[INFO] fetching crate cargo-fuzzcheck 0.6.0...
[INFO] checking cargo-fuzzcheck-0.6.0 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate cargo-fuzzcheck 0.6.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cargo-fuzzcheck 0.6.0 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "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-11/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" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded decent-synquote-alternative v0.3.0
[INFO] [stderr]   Downloaded decent-serde-toml-derive-alternative v0.3.0
[INFO] [stderr]   Downloaded decent-serde-json-alternative v0.4.0
[INFO] [stderr]   Downloaded decent-toml-rs-alternative v0.3.0
[INFO] [stderr]   Downloaded decent-serde-json-derive-alternative v0.4.0
[INFO] [stderr]   Downloaded fuzzcheck_common v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64f3fb336f377e0d86a9883e8c2cb04245b810101cd96072c86826abc75a308e
[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" "64f3fb336f377e0d86a9883e8c2cb04245b810101cd96072c86826abc75a308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64f3fb336f377e0d86a9883e8c2cb04245b810101cd96072c86826abc75a308e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f3fb336f377e0d86a9883e8c2cb04245b810101cd96072c86826abc75a308e", kill_on_drop: false }`
[INFO] [stdout] 64f3fb336f377e0d86a9883e8c2cb04245b810101cd96072c86826abc75a308e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d8d009cd24bb670420424a6dc540618651505382933847abe40c1a34e4ec10c
[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" "8d8d009cd24bb670420424a6dc540618651505382933847abe40c1a34e4ec10c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-fuzzcheck v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling decent-synquote-alternative v0.3.0
[INFO] [stderr]     Checking fuzzcheck_common v0.6.0
[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 6.22s
[INFO] running `Command { std: "docker" "inspect" "8d8d009cd24bb670420424a6dc540618651505382933847abe40c1a34e4ec10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d8d009cd24bb670420424a6dc540618651505382933847abe40c1a34e4ec10c", kill_on_drop: false }`
[INFO] [stdout] 8d8d009cd24bb670420424a6dc540618651505382933847abe40c1a34e4ec10c