[INFO] cloning repository https://github.com/xyzzyz/rzlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xyzzyz/rzlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxyzzyz%2Frzlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxyzzyz%2Frzlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30874b37def7c4cdbcce1fa6c12546e286e17b4d
[INFO] testing xyzzyz/rzlib against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxyzzyz%2Frzlib" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xyzzyz/rzlib
[INFO] finished tweaking git repo https://github.com/xyzzyz/rzlib
[INFO] tweaked toml for git repo https://github.com/xyzzyz/rzlib written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xyzzyz/rzlib on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xyzzyz/rzlib 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbe7083cefb580777ff0f4687f18c28a241f683d853d4d4750fa17dbe517f503
[INFO] running `Command { std: "docker" "start" "-a" "dbe7083cefb580777ff0f4687f18c28a241f683d853d4d4750fa17dbe517f503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbe7083cefb580777ff0f4687f18c28a241f683d853d4d4750fa17dbe517f503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe7083cefb580777ff0f4687f18c28a241f683d853d4d4750fa17dbe517f503", kill_on_drop: false }`
[INFO] [stdout] dbe7083cefb580777ff0f4687f18c28a241f683d853d4d4750fa17dbe517f503
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa3bd56115014ecb2bb1682eff203dd70228bb050f1f1afb90a0d596d20d0175
[INFO] running `Command { std: "docker" "start" "-a" "aa3bd56115014ecb2bb1682eff203dd70228bb050f1f1afb90a0d596d20d0175", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling rzlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/rzlibreader.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File` and `read`
[INFO] [stdout]  --> src/rzlibreader.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{read, File};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/rzlibreader.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{BufRead, Read, Write};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt` and `result`
[INFO] [stdout]  --> src/rzlibreader.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cmp, fmt, io, mem, result};
[INFO] [stdout]   |                ^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::debug`
[INFO] [stdout]  --> src/rzlibreader.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::debug;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/lookbackbuffer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/rzlibreader.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let bytes_read = self.reader.read_until(0, &mut buf)?;
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ftext`
[INFO] [stdout]   --> src/rzlibreader.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let ftext = flg & 1 == 1;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ftext`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mtime`
[INFO] [stdout]    --> src/rzlibreader.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mtime = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xfl`
[INFO] [stdout]    --> src/rzlibreader.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let xfl = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_xfl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `os`
[INFO] [stdout]    --> src/rzlibreader.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let os = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extra`
[INFO] [stdout]    --> src/rzlibreader.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let extra = match String::from_utf8(fextra_buf) {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]    --> src/rzlibreader.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |             let file_name = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/rzlibreader.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |             let comment = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc16`
[INFO] [stdout]    --> src/rzlibreader.rs:149:17
[INFO] [stdout]     |
[INFO] [stdout] 149 |             let crc16 = u16::from_le_bytes(crc16_buf);
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc32`
[INFO] [stdout]    --> src/rzlibreader.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let crc32 = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isize`
[INFO] [stdout]    --> src/rzlibreader.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let isize = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_isize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:232:14
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:279:14
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:279:17
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Item` is never used
[INFO] [stdout]   --> src/rzlibreader.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum Item {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/rzlibreader.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File` and `read`
[INFO] [stdout]  --> src/rzlibreader.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{read, File};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/rzlibreader.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{BufRead, Read, Write};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt` and `result`
[INFO] [stdout]  --> src/rzlibreader.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cmp, fmt, io, mem, result};
[INFO] [stdout]   |                ^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::debug`
[INFO] [stdout]  --> src/rzlibreader.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::debug;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/lookbackbuffer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/rzlibreader.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let bytes_read = self.reader.read_until(0, &mut buf)?;
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ftext`
[INFO] [stdout]   --> src/rzlibreader.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let ftext = flg & 1 == 1;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ftext`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mtime`
[INFO] [stdout]    --> src/rzlibreader.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mtime = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xfl`
[INFO] [stdout]    --> src/rzlibreader.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let xfl = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_xfl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `os`
[INFO] [stdout]    --> src/rzlibreader.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let os = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extra`
[INFO] [stdout]    --> src/rzlibreader.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let extra = match String::from_utf8(fextra_buf) {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]    --> src/rzlibreader.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |             let file_name = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/rzlibreader.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |             let comment = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc16`
[INFO] [stdout]    --> src/rzlibreader.rs:149:17
[INFO] [stdout]     |
[INFO] [stdout] 149 |             let crc16 = u16::from_le_bytes(crc16_buf);
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc32`
[INFO] [stdout]    --> src/rzlibreader.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let crc32 = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isize`
[INFO] [stdout]    --> src/rzlibreader.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let isize = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_isize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:232:14
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:279:14
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:279:17
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Item` is never used
[INFO] [stdout]   --> src/rzlibreader.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum Item {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dump_impl` and `dump` are never used
[INFO] [stdout]    --> src/huffman.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout]  67 | impl<R: Debug + Clone> HuffmanTree<R> {
[INFO] [stdout]     | ------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn dump_impl(&self, path: &Codeword) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn dump(&self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "aa3bd56115014ecb2bb1682eff203dd70228bb050f1f1afb90a0d596d20d0175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3bd56115014ecb2bb1682eff203dd70228bb050f1f1afb90a0d596d20d0175", kill_on_drop: false }`
[INFO] [stdout] aa3bd56115014ecb2bb1682eff203dd70228bb050f1f1afb90a0d596d20d0175
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46a8a6c0278c836be8a22bc8571efccfb6514c7d34ebe1fb2902b2624644a6f1
[INFO] running `Command { std: "docker" "start" "-a" "46a8a6c0278c836be8a22bc8571efccfb6514c7d34ebe1fb2902b2624644a6f1", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/rzlibreader.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File` and `read`
[INFO] [stdout]  --> src/rzlibreader.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{read, File};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/rzlibreader.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{BufRead, Read, Write};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt` and `result`
[INFO] [stdout]  --> src/rzlibreader.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cmp, fmt, io, mem, result};
[INFO] [stdout]   |                ^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::debug`
[INFO] [stdout]  --> src/rzlibreader.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::debug;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/lookbackbuffer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/rzlibreader.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let bytes_read = self.reader.read_until(0, &mut buf)?;
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ftext`
[INFO] [stdout]   --> src/rzlibreader.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let ftext = flg & 1 == 1;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ftext`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mtime`
[INFO] [stdout]    --> src/rzlibreader.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mtime = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xfl`
[INFO] [stdout]    --> src/rzlibreader.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let xfl = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_xfl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `os`
[INFO] [stdout]    --> src/rzlibreader.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let os = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extra`
[INFO] [stdout]    --> src/rzlibreader.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let extra = match String::from_utf8(fextra_buf) {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]    --> src/rzlibreader.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |             let file_name = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/rzlibreader.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |             let comment = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc16`
[INFO] [stdout]    --> src/rzlibreader.rs:149:17
[INFO] [stdout]     |
[INFO] [stdout] 149 |             let crc16 = u16::from_le_bytes(crc16_buf);
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc32`
[INFO] [stdout]    --> src/rzlibreader.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let crc32 = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isize`
[INFO] [stdout]    --> src/rzlibreader.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let isize = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_isize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:232:14
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:279:14
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:279:17
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Item` is never used
[INFO] [stdout]   --> src/rzlibreader.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum Item {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rzlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/rzlibreader.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File` and `read`
[INFO] [stdout]  --> src/rzlibreader.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{read, File};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/rzlibreader.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{BufRead, Read, Write};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt` and `result`
[INFO] [stdout]  --> src/rzlibreader.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cmp, fmt, io, mem, result};
[INFO] [stdout]   |                ^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::debug`
[INFO] [stdout]  --> src/rzlibreader.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::debug;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/lookbackbuffer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/rzlibreader.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File` and `read`
[INFO] [stdout]  --> src/rzlibreader.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::{read, File};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/rzlibreader.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{BufRead, Read, Write};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt` and `result`
[INFO] [stdout]  --> src/rzlibreader.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cmp, fmt, io, mem, result};
[INFO] [stdout]   |                ^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::debug`
[INFO] [stdout]  --> src/rzlibreader.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::debug;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/lookbackbuffer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/rzlibreader.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let bytes_read = self.reader.read_until(0, &mut buf)?;
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ftext`
[INFO] [stdout]   --> src/rzlibreader.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let ftext = flg & 1 == 1;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ftext`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mtime`
[INFO] [stdout]    --> src/rzlibreader.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mtime = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xfl`
[INFO] [stdout]    --> src/rzlibreader.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let xfl = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_xfl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `os`
[INFO] [stdout]    --> src/rzlibreader.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let os = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extra`
[INFO] [stdout]    --> src/rzlibreader.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let extra = match String::from_utf8(fextra_buf) {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]    --> src/rzlibreader.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |             let file_name = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/rzlibreader.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |             let comment = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc16`
[INFO] [stdout]    --> src/rzlibreader.rs:149:17
[INFO] [stdout]     |
[INFO] [stdout] 149 |             let crc16 = u16::from_le_bytes(crc16_buf);
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc32`
[INFO] [stdout]    --> src/rzlibreader.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let crc32 = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isize`
[INFO] [stdout]    --> src/rzlibreader.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let isize = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_isize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:232:14
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:279:14
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:279:17
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Item` is never used
[INFO] [stdout]   --> src/rzlibreader.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum Item {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/rzlibreader.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let bytes_read = self.reader.read_until(0, &mut buf)?;
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ftext`
[INFO] [stdout]   --> src/rzlibreader.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let ftext = flg & 1 == 1;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ftext`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mtime`
[INFO] [stdout]    --> src/rzlibreader.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mtime = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xfl`
[INFO] [stdout]    --> src/rzlibreader.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let xfl = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_xfl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `os`
[INFO] [stdout]    --> src/rzlibreader.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let os = self.reader.read_u8()?;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extra`
[INFO] [stdout]    --> src/rzlibreader.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let extra = match String::from_utf8(fextra_buf) {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]    --> src/rzlibreader.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |             let file_name = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/rzlibreader.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |             let comment = self.read_cstring()?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc16`
[INFO] [stdout]    --> src/rzlibreader.rs:149:17
[INFO] [stdout]     |
[INFO] [stdout] 149 |             let crc16 = u16::from_le_bytes(crc16_buf);
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc32`
[INFO] [stdout]    --> src/rzlibreader.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let crc32 = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isize`
[INFO] [stdout]    --> src/rzlibreader.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let isize = self.reader.read_u32()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_isize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:232:14
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/rzlibreader.rs:279:14
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]    --> src/rzlibreader.rs:279:17
[INFO] [stdout]     |
[INFO] [stdout] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Item` is never used
[INFO] [stdout]   --> src/rzlibreader.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum Item {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dump_impl` and `dump` are never used
[INFO] [stdout]    --> src/huffman.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout]  67 | impl<R: Debug + Clone> HuffmanTree<R> {
[INFO] [stdout]     | ------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn dump_impl(&self, path: &Codeword) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn dump(&self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "46a8a6c0278c836be8a22bc8571efccfb6514c7d34ebe1fb2902b2624644a6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a8a6c0278c836be8a22bc8571efccfb6514c7d34ebe1fb2902b2624644a6f1", kill_on_drop: false }`
[INFO] [stdout] 46a8a6c0278c836be8a22bc8571efccfb6514c7d34ebe1fb2902b2624644a6f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6593b57515a33c2fe2c9a0df22f08795d4dec740d31baaea855aa42355d99ad9
[INFO] running `Command { std: "docker" "start" "-a" "6593b57515a33c2fe2c9a0df22f08795d4dec740d31baaea855aa42355d99ad9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stdout] running 3 tests
[INFO] [stderr]  --> src/rzlibreader.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File` and `read`
[INFO] [stderr]  --> src/rzlibreader.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::{read, File};
[INFO] [stderr]   |               ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/rzlibreader.rs:4:30
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{BufRead, Read, Write};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `fmt` and `result`
[INFO] [stderr]  --> src/rzlibreader.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::{cmp, fmt, io, mem, result};
[INFO] [stderr]   |                ^^^           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::debug`
[INFO] [stderr]  --> src/rzlibreader.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use log::debug;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/lookbackbuffer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]   --> src/rzlibreader.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let bytes_read = self.reader.read_until(0, &mut buf)?;
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ftext`
[INFO] [stderr]   --> src/rzlibreader.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let ftext = flg & 1 == 1;
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ftext`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mtime`
[INFO] [stderr]    --> src/rzlibreader.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let mtime = self.reader.read_u32()?;
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mtime`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `xfl`
[INFO] [stderr]    --> src/rzlibreader.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 |         let xfl = self.reader.read_u8()?;
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_xfl`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `os`
[INFO] [stderr]    --> src/rzlibreader.rs:120:13
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let os = self.reader.read_u8()?;
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_os`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `extra`
[INFO] [stderr]    --> src/rzlibreader.rs:129:17
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let extra = match String::from_utf8(fextra_buf) {
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_extra`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_name`
[INFO] [stderr]    --> src/rzlibreader.rs:137:17
[INFO] [stderr]     |
[INFO] [stderr] 137 |             let file_name = self.read_cstring()?;
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `comment`
[INFO] [stderr]    --> src/rzlibreader.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |             let comment = self.read_cstring()?;
[INFO] [stderr]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `crc16`
[INFO] [stderr]    --> src/rzlibreader.rs:149:17
[INFO] [stderr]     |
[INFO] [stderr] 149 |             let crc16 = u16::from_le_bytes(crc16_buf);
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc16`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `crc32`
[INFO] [stderr]    --> src/rzlibreader.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |         let crc32 = self.reader.read_u32()?;
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_crc32`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `isize`
[INFO] [stderr]    --> src/rzlibreader.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let isize = self.reader.read_u32()?;
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_isize`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/rzlibreader.rs:232:14
[INFO] [stderr]     |
[INFO] [stderr] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stderr]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]    --> src/rzlibreader.rs:232:17
[INFO] [stderr]     |
[INFO] [stderr] 232 |         for (i, l) in clen_lengths.iter().enumerate() {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/rzlibreader.rs:279:14
[INFO] [stderr]     |
[INFO] [stderr] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stderr]     |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]    --> src/rzlibreader.rs:279:17
[INFO] [stderr]     |
[INFO] [stderr] 279 |         for (i, l) in all_lengths.iter().enumerate() {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Item` is never used
[INFO] [stderr]   --> src/rzlibreader.rs:44:6
[INFO] [stderr]    |
[INFO] [stderr] 44 | enum Item {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rzlib` (lib) generated 22 warnings (run `cargo fix --lib -p rzlib` to apply 21 suggestions)
[INFO] [stderr] warning: unused imports: `Read` and `Write`
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `dump_impl` and `dump` are never used
[INFO] [stderr]    --> src/huffman.rs:163:8
[INFO] [stderr]     |
[INFO] [stderr]  67 | impl<R: Debug + Clone> HuffmanTree<R> {
[INFO] [stderr]     | ------------------------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 163 |     fn dump_impl(&self, path: &Codeword) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 181 |     pub fn dump(&self) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rzlib` (bin "rzlib" test) generated 24 warnings (22 duplicates) (run `cargo fix --bin "rzlib" -p rzlib --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `rzlib` (lib test) generated 22 warnings (22 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rzlib-9b4079641c6a95cf)
[INFO] [stdout] test huffman::tests::test_from_rfc_1 ... ok
[INFO] [stdout] test bitreader::tests::test_read_bits ... ok
[INFO] [stdout] test huffman::tests::test_from_rfc2 ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- huffman::tests::test_from_rfc2 stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'huffman::tests::test_from_rfc2' (26) panicked at src/huffman.rs:224:13:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: Some(1)
[INFO] [stdout]  right: Some(4)
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56c1fe31df82 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x56c1fe31df82 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x56c1fe31df82 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x56c1fe31df82 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x56c1fe3327fa - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x56c1fe3327fa - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x56c1fe322d86 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x56c1fe322d86 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x56c1fe2fc71f - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x56c1fe2fc71f - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x56c1fe316269 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x56c1fe2b1cee - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x56c1fe2b1cee - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x56c1fe316422 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x56c1fe316422 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x56c1fe2fc7d8 - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x56c1fe2f1a59 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x56c1fe2fd62d - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x56c1fe332ecc - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x56c1fe332d83 - core[27de1724e4349be2]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x56c1fe32f1f8 - core[27de1724e4349be2]::panicking::assert_failed::<core[27de1724e4349be2]::option::Option<usize>, core[27de1724e4349be2]::option::Option<usize>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x56c1fe2a36a1 - rzlib[f9b034b6a35f9d11]::huffman::tests::test_from_rfc2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/huffman.rs:224:13
[INFO] [stdout]   22:     0x56c1fe2a2817 - rzlib[f9b034b6a35f9d11]::huffman::tests::test_from_rfc2::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/huffman.rs:210:24
[INFO] [stdout]   23:     0x56c1fe2a5e86 - <rzlib[f9b034b6a35f9d11]::huffman::tests::test_from_rfc2::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x56c1fe2a609b - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x56c1fe2a609b - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x56c1fe2b28fa - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x56c1fe2b28fa - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x56c1fe2b28fa - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x56c1fe2b28fa - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x56c1fe2b28fa - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x56c1fe2b28fa - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x56c1fe2b28fa - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x56c1fe2adea4 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x56c1fe2adea4 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x56c1fe2b53f2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x56c1fe2b53f2 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x56c1fe2b53f2 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x56c1fe2b53f2 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x56c1fe2b53f2 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x56c1fe2b53f2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x56c1fe2b53f2 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x56c1fe31d82f - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x56c1fe31d82f - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x79264d40caa4 - <unknown>
[INFO] [stdout]   45:     0x79264d499a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     huffman::tests::test_from_rfc2
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "6593b57515a33c2fe2c9a0df22f08795d4dec740d31baaea855aa42355d99ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6593b57515a33c2fe2c9a0df22f08795d4dec740d31baaea855aa42355d99ad9", kill_on_drop: false }`
[INFO] [stdout] 6593b57515a33c2fe2c9a0df22f08795d4dec740d31baaea855aa42355d99ad9
