[INFO] updating cached repository ConnorSkees/requests
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ConnorSkees/requests
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ConnorSkees/requests" "work/ex/beta-1.38-1/sources/1.37.0/gh/ConnorSkees/requests"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ConnorSkees/requests'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ConnorSkees/requests" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ConnorSkees/requests"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ConnorSkees/requests'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 132d2e077c4ad81dbb5a0a611177e58d49e30408
[INFO] sha for GitHub repo ConnorSkees/requests: 132d2e077c4ad81dbb5a0a611177e58d49e30408
[INFO] validating manifest of ConnorSkees/requests 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 ConnorSkees/requests 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 ConnorSkees/requests
[INFO] finished frobbing ConnorSkees/requests
[INFO] frobbed toml for ConnorSkees/requests written to work/ex/beta-1.38-1/sources/1.37.0/gh/ConnorSkees/requests/Cargo.toml
[INFO] started frobbing ConnorSkees/requests
[INFO] finished frobbing ConnorSkees/requests
[INFO] frobbed toml for ConnorSkees/requests written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ConnorSkees/requests/Cargo.toml
[INFO] crate ConnorSkees/requests 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 ConnorSkees/requests 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-3/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/ConnorSkees/requests:/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] 4e4450cbf110cd8e35dd743705ed8523e84ad9b9d06f87d2464b90b15435ce29
[INFO] running `"docker" "start" "-a" "4e4450cbf110cd8e35dd743705ed8523e84ad9b9d06f87d2464b90b15435ce29"`
[INFO] [stderr]    Compiling request v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut request = Request::new(String::from("GET"), String::from("http:/127.0.0.1:3000/"), headers).unwrap();
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    expected reference, found struct `std::string::String`
[INFO] [stderr]    |                                    help: consider borrowing here: `&String::from("GET")`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&'static str`
[INFO] [stderr]               found type `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 E0308`.
[INFO] [stderr] error: Could not compile `request`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4e4450cbf110cd8e35dd743705ed8523e84ad9b9d06f87d2464b90b15435ce29"`
[INFO] running `"docker" "rm" "-f" "4e4450cbf110cd8e35dd743705ed8523e84ad9b9d06f87d2464b90b15435ce29"`
[INFO] [stdout] 4e4450cbf110cd8e35dd743705ed8523e84ad9b9d06f87d2464b90b15435ce29