[INFO] fetching crate cargo-fuzzcheck 0.6.0...
[INFO] checking cargo-fuzzcheck-0.6.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate cargo-fuzzcheck 0.6.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate cargo-fuzzcheck 0.6.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-fuzzcheck 0.6.0
[INFO] finished tweaking crates.io crate cargo-fuzzcheck 0.6.0
[INFO] tweaked toml for crates.io crate cargo-fuzzcheck 0.6.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate cargo-fuzzcheck 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0b7c20226652350ecb30be6eace094e3521c0d917aefcf3593143116118cc427
[INFO] running `Command { std: "docker" "start" "-a" "0b7c20226652350ecb30be6eace094e3521c0d917aefcf3593143116118cc427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b7c20226652350ecb30be6eace094e3521c0d917aefcf3593143116118cc427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7c20226652350ecb30be6eace094e3521c0d917aefcf3593143116118cc427", kill_on_drop: false }`
[INFO] [stdout] 0b7c20226652350ecb30be6eace094e3521c0d917aefcf3593143116118cc427
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "RUSTUP_TOOLCHAIN=4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/tmp/crater-runner-fifo/jobserver-crater-fwd" "/opt/rustwide/cargo-home/bin/cargo" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4be1810dccd4a55f10419ef26d78d059e362b2d531df06574f89a66f3e146349
[INFO] running `Command { std: "docker" "start" "-a" "4be1810dccd4a55f10419ef26d78d059e362b2d531df06574f89a66f3e146349", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-fuzzcheck v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fuzzcheck_common v0.6.0
[INFO] [stderr]    Compiling decent-synquote-alternative v0.3.0
[INFO] [stderr]    Compiling decent-serde-toml-derive-alternative v0.3.0
[INFO] [stderr]     Checking decent-toml-rs-alternative v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.85s
[INFO] running `Command { std: "docker" "inspect" "4be1810dccd4a55f10419ef26d78d059e362b2d531df06574f89a66f3e146349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4be1810dccd4a55f10419ef26d78d059e362b2d531df06574f89a66f3e146349", kill_on_drop: false }`
[INFO] [stdout] 4be1810dccd4a55f10419ef26d78d059e362b2d531df06574f89a66f3e146349