[INFO] cloning repository https://github.com/jreppnow/fusm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jreppnow/fusm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjreppnow%2Ffusm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjreppnow%2Ffusm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0a75a84dd2d24ef9392294ce71f5bf93d478747
[INFO] checking jreppnow/fusm against try#e5b0618d996a6a3941e423fd3e170737b8dbdc92 for pr-151822
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjreppnow%2Ffusm" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jreppnow/fusm
[INFO] finished tweaking git repo https://github.com/jreppnow/fusm
[INFO] tweaked toml for git repo https://github.com/jreppnow/fusm written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jreppnow/fusm 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/jreppnow/fusm 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e2f377d3664ea80080ebc617ef17682150ae74a07b7b42f805ee66883f0a9b97
[INFO] running `Command { std: "docker" "start" "-a" "e2f377d3664ea80080ebc617ef17682150ae74a07b7b42f805ee66883f0a9b97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2f377d3664ea80080ebc617ef17682150ae74a07b7b42f805ee66883f0a9b97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f377d3664ea80080ebc617ef17682150ae74a07b7b42f805ee66883f0a9b97", kill_on_drop: false }`
[INFO] [stdout] e2f377d3664ea80080ebc617ef17682150ae74a07b7b42f805ee66883f0a9b97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 21abda7e8f27c5a6d2b199b62f04152ec6f75fecb0422adf7ac7a7f6ae94b64e
[INFO] running `Command { std: "docker" "start" "-a" "21abda7e8f27c5a6d2b199b62f04152ec6f75fecb0422adf7ac7a7f6ae94b64e", kill_on_drop: false }`
[INFO] [stderr]     Checking fusm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `SetLocal` is never constructed
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | enum Instruction {
[INFO] [stdout]    |      ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 40 |     SetLocal(usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `label` is never read
[INFO] [stdout]    --> src/main.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 227 | struct FunctionDeclaration {
[INFO] [stdout]     |        ------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 232 |     label: Option<String>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FunctionDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `declaration` is never read
[INFO] [stdout]    --> src/main.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 236 | struct FunctionFrame {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 237 |     declaration: Arc<FunctionDeclaration>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FunctionFrame` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SetLocal` is never constructed
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | enum Instruction {
[INFO] [stdout]    |      ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 40 |     SetLocal(usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `label` is never read
[INFO] [stdout]    --> src/main.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 227 | struct FunctionDeclaration {
[INFO] [stdout]     |        ------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 232 |     label: Option<String>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FunctionDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `declaration` is never read
[INFO] [stdout]    --> src/main.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 236 | struct FunctionFrame {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 237 |     declaration: Arc<FunctionDeclaration>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FunctionFrame` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "21abda7e8f27c5a6d2b199b62f04152ec6f75fecb0422adf7ac7a7f6ae94b64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21abda7e8f27c5a6d2b199b62f04152ec6f75fecb0422adf7ac7a7f6ae94b64e", kill_on_drop: false }`
[INFO] [stdout] 21abda7e8f27c5a6d2b199b62f04152ec6f75fecb0422adf7ac7a7f6ae94b64e