[INFO] cloning repository https://github.com/JayrellGaming/sylphie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JayrellGaming/sylphie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJayrellGaming%2Fsylphie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJayrellGaming%2Fsylphie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fdf4035c870b22fcd15bfcba6c065910f429cb34
[INFO] checking JayrellGaming/sylphie against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJayrellGaming%2Fsylphie" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JayrellGaming/sylphie on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JayrellGaming/sylphie
[INFO] finished tweaking git repo https://github.com/JayrellGaming/sylphie
[INFO] tweaked toml for git repo https://github.com/JayrellGaming/sylphie written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/JayrellGaming/sylphie already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d16f0900628bc713b50ca1709d235d55cee60db84ef321bab41c4e2d15eb4607
[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" "d16f0900628bc713b50ca1709d235d55cee60db84ef321bab41c4e2d15eb4607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d16f0900628bc713b50ca1709d235d55cee60db84ef321bab41c4e2d15eb4607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d16f0900628bc713b50ca1709d235d55cee60db84ef321bab41c4e2d15eb4607", kill_on_drop: false }`
[INFO] [stdout] d16f0900628bc713b50ca1709d235d55cee60db84ef321bab41c4e2d15eb4607
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] f4daa84bb80a48295a0bc417883a29430ea1fc3c4baf588ce64958897bd4d885
[INFO] running `Command { std: "docker" "start" "-a" "f4daa84bb80a48295a0bc417883a29430ea1fc3c4baf588ce64958897bd4d885", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling openssl v0.9.23
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.1.8
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking smallvec v0.6.0
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking enumset v0.3.3
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking thread-id v3.2.0
[INFO] [stderr]     Checking base64 v0.9.0
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stdout] error: `allow_internal_unstable` expects a list of feature names
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/enumset-0.3.3/src/lib.rs:399:1
[INFO] [stdout]     |
[INFO] [stdout] 399 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `allow_internal_unstable` expects a list of feature names
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/enumset-0.3.3/src/lib.rs:530:1
[INFO] [stdout]     |
[INFO] [stdout] 530 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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" "f4daa84bb80a48295a0bc417883a29430ea1fc3c4baf588ce64958897bd4d885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4daa84bb80a48295a0bc417883a29430ea1fc3c4baf588ce64958897bd4d885", kill_on_drop: false }`
[INFO] [stdout] f4daa84bb80a48295a0bc417883a29430ea1fc3c4baf588ce64958897bd4d885