[INFO] cloning repository https://github.com/tychedelia/rustrover_proc_macro_bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tychedelia/rustrover_proc_macro_bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftychedelia%2Frustrover_proc_macro_bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftychedelia%2Frustrover_proc_macro_bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1b351aff8d6edfa4c17cfe898b52279026f750d
[INFO] checking tychedelia/rustrover_proc_macro_bug against try#e117153a45c546e883c1f91d82611775fcaeffe0 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftychedelia%2Frustrover_proc_macro_bug" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tychedelia/rustrover_proc_macro_bug
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/tychedelia/rustrover_proc_macro_bug
[INFO] tweaked toml for git repo https://github.com/tychedelia/rustrover_proc_macro_bug written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tychedelia/rustrover_proc_macro_bug on toolchain e117153a45c546e883c1f91d82611775fcaeffe0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tychedelia/rustrover_proc_macro_bug 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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "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 tychedelia/rustrover_proc_macro_bug against try#e117153a45c546e883c1f91d82611775fcaeffe0 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftychedelia%2Frustrover_proc_macro_bug" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tychedelia/rustrover_proc_macro_bug
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/tychedelia/rustrover_proc_macro_bug
[INFO] tweaked toml for git repo https://github.com/tychedelia/rustrover_proc_macro_bug written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tychedelia/rustrover_proc_macro_bug on toolchain e117153a45c546e883c1f91d82611775fcaeffe0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tychedelia/rustrover_proc_macro_bug 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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "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 syn v2.0.75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e767f8ec3a5dae573a30ea4953c0907163776886432b7bf6d6e131dd620ac48
[INFO] running `Command { std: "docker" "start" "-a" "3e767f8ec3a5dae573a30ea4953c0907163776886432b7bf6d6e131dd620ac48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e767f8ec3a5dae573a30ea4953c0907163776886432b7bf6d6e131dd620ac48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e767f8ec3a5dae573a30ea4953c0907163776886432b7bf6d6e131dd620ac48", kill_on_drop: false }`
[INFO] [stdout] 3e767f8ec3a5dae573a30ea4953c0907163776886432b7bf6d6e131dd620ac48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df5d73d8745e13345cb6ee21d0c294a018f0df96e3b91462c6f738c53a18357d
[INFO] running `Command { std: "docker" "start" "-a" "df5d73d8745e13345cb6ee21d0c294a018f0df96e3b91462c6f738c53a18357d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stderr]     Checking syn v2.0.75
[INFO] [stderr]     Checking rustrover_proc_macro_bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/lib.rs:3:84
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::{parse_macro_input, DeriveInput, Ident, parse::Parse, parse::ParseStream, Token, parenthesized};
[INFO] [stdout]   |                                                                                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/lib.rs:3:84
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::{parse_macro_input, DeriveInput, Ident, parse::Parse, parse::ParseStream, Token, parenthesized};
[INFO] [stdout]   |                                                                                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/lib.rs:3:84
[INFO] [stdout]   |
[INFO] [stdout] 3 | use syn::{parse_macro_input, DeriveInput, Ident, parse::Parse, parse::ParseStream, Token, parenthesized};
[INFO] [stdout]   |                                                                                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/test.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct AnotherStruct(u32);
[INFO] [stdout]    |        ------------- ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `Command { std: "docker" "inspect" "df5d73d8745e13345cb6ee21d0c294a018f0df96e3b91462c6f738c53a18357d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df5d73d8745e13345cb6ee21d0c294a018f0df96e3b91462c6f738c53a18357d", kill_on_drop: false }`
[INFO] [stdout] df5d73d8745e13345cb6ee21d0c294a018f0df96e3b91462c6f738c53a18357d