[INFO] crate generator 0.6.21 is already in cache
[INFO] checking generator-0.6.21 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate generator 0.6.21 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate generator 0.6.21 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate generator 0.6.21
[INFO] finished tweaking crates.io crate generator 0.6.21
[INFO] tweaked toml for crates.io crate generator 0.6.21 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate generator 0.6.21 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca8368494d027e95aef80b7bf89434f26909016914e074f2d99ba7af88546e26
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca8368494d027e95aef80b7bf89434f26909016914e074f2d99ba7af88546e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca8368494d027e95aef80b7bf89434f26909016914e074f2d99ba7af88546e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca8368494d027e95aef80b7bf89434f26909016914e074f2d99ba7af88546e26", kill_on_drop: false }`
[INFO] [stdout] ca8368494d027e95aef80b7bf89434f26909016914e074f2d99ba7af88546e26
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29753f6db4a2c8183b6a7d22b4a32c7bf87f6af91496384a41ad8ac2073522d4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "29753f6db4a2c8183b6a7d22b4a32c7bf87f6af91496384a41ad8ac2073522d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling generator v0.6.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "29753f6db4a2c8183b6a7d22b4a32c7bf87f6af91496384a41ad8ac2073522d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29753f6db4a2c8183b6a7d22b4a32c7bf87f6af91496384a41ad8ac2073522d4", kill_on_drop: false }`
[INFO] [stdout] 29753f6db4a2c8183b6a7d22b4a32c7bf87f6af91496384a41ad8ac2073522d4