Dec 07 09:16:00.854 INFO testing keymatrix-0.1.2 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 09:16:00.854 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 07 09:16:01.274 INFO [stdout] f59b2cb6ee2587ff24480a886749f5c9c305cdbb82d69e39b8e9052a4d83dbb2
Dec 07 09:16:01.278 INFO running `"docker" "start" "-a" "f59b2cb6ee2587ff24480a886749f5c9c305cdbb82d69e39b8e9052a4d83dbb2"`
Dec 07 09:16:01.880 INFO [stderr] usermod: no changes
Dec 07 09:16:01.961 INFO [stderr]    Compiling keymatrix v0.1.2 (/source)
Dec 07 09:16:02.573 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 07 09:16:02.575 INFO [stderr] su: No module specific data is present
Dec 07 09:16:03.004 INFO running `"docker" "inspect" "f59b2cb6ee2587ff24480a886749f5c9c305cdbb82d69e39b8e9052a4d83dbb2"`
Dec 07 09:16:03.131 INFO running `"docker" "rm" "-f" "f59b2cb6ee2587ff24480a886749f5c9c305cdbb82d69e39b8e9052a4d83dbb2"`
Dec 07 09:16:03.248 INFO [stdout] f59b2cb6ee2587ff24480a886749f5c9c305cdbb82d69e39b8e9052a4d83dbb2
Dec 07 09:16:03.254 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 07 09:16:03.493 INFO [stdout] 53ea1efdee57b0d75508daf18fdf4929642efad8bdaa8473f56d7f2adc6596f8
Dec 07 09:16:03.495 INFO running `"docker" "start" "-a" "53ea1efdee57b0d75508daf18fdf4929642efad8bdaa8473f56d7f2adc6596f8"`
Dec 07 09:16:04.054 INFO [stderr] usermod: no changes
Dec 07 09:16:04.191 INFO [stderr]    Compiling cortex-m v0.3.1
Dec 07 09:16:04.191 INFO [stderr]    Compiling cortex-m-rtfm v0.3.4
Dec 07 09:16:04.192 INFO [stderr]    Compiling rtfm-core v0.2.0
Dec 07 09:16:04.192 INFO [stderr]    Compiling panic-abort v0.2.0
Dec 07 09:16:04.216 INFO [stderr]    Compiling atsamd21g18a v0.3.1
Dec 07 09:16:04.233 INFO [stderr]    Compiling mashup-impl v0.1.9
Dec 07 09:16:04.237 INFO [stderr]    Compiling syn v0.14.9
Dec 07 09:16:04.237 INFO [stderr]    Compiling synstructure v0.10.1
Dec 07 09:16:04.264 INFO [stderr]    Compiling cortex-m-rt-macros v0.1.3
Dec 07 09:16:04.332 INFO [stderr] error[E0557]: feature has been removed
Dec 07 09:16:04.332 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.2.0/src/lib.rs:22:12
Dec 07 09:16:04.332 INFO [stderr]    |
Dec 07 09:16:04.332 INFO [stderr] 22 | #![feature(panic_implementation)]
Dec 07 09:16:04.332 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 07 09:16:04.332 INFO [stderr]    |
Dec 07 09:16:04.332 INFO [stderr] note: subsumed by `#[panic_handler]`
Dec 07 09:16:04.332 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.2.0/src/lib.rs:22:12
Dec 07 09:16:04.332 INFO [stderr]    |
Dec 07 09:16:04.332 INFO [stderr] 22 | #![feature(panic_implementation)]
Dec 07 09:16:04.332 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 07 09:16:04.332 INFO [stderr] 
Dec 07 09:16:04.356 INFO [stderr] error[E0658]: The attribute `panic_implementation` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Dec 07 09:16:04.356 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.2.0/src/lib.rs:28:3
Dec 07 09:16:04.356 INFO [stderr]    |
Dec 07 09:16:04.356 INFO [stderr] 28 | #[panic_implementation]
Dec 07 09:16:04.356 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
Dec 07 09:16:04.356 INFO [stderr]    |
Dec 07 09:16:04.356 INFO [stderr]    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Dec 07 09:16:04.356 INFO [stderr] 
Dec 07 09:16:04.356 INFO [stderr] error: aborting due to 2 previous errors
Dec 07 09:16:04.356 INFO [stderr] 
Dec 07 09:16:04.356 INFO [stderr] Some errors occurred: E0557, E0658.
Dec 07 09:16:04.356 INFO [stderr] For more information about an error, try `rustc --explain E0557`.
Dec 07 09:16:04.368 INFO [stderr] error: Could not compile `panic-abort`.
Dec 07 09:16:04.368 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 07 09:16:20.892 INFO [stderr] error: build failed
Dec 07 09:16:20.892 INFO [stderr] su: No module specific data is present
Dec 07 09:16:21.193 INFO running `"docker" "inspect" "53ea1efdee57b0d75508daf18fdf4929642efad8bdaa8473f56d7f2adc6596f8"`
Dec 07 09:16:21.335 INFO running `"docker" "rm" "-f" "53ea1efdee57b0d75508daf18fdf4929642efad8bdaa8473f56d7f2adc6596f8"`
Dec 07 09:16:21.403 INFO [stdout] 53ea1efdee57b0d75508daf18fdf4929642efad8bdaa8473f56d7f2adc6596f8