[INFO] updating cached repository https://github.com/mattmac4241/po-tweet
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/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] 217cd5c078fc4a761c64183b5380513aa4e6d69e
[INFO] checking mattmac4241/po-tweet against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmac4241%2Fpo-tweet" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattmac4241/po-tweet on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mattmac4241/po-tweet
[INFO] finished tweaking git repo https://github.com/mattmac4241/po-tweet
[INFO] tweaked toml for git repo https://github.com/mattmac4241/po-tweet written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mattmac4241/po-tweet already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (rocket_contrib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aaf788bf9c0333644d30240b25d781a9b822942c7c5807457e72a7e6fd7f1469
[INFO] running `"docker" "start" "-a" "aaf788bf9c0333644d30240b25d781a9b822942c7c5807457e72a7e6fd7f1469"`
[INFO] [stderr] warning: dependency (rocket_contrib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling ring v0.3.1
[INFO] [stderr]     Checking untrusted v0.3.2
[INFO] [stderr]     Checking serde v0.8.22
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling syn v0.10.6
[INFO] [stderr]    Compiling rocket_codegen v0.1.5
[INFO] [stderr]    Compiling pq-sys v0.2.7
[INFO] [stderr] error[E0277]: `&&std::vec::Vec<std::string::String>` is not an iterator
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.3.1/build.rs:206:14
[INFO] [stderr]     |
[INFO] [stderr] 206 |             .args(&args)
[INFO] [stderr]     |              ^^^^ `&&std::vec::Vec<std::string::String>` is not an iterator
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::iter::Iterator` is not implemented for `&&std::vec::Vec<std::string::String>`
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::iter::IntoIterator` for `&&std::vec::Vec<std::string::String>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `ring`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "aaf788bf9c0333644d30240b25d781a9b822942c7c5807457e72a7e6fd7f1469"`
[INFO] running `"docker" "rm" "-f" "aaf788bf9c0333644d30240b25d781a9b822942c7c5807457e72a7e6fd7f1469"`
[INFO] [stdout] aaf788bf9c0333644d30240b25d781a9b822942c7c5807457e72a7e6fd7f1469