[INFO] fetching crate zippopotamus 0.1.2...
[INFO] testing zippopotamus-0.1.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate zippopotamus 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate zippopotamus 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate zippopotamus 0.1.2
[INFO] tweaked toml for crates.io crate zippopotamus 0.1.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zippopotamus 0.1.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zippopotamus 0.1.2 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ddbdafe5bcbafae6d300ab2284a695ca88ecec5d0a11e4541e051fcab405a3b
[INFO] running `Command { std: "docker" "start" "-a" "0ddbdafe5bcbafae6d300ab2284a695ca88ecec5d0a11e4541e051fcab405a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ddbdafe5bcbafae6d300ab2284a695ca88ecec5d0a11e4541e051fcab405a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ddbdafe5bcbafae6d300ab2284a695ca88ecec5d0a11e4541e051fcab405a3b", kill_on_drop: false }`
[INFO] [stdout] 0ddbdafe5bcbafae6d300ab2284a695ca88ecec5d0a11e4541e051fcab405a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 998c838890a94427940fe9bff296f8eb9d2d359dc8c361a5078a704dd6c0d316
[INFO] running `Command { std: "docker" "start" "-a" "998c838890a94427940fe9bff296f8eb9d2d359dc8c361a5078a704dd6c0d316", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling litemap v0.7.5
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]    Compiling writeable v0.5.5
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[INFO] [stderr]    Compiling anstream v0.6.19
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[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling clap_builder v4.5.40
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[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]    Compiling zerofrom v0.1.6
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[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling webbrowser v1.0.4
[INFO] [stderr]    Compiling zippopotamus v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cell::LazyCell`
[INFO] [stdout]  --> src/zip.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{cell::LazyCell, collections::HashMap, path::PathBuf};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Output`
[INFO] [stdout]  --> src/huffman.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::process::Output;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/huffman.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/lz77.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitvec::prelude`
[INFO] [stdout]  --> src/zip.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bitvec::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut depth = self.dict.iter().max_by(|a, b| { a.1.1.cmp(&b.1.1).then(a.0.cmp(b.0)) }).unwrap().1.1;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zpp`
[INFO] [stdout]    --> src/huffman.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut zpp = Zpp {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_zpp`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut zpp = Zpp {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err_count`
[INFO] [stdout]    --> src/huffman.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut err_count: usize = 0;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_err_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut bit_stream: BitVec<u8, Lsb0> = BitVec::from_vec(source.to_vec());
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut err_count: usize = 0;
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]    --> src/lz77.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub fn trie_encode(source: &[u8]) {
[INFO] [stdout]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `MAX_LEN` and `limit_length` are never used
[INFO] [stdout]    --> src/huffman.rs:43:11
[INFO] [stdout]     |
[INFO] [stdout]  40 | impl HuffmanTree {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  43 |     const MAX_LEN: u8 = 15;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn limit_length(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lz77.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl Match {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 123 |     pub fn new() -> Self { Match { len: 0, offset: 0, next_symbol: 0 } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.42s
[INFO] running `Command { std: "docker" "inspect" "998c838890a94427940fe9bff296f8eb9d2d359dc8c361a5078a704dd6c0d316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998c838890a94427940fe9bff296f8eb9d2d359dc8c361a5078a704dd6c0d316", kill_on_drop: false }`
[INFO] [stdout] 998c838890a94427940fe9bff296f8eb9d2d359dc8c361a5078a704dd6c0d316
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f6d2119874d971759c0aaff28a13d9026afd2b8948c97816f834eebb0c06457
[INFO] running `Command { std: "docker" "start" "-a" "8f6d2119874d971759c0aaff28a13d9026afd2b8948c97816f834eebb0c06457", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `cell::LazyCell`
[INFO] [stdout]  --> src/zip.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{cell::LazyCell, collections::HashMap, path::PathBuf};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Output`
[INFO] [stdout]  --> src/huffman.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::process::Output;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/huffman.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/lz77.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitvec::prelude`
[INFO] [stdout]  --> src/zip.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bitvec::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut depth = self.dict.iter().max_by(|a, b| { a.1.1.cmp(&b.1.1).then(a.0.cmp(b.0)) }).unwrap().1.1;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zpp`
[INFO] [stdout]    --> src/huffman.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut zpp = Zpp {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_zpp`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut zpp = Zpp {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err_count`
[INFO] [stdout]    --> src/huffman.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut err_count: usize = 0;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_err_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut bit_stream: BitVec<u8, Lsb0> = BitVec::from_vec(source.to_vec());
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut err_count: usize = 0;
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]    --> src/lz77.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub fn trie_encode(source: &[u8]) {
[INFO] [stdout]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `MAX_LEN` and `limit_length` are never used
[INFO] [stdout]    --> src/huffman.rs:43:11
[INFO] [stdout]     |
[INFO] [stdout]  40 | impl HuffmanTree {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  43 |     const MAX_LEN: u8 = 15;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn limit_length(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lz77.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl Match {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 123 |     pub fn new() -> Self { Match { len: 0, offset: 0, next_symbol: 0 } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zippopotamus v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng` and `SeedableRng`
[INFO] [stdout]  --> tests/tests.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{Rng, SeedableRng};
[INFO] [stdout]   |            ^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::rngs::StdRng`
[INFO] [stdout]  --> tests/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::rngs::StdRng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `zippopotamus::lz77::*`
[INFO] [stdout]  --> tests/tests.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zippopotamus::lz77::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> tests/tests.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::LazyCell`
[INFO] [stdout]  --> src/zip.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{cell::LazyCell, collections::HashMap, path::PathBuf};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Output`
[INFO] [stdout]  --> src/huffman.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::process::Output;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/huffman.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/lz77.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitvec::prelude`
[INFO] [stdout]  --> src/zip.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bitvec::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut depth = self.dict.iter().max_by(|a, b| { a.1.1.cmp(&b.1.1).then(a.0.cmp(b.0)) }).unwrap().1.1;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `zpp`
[INFO] [stdout]    --> src/huffman.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut zpp = Zpp {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_zpp`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let mut zpp = Zpp {
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err_count`
[INFO] [stdout]    --> src/huffman.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut err_count: usize = 0;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_err_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut bit_stream: BitVec<u8, Lsb0> = BitVec::from_vec(source.to_vec());
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/huffman.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let mut err_count: usize = 0;
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]    --> src/lz77.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub fn trie_encode(source: &[u8]) {
[INFO] [stdout]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `MAX_LEN` and `limit_length` are never used
[INFO] [stdout]    --> src/huffman.rs:43:11
[INFO] [stdout]     |
[INFO] [stdout]  40 | impl HuffmanTree {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  43 |     const MAX_LEN: u8 = 15;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn limit_length(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lz77.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl Match {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 123 |     pub fn new() -> Self { Match { len: 0, offset: 0, next_symbol: 0 } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "8f6d2119874d971759c0aaff28a13d9026afd2b8948c97816f834eebb0c06457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6d2119874d971759c0aaff28a13d9026afd2b8948c97816f834eebb0c06457", kill_on_drop: false }`
[INFO] [stdout] 8f6d2119874d971759c0aaff28a13d9026afd2b8948c97816f834eebb0c06457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b29663fd5c2bfeac843691c0b8c097bf715293c994ee3832e88fbc9b32b8ecc
[INFO] running `Command { std: "docker" "start" "-a" "7b29663fd5c2bfeac843691c0b8c097bf715293c994ee3832e88fbc9b32b8ecc", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `cell::LazyCell`
[INFO] [stderr]  --> src/zip.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{cell::LazyCell, collections::HashMap, path::PathBuf};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::Output`
[INFO] [stderr]  --> src/huffman.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::process::Output;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]   --> src/huffman.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::fs;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lz77.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bitvec::prelude`
[INFO] [stderr]  --> src/zip.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use bitvec::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/huffman.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let mut depth = self.dict.iter().max_by(|a, b| { a.1.1.cmp(&b.1.1).then(a.0.cmp(b.0)) }).unwrap().1.1;
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `zpp`
[INFO] [stderr]    --> src/huffman.rs:180:13
[INFO] [stderr]     |
[INFO] [stderr] 180 |     let mut zpp = Zpp {
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_zpp`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/huffman.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |     let mut zpp = Zpp {
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err_count`
[INFO] [stderr]    --> src/huffman.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |     let mut err_count: usize = 0;
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_err_count`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/huffman.rs:211:9
[INFO] [stderr]     |
[INFO] [stderr] 211 |     let mut bit_stream: BitVec<u8, Lsb0> = BitVec::from_vec(source.to_vec());
[INFO] [stderr]     |         ----^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/huffman.rs:222:9
[INFO] [stderr]     |
[INFO] [stderr] 222 |     let mut err_count: usize = 0;
[INFO] [stderr]     |         ----^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `source`
[INFO] [stderr]    --> src/lz77.rs:131:20
[INFO] [stderr]     |
[INFO] [stderr] 131 | pub fn trie_encode(source: &[u8]) {
[INFO] [stderr]     |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `MAX_LEN` and `limit_length` are never used
[INFO] [stderr]    --> src/huffman.rs:43:11
[INFO] [stderr]     |
[INFO] [stderr]  40 | impl HuffmanTree {
[INFO] [stderr]     | ---------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr]  43 |     const MAX_LEN: u8 = 15;
[INFO] [stderr]     |           ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |     fn limit_length(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/lz77.rs:123:12
[INFO] [stderr]     |
[INFO] [stderr] 122 | impl Match {
[INFO] [stderr]     | ---------- associated function in this implementation
[INFO] [stderr] 123 |     pub fn new() -> Self { Match { len: 0, offset: 0, next_symbol: 0 } }
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `zippopotamus` (lib) generated 14 warnings (run `cargo fix --lib -p zippopotamus` to apply 8 suggestions)
[INFO] [stderr] warning: `zippopotamus` (lib test) generated 14 warnings (14 duplicates)
[INFO] [stderr] warning: unused imports: `Rng` and `SeedableRng`
[INFO] [stderr]  --> tests/tests.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::{Rng, SeedableRng};
[INFO] [stderr]   |            ^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::rngs::StdRng`
[INFO] [stderr]  --> tests/tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::rngs::StdRng;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `zippopotamus::lz77::*`
[INFO] [stderr]  --> tests/tests.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use zippopotamus::lz77::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> tests/tests.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     use super::*;
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `zippopotamus` (test "tests") generated 4 warnings (run `cargo fix --test "tests"` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/zippopotamus-3ebc8bf307d298eb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/zippopotamus-51087ff443c70a12)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-29bec3b14ac7d28d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zippopotamus
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b29663fd5c2bfeac843691c0b8c097bf715293c994ee3832e88fbc9b32b8ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b29663fd5c2bfeac843691c0b8c097bf715293c994ee3832e88fbc9b32b8ecc", kill_on_drop: false }`
[INFO] [stdout] 7b29663fd5c2bfeac843691c0b8c097bf715293c994ee3832e88fbc9b32b8ecc