[INFO] cloning repository benbrandt/d20
[INFO] running `"git" "clone" "--bare" "git://github.com/benbrandt/d20.git" "work/cache/sources/gh/benbrandt/d20"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/benbrandt/d20'...
[INFO] running `"git" "clone" "work/cache/sources/gh/benbrandt/d20" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benbrandt/d20"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benbrandt/d20'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/benbrandt/d20" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/benbrandt/d20"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/benbrandt/d20'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fd6e4263c861c9cc87e0799dcf23ff8771fa3f78
[INFO] sha for GitHub repo benbrandt/d20: fd6e4263c861c9cc87e0799dcf23ff8771fa3f78
[INFO] validating manifest of benbrandt/d20 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of benbrandt/d20 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing benbrandt/d20
[INFO] finished frobbing benbrandt/d20
[INFO] frobbed toml for benbrandt/d20 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benbrandt/d20/Cargo.toml
[INFO] started frobbing benbrandt/d20
[INFO] finished frobbing benbrandt/d20
[INFO] frobbed toml for benbrandt/d20 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/benbrandt/d20/Cargo.toml
[INFO] crate benbrandt/d20 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-compression v0.1.0-alpha.1
[INFO] [stderr]   Downloaded pin-project v0.3.2
[INFO] [stderr]   Downloaded accept-encoding v0.2.0-alpha.2
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking benbrandt/d20 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benbrandt/d20:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 22c0f6aa5048828fad2eedce55f76de628f9581f014dd488180825886c07dae6
[INFO] running `"docker" "start" "-a" "22c0f6aa5048828fad2eedce55f76de628f9581f014dd488180825886c07dae6"`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking uname v0.1.1
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.1
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling sentry v0.15.5
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking http-service v0.2.0 (https://github.com/rustasync/http-service#be5d91f9)
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling zstd-sys v1.4.10+zstd.1.4.0
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.2
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling pin-project v0.3.2
[INFO] [stderr]    Compiling juniper_codegen v0.12.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking accept-encoding v0.2.0-alpha.2
[INFO] [stderr]     Checking zstd-safe v1.4.9+zstd.1.4.0
[INFO] [stderr]     Checking zstd v0.4.24+zstd.1.4.0
[INFO] [stderr]     Checking async-compression v0.1.0-alpha.1
[INFO] [stderr]     Checking serde v1.0.94
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking debugid v0.4.0
[INFO] [stderr]     Checking h2 v0.1.25
[INFO] [stderr]     Checking juniper v0.12.0
[INFO] [stderr]     Checking tide-core v0.2.0 (https://github.com/rustasync/tide#36c15fd4)
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking jsonwebtoken v6.0.1
[INFO] [stderr]     Checking sentry-types v0.11.0
[INFO] [stderr]     Checking tide-querystring v0.1.0 (https://github.com/rustasync/tide#36c15fd4)
[INFO] [stderr]     Checking tide-cors v0.2.0 (https://github.com/rustasync/tide#36c15fd4)
[INFO] [stderr]     Checking tide-log v0.1.0 (https://github.com/rustasync/tide#36c15fd4)
[INFO] [stderr]     Checking tide-forms v0.1.0 (https://github.com/rustasync/tide#36c15fd4)
[INFO] [stderr]     Checking tide-headers v0.1.0 (https://github.com/rustasync/tide#36c15fd4)
[INFO] [stderr] error[E0635]: unknown feature `async_closure`
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/tide-d8df193c9a60972c/36c15fd/tide-cors/src/lib.rs:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 | #![feature(async_await, async_closure)]
[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 E0635`.
[INFO] [stderr] error: Could not compile `tide-cors`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "22c0f6aa5048828fad2eedce55f76de628f9581f014dd488180825886c07dae6"`
[INFO] running `"docker" "rm" "-f" "22c0f6aa5048828fad2eedce55f76de628f9581f014dd488180825886c07dae6"`
[INFO] [stdout] 22c0f6aa5048828fad2eedce55f76de628f9581f014dd488180825886c07dae6