[INFO] updating cached repository vulkano-rs/vulkano-www
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vulkano-rs/vulkano-www
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vulkano-rs/vulkano-www" "work/ex/beta-1.38-1/sources/1.37.0/gh/vulkano-rs/vulkano-www"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vulkano-rs/vulkano-www'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vulkano-rs/vulkano-www" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vulkano-rs/vulkano-www"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vulkano-rs/vulkano-www'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ce784ff12d0ba22fa21b8aada1e725fbd05678f
[INFO] sha for GitHub repo vulkano-rs/vulkano-www: 3ce784ff12d0ba22fa21b8aada1e725fbd05678f
[INFO] validating manifest of vulkano-rs/vulkano-www on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vulkano-rs/vulkano-www on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vulkano-rs/vulkano-www
[INFO] finished frobbing vulkano-rs/vulkano-www
[INFO] frobbed toml for vulkano-rs/vulkano-www written to work/ex/beta-1.38-1/sources/1.37.0/gh/vulkano-rs/vulkano-www/Cargo.toml
[INFO] started frobbing vulkano-rs/vulkano-www
[INFO] finished frobbing vulkano-rs/vulkano-www
[INFO] frobbed toml for vulkano-rs/vulkano-www written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vulkano-rs/vulkano-www/Cargo.toml
[INFO] crate vulkano-rs/vulkano-www already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vulkano-rs/vulkano-www against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vulkano-rs/vulkano-www:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1f53f01eb56fdee769982655d1101527f9458746bb9866d32923d1d902bfdefd
[INFO] running `"docker" "start" "-a" "1f53f01eb56fdee769982655d1101527f9458746bb9866d32923d1d902bfdefd"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.25
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling ascii v0.8.7
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling rand_os v0.1.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling rand v0.4.5
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling gzip-header v0.2.0
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling buf_redux v0.6.3
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]    Compiling tiny_http v0.6.2
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling multipart v0.13.6
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]    Compiling rouille v2.2.0
[INFO] [stderr]    Compiling vulkano-www v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> src/lib.rs:153:45
[INFO] [stderr]     |
[INFO] [stderr] 153 |                 .insert_str("body", e.key().as_ref())
[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 E0283`.
[INFO] [stderr] error: Could not compile `vulkano-www`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1f53f01eb56fdee769982655d1101527f9458746bb9866d32923d1d902bfdefd"`
[INFO] running `"docker" "rm" "-f" "1f53f01eb56fdee769982655d1101527f9458746bb9866d32923d1d902bfdefd"`
[INFO] [stdout] 1f53f01eb56fdee769982655d1101527f9458746bb9866d32923d1d902bfdefd