo: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 17 | // compress/decompress [INFO] [stdout] 18 | is_decompress: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 19 | // the input file name [INFO] [stdout] 20 | input_file: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | output_file: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bytes_freq_count` is never used [INFO] [stdout] --> src/pkg/util.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn bytes_freq_count(bytes: &Vec) -> HashMap { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Compressor` is never constructed [INFO] [stdout] --> src/compressor/compressor.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Compressor [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `run` are never used [INFO] [stdout] --> src/compressor/compressor.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Compressor { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 14 | pub fn new(alg: &str) -> Compressor { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn run(self, bytes: &Vec) -> Vec { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `HuffmanTree` is never used [INFO] [stdout] --> src/compressor/huffman.rs:63:6 [INFO] [stdout] | [INFO] [stdout] 63 | enum HuffmanTree { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get_node_frequency` and `make_canonical_huffman_code_table` are never used [INFO] [stdout] --> src/compressor/huffman.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 80 | impl HuffmanTree { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] 81 | fn get_node_frequency(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | fn make_canonical_huffman_code_table(&self) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `make_tree` is never used [INFO] [stdout] --> src/compressor/huffman.rs:101:4 [INFO] [stdout] | [INFO] [stdout] 101 | fn make_tree(mut heap: BinaryHeap>) -> HuffmanTree { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compress` is never used [INFO] [stdout] --> src/compressor/huffman.rs:137:8 [INFO] [stdout] | [INFO] [stdout] 137 | pub fn compress(bytes: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `map` [INFO] [stdout] --> src/compressor/huffman.rs:94:13 [INFO] [stdout] | [INFO] [stdout] 94 | let map = HashMap::::new(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_map` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `algo`, `is_decompress`, `input_file`, and `output_file` are never read [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 15 | // the algorithm to compress/decompress the data [INFO] [stdout] 16 | algo: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 17 | // compress/decompress [INFO] [stdout] 18 | is_decompress: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 19 | // the input file name [INFO] [stdout] 20 | input_file: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 24 | output_file: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Compressor` is never constructed [INFO] [stdout] --> src/compressor/compressor.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Compressor [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `run` are never used [INFO] [stdout] --> src/compressor/compressor.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Compressor { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 14 | pub fn new(alg: &str) -> Compressor { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn run(self, bytes: &Vec) -> Vec { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `symbol` is never read [INFO] [stdout] --> src/compressor/huffman.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 65 | Leaf { [INFO] [stdout] | ---- field in this variant [INFO] [stdout] 66 | freq: u32, [INFO] [stdout] 67 | symbol: u8, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `left` and `right` are never read [INFO] [stdout] --> src/compressor/huffman.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 71 | Tree { [INFO] [stdout] | ---- fields in this variant [INFO] [stdout] ... [INFO] [stdout] 74 | left: Box, [INFO] [stdout] | ^^^^ [INFO] [stdout] 75 | // Right SubTree [INFO] [stdout] 76 | right: Box, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `HuffmanTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `make_canonical_huffman_code_table` is never used [INFO] [stdout] --> src/compressor/huffman.rs:88:8 [INFO] [stdout] | [INFO] [stdout] 80 | impl HuffmanTree { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 88 | fn make_canonical_huffman_code_table(&self) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compress` is never used [INFO] [stdout] --> src/compressor/huffman.rs:137:8 [INFO] [stdout] | [INFO] [stdout] 137 | pub fn compress(bytes: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.80s [INFO] running `Command { std: "docker" "inspect" "8592ab77ef304b181267f1249f987541f2dfdcd8607bcaf731c94b7629c2f74f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8592ab77ef304b181267f1249f987541f2dfdcd8607bcaf731c94b7629c2f74f", kill_on_drop: false }` [INFO] [stdout] 8592ab77ef304b181267f1249f987541f2dfdcd8607bcaf731c94b7629c2f74f