[INFO] updating cached repository https://github.com/kdar/rust-socket-activation
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf5103a3f2b2feb7dc86b29b576de13e1439b68a
[INFO] testing kdar/rust-socket-activation against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdar%2Frust-socket-activation" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kdar/rust-socket-activation on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kdar/rust-socket-activation
[INFO] finished tweaking git repo https://github.com/kdar/rust-socket-activation
[INFO] tweaked toml for git repo https://github.com/kdar/rust-socket-activation written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kdar/rust-socket-activation already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 70ce1d689daf2f22cd0541ec7b549088a5fbef6674d50a8851add3aa9ca9160a
[INFO] running `"docker" "start" "-a" "70ce1d689daf2f22cd0541ec7b549088a5fbef6674d50a8851add3aa9ca9160a"`
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling libsystemd-sys v0.1.0
[INFO] [stderr]    Compiling mbox v0.4.1
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `<-`
[INFO] [stderr]    --> /opt/rustwide/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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `mbox`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "70ce1d689daf2f22cd0541ec7b549088a5fbef6674d50a8851add3aa9ca9160a"`
[INFO] running `"docker" "rm" "-f" "70ce1d689daf2f22cd0541ec7b549088a5fbef6674d50a8851add3aa9ca9160a"`
[INFO] [stdout] 70ce1d689daf2f22cd0541ec7b549088a5fbef6674d50a8851add3aa9ca9160a