[INFO] fetching crate num_enum 0.5.0...
[INFO] checking num_enum-0.5.0 against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] extracting crate num_enum 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate num_enum 0.5.0 on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate num_enum 0.5.0
[INFO] finished tweaking crates.io crate num_enum 0.5.0
[INFO] tweaked toml for crates.io crate num_enum 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_enum_derive v0.5.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "/opt/rustwide/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e11fc71b679f67f929cee99edb3be57c13f7913ae406167283e0d1a1b6d6302e
[INFO] running `"docker" "start" "-a" "e11fc71b679f67f929cee99edb3be57c13f7913ae406167283e0d1a1b6d6302e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.5.0
[INFO] [stderr]     Checking num_enum v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr] Warning: Could not find `num_enum` in `dependencies` or `dev-dependencies` in `/opt/rustwide/workdir/Cargo.toml`!
[INFO] [stderr]     => defaulting to `num_enum`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.51s
[INFO] running `"docker" "inspect" "e11fc71b679f67f929cee99edb3be57c13f7913ae406167283e0d1a1b6d6302e"`
[INFO] running `"docker" "rm" "-f" "e11fc71b679f67f929cee99edb3be57c13f7913ae406167283e0d1a1b6d6302e"`
[INFO] [stdout] e11fc71b679f67f929cee99edb3be57c13f7913ae406167283e0d1a1b6d6302e