[INFO] updating cached repository KonishchevDmitry/transmission-controller [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/KonishchevDmitry/transmission-controller [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/KonishchevDmitry/transmission-controller" "work/ex/beta-1.38-1/sources/1.37.0/gh/KonishchevDmitry/transmission-controller"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KonishchevDmitry/transmission-controller'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/KonishchevDmitry/transmission-controller" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KonishchevDmitry/transmission-controller"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KonishchevDmitry/transmission-controller'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 26a74d6b42faae93d4e0da69125074491fbbbde5 [INFO] sha for GitHub repo KonishchevDmitry/transmission-controller: 26a74d6b42faae93d4e0da69125074491fbbbde5 [INFO] validating manifest of KonishchevDmitry/transmission-controller 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 KonishchevDmitry/transmission-controller 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 KonishchevDmitry/transmission-controller [INFO] finished frobbing KonishchevDmitry/transmission-controller [INFO] frobbed toml for KonishchevDmitry/transmission-controller written to work/ex/beta-1.38-1/sources/1.37.0/gh/KonishchevDmitry/transmission-controller/Cargo.toml [INFO] started frobbing KonishchevDmitry/transmission-controller [INFO] finished frobbing KonishchevDmitry/transmission-controller [INFO] frobbed toml for KonishchevDmitry/transmission-controller written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KonishchevDmitry/transmission-controller/Cargo.toml [INFO] crate KonishchevDmitry/transmission-controller 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 KonishchevDmitry/transmission-controller 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KonishchevDmitry/transmission-controller:/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] 888a31b8ad52f16f9c7d910b47f938a9985979b7ead7158752e61a0da1302ad1 [INFO] running `"docker" "start" "-a" "888a31b8ad52f16f9c7d910b47f938a9985979b7ead7158752e61a0da1302ad1"` [INFO] [stderr] Compiling num-bigint v0.2.1 [INFO] [stderr] Compiling ascii_utils v0.9.3 [INFO] [stderr] Compiling email v0.0.20 [INFO] [stderr] Compiling encoding_rs v0.8.12 [INFO] [stderr] Compiling rand v0.4.3 [INFO] [stderr] Compiling hostname v0.1.5 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling nom v4.1.1 [INFO] [stderr] Compiling chrono v0.4.6 [INFO] [stderr] Compiling tokio-io v0.1.10 [INFO] [stderr] Compiling rand v0.6.1 [INFO] [stderr] Compiling fast_chemail v0.9.5 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling h2 v0.1.13 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Compiling lettre v0.9.1 [INFO] [stderr] Compiling chan v0.1.23 [INFO] [stderr] Compiling tokio-reactor v0.1.7 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-threadpool v0.1.9 [INFO] [stderr] Compiling chan-signal v0.3.2 [INFO] [stderr] Compiling tokio-udp v0.1.3 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling tokio-uds v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling tokio-fs v0.1.4 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling lettre_email v0.9.1 [INFO] [stderr] Compiling tokio v0.1.13 [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" "888a31b8ad52f16f9c7d910b47f938a9985979b7ead7158752e61a0da1302ad1"` [INFO] running `"docker" "rm" "-f" "888a31b8ad52f16f9c7d910b47f938a9985979b7ead7158752e61a0da1302ad1"` [INFO] [stdout] 888a31b8ad52f16f9c7d910b47f938a9985979b7ead7158752e61a0da1302ad1