[INFO] updating cached repository ffimnsr/simple-webservice-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ffimnsr/simple-webservice-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ffimnsr/simple-webservice-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/ffimnsr/simple-webservice-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ffimnsr/simple-webservice-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ffimnsr/simple-webservice-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ffimnsr/simple-webservice-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ffimnsr/simple-webservice-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fa784d2adfca24055555f407c52dee2a9eedb293
[INFO] sha for GitHub repo ffimnsr/simple-webservice-rust: fa784d2adfca24055555f407c52dee2a9eedb293
[INFO] validating manifest of ffimnsr/simple-webservice-rust 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 ffimnsr/simple-webservice-rust 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 ffimnsr/simple-webservice-rust
[INFO] finished frobbing ffimnsr/simple-webservice-rust
[INFO] frobbed toml for ffimnsr/simple-webservice-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/ffimnsr/simple-webservice-rust/Cargo.toml
[INFO] started frobbing ffimnsr/simple-webservice-rust
[INFO] finished frobbing ffimnsr/simple-webservice-rust
[INFO] frobbed toml for ffimnsr/simple-webservice-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ffimnsr/simple-webservice-rust/Cargo.toml
[INFO] crate ffimnsr/simple-webservice-rust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing ffimnsr/simple-webservice-rust 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-6/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/ffimnsr/simple-webservice-rust:/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] c5502103d5d544ad0997cc24fc6e3c637fa5f10f12460ca44b9fcf203bfce4e4
[INFO] running `"docker" "start" "-a" "c5502103d5d544ad0997cc24fc6e3c637fa5f10f12460ca44b9fcf203bfce4e4"`
[INFO] [stderr]    Compiling email v0.0.19
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling r2d2 v0.8.2
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling gotham_derive v0.2.1
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling hmac v0.6.2
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling diesel v1.3.2
[INFO] [stderr]    Compiling cargo_metadata v0.5.8
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.2
[INFO] [stderr]    Compiling dotenv v0.13.0
[INFO] [stderr]    Compiling lettre v0.8.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.1
[INFO] [stderr]    Compiling skeptic v0.13.3
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling borrow-bag v1.0.0
[INFO] [stderr]    Compiling lettre_email v0.8.2
[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-0.8.2/src/lib.rs:361:70
[INFO] [stderr]     |
[INFO] [stderr] 361 |         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" "c5502103d5d544ad0997cc24fc6e3c637fa5f10f12460ca44b9fcf203bfce4e4"`
[INFO] running `"docker" "rm" "-f" "c5502103d5d544ad0997cc24fc6e3c637fa5f10f12460ca44b9fcf203bfce4e4"`
[INFO] [stdout] c5502103d5d544ad0997cc24fc6e3c637fa5f10f12460ca44b9fcf203bfce4e4