[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 master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[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 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c32971b9de0bcfd799faf5e81a10821bf5e759460975be1dae031e1271b6d43
[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" "0c32971b9de0bcfd799faf5e81a10821bf5e759460975be1dae031e1271b6d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c32971b9de0bcfd799faf5e81a10821bf5e759460975be1dae031e1271b6d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c32971b9de0bcfd799faf5e81a10821bf5e759460975be1dae031e1271b6d43", kill_on_drop: false }`
[INFO] [stdout] 0c32971b9de0bcfd799faf5e81a10821bf5e759460975be1dae031e1271b6d43
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14e1ebde00418d1f54fe2b6d5e5dd472d93213e5ac3338a0600312bb2ac2373f
[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" "14e1ebde00418d1f54fe2b6d5e5dd472d93213e5ac3338a0600312bb2ac2373f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling serde v1.0.61
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking smallvec v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking try-lock v0.1.0
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking rand_core v0.2.0
[INFO] [stderr]     Checking enumset v0.3.10
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[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]     Checking encoding_rs v0.7.2
[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" "14e1ebde00418d1f54fe2b6d5e5dd472d93213e5ac3338a0600312bb2ac2373f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e1ebde00418d1f54fe2b6d5e5dd472d93213e5ac3338a0600312bb2ac2373f", kill_on_drop: false }`
[INFO] [stdout] 14e1ebde00418d1f54fe2b6d5e5dd472d93213e5ac3338a0600312bb2ac2373f