[INFO] updating cached repository Dooskington/Mail-Journal
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dooskington/Mail-Journal
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dooskington/Mail-Journal" "work/ex/beta-1.38-1/sources/1.37.0/gh/Dooskington/Mail-Journal"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Dooskington/Mail-Journal'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dooskington/Mail-Journal" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dooskington/Mail-Journal"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dooskington/Mail-Journal'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a33afd1b64103f8d201075e40d942d44a803bcf9
[INFO] sha for GitHub repo Dooskington/Mail-Journal: a33afd1b64103f8d201075e40d942d44a803bcf9
[INFO] validating manifest of Dooskington/Mail-Journal 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 Dooskington/Mail-Journal 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 Dooskington/Mail-Journal
[INFO] finished frobbing Dooskington/Mail-Journal
[INFO] frobbed toml for Dooskington/Mail-Journal written to work/ex/beta-1.38-1/sources/1.37.0/gh/Dooskington/Mail-Journal/Cargo.toml
[INFO] started frobbing Dooskington/Mail-Journal
[INFO] finished frobbing Dooskington/Mail-Journal
[INFO] frobbed toml for Dooskington/Mail-Journal written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dooskington/Mail-Journal/Cargo.toml
[INFO] crate Dooskington/Mail-Journal 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Dooskington/Mail-Journal against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Dooskington/Mail-Journal:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e4a03939afcc8e00b43e71ab753d3e9a72b1974f14a1d2e0643000e76c90cd2b
[INFO] running `"docker" "start" "-a" "e4a03939afcc8e00b43e71ab753d3e9a72b1974f14a1d2e0643000e76c90cd2b"`
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]    Compiling libsqlite3-sys v0.10.0
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling mailparse v0.6.4
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]    Compiling hmac v0.6.3
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling imap-proto v0.7.0
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling imap v0.10.0
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling ron v0.4.0
[INFO] [stderr]    Compiling lettre v0.8.3
[INFO] [stderr]    Compiling rusqlite v0.15.0
[INFO] [stderr]    Compiling 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" "e4a03939afcc8e00b43e71ab753d3e9a72b1974f14a1d2e0643000e76c90cd2b"`
[INFO] running `"docker" "rm" "-f" "e4a03939afcc8e00b43e71ab753d3e9a72b1974f14a1d2e0643000e76c90cd2b"`
[INFO] [stdout] e4a03939afcc8e00b43e71ab753d3e9a72b1974f14a1d2e0643000e76c90cd2b