[INFO] cloning repository https://github.com/JosephPrichard/Zipper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JosephPrichard/Zipper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephPrichard%2FZipper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephPrichard%2FZipper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12ffcaa76e50be91fa9e0e81f5f89019c9b946a0
[INFO] checking JosephPrichard/Zipper against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephPrichard%2FZipper" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/JosephPrichard/Zipper
[INFO] finished tweaking git repo https://github.com/JosephPrichard/Zipper
[INFO] tweaked toml for git repo https://github.com/JosephPrichard/Zipper written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JosephPrichard/Zipper on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JosephPrichard/Zipper 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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking JosephPrichard/Zipper against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephPrichard%2FZipper" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/JosephPrichard/Zipper
[INFO] finished tweaking git repo https://github.com/JosephPrichard/Zipper
[INFO] tweaked toml for git repo https://github.com/JosephPrichard/Zipper written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JosephPrichard/Zipper on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JosephPrichard/Zipper 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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d116f5ff7de15c87a5b268f234ece39a27c031de20fa34890eadf3bfde6e083
[INFO] running `Command { std: "docker" "start" "-a" "7d116f5ff7de15c87a5b268f234ece39a27c031de20fa34890eadf3bfde6e083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d116f5ff7de15c87a5b268f234ece39a27c031de20fa34890eadf3bfde6e083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d116f5ff7de15c87a5b268f234ece39a27c031de20fa34890eadf3bfde6e083", kill_on_drop: false }`
[INFO] [stdout] 7d116f5ff7de15c87a5b268f234ece39a27c031de20fa34890eadf3bfde6e083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12f98e5af4711c136557b8484452abe157fa34abc9c640debae4dbad4fdca34d
[INFO] running `Command { std: "docker" "start" "-a" "12f98e5af4711c136557b8484452abe157fa34abc9c640debae4dbad4fdca34d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking zipper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::HashMap` and `fs`
[INFO] [stdout]    --> src/compress.rs:486:15
[INFO] [stdout]     |
[INFO] [stdout] 486 |     use std::{collections::HashMap, fs};
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^  ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `archive_dir` and `unarchive_zip`
[INFO] [stdout]    --> src/compress.rs:487:27
[INFO] [stdout]     |
[INFO] [stdout] 487 |     use crate::compress::{archive_dir, unarchive_zip};
[INFO] [stdout]     |                           ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol_count` is never read
[INFO] [stdout]    --> src/compress.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub struct CodeTree {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 180 |     pub root: Box<Tree>,
[INFO] [stdout] 181 |     pub symbol_count: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_binary_file` is never used
[INFO] [stdout]    --> src/compress.rs:322:8
[INFO] [stdout]     |
[INFO] [stdout] 322 | pub fn debug_binary_file(filepath: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_tree_file` is never used
[INFO] [stdout]    --> src/compress.rs:338:8
[INFO] [stdout]     |
[INFO] [stdout] 338 | pub fn debug_tree_file(filepath: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_tree` is never used
[INFO] [stdout]    --> src/compress.rs:354:8
[INFO] [stdout]     |
[INFO] [stdout] 354 | pub fn debug_tree(node: &Box<Tree>, symbol_code: SymbolCode) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/compress.rs:161:28
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn create_code_book(label: &FileLabel) -> io::Result<CodeBook> {
[INFO] [stdout]     |                            ^^^^^^^^^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn create_code_book(label: &FileLabel) -> io::Result<CodeBook<'_>> {
[INFO] [stdout]     |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/bitwise_io.rs:236:40
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let buffer: [u8; 8] = unsafe { mem::transmute(num) };
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 236 -         let buffer: [u8; 8] = unsafe { mem::transmute(num) };
[INFO] [stdout] 236 +         let buffer: [u8; 8] = unsafe { u64::to_ne_bytes(num) };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol_count` is never read
[INFO] [stdout]    --> src/compress.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub struct CodeTree {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 180 |     pub root: Box<Tree>,
[INFO] [stdout] 181 |     pub symbol_count: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_binary_file` is never used
[INFO] [stdout]    --> src/compress.rs:322:8
[INFO] [stdout]     |
[INFO] [stdout] 322 | pub fn debug_binary_file(filepath: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_tree_file` is never used
[INFO] [stdout]    --> src/compress.rs:338:8
[INFO] [stdout]     |
[INFO] [stdout] 338 | pub fn debug_tree_file(filepath: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_tree` is never used
[INFO] [stdout]    --> src/compress.rs:354:8
[INFO] [stdout]     |
[INFO] [stdout] 354 | pub fn debug_tree(node: &Box<Tree>, symbol_code: SymbolCode) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/compress.rs:161:28
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn create_code_book(label: &FileLabel) -> io::Result<CodeBook> {
[INFO] [stdout]     |                            ^^^^^^^^^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn create_code_book(label: &FileLabel) -> io::Result<CodeBook<'_>> {
[INFO] [stdout]     |                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/bitwise_io.rs:236:40
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let buffer: [u8; 8] = unsafe { mem::transmute(num) };
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] help: replace this with
[INFO] [stdout]     |
[INFO] [stdout] 236 -         let buffer: [u8; 8] = unsafe { mem::transmute(num) };
[INFO] [stdout] 236 +         let buffer: [u8; 8] = unsafe { u64::to_ne_bytes(num) };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `Command { std: "docker" "inspect" "12f98e5af4711c136557b8484452abe157fa34abc9c640debae4dbad4fdca34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f98e5af4711c136557b8484452abe157fa34abc9c640debae4dbad4fdca34d", kill_on_drop: false }`
[INFO] [stdout] 12f98e5af4711c136557b8484452abe157fa34abc9c640debae4dbad4fdca34d
