[INFO] cloning repository https://github.com/moirey/rust_array
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moirey/rust_array" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoirey%2Frust_array", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoirey%2Frust_array'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7ec1322a026520f1e6412092ea974ee78f89193
[INFO] checking moirey/rust_array against 165655a2f1981fef27b31c547ad7631979fc5139 for pr-160235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoirey%2Frust_array" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/moirey/rust_array
[INFO] finished tweaking git repo https://github.com/moirey/rust_array
[INFO] tweaked toml for git repo https://github.com/moirey/rust_array written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/moirey/rust_array on toolchain 165655a2f1981fef27b31c547ad7631979fc5139
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/moirey/rust_array 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" "+165655a2f1981fef27b31c547ad7631979fc5139" "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 moirey/rust_array against 165655a2f1981fef27b31c547ad7631979fc5139 for pr-160235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoirey%2Frust_array" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/moirey/rust_array
[INFO] finished tweaking git repo https://github.com/moirey/rust_array
[INFO] tweaked toml for git repo https://github.com/moirey/rust_array written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/moirey/rust_array on toolchain 165655a2f1981fef27b31c547ad7631979fc5139
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/moirey/rust_array 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" "+165655a2f1981fef27b31c547ad7631979fc5139" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.122
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426
[INFO] running `Command { std: "docker" "start" "0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_array v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:151:3
[INFO] [stdout]     |
[INFO] [stdout] 151 | /   ///
[INFO] [stdout] 152 | |   /// let a = vec![0u8, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
[INFO] [stdout] 153 | |   /// let c: &[u8] = &a; // works because impl Deref for Vec<T> with Target = [T]
[INFO] [stdout] 154 | |   /// let d: &[u8] = a.as_ref(); // works because impl<T> AsRef<[T]> for Vec<T>
[INFO] [stdout] 155 | |   /// 
[INFO] [stdout]     | |______^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     let buf = &[0x41u8, 0x41u8, 0x42u8];
[INFO] [stdout]     |     ------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `vec`
[INFO] [stdout]    --> src/main.rs:213:14
[INFO] [stdout]     |
[INFO] [stdout] 213 | macro_rules! vec {
[INFO] [stdout]     |              ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:151:3
[INFO] [stdout]     |
[INFO] [stdout] 151 | /   ///
[INFO] [stdout] 152 | |   /// let a = vec![0u8, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
[INFO] [stdout] 153 | |   /// let c: &[u8] = &a; // works because impl Deref for Vec<T> with Target = [T]
[INFO] [stdout] 154 | |   /// let d: &[u8] = a.as_ref(); // works because impl<T> AsRef<[T]> for Vec<T>
[INFO] [stdout] 155 | |   /// 
[INFO] [stdout]     | |______^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     let buf = &[0x41u8, 0x41u8, 0x42u8];
[INFO] [stdout]     |     ------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `vec`
[INFO] [stdout]    --> src/main.rs:213:14
[INFO] [stdout]     |
[INFO] [stdout] 213 | macro_rules! vec {
[INFO] [stdout]     |              ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:148:7
[INFO] [stdout]     |
[INFO] [stdout] 148 |   let b = &a; // b: &Vec<u8>
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/main.rs:149:7
[INFO] [stdout]     |
[INFO] [stdout] 149 |   let c: &[u8] = &a; // c: &[u8]
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:148:7
[INFO] [stdout]     |
[INFO] [stdout] 148 |   let b = &a; // b: &Vec<u8>
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/main.rs:149:7
[INFO] [stdout]     |
[INFO] [stdout] 149 |   let c: &[u8] = &a; // c: &[u8]
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426", kill_on_drop: false }`
[INFO] [stdout] 0ca52194f087ffc1e46a0f372e6481cf1ef900f9d47fded4052874f43f264426
