[INFO] updating cached repository mmai/activue
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mmai/activue
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mmai/activue" "work/ex/beta-1.38-1/sources/1.37.0/gh/mmai/activue"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mmai/activue'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mmai/activue" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmai/activue"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmai/activue'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 670d8d3eab277196efcc7a9d862bf6592363e67a
[INFO] sha for GitHub repo mmai/activue: 670d8d3eab277196efcc7a9d862bf6592363e67a
[INFO] validating manifest of mmai/activue 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 mmai/activue 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 mmai/activue
[INFO] finished frobbing mmai/activue
[INFO] frobbed toml for mmai/activue written to work/ex/beta-1.38-1/sources/1.37.0/gh/mmai/activue/Cargo.toml
[INFO] started frobbing mmai/activue
[INFO] finished frobbing mmai/activue
[INFO] frobbed toml for mmai/activue written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmai/activue/Cargo.toml
[INFO] crate mmai/activue 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mmai/activue 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mmai/activue:/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] 082c7b4ea556393b7e70b602eb1c7b1902261d9b9325ad1e362c9f9677e128c1
[INFO] running `"docker" "start" "-a" "082c7b4ea556393b7e70b602eb1c7b1902261d9b9325ad1e362c9f9677e128c1"`
[INFO] [stderr]    Compiling libsqlite3-sys v0.12.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling block-cipher-trait v0.6.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling v_escape_derive v0.5.3
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling diesel_derives v1.4.0
[INFO] [stderr]    Compiling actix-web-codegen v0.1.2
[INFO] [stderr]    Compiling actix_derive v0.4.0
[INFO] [stderr]    Compiling blowfish v0.4.0
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling string v0.2.0
[INFO] [stderr]    Compiling http v0.1.17
[INFO] [stderr]    Compiling v_escape v0.7.2
[INFO] [stderr]    Compiling r2d2 v0.8.4
[INFO] [stderr]    Compiling bcrypt v0.2.2
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling v_htmlescape v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling actix-codec v0.1.2
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-signal v0.2.7
[INFO] [stderr]    Compiling actix-threadpool v0.1.1
[INFO] [stderr]    Compiling actix-utils v0.4.1
[INFO] [stderr]    Compiling actix-server-config v0.1.1
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling actix-rt v0.2.2
[INFO] [stderr]    Compiling h2 v0.1.23
[INFO] [stderr]    Compiling trust-dns-proto v0.7.4
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling dotenv v0.13.0
[INFO] [stderr]    Compiling actix-server v0.5.1
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling trust-dns-resolver v0.11.1
[INFO] [stderr]    Compiling actix-connect v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling actix-router v0.1.5
[INFO] [stderr]    Compiling diesel v1.4.2
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]    Compiling actix-http v0.2.3
[INFO] [stderr]    Compiling lettre v0.9.1
[INFO] [stderr]    Compiling jsonwebtoken v6.0.1
[INFO] [stderr]    Compiling lettre_email v0.9.1
[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-0.9.1/src/lib.rs:139:66
[INFO] [stderr]     |
[INFO] [stderr] 139 |         self.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" "082c7b4ea556393b7e70b602eb1c7b1902261d9b9325ad1e362c9f9677e128c1"`
[INFO] running `"docker" "rm" "-f" "082c7b4ea556393b7e70b602eb1c7b1902261d9b9325ad1e362c9f9677e128c1"`
[INFO] [stdout] 082c7b4ea556393b7e70b602eb1c7b1902261d9b9325ad1e362c9f9677e128c1