[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] 965b19f42878311e33e252e947d3a069b62f29ac
[INFO] checking JosephPrichard/Zipper/965b19f42878311e33e252e947d3a069b62f29ac against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephPrichard%2FZipper" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JosephPrichard/Zipper on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/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-tc1/source/Cargo.toml
[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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db41f2f139b34901f732d2b08e05f7b8132f6644e35cd5d1e998d73b83538d7f
[INFO] running `Command { std: "docker" "start" "-a" "db41f2f139b34901f732d2b08e05f7b8132f6644e35cd5d1e998d73b83538d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db41f2f139b34901f732d2b08e05f7b8132f6644e35cd5d1e998d73b83538d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db41f2f139b34901f732d2b08e05f7b8132f6644e35cd5d1e998d73b83538d7f", kill_on_drop: false }`
[INFO] [stdout] db41f2f139b34901f732d2b08e05f7b8132f6644e35cd5d1e998d73b83538d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45a6d6ab0d1f6b2167fb6d5fbaa0d52d8268d772d425714feb4ddc2cfccdf8a3
[INFO] running `Command { std: "docker" "start" "-a" "45a6d6ab0d1f6b2167fb6d5fbaa0d52d8268d772d425714feb4ddc2cfccdf8a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[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 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 import: `std::collections::HashMap`
[INFO] [stdout]   --> src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use std::collections::HashMap;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     use std::fs;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compress::archive_dir`
[INFO] [stdout]   --> src/main.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     use crate::compress::archive_dir;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::decompress::unarchive_zip`
[INFO] [stdout]   --> src/main.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     use crate::decompress::unarchive_zip;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol_count` is never read
[INFO] [stdout]    --> src/compress.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub struct CodeTree {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 165 |     pub root: Box<Tree>,
[INFO] [stdout] 166 |     pub symbol_count: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_binary_file` is never used
[INFO] [stdout]    --> src/compress.rs:307:8
[INFO] [stdout]     |
[INFO] [stdout] 307 | 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:323:8
[INFO] [stdout]     |
[INFO] [stdout] 323 | 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:339:8
[INFO] [stdout]     |
[INFO] [stdout] 339 | pub fn debug_tree(node: &Box<Tree>, symbol_code: SymbolCode) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol_count` is never read
[INFO] [stdout]    --> src/compress.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub struct CodeTree {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] 165 |     pub root: Box<Tree>,
[INFO] [stdout] 166 |     pub symbol_count: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_binary_file` is never used
[INFO] [stdout]    --> src/compress.rs:307:8
[INFO] [stdout]     |
[INFO] [stdout] 307 | 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:323:8
[INFO] [stdout]     |
[INFO] [stdout] 323 | 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:339:8
[INFO] [stdout]     |
[INFO] [stdout] 339 | pub fn debug_tree(node: &Box<Tree>, symbol_code: SymbolCode) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.32s
[INFO] running `Command { std: "docker" "inspect" "45a6d6ab0d1f6b2167fb6d5fbaa0d52d8268d772d425714feb4ddc2cfccdf8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a6d6ab0d1f6b2167fb6d5fbaa0d52d8268d772d425714feb4ddc2cfccdf8a3", kill_on_drop: false }`
[INFO] [stdout] 45a6d6ab0d1f6b2167fb6d5fbaa0d52d8268d772d425714feb4ddc2cfccdf8a3