[INFO] cloning repository https://github.com/costowell/grammar-fun
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/costowell/grammar-fun" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcostowell%2Fgrammar-fun", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcostowell%2Fgrammar-fun'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dd2f54c1e4948e1cbaaf8ea10827c2011ecc149
[INFO] checking costowell/grammar-fun against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcostowell%2Fgrammar-fun" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/costowell/grammar-fun
[INFO] finished tweaking git repo https://github.com/costowell/grammar-fun
[INFO] tweaked toml for git repo https://github.com/costowell/grammar-fun written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/costowell/grammar-fun on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/costowell/grammar-fun 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72de4c7a9b47a6930c832cae76f258b25fc2829f9fcd3be769c3e9e025fe13df
[INFO] running `Command { std: "docker" "start" "-a" "72de4c7a9b47a6930c832cae76f258b25fc2829f9fcd3be769c3e9e025fe13df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72de4c7a9b47a6930c832cae76f258b25fc2829f9fcd3be769c3e9e025fe13df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72de4c7a9b47a6930c832cae76f258b25fc2829f9fcd3be769c3e9e025fe13df", kill_on_drop: false }`
[INFO] [stdout] 72de4c7a9b47a6930c832cae76f258b25fc2829f9fcd3be769c3e9e025fe13df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a842bd35bf3780300aa17e0e755dc15f1f971308c949090fee04ee4cdeb7967b
[INFO] running `Command { std: "docker" "start" "-a" "a842bd35bf3780300aa17e0e755dc15f1f971308c949090fee04ee4cdeb7967b", kill_on_drop: false }`
[INFO] [stderr]     Checking grammar-fun v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `macros::*`
[INFO] [stdout]  --> src/grammar/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use macros::*;
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `macros::*`
[INFO] [stdout]  --> src/grammar/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use macros::*;
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "a842bd35bf3780300aa17e0e755dc15f1f971308c949090fee04ee4cdeb7967b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a842bd35bf3780300aa17e0e755dc15f1f971308c949090fee04ee4cdeb7967b", kill_on_drop: false }`
[INFO] [stdout] a842bd35bf3780300aa17e0e755dc15f1f971308c949090fee04ee4cdeb7967b