[INFO] fetching crate u_u 0.0.0...
[INFO] checking u_u-0.0.0 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate u_u 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate u_u 0.0.0 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate u_u 0.0.0
[INFO] finished tweaking crates.io crate u_u 0.0.0
[INFO] tweaked toml for crates.io crate u_u 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate u_u 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1643a715f0edffb0b7a093daf34eb511d0bf6fa0725b0ca539a9c241b5e8df5
[INFO] running `Command { std: "docker" "start" "-a" "e1643a715f0edffb0b7a093daf34eb511d0bf6fa0725b0ca539a9c241b5e8df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1643a715f0edffb0b7a093daf34eb511d0bf6fa0725b0ca539a9c241b5e8df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1643a715f0edffb0b7a093daf34eb511d0bf6fa0725b0ca539a9c241b5e8df5", kill_on_drop: false }`
[INFO] [stdout] e1643a715f0edffb0b7a093daf34eb511d0bf6fa0725b0ca539a9c241b5e8df5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc45e534ed2ba651aade1e0e68ccbdfe8cb3435a67b8d1c31e8b0bef915b6c4e
[INFO] running `Command { std: "docker" "start" "-a" "bc45e534ed2ba651aade1e0e68ccbdfe8cb3435a67b8d1c31e8b0bef915b6c4e", kill_on_drop: false }`
[INFO] [stderr]     Checking u_u v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "bc45e534ed2ba651aade1e0e68ccbdfe8cb3435a67b8d1c31e8b0bef915b6c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc45e534ed2ba651aade1e0e68ccbdfe8cb3435a67b8d1c31e8b0bef915b6c4e", kill_on_drop: false }`
[INFO] [stdout] bc45e534ed2ba651aade1e0e68ccbdfe8cb3435a67b8d1c31e8b0bef915b6c4e