[INFO] cloning repository https://github.com/ingobeans/rustyhummus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ingobeans/rustyhummus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fingobeans%2Frustyhummus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fingobeans%2Frustyhummus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5ce9156a7c9dd5caa1a98a41b4b16e7611158fa
[INFO] checking ingobeans/rustyhummus against try#47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268 for pr-149058
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fingobeans%2Frustyhummus" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ingobeans/rustyhummus
[INFO] finished tweaking git repo https://github.com/ingobeans/rustyhummus
[INFO] tweaked toml for git repo https://github.com/ingobeans/rustyhummus written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ingobeans/rustyhummus on toolchain 47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ingobeans/rustyhummus 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" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29e7746b328a3562adde6bc1811032b933321f4237a7b417419fd4fcd71d7c22
[INFO] running `Command { std: "docker" "start" "-a" "29e7746b328a3562adde6bc1811032b933321f4237a7b417419fd4fcd71d7c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29e7746b328a3562adde6bc1811032b933321f4237a7b417419fd4fcd71d7c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e7746b328a3562adde6bc1811032b933321f4237a7b417419fd4fcd71d7c22", kill_on_drop: false }`
[INFO] [stdout] 29e7746b328a3562adde6bc1811032b933321f4237a7b417419fd4fcd71d7c22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+47eaa3b85fbe5fa2b3b731b5fecdc5954cbfc268" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79dc5ffe0b603ecf2e814aa4e01d83d70a23b8a0a94ac8fdfdd48518a4d162e2
[INFO] running `Command { std: "docker" "start" "-a" "79dc5ffe0b603ecf2e814aa4e01d83d70a23b8a0a94ac8fdfdd48518a4d162e2", kill_on_drop: false }`
[INFO] [stderr]     Checking rustyhummus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Directory` is never constructed
[INFO] [stdout]  --> src/filesystem.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Item {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] 5 |     Directory(Directory),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_dir` and `get_dir` are never used
[INFO] [stdout]   --> src/filesystem.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Directory {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn add_dir(&mut self, name: String, dir: Directory) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn get_dir(&self, name: String) -> Option<&Directory> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_bytes` is never used
[INFO] [stdout]   --> src/filesystem.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl FileContents {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 44 |     pub fn read_bytes(&self) -> &Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Directory` is never constructed
[INFO] [stdout]  --> src/filesystem.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Item {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] 5 |     Directory(Directory),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_dir` and `get_dir` are never used
[INFO] [stdout]   --> src/filesystem.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Directory {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn add_dir(&mut self, name: String, dir: Directory) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn get_dir(&self, name: String) -> Option<&Directory> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_bytes` is never used
[INFO] [stdout]   --> src/filesystem.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl FileContents {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 44 |     pub fn read_bytes(&self) -> &Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "79dc5ffe0b603ecf2e814aa4e01d83d70a23b8a0a94ac8fdfdd48518a4d162e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79dc5ffe0b603ecf2e814aa4e01d83d70a23b8a0a94ac8fdfdd48518a4d162e2", kill_on_drop: false }`
[INFO] [stdout] 79dc5ffe0b603ecf2e814aa4e01d83d70a23b8a0a94ac8fdfdd48518a4d162e2