[INFO] crate rad1o-firmware 0.0.0 is already in cache
[INFO] extracting crate rad1o-firmware 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/rad1o-firmware/0.0.0
[INFO] extracting crate rad1o-firmware 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rad1o-firmware/0.0.0
[INFO] validating manifest of rad1o-firmware-0.0.0 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 rad1o-firmware-0.0.0 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 rad1o-firmware-0.0.0
[INFO] finished frobbing rad1o-firmware-0.0.0
[INFO] frobbed toml for rad1o-firmware-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rad1o-firmware/0.0.0/Cargo.toml
[INFO] started frobbing rad1o-firmware-0.0.0
[INFO] finished frobbing rad1o-firmware-0.0.0
[INFO] frobbed toml for rad1o-firmware-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rad1o-firmware/0.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rad1o-firmware-0.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rad1o-firmware/0.0.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 9e487134898e3a1bda84ea2fc8e872c22d655dfb1a09e81ae922211047dcd8ee
[INFO] running `"docker" "start" "-a" "9e487134898e3a1bda84ea2fc8e872c22d655dfb1a09e81ae922211047dcd8ee"`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]    Compiling cortex-m-rt v0.6.10
[INFO] [stderr]    Compiling vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling lpc43xx v0.1.0
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rad1o-firmware v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling console-traits v0.2.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling as-slice v0.1.0
[INFO] [stderr]    Compiling fatfs v0.2.0
[INFO] [stderr]    Compiling vga-framebuffer v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/vga-framebuffer-0.2.1/src/lib.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | #![feature(const_fn)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/fatfs-0.2.0/src/dir_entry.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |     pub(crate) fn reset_created(&mut self) {
[INFO] [stderr]     |                                            - expected `()` because of default return type
[INFO] [stderr] 150 |         // nop - user controls timestamps manually
[INFO] [stderr] 151 |         false
[INFO] [stderr]     |         ^^^^^ expected (), found bool
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `()`
[INFO] [stderr]                found type `bool`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/fatfs-0.2.0/src/dir_entry.rs:163:9
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub(crate) fn reset_modified(&mut self) {
[INFO] [stderr]     |                                             - expected `()` because of default return type
[INFO] [stderr] 162 |         // nop - user controls timestamps manually
[INFO] [stderr] 163 |         false
[INFO] [stderr]     |         ^^^^^ expected (), found bool
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `()`
[INFO] [stderr]                found type `bool`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `vga-framebuffer`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `fatfs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9e487134898e3a1bda84ea2fc8e872c22d655dfb1a09e81ae922211047dcd8ee"`
[INFO] running `"docker" "rm" "-f" "9e487134898e3a1bda84ea2fc8e872c22d655dfb1a09e81ae922211047dcd8ee"`
[INFO] [stdout] 9e487134898e3a1bda84ea2fc8e872c22d655dfb1a09e81ae922211047dcd8ee