Dec 03 03:45:24.423 INFO testing keymatrix-0.1.2 against 1.30.1 for beta-1.31-5
Dec 03 03:45:24.423 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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 +1.30.1 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 03:45:24.799 INFO [stdout] 8783c11134f94f13b66bbf0ed1256b30f5286b26cd0d619c6bbd6b00eb676de4
Dec 03 03:45:24.805 INFO running `"docker" "start" "-a" "8783c11134f94f13b66bbf0ed1256b30f5286b26cd0d619c6bbd6b00eb676de4"`
Dec 03 03:45:25.572 INFO [stderr] usermod: no changes
Dec 03 03:45:25.672 INFO [stderr]    Compiling keymatrix v0.1.2 (/source)
Dec 03 03:45:26.222 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Dec 03 03:45:26.228 INFO [stderr] su: No module specific data is present
Dec 03 03:45:26.557 INFO running `"docker" "inspect" "8783c11134f94f13b66bbf0ed1256b30f5286b26cd0d619c6bbd6b00eb676de4"`
Dec 03 03:45:26.647 INFO running `"docker" "rm" "-f" "8783c11134f94f13b66bbf0ed1256b30f5286b26cd0d619c6bbd6b00eb676de4"`
Dec 03 03:45:26.941 INFO [stdout] 8783c11134f94f13b66bbf0ed1256b30f5286b26cd0d619c6bbd6b00eb676de4
Dec 03 03:45:26.946 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-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 03:45:27.182 INFO [stdout] 491b5939eb5a70086b1468cf2a9cd06f3f1d0a58275afb7707b2e3f204d9ca4b
Dec 03 03:45:27.187 INFO running `"docker" "start" "-a" "491b5939eb5a70086b1468cf2a9cd06f3f1d0a58275afb7707b2e3f204d9ca4b"`
Dec 03 03:45:28.190 INFO [stderr] usermod: no changes
Dec 03 03:45:28.304 INFO [stderr]    Compiling atsamd21g18a v0.3.1
Dec 03 03:45:28.304 INFO [stderr]    Compiling cortex-m v0.4.3
Dec 03 03:45:28.305 INFO [stderr]    Compiling aligned v0.1.2
Dec 03 03:45:28.305 INFO [stderr]    Compiling bare-metal v0.1.3
Dec 03 03:45:28.305 INFO [stderr]    Compiling cortex-m-rtfm v0.3.4
Dec 03 03:45:28.305 INFO [stderr]    Compiling bitfield v0.13.1
Dec 03 03:45:28.305 INFO [stderr]    Compiling untagged-option v0.1.1
Dec 03 03:45:28.307 INFO [stderr]    Compiling rtfm-core v0.2.0
Dec 03 03:45:28.419 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 03:45:28.419 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/untagged-option-0.1.1/src/lib.rs:5:1
Dec 03 03:45:28.419 INFO [stderr]   |
Dec 03 03:45:28.419 INFO [stderr] 5 | #![feature(untagged_unions, const_fn)]
Dec 03 03:45:28.419 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 03:45:28.419 INFO [stderr] 
Dec 03 03:45:28.419 INFO [stderr] error: aborting due to previous error
Dec 03 03:45:28.419 INFO [stderr] 
Dec 03 03:45:28.419 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 03:45:28.423 INFO [stderr] error: Could not compile `untagged-option`.
Dec 03 03:45:28.423 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 03:45:28.506 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 03:45:28.506 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.3/src/lib.rs:5:35
Dec 03 03:45:28.506 INFO [stderr]   |
Dec 03 03:45:28.506 INFO [stderr] 5 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Dec 03 03:45:28.506 INFO [stderr]   |                                   ^^^^^^^^^^^^^^^^^^
Dec 03 03:45:28.506 INFO [stderr] 
Dec 03 03:45:28.506 INFO [stderr] error: aborting due to previous error
Dec 03 03:45:28.506 INFO [stderr] 
Dec 03 03:45:28.506 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 03:45:28.518 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 03:45:28.518 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
Dec 03 03:45:28.518 INFO [stderr]    |
Dec 03 03:45:28.518 INFO [stderr] 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Dec 03 03:45:28.518 INFO [stderr]    |                                   ^^^^^^^^^^^^^^^^^^
Dec 03 03:45:28.518 INFO [stderr] 
Dec 03 03:45:28.520 INFO [stderr] error: aborting due to previous error
Dec 03 03:45:28.520 INFO [stderr] 
Dec 03 03:45:28.520 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 03:45:28.520 INFO [stderr] error: Could not compile `bare-metal`.
Dec 03 03:45:28.520 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 03:45:28.539 INFO [stderr] error: Could not compile `aligned`.
Dec 03 03:45:28.539 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 03:45:30.318 INFO [stderr] error: build failed
Dec 03 03:45:30.318 INFO [stderr] su: No module specific data is present
Dec 03 03:45:30.661 INFO running `"docker" "inspect" "491b5939eb5a70086b1468cf2a9cd06f3f1d0a58275afb7707b2e3f204d9ca4b"`
Dec 03 03:45:30.842 INFO running `"docker" "rm" "-f" "491b5939eb5a70086b1468cf2a9cd06f3f1d0a58275afb7707b2e3f204d9ca4b"`
Dec 03 03:45:31.022 INFO [stdout] 491b5939eb5a70086b1468cf2a9cd06f3f1d0a58275afb7707b2e3f204d9ca4b