[INFO] updating cached repository munk/ferrous-comet
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/munk/ferrous-comet
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/munk/ferrous-comet" "work/ex/beta-1.38-1/sources/1.37.0/gh/munk/ferrous-comet"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/munk/ferrous-comet'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/munk/ferrous-comet" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/munk/ferrous-comet"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/munk/ferrous-comet'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 61a092d78a3fc8332cf1b3f83a2af7beb359b118
[INFO] sha for GitHub repo munk/ferrous-comet: 61a092d78a3fc8332cf1b3f83a2af7beb359b118
[INFO] validating manifest of munk/ferrous-comet 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 munk/ferrous-comet 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 munk/ferrous-comet
[INFO] finished frobbing munk/ferrous-comet
[INFO] frobbed toml for munk/ferrous-comet written to work/ex/beta-1.38-1/sources/1.37.0/gh/munk/ferrous-comet/Cargo.toml
[INFO] started frobbing munk/ferrous-comet
[INFO] finished frobbing munk/ferrous-comet
[INFO] frobbed toml for munk/ferrous-comet written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/munk/ferrous-comet/Cargo.toml
[INFO] crate munk/ferrous-comet 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing munk/ferrous-comet 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/munk/ferrous-comet:/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] 1b4a0c1db58947c422f1f690eddb8ed41fa6d0baf5f4573fb1f4e4cde4f957e2
[INFO] running `"docker" "start" "-a" "1b4a0c1db58947c422f1f690eddb8ed41fa6d0baf5f4573fb1f4e4cde4f957e2"`
[INFO] [stderr]    Compiling asteroid v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | / fn parse_line(line: str) -> Vec<str> {
[INFO] [stderr] 5 | |     return line.split(',').collect()
[INFO] [stderr] 6 | | }
[INFO] [stderr]   | |_^ doesn't have a size known at compile-time
[INFO] [stderr]   |
[INFO] [stderr]   = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]   = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]   = note: required by `std::vec::Vec`
[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 `asteroid`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1b4a0c1db58947c422f1f690eddb8ed41fa6d0baf5f4573fb1f4e4cde4f957e2"`
[INFO] running `"docker" "rm" "-f" "1b4a0c1db58947c422f1f690eddb8ed41fa6d0baf5f4573fb1f4e4cde4f957e2"`
[INFO] [stdout] 1b4a0c1db58947c422f1f690eddb8ed41fa6d0baf5f4573fb1f4e4cde4f957e2