[INFO] updating cached repository a-y-u-s-h/tomatos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/a-y-u-s-h/tomatos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/a-y-u-s-h/tomatos" "work/ex/beta-1.38-1/sources/1.37.0/gh/a-y-u-s-h/tomatos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/a-y-u-s-h/tomatos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/a-y-u-s-h/tomatos" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/a-y-u-s-h/tomatos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/a-y-u-s-h/tomatos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8eec2bd7fb8ff83de1bc44ecd7cdc39e46516de
[INFO] sha for GitHub repo a-y-u-s-h/tomatos: b8eec2bd7fb8ff83de1bc44ecd7cdc39e46516de
[INFO] validating manifest of a-y-u-s-h/tomatos 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 a-y-u-s-h/tomatos 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 a-y-u-s-h/tomatos
[INFO] finished frobbing a-y-u-s-h/tomatos
[INFO] frobbed toml for a-y-u-s-h/tomatos written to work/ex/beta-1.38-1/sources/1.37.0/gh/a-y-u-s-h/tomatos/Cargo.toml
[INFO] started frobbing a-y-u-s-h/tomatos
[INFO] finished frobbing a-y-u-s-h/tomatos
[INFO] frobbed toml for a-y-u-s-h/tomatos written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/a-y-u-s-h/tomatos/Cargo.toml
[INFO] crate a-y-u-s-h/tomatos 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 a-y-u-s-h/tomatos 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/a-y-u-s-h/tomatos:/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] 6e9584dce8de7f0321e70ff63d5c05fbd6ebbbd43036dda051f74858775dd674
[INFO] running `"docker" "start" "-a" "6e9584dce8de7f0321e70ff63d5c05fbd6ebbbd43036dda051f74858775dd674"`
[INFO] [stderr]    Compiling tomatos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> src/main.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 | #![feature(panic_implementation)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: subsumed by `#[panic_handler]`
[INFO] [stderr]   --> src/main.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 | #![feature(panic_implementation)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: The attribute `panic_implementation` is currently unknown to the compiler and may have meaning added to it in the future
[INFO] [stderr]    --> src/main.rs:136:3
[INFO] [stderr]     |
[INFO] [stderr] 136 | #[panic_implementation]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/29642
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | #![feature(panic_implementation)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: `#[panic_handler]` function required, but not found
[INFO] [stderr] 
[INFO] [stderr] error: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `tomatos`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6e9584dce8de7f0321e70ff63d5c05fbd6ebbbd43036dda051f74858775dd674"`
[INFO] running `"docker" "rm" "-f" "6e9584dce8de7f0321e70ff63d5c05fbd6ebbbd43036dda051f74858775dd674"`
[INFO] [stdout] 6e9584dce8de7f0321e70ff63d5c05fbd6ebbbd43036dda051f74858775dd674