[INFO] updating cached repository rickyhan/rasta
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rickyhan/rasta
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rickyhan/rasta" "work/ex/beta-1.38-1/sources/1.37.0/gh/rickyhan/rasta"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rickyhan/rasta'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rickyhan/rasta" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rickyhan/rasta"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rickyhan/rasta'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 699bcb28743d6086ce2df2d2f8914263cd265114
[INFO] sha for GitHub repo rickyhan/rasta: 699bcb28743d6086ce2df2d2f8914263cd265114
[INFO] validating manifest of rickyhan/rasta 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 rickyhan/rasta 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 rickyhan/rasta
[INFO] finished frobbing rickyhan/rasta
[INFO] frobbed toml for rickyhan/rasta written to work/ex/beta-1.38-1/sources/1.37.0/gh/rickyhan/rasta/Cargo.toml
[INFO] started frobbing rickyhan/rasta
[INFO] finished frobbing rickyhan/rasta
[INFO] frobbed toml for rickyhan/rasta written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rickyhan/rasta/Cargo.toml
[INFO] crate rickyhan/rasta 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 rickyhan/rasta 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/rickyhan/rasta:/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] 4417f531df77e2585e2a9371e28f67680034fbf4c550cee04e68062aea96d2d1
[INFO] running `"docker" "start" "-a" "4417f531df77e2585e2a9371e28f67680034fbf4c550cee04e68062aea96d2d1"`
[INFO] [stderr]    Compiling num-traits v0.1.42
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling jack-sys v0.2.0
[INFO] [stderr]    Compiling jack v0.6.0
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling num-complex v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling num-bigint v0.1.41
[INFO] [stderr]    Compiling rustfft v2.0.0
[INFO] [stderr]    Compiling num-rational v0.1.41
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling pitch_calc v0.11.1
[INFO] [stderr]    Compiling rasta v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/effects/pedals.rs:7:37
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub pedals: HashMap<String, Box<Effect>>,
[INFO] [stderr]   |                                     ^^^^^^ help: use `dyn`: `dyn Effect`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/effects/pedals.rs:103:31
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 let eff : Box<Effect> = match eff_type.as_str() {
[INFO] [stderr]     |                               ^^^^^^ help: use `dyn`: `dyn Effect`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/effects/pedals.rs:128:48
[INFO] [stderr]     |
[INFO] [stderr] 128 |     pub fn add(&mut self, name: &str, eff: Box<Effect>) {
[INFO] [stderr]     |                                                ^^^^^^ help: use `dyn`: `dyn Effect`
[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 `rasta`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4417f531df77e2585e2a9371e28f67680034fbf4c550cee04e68062aea96d2d1"`
[INFO] running `"docker" "rm" "-f" "4417f531df77e2585e2a9371e28f67680034fbf4c550cee04e68062aea96d2d1"`
[INFO] [stdout] 4417f531df77e2585e2a9371e28f67680034fbf4c550cee04e68062aea96d2d1