[INFO] cloning repository https://github.com/fkm-X3/Ferric-CC
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fkm-X3/Ferric-CC" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkm-X3%2FFerric-CC", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkm-X3%2FFerric-CC'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ded243616dda80c0bbd081e69ce09bdd41eb957d
[INFO] checking fkm-X3/Ferric-CC against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6+rustflags=-Znext-solver=coherence for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkm-X3%2FFerric-CC" "/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/fkm-X3/Ferric-CC
[INFO] finished tweaking git repo https://github.com/fkm-X3/Ferric-CC
[INFO] tweaked toml for git repo https://github.com/fkm-X3/Ferric-CC written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fkm-X3/Ferric-CC on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fkm-X3/Ferric-CC 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847
[INFO] running `Command { std: "docker" "start" "f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Znext-solver=coherence" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking ferric-cc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `reg`
[INFO] [stdout]     --> src/backend/i686/codegen/peephole.rs:1843:33
[INFO] [stdout]      |
[INFO] [stdout] 1843 |                 LineKind::Pop { reg } if depth > 0 => {
[INFO] [stdout]      |                                 ^^^ help: try ignoring the field: `reg: _`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reg`
[INFO] [stdout]     --> src/backend/i686/codegen/peephole.rs:1843:33
[INFO] [stdout]      |
[INFO] [stdout] 1843 |                 LineKind::Pop { reg } if depth > 0 => {
[INFO] [stdout]      |                                 ^^^ help: try ignoring the field: `reg: _`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.94s
[INFO] running `Command { std: "docker" "inspect" "f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847", kill_on_drop: false }`
[INFO] [stdout] f0820b0bb55ce1a63e3fc78efae7c54686afc73f4f6ab1bc5daa8001a4d49847