[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#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxyzzyz%2Frzlib" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xyzzyz/rzlib on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6-tc1/source/Cargo.toml
[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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c6d688b07f726a405cd271e64c8033c207d0ec040bd89b8256576e4b7fadfe6
[INFO] running `Command { std: "docker" "start" "-a" "9c6d688b07f726a405cd271e64c8033c207d0ec040bd89b8256576e4b7fadfe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c6d688b07f726a405cd271e64c8033c207d0ec040bd89b8256576e4b7fadfe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c6d688b07f726a405cd271e64c8033c207d0ec040bd89b8256576e4b7fadfe6", kill_on_drop: false }`
[INFO] [stdout] 9c6d688b07f726a405cd271e64c8033c207d0ec040bd89b8256576e4b7fadfe6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b39e5afa24e30b80a39f2b055c8f5e9fb0e486a035c57f5b1589d76b80b582d
[INFO] running `Command { std: "docker" "start" "-a" "9b39e5afa24e30b80a39f2b055c8f5e9fb0e486a035c57f5b1589d76b80b582d", 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `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`, `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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `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`, `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`, `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)]` 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)]` 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] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "9b39e5afa24e30b80a39f2b055c8f5e9fb0e486a035c57f5b1589d76b80b582d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b39e5afa24e30b80a39f2b055c8f5e9fb0e486a035c57f5b1589d76b80b582d", kill_on_drop: false }`
[INFO] [stdout] 9b39e5afa24e30b80a39f2b055c8f5e9fb0e486a035c57f5b1589d76b80b582d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f642d506fcc3043d29dd514cce9da80a0199a1e75503156da56d988a68ba6d2a
[INFO] running `Command { std: "docker" "start" "-a" "f642d506fcc3043d29dd514cce9da80a0199a1e75503156da56d988a68ba6d2a", 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `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`, `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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `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 imports: `File`, `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 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`, `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 imports: `fmt`, `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: `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::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`, `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)]` 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: `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)]` 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: `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: `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: `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: `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: `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: 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)]` on by default
[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)]` 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] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "f642d506fcc3043d29dd514cce9da80a0199a1e75503156da56d988a68ba6d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f642d506fcc3043d29dd514cce9da80a0199a1e75503156da56d988a68ba6d2a", kill_on_drop: false }`
[INFO] [stdout] f642d506fcc3043d29dd514cce9da80a0199a1e75503156da56d988a68ba6d2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d1595c417d47806b824fb5019af1b88d292e2a1e93f1051ab6ff1fd11caf4bff
[INFO] running `Command { std: "docker" "start" "-a" "d1595c417d47806b824fb5019af1b88d292e2a1e93f1051ab6ff1fd11caf4bff", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::error::Error`
[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)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File`, `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`, `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)]` 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)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rzlib` (lib) generated 22 warnings (run `cargo fix --lib -p rzlib` to apply 6 suggestions)
[INFO] [stderr] warning: unused imports: `Read`, `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" --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 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rzlib-bfed5b15797eab92)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test bitreader::tests::test_read_bits ... ok
[INFO] [stdout] test huffman::tests::test_from_rfc_1 ... 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] thread 'huffman::tests::test_from_rfc2' 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:     0x564af6cc13b5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x564af6cc13b5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x564af6cc13b5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x564af6cc13b5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x564af6ce7bfb - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x564af6ce7bfb - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x564af6cbebef - std::io::Write::write_fmt::h8d0c47c662cad79c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x564af6cc118e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x564af6cc118e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x564af6cc2bb9 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x564af6cc287e - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:295:9
[INFO] [stdout]   11:     0x564af6c939ea - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::he5eacdef44c8728f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   12:     0x564af6c939ea - test::test_main::{{closure}}::h0ec9aed229e79095
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:137:21
[INFO] [stdout]   13:     0x564af6cc31bb - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcbd0d80e1ad4e4f9
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   14:     0x564af6cc31bb - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:799:13
[INFO] [stdout]   15:     0x564af6cc2f34 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   16:     0x564af6cc1879 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x564af6cc2c67 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   18:     0x564af6c54843 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x564af6c54c2e - core::panicking::assert_failed_inner::h01c8f7f0c1caba58
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:408:17
[INFO] [stdout]   20:     0x564af6c5a8fe - core::panicking::assert_failed::h8a368e781617df78
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:363:5
[INFO] [stdout]   21:     0x564af6c5db4f - rzlib::huffman::tests::test_from_rfc2::h88a78ce836d4d50f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/huffman.rs:224:13
[INFO] [stdout]   22:     0x564af6c5d5b7 - rzlib::huffman::tests::test_from_rfc2::{{closure}}::haa421341a90f8590
[INFO] [stdout]                                at /opt/rustwide/workdir/src/huffman.rs:210:24
[INFO] [stdout]   23:     0x564af6c56646 - core::ops::function::FnOnce::call_once::h215f5fec43a7d48b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x564af6c983cb - core::ops::function::FnOnce::call_once::h2e43a8f6f3d94b99
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x564af6c983cb - test::__rust_begin_short_backtrace::h214c9f2d2d3fee90
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:625:18
[INFO] [stdout]   26:     0x564af6c97ad1 - test::run_test_in_process::{{closure}}::h510b7ba7990692a5
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:60
[INFO] [stdout]   27:     0x564af6c97ad1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4157186197a93871
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x564af6c97ad1 - std::panicking::try::do_call::h1bf2463bccd4b28c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   29:     0x564af6c97ad1 - std::panicking::try::hd6d4808c9fab4fa5
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   30:     0x564af6c97ad1 - std::panic::catch_unwind::hd5641d97d123f9f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   31:     0x564af6c97ad1 - test::run_test_in_process::hc273b71c8b878a4c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:27
[INFO] [stdout]   32:     0x564af6c97ad1 - test::run_test::{{closure}}::h6838df834eb8467e
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:569:43
[INFO] [stdout]   33:     0x564af6c60494 - test::run_test::{{closure}}::h608b98ecff5665fb
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:599:41
[INFO] [stdout]   34:     0x564af6c60494 - std::sys_common::backtrace::__rust_begin_short_backtrace::hdc4182b97d1042e9
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x564af6c64ec2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h571773fd21d674c8
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:542:17
[INFO] [stdout]   36:     0x564af6c64ec2 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdcd384cf2fa70ba3
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x564af6c64ec2 - std::panicking::try::do_call::h4f1a44bd81423be1
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   38:     0x564af6c64ec2 - std::panicking::try::h5e02afcb81dcd361
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   39:     0x564af6c64ec2 - std::panic::catch_unwind::h022f75775bfd8c45
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   40:     0x564af6c64ec2 - std::thread::Builder::spawn_unchecked_::{{closure}}::hf5a62e9e4e6df1f8
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:541:30
[INFO] [stdout]   41:     0x564af6c64ec2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6d56360aeb9509a7
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x564af6cc739b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7a343dc551c06baa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   43:     0x564af6cc739b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h30b8111cbaa644f3
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   44:     0x564af6cc739b - std::sys::pal::unix::thread::Thread::new::thread_start::h7404e134e61e7a11
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f17217b3ac3 - <unknown>
[INFO] [stdout]   46:     0x7f1721844a04 - __clone
[INFO] [stdout]   47:                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 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "d1595c417d47806b824fb5019af1b88d292e2a1e93f1051ab6ff1fd11caf4bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1595c417d47806b824fb5019af1b88d292e2a1e93f1051ab6ff1fd11caf4bff", kill_on_drop: false }`
[INFO] [stdout] d1595c417d47806b824fb5019af1b88d292e2a1e93f1051ab6ff1fd11caf4bff
