[INFO] updating cached repository KenanSulayman/blyat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KenanSulayman/blyat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KenanSulayman/blyat" "work/ex/beta-1.38-1/sources/1.37.0/gh/KenanSulayman/blyat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KenanSulayman/blyat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KenanSulayman/blyat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KenanSulayman/blyat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KenanSulayman/blyat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 97d6410e973d65fe6a8be1b5bf1d4cbdeb604f42
[INFO] sha for GitHub repo KenanSulayman/blyat: 97d6410e973d65fe6a8be1b5bf1d4cbdeb604f42
[INFO] validating manifest of KenanSulayman/blyat 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 KenanSulayman/blyat 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 KenanSulayman/blyat
[INFO] finished frobbing KenanSulayman/blyat
[INFO] frobbed toml for KenanSulayman/blyat written to work/ex/beta-1.38-1/sources/1.37.0/gh/KenanSulayman/blyat/Cargo.toml
[INFO] started frobbing KenanSulayman/blyat
[INFO] finished frobbing KenanSulayman/blyat
[INFO] frobbed toml for KenanSulayman/blyat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KenanSulayman/blyat/Cargo.toml
[INFO] crate KenanSulayman/blyat 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 KenanSulayman/blyat against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KenanSulayman/blyat:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 0c281ea1ea762eb463d98a372534b1ae2b6adfafb98361ee795efe9b6a0bbb5a
[INFO] running `"docker" "start" "-a" "0c281ea1ea762eb463d98a372534b1ae2b6adfafb98361ee795efe9b6a0bbb5a"`
[INFO] [stderr]    Compiling blyat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(try_trait,unboxed_closures)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RefCell`, `time::Duration`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         RefCell
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     time::Duration,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `blyat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0c281ea1ea762eb463d98a372534b1ae2b6adfafb98361ee795efe9b6a0bbb5a"`
[INFO] running `"docker" "rm" "-f" "0c281ea1ea762eb463d98a372534b1ae2b6adfafb98361ee795efe9b6a0bbb5a"`
[INFO] [stdout] 0c281ea1ea762eb463d98a372534b1ae2b6adfafb98361ee795efe9b6a0bbb5a