Dec 15 06:52:07.518 INFO testing keymatrix-0.1.2 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 06:52:07.518 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 06:52:07.724 INFO [stdout] da0277880af3551df2a9631f5b95f443fd8fad545b8c026e2bb6f1fb0de16527
Dec 15 06:52:07.726 INFO running `"docker" "start" "-a" "da0277880af3551df2a9631f5b95f443fd8fad545b8c026e2bb6f1fb0de16527"`
Dec 15 06:52:08.197 INFO [stderr] usermod: no changes
Dec 15 06:52:08.307 INFO [stderr]    Compiling keymatrix v0.1.2 (/source)
Dec 15 06:52:09.027 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 15 06:52:09.040 INFO [stderr] su: No module specific data is present
Dec 15 06:52:09.879 INFO running `"docker" "inspect" "da0277880af3551df2a9631f5b95f443fd8fad545b8c026e2bb6f1fb0de16527"`
Dec 15 06:52:10.160 INFO running `"docker" "rm" "-f" "da0277880af3551df2a9631f5b95f443fd8fad545b8c026e2bb6f1fb0de16527"`
Dec 15 06:52:10.501 INFO [stdout] da0277880af3551df2a9631f5b95f443fd8fad545b8c026e2bb6f1fb0de16527
Dec 15 06:52:10.512 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 06:52:10.967 INFO [stdout] c09fff27da3efc3af04fe50ea927da29396af4aca77aa1af8c467ae8730b9a0f
Dec 15 06:52:10.969 INFO running `"docker" "start" "-a" "c09fff27da3efc3af04fe50ea927da29396af4aca77aa1af8c467ae8730b9a0f"`
Dec 15 06:52:11.936 INFO [stderr] usermod: no changes
Dec 15 06:52:12.115 INFO [stderr]    Compiling atsamd21g18a v0.3.1
Dec 15 06:52:12.115 INFO [stderr]    Compiling cortex-m v0.3.1
Dec 15 06:52:12.115 INFO [stderr]    Compiling bitfield v0.13.1
Dec 15 06:52:12.131 INFO [stderr]    Compiling cortex-m-rtfm v0.3.4
Dec 15 06:52:12.132 INFO [stderr]    Compiling rtfm-core v0.2.0
Dec 15 06:52:12.132 INFO [stderr]    Compiling panic-abort v0.2.0
Dec 15 06:52:12.136 INFO [stderr]    Compiling mashup-impl v0.1.9
Dec 15 06:52:12.143 INFO [stderr]    Compiling cortex-m-rt-macros v0.1.4
Dec 15 06:52:12.222 INFO [stderr] error[E0557]: feature has been removed
Dec 15 06:52:12.222 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.2.0/src/lib.rs:22:12
Dec 15 06:52:12.222 INFO [stderr]    |
Dec 15 06:52:12.222 INFO [stderr] 22 | #![feature(panic_implementation)]
Dec 15 06:52:12.222 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:52:12.222 INFO [stderr]    |
Dec 15 06:52:12.222 INFO [stderr] note: subsumed by `#[panic_handler]`
Dec 15 06:52:12.222 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.2.0/src/lib.rs:22:12
Dec 15 06:52:12.222 INFO [stderr]    |
Dec 15 06:52:12.222 INFO [stderr] 22 | #![feature(panic_implementation)]
Dec 15 06:52:12.222 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:52:12.222 INFO [stderr] 
Dec 15 06:52:12.387 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 15 06:52:12.387 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.2.0/src/lib.rs:28:3
Dec 15 06:52:12.387 INFO [stderr]    |
Dec 15 06:52:12.387 INFO [stderr] 28 | #[panic_implementation]
Dec 15 06:52:12.387 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:52:12.387 INFO [stderr]    |
Dec 15 06:52:12.387 INFO [stderr]    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Dec 15 06:52:12.387 INFO [stderr] 
Dec 15 06:52:12.391 INFO [stderr] error: aborting due to 2 previous errors
Dec 15 06:52:12.391 INFO [stderr] 
Dec 15 06:52:12.391 INFO [stderr] Some errors occurred: E0557, E0658.
Dec 15 06:52:12.391 INFO [stderr] For more information about an error, try `rustc --explain E0557`.
Dec 15 06:52:12.391 INFO [stderr] error: Could not compile `panic-abort`.
Dec 15 06:52:12.391 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 15 06:52:17.703 INFO [stderr] error: build failed
Dec 15 06:52:17.703 INFO [stderr] su: No module specific data is present
Dec 15 06:52:18.099 INFO running `"docker" "inspect" "c09fff27da3efc3af04fe50ea927da29396af4aca77aa1af8c467ae8730b9a0f"`
Dec 15 06:52:18.441 INFO running `"docker" "rm" "-f" "c09fff27da3efc3af04fe50ea927da29396af4aca77aa1af8c467ae8730b9a0f"`
Dec 15 06:52:18.830 INFO [stdout] c09fff27da3efc3af04fe50ea927da29396af4aca77aa1af8c467ae8730b9a0f