[INFO] cloning repository https://github.com/JayrellGaming/sylphverifier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JayrellGaming/sylphverifier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJayrellGaming%2Fsylphverifier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJayrellGaming%2Fsylphverifier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0f717befce91863a6112999de4df2c7d0167edd
[INFO] checking JayrellGaming/sylphverifier against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJayrellGaming%2Fsylphverifier" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JayrellGaming/sylphverifier on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JayrellGaming/sylphverifier
[INFO] finished tweaking git repo https://github.com/JayrellGaming/sylphverifier
[INFO] tweaked toml for git repo https://github.com/JayrellGaming/sylphverifier written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/JayrellGaming/sylphverifier already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/withoutboats/failure.git`
[INFO] [stderr]     Updating git repository `https://github.com/withoutboats/display_derive`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mortal v0.1.2
[INFO] [stderr]   Downloaded terminfo v0.5.0
[INFO] [stderr]   Downloaded rusqlite v0.13.0
[INFO] [stderr]   Downloaded linefeed v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c757a3e2bb45c80d604c3ef04bc80b500a1c7a82f50ebf2e12d474ee1632701b
[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" "c757a3e2bb45c80d604c3ef04bc80b500a1c7a82f50ebf2e12d474ee1632701b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c757a3e2bb45c80d604c3ef04bc80b500a1c7a82f50ebf2e12d474ee1632701b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c757a3e2bb45c80d604c3ef04bc80b500a1c7a82f50ebf2e12d474ee1632701b", kill_on_drop: false }`
[INFO] [stdout] c757a3e2bb45c80d604c3ef04bc80b500a1c7a82f50ebf2e12d474ee1632701b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45b799f68962eb406505be5577e18d02d38199dcd4414e52d3f5cf3d6750d919
[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" "45b799f68962eb406505be5577e18d02d38199dcd4414e52d3f5cf3d6750d919", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling serde v1.0.61
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking enumset v0.3.10
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stdout] error: `allow_internal_unstable` expects a list of feature names
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/enumset-0.3.10/src/lib.rs:600:1
[INFO] [stdout]     |
[INFO] [stdout] 600 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling backtrace-sys v0.1.21
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enumset`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "45b799f68962eb406505be5577e18d02d38199dcd4414e52d3f5cf3d6750d919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45b799f68962eb406505be5577e18d02d38199dcd4414e52d3f5cf3d6750d919", kill_on_drop: false }`
[INFO] [stdout] 45b799f68962eb406505be5577e18d02d38199dcd4414e52d3f5cf3d6750d919