[INFO] updating cached repository AskePit/note_gen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AskePit/note_gen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AskePit/note_gen" "work/ex/beta-1.37-6/sources/1.36.0/gh/AskePit/note_gen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/AskePit/note_gen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AskePit/note_gen" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AskePit/note_gen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AskePit/note_gen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9cb62bd28f5bfe919ed27b267500e596af3d290b
[INFO] sha for GitHub repo AskePit/note_gen: 9cb62bd28f5bfe919ed27b267500e596af3d290b
[INFO] validating manifest of AskePit/note_gen on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AskePit/note_gen on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AskePit/note_gen
[INFO] finished frobbing AskePit/note_gen
[INFO] frobbed toml for AskePit/note_gen written to work/ex/beta-1.37-6/sources/1.36.0/gh/AskePit/note_gen/Cargo.toml
[INFO] started frobbing AskePit/note_gen
[INFO] finished frobbing AskePit/note_gen
[INFO] frobbed toml for AskePit/note_gen written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AskePit/note_gen/Cargo.toml
[INFO] crate AskePit/note_gen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing AskePit/note_gen against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/AskePit/note_gen:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 45b085a8c135cde0359f196ea28bde5db84eae3100c0349a90e2808247d2faa5
[INFO] running `"docker" "start" "-a" "45b085a8c135cde0359f196ea28bde5db84eae3100c0349a90e2808247d2faa5"`
[INFO] [stderr]    Compiling note_gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]   --> src/main.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         String::from(Self::rand().to_str())
[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 `Self`
[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]    = help: consider adding a `where Self: std::marker::Sized` bound
[INFO] [stderr]    = note: the return type of a function must have a statically known size
[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 `note_gen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "45b085a8c135cde0359f196ea28bde5db84eae3100c0349a90e2808247d2faa5"`
[INFO] running `"docker" "rm" "-f" "45b085a8c135cde0359f196ea28bde5db84eae3100c0349a90e2808247d2faa5"`
[INFO] [stdout] 45b085a8c135cde0359f196ea28bde5db84eae3100c0349a90e2808247d2faa5