[INFO] updating cached repository theSeafarer/arduino_hal [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/theSeafarer/arduino_hal [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/theSeafarer/arduino_hal" "work/ex/beta-1.38-1/sources/1.37.0/gh/theSeafarer/arduino_hal"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/theSeafarer/arduino_hal'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/theSeafarer/arduino_hal" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/theSeafarer/arduino_hal"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/theSeafarer/arduino_hal'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 36fdeaa5b033a5431480453ce8b4ef836c1cbb34 [INFO] sha for GitHub repo theSeafarer/arduino_hal: 36fdeaa5b033a5431480453ce8b4ef836c1cbb34 [INFO] validating manifest of theSeafarer/arduino_hal 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 theSeafarer/arduino_hal 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 theSeafarer/arduino_hal [INFO] finished frobbing theSeafarer/arduino_hal [INFO] frobbed toml for theSeafarer/arduino_hal written to work/ex/beta-1.38-1/sources/1.37.0/gh/theSeafarer/arduino_hal/Cargo.toml [INFO] started frobbing theSeafarer/arduino_hal [INFO] finished frobbing theSeafarer/arduino_hal [INFO] frobbed toml for theSeafarer/arduino_hal written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/theSeafarer/arduino_hal/Cargo.toml [INFO] crate theSeafarer/arduino_hal 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing theSeafarer/arduino_hal 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/theSeafarer/arduino_hal:/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] 4353b4336247cf42ff0e9a7dd3e35fa338832d7eea52a6b54b5ed3603bccaf20 [INFO] running `"docker" "start" "-a" "4353b4336247cf42ff0e9a7dd3e35fa338832d7eea52a6b54b5ed3603bccaf20"` [INFO] [stderr] Compiling nb v0.1.1 [INFO] [stderr] Compiling ux v0.1.2 [INFO] [stderr] Compiling embedded-hal v0.2.1 [INFO] [stderr] Compiling arduino_hal v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | #![feature(asm)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | #![feature(never_type)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:8:1 [INFO] [stderr] | [INFO] [stderr] 8 | #![feature(lang_items)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `self::SerialError::*` [INFO] [stderr] --> src/serial.rs:190:13 [INFO] [stderr] | [INFO] [stderr] 190 | use self::SerialError::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `hal::spi` [INFO] [stderr] --> src/spi.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use hal::spi; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `hal::blocking::spi as bspi` [INFO] [stderr] --> src/spi.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use hal::blocking::spi as bspi; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `read_volatile`, `write_volatile` [INFO] [stderr] --> src/spi.rs:8:17 [INFO] [stderr] | [INFO] [stderr] 8 | use core::ptr::{read_volatile, write_volatile}; [INFO] [stderr] | ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::reg::*` [INFO] [stderr] --> src/spi.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use super::reg::*; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `arduino_hal`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "4353b4336247cf42ff0e9a7dd3e35fa338832d7eea52a6b54b5ed3603bccaf20"` [INFO] running `"docker" "rm" "-f" "4353b4336247cf42ff0e9a7dd3e35fa338832d7eea52a6b54b5ed3603bccaf20"` [INFO] [stdout] 4353b4336247cf42ff0e9a7dd3e35fa338832d7eea52a6b54b5ed3603bccaf20