[INFO] updating cached repository ponchoalv/rust-chat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ponchoalv/rust-chat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ponchoalv/rust-chat" "work/ex/beta-1.38-1/sources/1.37.0/gh/ponchoalv/rust-chat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ponchoalv/rust-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ponchoalv/rust-chat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ponchoalv/rust-chat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ponchoalv/rust-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2761c4b80652ba7fa349d2249622630d4ef766a5
[INFO] sha for GitHub repo ponchoalv/rust-chat: 2761c4b80652ba7fa349d2249622630d4ef766a5
[INFO] validating manifest of ponchoalv/rust-chat 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 ponchoalv/rust-chat 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 ponchoalv/rust-chat
[INFO] finished frobbing ponchoalv/rust-chat
[INFO] frobbed toml for ponchoalv/rust-chat written to work/ex/beta-1.38-1/sources/1.37.0/gh/ponchoalv/rust-chat/Cargo.toml
[INFO] started frobbing ponchoalv/rust-chat
[INFO] finished frobbing ponchoalv/rust-chat
[INFO] frobbed toml for ponchoalv/rust-chat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ponchoalv/rust-chat/Cargo.toml
[INFO] crate ponchoalv/rust-chat 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ponchoalv/rust-chat 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-7/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/ponchoalv/rust-chat:/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] f7b43ac473e8e8c595cd27460143bce5e7511c0796d014131c0064566d68f821
[INFO] running `"docker" "start" "-a" "f7b43ac473e8e8c595cd27460143bce5e7511c0796d014131c0064566d68f821"`
[INFO] [stderr]    Compiling gcc v0.3.38
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.21
[INFO] [stderr]    Compiling byteorder v0.3.13
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling sha1 v0.1.1
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling miow v0.1.3
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: invalid unicode character escape
[INFO] [stderr]   --> src/frame.rs:67:39
[INFO] [stderr]    |
[INFO] [stderr] 67 |         println!("Hello\x20W\u{f3}rld!\u{abcdef}");
[INFO] [stderr]    |                                       ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: unicode escape must be at most 10FFFF
[INFO] [stderr] 
[INFO] [stderr] error[E0583]: file not found for module `stuff`
[INFO] [stderr]  --> src/frame.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | mod stuff;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: name the file either frame/stuff.rs or frame/stuff/mod.rs inside the directory "src"
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0583`.
[INFO] [stderr] error: Could not compile `chat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f7b43ac473e8e8c595cd27460143bce5e7511c0796d014131c0064566d68f821"`
[INFO] running `"docker" "rm" "-f" "f7b43ac473e8e8c595cd27460143bce5e7511c0796d014131c0064566d68f821"`
[INFO] [stdout] f7b43ac473e8e8c595cd27460143bce5e7511c0796d014131c0064566d68f821