[INFO] cloning repository https://github.com/mgrabmueller/lcubed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mgrabmueller/lcubed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgrabmueller%2Flcubed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgrabmueller%2Flcubed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3836cab824a4064d1b175345787a826fa108e1db
[INFO] checking mgrabmueller/lcubed against try#e5b0618d996a6a3941e423fd3e170737b8dbdc92 for pr-151822
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgrabmueller%2Flcubed" "/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/mgrabmueller/lcubed
[INFO] finished tweaking git repo https://github.com/mgrabmueller/lcubed
[INFO] tweaked toml for git repo https://github.com/mgrabmueller/lcubed written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mgrabmueller/lcubed on toolchain e5b0618d996a6a3941e423fd3e170737b8dbdc92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mgrabmueller/lcubed 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" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking mgrabmueller/lcubed against try#e5b0618d996a6a3941e423fd3e170737b8dbdc92 for pr-151822
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgrabmueller%2Flcubed" "/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/mgrabmueller/lcubed
[INFO] finished tweaking git repo https://github.com/mgrabmueller/lcubed
[INFO] tweaked toml for git repo https://github.com/mgrabmueller/lcubed written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mgrabmueller/lcubed on toolchain e5b0618d996a6a3941e423fd3e170737b8dbdc92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mgrabmueller/lcubed 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" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57ebaac9b25c40121025f088ebbc5294671cbcfd5b84c76bc889cc94c17a5c21
[INFO] running `Command { std: "docker" "start" "-a" "57ebaac9b25c40121025f088ebbc5294671cbcfd5b84c76bc889cc94c17a5c21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57ebaac9b25c40121025f088ebbc5294671cbcfd5b84c76bc889cc94c17a5c21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57ebaac9b25c40121025f088ebbc5294671cbcfd5b84c76bc889cc94c17a5c21", kill_on_drop: false }`
[INFO] [stdout] 57ebaac9b25c40121025f088ebbc5294671cbcfd5b84c76bc889cc94c17a5c21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+e5b0618d996a6a3941e423fd3e170737b8dbdc92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e0f53769ce2f54c3bccb35aa8a34aa2d82021ef52fbbf9ab05603f51e0d8413
[INFO] running `Command { std: "docker" "start" "-a" "7e0f53769ce2f54c3bccb35aa8a34aa2d82021ef52fbbf9ab05603f51e0d8413", kill_on_drop: false }`
[INFO] [stderr]     Checking lcubed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `NodeKind` is never used
[INFO] [stdout]  --> src/ast.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum NodeKind<'src, Anno> {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/ast.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Node<'src, Anno> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ShowState` is never constructed
[INFO] [stdout]   --> src/ast.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct ShowState {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Show` is never used
[INFO] [stdout]   --> src/ast.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub trait Show {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodeKind` is never used
[INFO] [stdout]  --> src/ast.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum NodeKind<'src, Anno> {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/ast.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Node<'src, Anno> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ShowState` is never constructed
[INFO] [stdout]   --> src/ast.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct ShowState {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Show` is never used
[INFO] [stdout]   --> src/ast.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub trait Show {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/scanner.rs:330:19
[INFO] [stdout]     |
[INFO] [stdout] 330 |     fn run(input: &str) -> Result<Vec<Token>, ScanError> {
[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] 330 |     fn run(input: &str) -> Result<Vec<Token<'_>>, ScanError> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "7e0f53769ce2f54c3bccb35aa8a34aa2d82021ef52fbbf9ab05603f51e0d8413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e0f53769ce2f54c3bccb35aa8a34aa2d82021ef52fbbf9ab05603f51e0d8413", kill_on_drop: false }`
[INFO] [stdout] 7e0f53769ce2f54c3bccb35aa8a34aa2d82021ef52fbbf9ab05603f51e0d8413