[INFO] updating cached repository lnicola/rusty-share
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lnicola/rusty-share
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lnicola/rusty-share" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/lnicola/rusty-share"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/lnicola/rusty-share'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lnicola/rusty-share" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/lnicola/rusty-share"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/lnicola/rusty-share'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c8f99d64a6c0f8f20401bef7868b4d3b81fb6ad9
[INFO] sha for GitHub repo lnicola/rusty-share: c8f99d64a6c0f8f20401bef7868b4d3b81fb6ad9
[INFO] validating manifest of lnicola/rusty-share on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lnicola/rusty-share on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lnicola/rusty-share
[INFO] finished frobbing lnicola/rusty-share
[INFO] frobbed toml for lnicola/rusty-share written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/lnicola/rusty-share/Cargo.toml
[INFO] started frobbing lnicola/rusty-share
[INFO] finished frobbing lnicola/rusty-share
[INFO] frobbed toml for lnicola/rusty-share written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/lnicola/rusty-share/Cargo.toml
[INFO] crate lnicola/rusty-share already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lnicola/rusty-share against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-5/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/lnicola/rusty-share:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 56d6ff4569888665bdf9cf364857842a605b75d297b8b53ac1c4c1f0ee96894c
[INFO] running `"docker" "start" "-a" "56d6ff4569888665bdf9cf364857842a605b75d297b8b53ac1c4c1f0ee96894c"`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.1
[INFO] [stderr]     Checking horrorshow v0.6.5
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking serde_plain v0.3.0
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking tar v0.4.20
[INFO] [stderr]     Checking flate2 v1.0.6
[INFO] [stderr]    Compiling headers-derive v0.1.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling diesel_derives v1.4.0
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking chrono-humanize v0.0.11
[INFO] [stderr]     Checking headers-core v0.1.0
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]     Checking pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling proc-macro-hack v0.4.1
[INFO] [stderr]     Checking scrypt v0.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking hyper v0.12.25
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]     Checking headers v0.2.1
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking http-serve v0.1.2
[INFO] [stderr]     Checking diesel v1.4.1
[INFO] [stderr]    Compiling tower-web-macros v0.3.4
[INFO] [stderr]     Checking tower-web v0.3.5
[INFO] [stderr] error[E0670]: `async fn` is not permitted in the 2015 edition
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tower-web-0.3.5/src/codegen/mod.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     async fn map_ok<T, E>(future: T) -> Result<T::Output, E>
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0670`.
[INFO] [stderr] error: Could not compile `tower-web`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "56d6ff4569888665bdf9cf364857842a605b75d297b8b53ac1c4c1f0ee96894c"`
[INFO] running `"docker" "rm" "-f" "56d6ff4569888665bdf9cf364857842a605b75d297b8b53ac1c4c1f0ee96894c"`
[INFO] [stdout] 56d6ff4569888665bdf9cf364857842a605b75d297b8b53ac1c4c1f0ee96894c