Dec 03 00:15:37.648 INFO testing nrf52840-0.2.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 00:15:37.648 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 00:15:38.311 INFO [stdout] 88c1b8781c18fbda986dccb631b95af04e6ee31a177416eda6358e587103319d
Dec 03 00:15:38.319 INFO running `"docker" "start" "-a" "88c1b8781c18fbda986dccb631b95af04e6ee31a177416eda6358e587103319d"`
Dec 03 00:15:39.814 INFO [stderr] usermod: no changes
Dec 03 00:15:39.933 INFO [stderr]    Compiling nrf52840 v0.2.0 (/source)
Dec 03 00:15:42.515 INFO [stderr] warning: lint `private_no_mangle_statics` has been removed: `no longer an warning, #[no_mangle] statics always exported`
Dec 03 00:15:42.515 INFO [stderr]     --> src/lib.rs:1643:9
Dec 03 00:15:42.515 INFO [stderr]      |
Dec 03 00:15:42.515 INFO [stderr] 1643 | #[allow(private_no_mangle_statics)]
Dec 03 00:15:42.515 INFO [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:15:42.515 INFO [stderr]      |
Dec 03 00:15:42.515 INFO [stderr] note: lint level defined here
Dec 03 00:15:42.515 INFO [stderr]     --> src/lib.rs:3:9
Dec 03 00:15:42.515 INFO [stderr]      |
Dec 03 00:15:42.515 INFO [stderr] 3    | #![deny(warnings)]
Dec 03 00:15:42.515 INFO [stderr]      |         ^^^^^^^^
Dec 03 00:15:42.515 INFO [stderr]      = note: #[warn(renamed_and_removed_lints)] implied by #[warn(warnings)]
Dec 03 00:15:42.515 INFO [stderr] 
Dec 03 00:15:45.903 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 00:15:45.903 INFO [stderr]  --> src/lib.rs:6:1
Dec 03 00:15:45.903 INFO [stderr]   |
Dec 03 00:15:45.903 INFO [stderr] 6 | #![feature(untagged_unions)]
Dec 03 00:15:45.903 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:15:45.903 INFO [stderr] 
Dec 03 00:15:46.511 INFO [stderr] error: aborting due to previous error
Dec 03 00:15:46.511 INFO [stderr] 
Dec 03 00:15:46.511 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 00:15:46.527 INFO [stderr] error: Could not compile `nrf52840`.
Dec 03 00:15:46.527 INFO [stderr] 
Dec 03 00:15:46.527 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 00:15:46.529 INFO [stderr] su: No module specific data is present
Dec 03 00:15:47.087 INFO running `"docker" "inspect" "88c1b8781c18fbda986dccb631b95af04e6ee31a177416eda6358e587103319d"`
Dec 03 00:15:47.337 INFO running `"docker" "rm" "-f" "88c1b8781c18fbda986dccb631b95af04e6ee31a177416eda6358e587103319d"`
Dec 03 00:15:47.651 INFO [stdout] 88c1b8781c18fbda986dccb631b95af04e6ee31a177416eda6358e587103319d