[INFO] cloning repository https://github.com/alanwilhelm/starling-genesis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alanwilhelm/starling-genesis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanwilhelm%2Fstarling-genesis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanwilhelm%2Fstarling-genesis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39c845b4b014123b1473ee6bc3c5188953ade27e
[INFO] checking alanwilhelm/starling-genesis against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanwilhelm%2Fstarling-genesis" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alanwilhelm/starling-genesis on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alanwilhelm/starling-genesis
[INFO] finished tweaking git repo https://github.com/alanwilhelm/starling-genesis
[INFO] tweaked toml for git repo https://github.com/alanwilhelm/starling-genesis written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/alanwilhelm/starling-genesis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/gyscos/Cursive`
[INFO] [stderr]     Updating git repository `https://github.com/alanwilhelm/murmur`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.55
[INFO] [stderr]   Downloaded digest-buffer v0.2.0
[INFO] [stderr]   Downloaded syn v0.13.10
[INFO] [stderr]   Downloaded digest v0.4.0
[INFO] [stderr]   Downloaded enumset v0.3.3
[INFO] [stderr]   Downloaded integer-encoding v1.0.5
[INFO] [stderr]   Downloaded reexport-proc-macro v1.0.2
[INFO] [stderr]   Downloaded multibase v0.6.0
[INFO] [stderr]   Downloaded crunchy v0.1.6
[INFO] [stderr]   Downloaded cid v0.2.3
[INFO] [stderr]   Downloaded num-traits v0.2.4
[INFO] [stderr]   Downloaded ncurses v5.91.0
[INFO] [stderr]   Downloaded base-x v0.2.2
[INFO] [stderr]   Downloaded enum-map-derive v0.2.5
[INFO] [stderr]   Downloaded num-integer v0.1.38
[INFO] [stderr]   Downloaded tiny-keccak v1.4.1
[INFO] [stderr]   Downloaded sha2 v0.4.2
[INFO] [stderr]   Downloaded byte-tools v0.1.3
[INFO] [stderr]   Downloaded enum-map v0.2.29
[INFO] [stderr]   Downloaded multihash v0.7.0
[INFO] [stderr]   Downloaded multiaddr v0.3.0
[INFO] [stderr]   Downloaded generic-array v0.6.0
[INFO] [stderr]   Downloaded easy-hash v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 388a785f447250062d33637289e0e9c2165f35fc15d09d0701099b26301f4c0a
[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" "388a785f447250062d33637289e0e9c2165f35fc15d09d0701099b26301f4c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "388a785f447250062d33637289e0e9c2165f35fc15d09d0701099b26301f4c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "388a785f447250062d33637289e0e9c2165f35fc15d09d0701099b26301f4c0a", kill_on_drop: false }`
[INFO] [stdout] 388a785f447250062d33637289e0e9c2165f35fc15d09d0701099b26301f4c0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] d0b99991423f36f825ed37b9fefa99f70147d941b3f2785e05d348db210f6660
[INFO] running `Command { std: "docker" "start" "-a" "d0b99991423f36f825ed37b9fefa99f70147d941b3f2785e05d348db210f6660", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking base-x v0.2.2
[INFO] [stderr]     Checking byte-tools v0.1.3
[INFO] [stderr]     Checking integer-encoding v1.0.5
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking array-macro v1.0.2
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking serde v1.0.55
[INFO] [stderr]     Checking reexport-proc-macro v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking enumset v0.3.3
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking multibase v0.6.0
[INFO] [stderr]     Checking generic-array v0.6.0
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]     Checking tiny-keccak v1.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking digest-buffer v0.2.0
[INFO] [stderr]     Checking digest v0.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]     Checking bytes v0.4.7
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking sha2 v0.4.2
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]    Compiling syn v0.13.10
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking tokio-timer v0.2.3
[INFO] [stderr]     Checking easy-hash v0.1.0
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.13.10/src/parsers.rs:68:48
[INFO] [stdout]      |
[INFO] [stdout] 68   |           fn $name(i: $crate::buffer::Cursor) -> $crate::synom::PResult<$o> {
[INFO] [stdout]      |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stdout] 69   |               $submac!(i, $($args)*)
[INFO] [stdout]      |                                    - help: consider removing this semicolon
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.13.10/src/expr.rs:1701:12
[INFO] [stdout]      |
[INFO] [stdout] 1701 |       named!(and_call -> (token::Paren, Punctuated<Expr, Token![,]>),
[INFO] [stdout]      |       -      -------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]      |  _____|
[INFO] [stdout]      | |
[INFO] [stdout] 1702 | |            parens!(Punctuated::parse_terminated));
[INFO] [stdout]      | |__________________________________________________- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note:   expected enum `std::result::Result<((Paren, punctuated::Punctuated<expr::Expr, Comma>), buffer::Cursor<'_>), error::ParseError>`
[INFO] [stdout]              found unit type `()`
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn`
[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" "d0b99991423f36f825ed37b9fefa99f70147d941b3f2785e05d348db210f6660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b99991423f36f825ed37b9fefa99f70147d941b3f2785e05d348db210f6660", kill_on_drop: false }`
[INFO] [stdout] d0b99991423f36f825ed37b9fefa99f70147d941b3f2785e05d348db210f6660