[INFO] crate interrupture 0.1.1 is already in cache
[INFO] extracting crate interrupture 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/interrupture/0.1.1
[INFO] extracting crate interrupture 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/interrupture/0.1.1
[INFO] validating manifest of interrupture-0.1.1 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 interrupture-0.1.1 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 interrupture-0.1.1
[INFO] finished frobbing interrupture-0.1.1
[INFO] frobbed toml for interrupture-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/interrupture/0.1.1/Cargo.toml
[INFO] started frobbing interrupture-0.1.1
[INFO] finished frobbing interrupture-0.1.1
[INFO] frobbed toml for interrupture-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/interrupture/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 interrupture-0.1.1 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/interrupture/0.1.1:/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] ad3900a10304e35d7b7f59539c72a9ee2bd6333e8dc39408f40e88fb7e272645
[INFO] running `"docker" "start" "-a" "ad3900a10304e35d7b7f59539c72a9ee2bd6333e8dc39408f40e88fb7e272645"`
[INFO] [stderr]    Compiling interrupture v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | #![feature(alloc_prelude)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | #![feature(optin_builtin_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:45:30
[INFO] [stderr]    |
[INFO] [stderr] 45 | static mut ISRS: [Option<Box<FnMut()>>; 98] = [
[INFO] [stderr]    |                              ^^^^^^^ help: use `dyn`: `dyn FnMut()`
[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/lib.rs:56:50
[INFO] [stderr]    |
[INFO] [stderr] 56 | static mut DEFAULT_INTERRUPT_HANDLER: Option<Box<FnMut(u8)>> = None;
[INFO] [stderr]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn FnMut(u8)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:216:17
[INFO] [stderr]     |
[INFO] [stderr] 216 |             Box<FnMut(u8) + Send>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u8) + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:217:17
[INFO] [stderr]     |
[INFO] [stderr] 217 |             Box<FnMut(u8) + 'static>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u8) + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:320:29
[INFO] [stderr]     |
[INFO] [stderr] 320 |             transmute::<Box<FnMut()>, Box<FnMut() + 'static + Send>>(Box::new(move || {
[INFO] [stderr]     |                             ^^^^^^^ help: use `dyn`: `dyn FnMut()`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:320:43
[INFO] [stderr]     |
[INFO] [stderr] 320 |             transmute::<Box<FnMut()>, Box<FnMut() + 'static + Send>>(Box::new(move || {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() + 'static + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:373:29
[INFO] [stderr]     |
[INFO] [stderr] 373 |             transmute::<Box<FnMut() + Send>, Box<FnMut() + 'static + Send>>(Box::new(isr))
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:373:50
[INFO] [stderr]     |
[INFO] [stderr] 373 |             transmute::<Box<FnMut() + Send>, Box<FnMut() + 'static + Send>>(Box::new(isr))
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() + 'static + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:389:24
[INFO] [stderr]     |
[INFO] [stderr] 389 |         isr_boxed: Box<FnMut() + 'static + Send>,
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() + 'static + Send`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `interrupture`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ad3900a10304e35d7b7f59539c72a9ee2bd6333e8dc39408f40e88fb7e272645"`
[INFO] running `"docker" "rm" "-f" "ad3900a10304e35d7b7f59539c72a9ee2bd6333e8dc39408f40e88fb7e272645"`
[INFO] [stdout] ad3900a10304e35d7b7f59539c72a9ee2bd6333e8dc39408f40e88fb7e272645