[INFO] updating cached repository Eldalar/Hex
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Eldalar/Hex
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Eldalar/Hex" "work/ex/beta-1.38-1/sources/1.37.0/gh/Eldalar/Hex"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Eldalar/Hex'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Eldalar/Hex" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Eldalar/Hex"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Eldalar/Hex'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dacd366a1c040a66a5e99fe40650393558f5132a
[INFO] sha for GitHub repo Eldalar/Hex: dacd366a1c040a66a5e99fe40650393558f5132a
[INFO] validating manifest of Eldalar/Hex 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 Eldalar/Hex 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 Eldalar/Hex
[INFO] finished frobbing Eldalar/Hex
[INFO] frobbed toml for Eldalar/Hex written to work/ex/beta-1.38-1/sources/1.37.0/gh/Eldalar/Hex/Cargo.toml
[INFO] started frobbing Eldalar/Hex
[INFO] finished frobbing Eldalar/Hex
[INFO] frobbed toml for Eldalar/Hex written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Eldalar/Hex/Cargo.toml
[INFO] crate Eldalar/Hex already has a lockfile, it will not be regenerated
[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 Eldalar/Hex 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-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Eldalar/Hex:/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] b4947ae4100f67a1683ab85c51b46012e9bf6148802ceab69afd03169e5ccee4
[INFO] running `"docker" "start" "-a" "b4947ae4100f67a1683ab85c51b46012e9bf6148802ceab69afd03169e5ccee4"`
[INFO] [stderr]    Compiling libloading v0.4.0
[INFO] [stderr]    Compiling procedural-masquerade v0.1.2
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling rental-impl v0.4.11
[INFO] [stderr]    Compiling rental v0.4.11
[INFO] [stderr]    Compiling al-sys v0.5.1
[INFO] [stderr]    Compiling alto v2.0.0 (https://github.com/Eldalar/alto#8e47a427)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/alto-0cacbe2ee1ac4bb1/8e47a42/src/alc.rs:910:59
[INFO] [stderr]     |
[INFO] [stderr] 910 |     pub fn capture_samples<R: AsBufferDataMut<F>>(&mut self, &mut data: R) -> AltoResult<()> {
[INFO] [stderr]     |                                                              ^^^^^^^^^----
[INFO] [stderr]     |                                                              |
[INFO] [stderr]     |                                                              expected type parameter, found &mut _
[INFO] [stderr]     |                                                              help: did you mean `data`: `&R`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `R`
[INFO] [stderr]                found type `&mut _`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `alto`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b4947ae4100f67a1683ab85c51b46012e9bf6148802ceab69afd03169e5ccee4"`
[INFO] running `"docker" "rm" "-f" "b4947ae4100f67a1683ab85c51b46012e9bf6148802ceab69afd03169e5ccee4"`
[INFO] [stdout] b4947ae4100f67a1683ab85c51b46012e9bf6148802ceab69afd03169e5ccee4