[INFO] cloning repository https://github.com/ughitsaaron/toy-term
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ughitsaaron/toy-term" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fughitsaaron%2Ftoy-term", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fughitsaaron%2Ftoy-term'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44c77b04cb789b5ce7796989c7997a4410035f60
[INFO] checking ughitsaaron/toy-term against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fughitsaaron%2Ftoy-term" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ughitsaaron/toy-term 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/ughitsaaron/toy-term
[INFO] finished tweaking git repo https://github.com/ughitsaaron/toy-term
[INFO] tweaked toml for git repo https://github.com/ughitsaaron/toy-term written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ughitsaaron/toy-term 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]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-map-derive v0.4.1
[INFO] [stderr]   Downloaded array-macro v1.0.3
[INFO] [stderr]   Downloaded pkg-config v0.3.15
[INFO] [stderr]   Downloaded signal-hook-registry v1.1.1
[INFO] [stderr]   Downloaded num-iter v0.1.39
[INFO] [stderr]   Downloaded enum-map v0.5.0
[INFO] [stderr]   Downloaded cc v1.0.38
[INFO] [stderr]   Downloaded arc-swap v0.4.0
[INFO] [stderr]   Downloaded hashbrown v0.3.1
[INFO] [stderr]   Downloaded cursive v0.12.0
[INFO] [stderr]   Downloaded serde v1.0.98
[INFO] [stderr]   Downloaded toml v0.5.1
[INFO] [stderr]   Downloaded xi-unicode v0.1.0
[INFO] [stderr]   Downloaded num v0.2.0
[INFO] [stderr]   Downloaded ncurses v5.99.0
[INFO] [stderr]   Downloaded signal-hook v0.1.10
[INFO] [stderr]   Downloaded term_size v0.3.1
[INFO] [stderr]   Downloaded enum-map-internals v0.1.3
[INFO] [stderr]   Downloaded enumset v0.4.0
[INFO] [stderr]   Downloaded enumset_derive v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] da69312775532ff1fcb974a97e032c5d432cb86fa417638a584f0c4b00e07026
[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" "da69312775532ff1fcb974a97e032c5d432cb86fa417638a584f0c4b00e07026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da69312775532ff1fcb974a97e032c5d432cb86fa417638a584f0c4b00e07026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da69312775532ff1fcb974a97e032c5d432cb86fa417638a584f0c4b00e07026", kill_on_drop: false }`
[INFO] [stdout] da69312775532ff1fcb974a97e032c5d432cb86fa417638a584f0c4b00e07026
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 44b0bff73d1798cbb8c4ac5c36805215cb62803406e6fd9721ec7125c744a370
[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" "44b0bff73d1798cbb8c4ac5c36805215cb62803406e6fd9721ec7125c744a370", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]     Checking array-macro v1.0.3
[INFO] [stderr]     Checking arc-swap v0.4.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking enum-map-internals v0.1.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.14.9/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-0.14.9/src/expr.rs:1785:12
[INFO] [stdout]      |
[INFO] [stdout] 1785 |       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] 1786 | |         parens!(Punctuated::parse_terminated)
[INFO] [stdout] 1787 | |     );
[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] [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]    Compiling ncurses v5.99.0
[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" "44b0bff73d1798cbb8c4ac5c36805215cb62803406e6fd9721ec7125c744a370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b0bff73d1798cbb8c4ac5c36805215cb62803406e6fd9721ec7125c744a370", kill_on_drop: false }`
[INFO] [stdout] 44b0bff73d1798cbb8c4ac5c36805215cb62803406e6fd9721ec7125c744a370