[INFO] updating cached repository rongfengliang/myvigil-multiemail
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rongfengliang/myvigil-multiemail
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rongfengliang/myvigil-multiemail" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/rongfengliang/myvigil-multiemail"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/rongfengliang/myvigil-multiemail'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rongfengliang/myvigil-multiemail" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/rongfengliang/myvigil-multiemail"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/rongfengliang/myvigil-multiemail'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 27e4a0452af5df2e75065ca6b91573428aa5713c
[INFO] sha for GitHub repo rongfengliang/myvigil-multiemail: 27e4a0452af5df2e75065ca6b91573428aa5713c
[INFO] validating manifest of rongfengliang/myvigil-multiemail on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rongfengliang/myvigil-multiemail on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rongfengliang/myvigil-multiemail
[INFO] finished frobbing rongfengliang/myvigil-multiemail
[INFO] frobbed toml for rongfengliang/myvigil-multiemail written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/rongfengliang/myvigil-multiemail/Cargo.toml
[INFO] started frobbing rongfengliang/myvigil-multiemail
[INFO] finished frobbing rongfengliang/myvigil-multiemail
[INFO] frobbed toml for rongfengliang/myvigil-multiemail written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/rongfengliang/myvigil-multiemail/Cargo.toml
[INFO] crate rongfengliang/myvigil-multiemail already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rongfengliang/myvigil-multiemail against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/rongfengliang/myvigil-multiemail:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a9a4a626368ff15d73fadc86a4b994c0cc24b1befe5853261b1c89cdeeba3c3d
[INFO] running `"docker" "start" "-a" "a9a4a626368ff15d73fadc86a4b994c0cc24b1befe5853261b1c89cdeeba3c3d"`
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking libflate v0.1.20
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking email v0.0.20
[INFO] [stderr]     Checking h2 v0.1.16
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking hyper v0.12.24
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking reqwest v0.9.10
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]    Compiling devise_codegen v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]    Compiling devise v0.2.0
[INFO] [stderr]    Compiling pear v0.1.2
[INFO] [stderr]     Checking rocket_http v0.4.0
[INFO] [stderr]    Compiling rocket_codegen v0.4.0
[INFO] [stderr]     Checking lettre v0.8.3
[INFO] [stderr]     Checking lettre_email v0.8.3
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lettre_email-0.8.3/src/lib.rs:387:70
[INFO] [stderr]     |
[INFO] [stderr] 387 |         self.add_header(("Content-Type", format!("{}", content_type).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 `lettre_email`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a9a4a626368ff15d73fadc86a4b994c0cc24b1befe5853261b1c89cdeeba3c3d"`
[INFO] running `"docker" "rm" "-f" "a9a4a626368ff15d73fadc86a4b994c0cc24b1befe5853261b1c89cdeeba3c3d"`
[INFO] [stdout] a9a4a626368ff15d73fadc86a4b994c0cc24b1befe5853261b1c89cdeeba3c3d