[INFO] updating cached repository kdar/rust-socket-activation
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kdar/rust-socket-activation
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kdar/rust-socket-activation" "work/ex/beta-1.38-1/sources/1.37.0/gh/kdar/rust-socket-activation"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kdar/rust-socket-activation'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kdar/rust-socket-activation" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kdar/rust-socket-activation"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kdar/rust-socket-activation'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf5103a3f2b2feb7dc86b29b576de13e1439b68a
[INFO] sha for GitHub repo kdar/rust-socket-activation: bf5103a3f2b2feb7dc86b29b576de13e1439b68a
[INFO] validating manifest of kdar/rust-socket-activation 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 kdar/rust-socket-activation 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 kdar/rust-socket-activation
[INFO] finished frobbing kdar/rust-socket-activation
[INFO] frobbed toml for kdar/rust-socket-activation written to work/ex/beta-1.38-1/sources/1.37.0/gh/kdar/rust-socket-activation/Cargo.toml
[INFO] started frobbing kdar/rust-socket-activation
[INFO] finished frobbing kdar/rust-socket-activation
[INFO] frobbed toml for kdar/rust-socket-activation written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kdar/rust-socket-activation/Cargo.toml
[INFO] crate kdar/rust-socket-activation 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 kdar/rust-socket-activation 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-1/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/kdar/rust-socket-activation:/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] 9c3d6dc74587b8cbc38e3e22408f750d7b5eed63dfe51aba15424e880897b144
[INFO] running `"docker" "start" "-a" "9c3d6dc74587b8cbc38e3e22408f750d7b5eed63dfe51aba15424e880897b144"`
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling utf8-cstr v0.1.6
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]    Compiling libsystemd-sys v0.1.0
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.1
[INFO] [stderr]    Compiling mbox v0.4.1
[INFO] [stderr] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `<-`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mbox-0.4.1/src/mbox.rs:192:16
[INFO] [stderr]     |
[INFO] [stderr] 192 |         MALLOC <- value.clone()
[INFO] [stderr]     |                ^^ expected one of 8 possible tokens here
[INFO] [stderr] 
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `mbox`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9c3d6dc74587b8cbc38e3e22408f750d7b5eed63dfe51aba15424e880897b144"`
[INFO] running `"docker" "rm" "-f" "9c3d6dc74587b8cbc38e3e22408f750d7b5eed63dfe51aba15424e880897b144"`
[INFO] [stdout] 9c3d6dc74587b8cbc38e3e22408f750d7b5eed63dfe51aba15424e880897b144