[INFO] cloning repository https://github.com/embassy-rs/docserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/embassy-rs/docserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fembassy-rs%2Fdocserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fembassy-rs%2Fdocserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54e1aba0c0772b5b00d587b49bcf12c8859c9278
[INFO] testing embassy-rs/docserver against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fembassy-rs%2Fdocserver" "/workspace/builds/worker-59/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/embassy-rs/docserver on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/embassy-rs/docserver
[INFO] finished tweaking git repo https://github.com/embassy-rs/docserver
[INFO] tweaked toml for git repo https://github.com/embassy-rs/docserver written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate git repo https://github.com/embassy-rs/docserver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3994a8912419a654568f77894e61db8baad408e26d8dae2782b786b0ee1c8d90
[INFO] running `Command { std: "docker" "start" "-a" "3994a8912419a654568f77894e61db8baad408e26d8dae2782b786b0ee1c8d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3994a8912419a654568f77894e61db8baad408e26d8dae2782b786b0ee1c8d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3994a8912419a654568f77894e61db8baad408e26d8dae2782b786b0ee1c8d90", kill_on_drop: false }`
[INFO] [stdout] 3994a8912419a654568f77894e61db8baad408e26d8dae2782b786b0ee1c8d90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c80803b6ec05258cf97879abdb4e24ee4b22bcd65b5ea43a481473e9b75c5510
[INFO] running `Command { std: "docker" "start" "-a" "c80803b6ec05258cf97879abdb4e24ee4b22bcd65b5ea43a481473e9b75c5510", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.3
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling zstd-safe v4.1.3+zstd.1.5.1
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling memmap2 v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling block-buffer v0.10.0
[INFO] [stderr]    Compiling crypto-common v0.1.1
[INFO] [stderr]    Compiling digest v0.10.1
[INFO] [stderr]    Compiling sha2 v0.10.1
[INFO] [stderr]    Compiling zstd-sys v1.6.2+zstd.1.5.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.15.0
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling h2 v0.3.10
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling hyper v0.14.16
[INFO] [stderr]    Compiling zstd v0.9.2+zstd.1.5.1
[INFO] [stderr]    Compiling docserver2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]   --> src/bin/server.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{env, fs};
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::from_fn`
[INFO] [stdout]  --> src/bin/../zup/read.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::from_fn;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `args`
[INFO] [stdout]  --> src/bin/builder.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env::{self, args};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Path`
[INFO] [stdout]  --> src/bin/builder.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::from_fn`
[INFO] [stdout]  --> src/bin/../zup/read.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::from_fn;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/server.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |             _ => self.resp_404(),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/bin/server.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let path = self.crates_path.join(krate);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `krate`
[INFO] [stdout]    --> src/bin/server.rs:128:15
[INFO] [stdout]     |
[INFO] [stdout] 128 |             &[krate] => {
[INFO] [stdout]     |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_krate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `krate`
[INFO] [stdout]    --> src/bin/server.rs:134:15
[INFO] [stdout]     |
[INFO] [stdout] 134 |             &[krate, version] => {
[INFO] [stdout]     |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_krate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/bin/server.rs:134:22
[INFO] [stdout]     |
[INFO] [stdout] 134 |             &[krate, version] => {
[INFO] [stdout]     |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/bin/builder.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |         data_filter: Box::new(|path, data| {}),
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/bin/builder.rs:60:38
[INFO] [stdout]    |
[INFO] [stdout] 60 |         data_filter: Box::new(|path, data| {}),
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Reader`
[INFO] [stdout]   --> src/bin/../zup/read.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Reader {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../zup/read.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new<P: AsRef<Path>>(path: P) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_range`
[INFO] [stdout]   --> src/bin/../zup/read.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn read_range(m: &Mmap, r: layout::Range) -> &[u8] {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_node`
[INFO] [stdout]   --> src/bin/../zup/read.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn read_node(&self, node: layout::Node) -> io::Result<Cow<[u8]>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `root_node`
[INFO] [stdout]   --> src/bin/../zup/read.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn root_node(&self) -> Node<'_> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `open`
[INFO] [stdout]   --> src/bin/../zup/read.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn open(&self, path: &[&str]) -> io::Result<Node<'_>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/bin/../zup/read.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn read(&self, path: &[&str]) -> io::Result<Cow<[u8]>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Node`
[INFO] [stdout]    --> src/bin/../zup/read.rs:107:10
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub enum Node<'a> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `File`
[INFO] [stdout]    --> src/bin/../zup/read.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct File<'a> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]    --> src/bin/../zup/read.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn read(&self) -> io::Result<Cow<'a, [u8]>> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Directory`
[INFO] [stdout]    --> src/bin/../zup/read.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Directory<'a> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `children`
[INFO] [stdout]    --> src/bin/../zup/read.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn children(&self) -> io::Result<Vec<(String, Node<'a>)>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ByteReader`
[INFO] [stdout]    --> src/bin/../zup/read.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 | struct ByteReader<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/bin/../zup/read.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn new(data: &'a [u8]) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eof`
[INFO] [stdout]    --> src/bin/../zup/read.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn eof(&self) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]    --> src/bin/../zup/read.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn read<const N: usize>(&self) -> Result<[u8; N], ReadError> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u8`
[INFO] [stdout]    --> src/bin/../zup/read.rs:188:8
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn read_u8(&self) -> Result<u8, ReadError> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u16`
[INFO] [stdout]    --> src/bin/../zup/read.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn read_u16(&self) -> Result<u16, ReadError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u32`
[INFO] [stdout]    --> src/bin/../zup/read.rs:194:8
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn read_u32(&self) -> Result<u32, ReadError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u64`
[INFO] [stdout]    --> src/bin/../zup/read.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn read_u64(&mut self) -> Result<u64, ReadError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_slice`
[INFO] [stdout]    --> src/bin/../zup/read.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 |     fn read_slice(&self, len: usize) -> Result<&[u8], ReadError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_slice_len8`
[INFO] [stdout]    --> src/bin/../zup/read.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 207 |     fn read_slice_len8(&self) -> Result<&[u8], ReadError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_slice_len16`
[INFO] [stdout]    --> src/bin/../zup/read.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn read_slice_len16(&self) -> Result<&[u8], ReadError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `node_count`
[INFO] [stdout]   --> src/bin/../zup/write.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn node_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn from_bytes(b: [u8; Self::LEN]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn from_bytes(b: [u8; Self::LEN]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn from_bytes(b: [u8; Self::LEN]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/builder.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io_error_more)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u16`
[INFO] [stdout]    --> src/bin/../zup/read.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn read_u16(&self) -> Result<u16, ReadError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u32`
[INFO] [stdout]    --> src/bin/../zup/read.rs:194:8
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn read_u32(&self) -> Result<u32, ReadError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u64`
[INFO] [stdout]    --> src/bin/../zup/read.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn read_u64(&mut self) -> Result<u64, ReadError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_slice_len16`
[INFO] [stdout]    --> src/bin/../zup/read.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn read_slice_len16(&self) -> Result<&[u8], ReadError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `COMPRESSION_LEVEL`
[INFO] [stdout]   --> src/bin/../zup/write.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const COMPRESSION_LEVEL: i32 = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DICTIONARY_SIZE`
[INFO] [stdout]   --> src/bin/../zup/write.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const DICTIONARY_SIZE: usize = 163840;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Node`
[INFO] [stdout]   --> src/bin/../zup/write.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum Node {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Directory`
[INFO] [stdout]   --> src/bin/../zup/write.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Directory {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DirectoryEntry`
[INFO] [stdout]   --> src/bin/../zup/write.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct DirectoryEntry {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `File`
[INFO] [stdout]   --> src/bin/../zup/write.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct File {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hash`
[INFO] [stdout]   --> src/bin/../zup/write.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn hash(&self) -> [u8; 32] {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PackConfig`
[INFO] [stdout]   --> src/bin/../zup/write.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct PackConfig {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Tree`
[INFO] [stdout]   --> src/bin/../zup/write.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Tree {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/../zup/write.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `node_count`
[INFO] [stdout]   --> src/bin/../zup/write.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn node_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_id`
[INFO] [stdout]   --> src/bin/../zup/write.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn gen_id(&mut self) -> NodeId {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pack`
[INFO] [stdout]   --> src/bin/../zup/write.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn pack(&mut self, path: &Path, config: &PackConfig) -> io::Result<NodeId> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_node`
[INFO] [stdout]    --> src/bin/../zup/write.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn add_node(&mut self, node: Node) -> NodeId {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]    --> src/bin/../zup/write.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn write(&mut self, path: &Path, root: NodeId) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Writer`
[INFO] [stdout]    --> src/bin/../zup/write.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 | struct Writer<'a> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]    --> src/bin/../zup/write.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn write(&mut self, node_id: NodeId) -> io::Result<layout::Node> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_node`
[INFO] [stdout]    --> src/bin/../zup/write.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 |     fn write_node(&mut self, buf: &[u8]) -> io::Result<layout::Node> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_data`
[INFO] [stdout]    --> src/bin/../zup/write.rs:216:8
[INFO] [stdout]     |
[INFO] [stdout] 216 |     fn write_data(&mut self, buf: &[u8]) -> io::Result<layout::Range> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_bytes`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn to_bytes(self) -> [u8; Self::LEN] {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_bytes`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn to_bytes(self) -> [u8; Self::LEN] {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAGIC`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub const MAGIC: u32 = 0x2170755a;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VERSION`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub const VERSION: u32 = 1;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_bytes`
[INFO] [stdout]   --> src/bin/../zup/layout.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn to_bytes(self) -> [u8; Self::LEN] {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_crate_versions`
[INFO] [stdout]   --> src/bin/server.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn list_crate_versions(&self, krate: &str) -> io::Result<Vec<String>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/server.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io_error_more)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `docserver2` due to 2 previous errors; 32 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c80803b6ec05258cf97879abdb4e24ee4b22bcd65b5ea43a481473e9b75c5510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c80803b6ec05258cf97879abdb4e24ee4b22bcd65b5ea43a481473e9b75c5510", kill_on_drop: false }`
[INFO] [stdout] c80803b6ec05258cf97879abdb4e24ee4b22bcd65b5ea43a481473e9b75c5510