[INFO] fetching crate cargo-fuzzcheck 0.5.0...
[INFO] checking cargo-fuzzcheck-0.5.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate cargo-fuzzcheck 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate cargo-fuzzcheck 0.5.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-fuzzcheck 0.5.0
[INFO] finished tweaking crates.io crate cargo-fuzzcheck 0.5.0
[INFO] tweaked toml for crates.io crate cargo-fuzzcheck 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate cargo-fuzzcheck 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded decent-synquote-alternative v0.2.0
[INFO] [stderr]   Downloaded fuzzcheck_common v0.5.0
[INFO] [stderr]   Downloaded decent-serde-json-derive-alternative v0.3.0
[INFO] [stderr]   Downloaded decent-serde-json-alternative v0.3.0
[INFO] [stderr]   Downloaded decent-toml-rs-alternative v0.2.0
[INFO] [stderr]   Downloaded decent-serde-toml-derive-alternative v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7abdc56fd93fd1883d74e4c8f63f1bbeaed9404fe138ab4e54d1878ab0d9557
[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" "e7abdc56fd93fd1883d74e4c8f63f1bbeaed9404fe138ab4e54d1878ab0d9557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7abdc56fd93fd1883d74e4c8f63f1bbeaed9404fe138ab4e54d1878ab0d9557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7abdc56fd93fd1883d74e4c8f63f1bbeaed9404fe138ab4e54d1878ab0d9557", kill_on_drop: false }`
[INFO] [stdout] e7abdc56fd93fd1883d74e4c8f63f1bbeaed9404fe138ab4e54d1878ab0d9557
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07266b3104109c9d141f809cd6fe85ee4b4ee1c7305358bc93b613a33afc73d0
[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" "07266b3104109c9d141f809cd6fe85ee4b4ee1c7305358bc93b613a33afc73d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-fuzzcheck v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling decent-synquote-alternative v0.2.0
[INFO] [stderr]     Checking fuzzcheck_common v0.5.0
[INFO] [stderr]    Compiling decent-serde-toml-derive-alternative v0.2.0
[INFO] [stderr]     Checking decent-toml-rs-alternative v0.2.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "07266b3104109c9d141f809cd6fe85ee4b4ee1c7305358bc93b613a33afc73d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07266b3104109c9d141f809cd6fe85ee4b4ee1c7305358bc93b613a33afc73d0", kill_on_drop: false }`
[INFO] [stdout] 07266b3104109c9d141f809cd6fe85ee4b4ee1c7305358bc93b613a33afc73d0