[INFO] fetching crate flagset 0.4.4...
[INFO] checking flagset-0.4.4 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate flagset 0.4.4 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate flagset 0.4.4 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate flagset 0.4.4
[INFO] finished tweaking crates.io crate flagset 0.4.4
[INFO] tweaked toml for crates.io crate flagset 0.4.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a44f4eca4fb129d213a1f1ba4c13b366a4d4ff0db030c6bfd0e1d7dd74bd7ebb
[INFO] running `Command { std: "docker" "start" "-a" "a44f4eca4fb129d213a1f1ba4c13b366a4d4ff0db030c6bfd0e1d7dd74bd7ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a44f4eca4fb129d213a1f1ba4c13b366a4d4ff0db030c6bfd0e1d7dd74bd7ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a44f4eca4fb129d213a1f1ba4c13b366a4d4ff0db030c6bfd0e1d7dd74bd7ebb", kill_on_drop: false }`
[INFO] [stdout] a44f4eca4fb129d213a1f1ba4c13b366a4d4ff0db030c6bfd0e1d7dd74bd7ebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c3f75b52eecf4d0495a8b3e174a83111d312ee8961a4b36dedb49871cd8d377
[INFO] running `Command { std: "docker" "start" "-a" "0c3f75b52eecf4d0495a8b3e174a83111d312ee8961a4b36dedb49871cd8d377", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking flagset v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "0c3f75b52eecf4d0495a8b3e174a83111d312ee8961a4b36dedb49871cd8d377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3f75b52eecf4d0495a8b3e174a83111d312ee8961a4b36dedb49871cd8d377", kill_on_drop: false }`
[INFO] [stdout] 0c3f75b52eecf4d0495a8b3e174a83111d312ee8961a4b36dedb49871cd8d377