[INFO] cloning repository https://github.com/auckerlab/proc_macro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/auckerlab/proc_macro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fauckerlab%2Fproc_macro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fauckerlab%2Fproc_macro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00f9272d855d6e1505f4056a050e1acd81380523
[INFO] checking auckerlab/proc_macro/00f9272d855d6e1505f4056a050e1acd81380523 against master#568b11762723b001bfa693d0f21c5dad01d4e813 for pr-148190
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fauckerlab%2Fproc_macro" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/auckerlab/proc_macro
[INFO] finished tweaking git repo https://github.com/auckerlab/proc_macro
[INFO] tweaked toml for git repo https://github.com/auckerlab/proc_macro written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/auckerlab/proc_macro on toolchain 568b11762723b001bfa693d0f21c5dad01d4e813
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/auckerlab/proc_macro 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" "+568b11762723b001bfa693d0f21c5dad01d4e813" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 110be83268c5db24478821e44bdbe11891f021b76722f6397c8c7a3beebc5441
[INFO] running `Command { std: "docker" "start" "-a" "110be83268c5db24478821e44bdbe11891f021b76722f6397c8c7a3beebc5441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "110be83268c5db24478821e44bdbe11891f021b76722f6397c8c7a3beebc5441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110be83268c5db24478821e44bdbe11891f021b76722f6397c8c7a3beebc5441", kill_on_drop: false }`
[INFO] [stdout] 110be83268c5db24478821e44bdbe11891f021b76722f6397c8c7a3beebc5441
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+568b11762723b001bfa693d0f21c5dad01d4e813" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 860c4e4eef208d87a89aa9d0f499763374a4d652ddac8ac2802fb67a3bf85052
[INFO] running `Command { std: "docker" "start" "-a" "860c4e4eef208d87a89aa9d0f499763374a4d652ddac8ac2802fb67a3bf85052", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]    Compiling comp_macro v0.1.0 (/opt/rustwide/workdir/comp_macro)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> comp_macro/src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let x = quote! {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking proc_macro_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `comp_macro::comp`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use comp_macro::comp;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.99s
[INFO] running `Command { std: "docker" "inspect" "860c4e4eef208d87a89aa9d0f499763374a4d652ddac8ac2802fb67a3bf85052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860c4e4eef208d87a89aa9d0f499763374a4d652ddac8ac2802fb67a3bf85052", kill_on_drop: false }`
[INFO] [stdout] 860c4e4eef208d87a89aa9d0f499763374a4d652ddac8ac2802fb67a3bf85052