[INFO] updating cached repository arjsin/tower-web-fileserving [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/arjsin/tower-web-fileserving [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/arjsin/tower-web-fileserving" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/arjsin/tower-web-fileserving"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/arjsin/tower-web-fileserving'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/arjsin/tower-web-fileserving" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/arjsin/tower-web-fileserving"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/arjsin/tower-web-fileserving'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cdcfbb6fe15cdcc96f3e48eee85ea6e8a972e8b8 [INFO] sha for GitHub repo arjsin/tower-web-fileserving: cdcfbb6fe15cdcc96f3e48eee85ea6e8a972e8b8 [INFO] validating manifest of arjsin/tower-web-fileserving on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of arjsin/tower-web-fileserving on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing arjsin/tower-web-fileserving [INFO] finished frobbing arjsin/tower-web-fileserving [INFO] frobbed toml for arjsin/tower-web-fileserving written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/arjsin/tower-web-fileserving/Cargo.toml [INFO] started frobbing arjsin/tower-web-fileserving [INFO] finished frobbing arjsin/tower-web-fileserving [INFO] frobbed toml for arjsin/tower-web-fileserving written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/arjsin/tower-web-fileserving/Cargo.toml [INFO] crate arjsin/tower-web-fileserving already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking arjsin/tower-web-fileserving against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/arjsin/tower-web-fileserving:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c436fb7bfbe2aae34f9e6995d04d4e99b1c0352cd7e1a287aef2c05b7d1051e2 [INFO] running `"docker" "start" "-a" "c436fb7bfbe2aae34f9e6995d04d4e99b1c0352cd7e1a287aef2c05b7d1051e2"` [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Checking ring v0.13.5 [INFO] [stderr] Checking serde_plain v0.3.0 [INFO] [stderr] Checking block-buffer v0.7.2 [INFO] [stderr] Checking flate2 v1.0.6 [INFO] [stderr] Compiling headers-derive v0.1.0 [INFO] [stderr] Compiling serde_derive v1.0.86 [INFO] [stderr] Checking headers-core v0.1.0 [INFO] [stderr] Checking handlebars v1.0.5 [INFO] [stderr] Compiling bytes v0.4.11 [INFO] [stderr] Checking sha-1 v0.8.1 [INFO] [stderr] Checking tokio-threadpool v0.1.11 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Compiling http v0.1.15 [INFO] [stderr] Checking webpki v0.18.1 [INFO] [stderr] Checking sct v0.4.0 [INFO] [stderr] Checking tokio-fs v0.1.5 [INFO] [stderr] Checking headers v0.2.1 [INFO] [stderr] Checking rustls v0.14.0 [INFO] [stderr] Checking tokio v0.1.15 [INFO] [stderr] Checking hyper v0.12.23 [INFO] [stderr] Checking tokio-rustls v0.8.1 [INFO] [stderr] Compiling tower-web-macros v0.3.3 [INFO] [stderr] Checking tower-web v0.3.4 [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-0.3.4/src/codegen/mod.rs:53:5 [INFO] [stderr] | [INFO] [stderr] 53 | async fn map_ok(future: T) -> Result [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error: proc-macro derive panicked [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tower-web-0.3.4/src/lib.rs:537:1 [INFO] [stderr] | [INFO] [stderr] 537 | / proc_macro_item_decl! { [INFO] [stderr] 538 | | #[doc(hidden)] [INFO] [stderr] 539 | | derive_resource! => derive_resource_impl [INFO] [stderr] 540 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = help: message: assertion failed: `(left == right)` [INFO] [stderr] left: `Some("#[allow(unused,")`, [INFO] [stderr] right: `Some("#[allow(unused")` [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [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" "c436fb7bfbe2aae34f9e6995d04d4e99b1c0352cd7e1a287aef2c05b7d1051e2"` [INFO] running `"docker" "rm" "-f" "c436fb7bfbe2aae34f9e6995d04d4e99b1c0352cd7e1a287aef2c05b7d1051e2"` [INFO] [stdout] c436fb7bfbe2aae34f9e6995d04d4e99b1c0352cd7e1a287aef2c05b7d1051e2