[INFO] fetching crate neat-rs 0.1.82...
[INFO] checking neat-rs-0.1.82 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate neat-rs 0.1.82 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate neat-rs 0.1.82 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate neat-rs 0.1.82
[INFO] finished tweaking crates.io crate neat-rs 0.1.82
[INFO] tweaked toml for crates.io crate neat-rs 0.1.82 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gym v2.2.1
[INFO] [stderr]   Downloaded ndarray v0.13.1
[INFO] [stderr]   Downloaded cpython v0.4.1
[INFO] [stderr]   Downloaded slow_nn v0.1.22
[INFO] [stderr]   Downloaded python3-sys v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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] b3c4663789b269ef8b85f67781c80dde11b10f2bc844c81565abe85fbcfa9c06
[INFO] running `Command { std: "docker" "start" "-a" "b3c4663789b269ef8b85f67781c80dde11b10f2bc844c81565abe85fbcfa9c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3c4663789b269ef8b85f67781c80dde11b10f2bc844c81565abe85fbcfa9c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c4663789b269ef8b85f67781c80dde11b10f2bc844c81565abe85fbcfa9c06", kill_on_drop: false }`
[INFO] [stdout] b3c4663789b269ef8b85f67781c80dde11b10f2bc844c81565abe85fbcfa9c06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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] f01446669459e4e2893051c524fca748a2cee543ae423c6aff5a4472708f61bf
[INFO] running `Command { std: "docker" "start" "-a" "f01446669459e4e2893051c524fca748a2cee543ae423c6aff5a4472708f61bf", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling cpython v0.4.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]     Checking num-traits v0.2.12
[INFO] [stderr]    Compiling python3-sys v0.4.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking gym v2.2.1
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking slow_nn v0.1.22
[INFO] [stderr]     Checking neat-rs v0.1.82 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.55s
[INFO] running `Command { std: "docker" "inspect" "f01446669459e4e2893051c524fca748a2cee543ae423c6aff5a4472708f61bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f01446669459e4e2893051c524fca748a2cee543ae423c6aff5a4472708f61bf", kill_on_drop: false }`
[INFO] [stdout] f01446669459e4e2893051c524fca748a2cee543ae423c6aff5a4472708f61bf